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  • oracle certification

    - by Victor
    I am a j2ee developer with 6+ yrs of experience. I have scjp1.4 and scwcd 1.4. To puruse my dream of becoming an architect, I wish to round out my knowledge and make my knowledge base broader. To that respect, I have decided to take the 1Z0-047 Oracle Database SQL Expert Exam as a first step. My questions are: What is a good book/resource for this? Should I follow this website http://www.sql-ex.ru/certification/certification.php Also after completing this ceritificate, will I get a physical certificate that I will put on my resume?

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  • New Solaris Cluster!

    - by Jeff Victor
    We released Oracle Solaris Cluster 4.1 recently. OSC offers both High Availability (HA) and also Scalable Services capabilities. HA delivers automatic restart of software on the same cluster node and/or automatic failover from a failed node to a working cluster node. Software and support is available for both x86 and SPARC systems. The Scalable Services features manage multiple cluster nodes all providing a load-balanced service such as web servers or app serves. OSC 4.1 includes the ability to recover services from software failures, failure of hardware components such as DIMMs, CPUs, and I/O cards, a global file system, rolling upgrades, and much more. Oracle Availability Engineering posted a brief description and links to details. Or, you can just download it now!

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  • contractor vs full time employee

    - by Victor
    What is the long term career prospect of a contractor/consultant in IT field vs a full time salaried employee? The usual arguments aside: Stability vs more upfront money;paid leaves vs tax savings;less paperwork vs more freedom;stagnation vs changing job environments etc etc etc Can some one with a long career experience in hopefully both sides of the divide comment on the pros and cons of contracting vs being an employee? This will be beneficial for all if only people with ample experience choose to answer. Comments are always welcome though.

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  • qwebview in pyside after packaged with pyinstaller goes wrong

    - by truease.com
    Here's my code import sys from PySide.QtCore import * from PySide.QtGui import * from PySide.QtWebKit import * from encodings import * from codecs import * class BrowserWindow( QWidget ): def __init__( self, parent=None ): QWidget.__init__( self, parent ) self.Setup() self.SetupEvent() def Setup( self ): self.setWindowTitle( u"Truease Speedy Browser" ) self.addr_input = QLineEdit() self.addr_go = QPushButton( "GO" ) self.addr_bar = QHBoxLayout() self.addr_bar.addWidget( self.addr_input ) self.addr_bar.addWidget( self.addr_go ) for attr in [ QWebSettings.AutoLoadImages, QWebSettings.JavascriptEnabled, QWebSettings.JavaEnabled, QWebSettings.PluginsEnabled, QWebSettings.JavascriptCanOpenWindows, QWebSettings.JavascriptCanAccessClipboard, QWebSettings.DeveloperExtrasEnabled, QWebSettings.SpatialNavigationEnabled, QWebSettings.OfflineStorageDatabaseEnabled, QWebSettings.OfflineWebApplicationCacheEnabled, QWebSettings.LocalStorageEnabled, QWebSettings.LocalStorageDatabaseEnabled, QWebSettings.LocalContentCanAccessRemoteUrls, QWebSettings.LocalContentCanAccessFileUrls, ]: QWebSettings.globalSettings().setAttribute( attr, True ) self.web_view = QWebView() self.web_view.load( "http://www.baidu.com" ) layout = QVBoxLayout() layout.addLayout( self.addr_bar ) layout.addWidget( self.web_view ) self.setLayout( layout ) def SetupEvent( self ): self.connect( self.addr_input, SIGNAL("editingFinished()"), self, SLOT("Load()"), ) self.connect( self.addr_go, SIGNAL("pressed()"), self, SLOT("Load()") ) self.connect( self.web_view, SIGNAL("urlChanged(const QUrl&)"), self, SLOT("SetURL()"), ) def Load( self, *args, **kwargs ): url = self.GetCleanedURL() if url != self.CurrentURL(): self.web_view.load( url ) def SetURL( self, *args, **kwargs ): self.addr_input.setText( self.CurrentURL() ) def GetCleanedURL( self ): url = self.addr_input.text().strip() if not url.startswith("http"): url = "http://" + url return url def CurrentURL( self ): url = self.web_view.url().toString() return url def Main(): app = QApplication( sys.argv ) widget = BrowserWindow() widget.show() return app.exec_() if __name__ == '__main__': sys.exit( Main() ) I works well when i using python browser.py. but it goes wrong after packaged with pyinstaller -w browser.py. it doesn't load images can only display correct text in utf-8 And this is the pyinstaller output: E:\true\wuk\app2>pyinstaller -w b.py 16 INFO: wrote E:\true\wuk\app2\b.spec 16 INFO: Testing for ability to set icons, version resources... 32 INFO: ... resource update available 32 INFO: UPX is not available. 46 INFO: Processing hook hook-os 141 INFO: Processing hook hook-time 157 INFO: Processing hook hook-cPickle 218 INFO: Processing hook hook-_sre 312 INFO: Processing hook hook-cStringIO 407 INFO: Processing hook hook-encodings 421 INFO: Processing hook hook-codecs 750 INFO: Processing hook hook-httplib 750 INFO: Processing hook hook-email 843 INFO: Processing hook hook-email.message 1046 WARNING: library python%s%s required via ctypes not found 1171 INFO: Extending PYTHONPATH with E:\true\wuk\app2 1171 INFO: checking Analysis 1171 INFO: building because b.py changed 1171 INFO: running Analysis out00-Analysis.toc 1171 INFO: Adding Microsoft.VC90.CRT to dependent assemblies of final executable 1171 INFO: Searching for assembly x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww ... 1171 INFO: Found manifest C:\WINDOWS\WinSxS\Manifests\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375.manifest 1187 INFO: Searching for file msvcr90.dll 1187 INFO: Found file C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375\msvcr90.dll 1187 INFO: Searching for file msvcp90.dll 1187 INFO: Found file C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375\msvcp90.dll 1187 INFO: Searching for file msvcm90.dll 1187 INFO: Found file C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375\msvcm90.dll 1266 INFO: Analyzing D:\Applications\Python\lib\site-packages\pyinstaller-2.1-py2.7.egg\PyInstaller\loader\_pyi_bootstrap.py 1266 INFO: Processing hook hook-os 1282 INFO: Processing hook hook-site 1296 INFO: Processing hook hook-encodings 1391 INFO: Processing hook hook-time 1407 INFO: Processing hook hook-cPickle 1468 INFO: Processing hook hook-_sre 1578 INFO: Processing hook hook-cStringIO 1671 INFO: Processing hook hook-codecs 2016 INFO: Processing hook hook-httplib 2016 INFO: Processing hook hook-email 2109 INFO: Processing hook hook-email.message 2312 WARNING: library python%s%s required via ctypes not found 2468 INFO: Processing hook hook-pydoc 2516 INFO: Analyzing D:\Applications\Python\lib\site-packages\pyinstaller-2.1-py2.7.egg\PyInstaller\loader\pyi_importers.py 2609 INFO: Analyzing D:\Applications\Python\lib\site-packages\pyinstaller-2.1-py2.7.egg\PyInstaller\loader\pyi_archive.py 2687 INFO: Analyzing D:\Applications\Python\lib\site-packages\pyinstaller-2.1-py2.7.egg\PyInstaller\loader\pyi_carchive.py 2782 INFO: Analyzing D:\Applications\Python\lib\site-packages\pyinstaller-2.1-py2.7.egg\PyInstaller\loader\pyi_os_path.py 2782 INFO: Analyzing b.py 2796 INFO: Processing hook hook-PySide 2875 INFO: Hidden import 'codecs' has been found otherwise 2875 INFO: Hidden import 'encodings' has been found otherwise 2875 INFO: Looking for run-time hooks 7766 INFO: Using Python library C:\WINDOWS\system32\python27.dll 7796 INFO: E:\true\wuk\app2\build\b\out00-Analysis.toc no change! 7796 INFO: checking PYZ 7812 INFO: checking PKG 7812 INFO: building because E:\true\wuk\app2\build\b\b.exe.manifest changed 7812 INFO: building PKG (CArchive) out00-PKG.pkg 7828 INFO: checking EXE 7843 INFO: rebuilding out00-EXE.toc because pkg is more recent 7843 INFO: building EXE from out00-EXE.toc 7843 INFO: Appending archive to EXE E:\true\wuk\app2\build\b\b.exe 7843 INFO: checking COLLECT 7843 INFO: building COLLECT out00-COLLECT.toc Use pyinstaller browser.py, and in the console window i got QFont::setPixelSize: Pixel size <= 0 (0) QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function SSL_CTX_new QSslSocket: cannot call unresolved function SSL_library_init QSslSocket: cannot call unresolved function ERR_get_error QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function SSL_CTX_new QSslSocket: cannot call unresolved function SSL_library_init QSslSocket: cannot call unresolved function ERR_get_error QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function SSL_CTX_new QSslSocket: cannot call unresolved function SSL_library_init QSslSocket: cannot call unresolved function ERR_get_error QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function SSL_CTX_new QSslSocket: cannot call unresolved function SSL_library_init QSslSocket: cannot call unresolved function ERR_get_error QFont::setPixelSize: Pixel size <= 0 (0)

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  • jquery form validation plugin need help?

    - by python
    </tr> for ($i = 0; $i < $dm_numrec; $i++) { ?> <tr> <td width="266" height="28" valign="top"> <input type="text" name="recommend_to_name<?php echo $i;?>" /> </td> <td height="28" valign="top"> <input type="text" name="recommend_to_email<?php echo $i;?> />" </td> </tr> I used jquery form validation plugin http://bassistance.de/jquery-plugins/jquery-plugin-validation/ <script src="jquery.min.js"></script> <script src="jquery.validate.min.js"></script> <script> $(document).ready(function(){ $('#recommend').validate({ 'rules':{ 'recommend_to_name':'required', 'recommend_to_email':{ 'required':true, 'email':true }, } }); }); </script> How can I validate for the recommend_to_name that its name is a dynamic string from loop: recommend_to_name0 recommend_to_name1 recommend_to_name2 recommend_to_name..

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  • Return pre-UPDATE column values in PostgreSQL without using triggers, functions or other "magic"

    - by Python Larry
    I have a related question, but this is another part of MY puzzle. I would like to get the OLD VALUE of a Column from a Row that was UPDATEd... WITHOUT using Triggers (nor Stored Procedures, nor any other extra, non-SQL/-query entities). The query I have is like this: UPDATE my_table SET processing_by = our_id_info -- unique to this instance WHERE trans_nbr IN ( SELECT trans_nbr FROM my_table GROUP BY trans_nbr HAVING COUNT(trans_nbr) > 1 LIMIT our_limit_to_have_single_process_grab ) RETURNING row_id If I could do "FOR UPDATE ON my_table" at the end of the subquery, that'd be devine (and fix my other question/problem). But, that won't work: can't have this AND a "GROUP BY" (which is necessary for figuring out the COUNT of trans_nbr's). Then I could just take those trans_nbr's and do a query first to get the (soon-to-be-) former processing_by values. I've tried doing like: UPDATE my_table SET processing_by = our_id_info -- unique to this instance FROM my_table old_my_table JOIN ( SELECT trans_nbr FROM my_table GROUP BY trans_nbr HAVING COUNT(trans_nbr) > 1 LIMIT our_limit_to_have_single_process_grab ) sub_my_table ON old_my_table.trans_nbr = sub_my_table.trans_nbr WHERE my_table.trans_nbr = sub_my_table.trans_nbr AND my_table.processing_by = old_my_table.processing_by RETURNING my_table.row_id, my_table.processing_by, old_my_table.processing_by But that can't work; "old_my_table" is not viewable outside of the join; the RETURNING clause is blind to it. I've long since lost count of all the attempts I've made; I have been researching this for literally hours. If I could just find a bullet-proof way to lock the rows in my subquery - and ONLY those rows, and WHEN the subquery happens - all the concurrency issues I'm trying to avoid disappear... UPDATE: [WIPES EGG OFF FACE] Okay, so I had a typo in the non-generic code of the above that I wrote "doesn't work"; it does... thanks to Erwin Brandstetter, below, who stated it would, I re-did it (after a night's sleep, refreshed eyes, and a banana for bfast). Since it took me so long/hard to find this sort of solution, perhaps my embarrassment is worth it? At least this is on SO for posterity now... : What I now have (that works) is like this: UPDATE my_table SET processing_by = our_id_info -- unique to this instance FROM my_table AS old_my_table WHERE trans_nbr IN ( SELECT trans_nbr FROM my_table GROUP BY trans_nbr HAVING COUNT(*) > 1 LIMIT our_limit_to_have_single_process_grab ) AND my_table.row_id = old_my_table.row_id RETURNING my_table.row_id, my_table.processing_by, old_my_table.processing_by AS old_processing_by The COUNT(*) is per a suggestion from Flimzy in a comment on my other (linked above) question. (I was more specific than necessary. [In this instance.])

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  • SQL constructs translated to OOP

    - by python dude
    As someone who comes from the world of Object Orientation, I find it rather difficult to wrap my head around SQL. Recently, however, I realized that the classical SQL construct select X from Y where Z is basically equivalent to the following OOP construct: List<SomeType> results = db.query(new Matcher<SomeType> () { public boolean match(SomeType candidate) { return ...; // checks condition Z on candidate, returns true for match } }; So my question is: What are the OOP equivalents for other SQL constructs, such as joins?

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  • get value of checked[ALL] or unchecked box jquery

    - by python
    I have read this. http://stackoverflow.com/questions/2048485/jquery-checkbox <input type="checkbox" name="checkGroup" id="all"> <input type="checkbox" name="checkGroup" id="one" value="1"> <input type="checkbox" name="checkGroup" id="two" value="2"> <input type="checkbox" name="checkGroup" id="three" value="3"> <input type="hidden" name="storeCheck" value=""> $(function(){ $("#all").click(function(){ $("input:checkbox[name='checkGroup']").attr("checked",$(this).attr("checked")); }); $("input:checkbox[name='checkGroup']:not('#all')").click ( function(){ var totalCheckboxes = $("input:checkbox[name='checkGroup']:not('#all')").length; var checkedCheckboxes = $("input:checkbox[name='checkGroup']:not('#all'):checked").length; if ( totalCheckboxes === checkedCheckboxes ) { $("#all").attr("checked" , true ); } else { $("#all").attr("checked" , false ); } }); }); Demo I am trying to get the value of the checkboxs are checked as an array. for example if I checked All Get value array_check = 1,2,3 and passed this array to hidden name="storeCheck" otherwise: Get value of array_check( checkboxs checked ).and passed this array to hidden name="storeCheck"

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  • Django + WebKit = Broken pipe

    - by Saosin
    I'm running the Django 1.2 development server and I get these Broken Pipe error messages whenever I load a page from it with Chrome or Safari. My co-worker is getting the error as well when he loads a page from his dev server. We don't have these errors when using Opera or Firefox. Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/core/servers/basehttp.py", line 281, in run self.finish_response() File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/core/servers/basehttp.py", line 321, in finish_response self.write(data) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/core/servers/basehttp.py", line 417, in write self._write(data) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/socket.py", line 300, in write self.flush() File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/socket.py", line 286, in flush self._sock.sendall(buffer) error: [Errno 32] Broken pipe Can anyone help me out? I'm going crazy over this!

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  • checkbox update the record using jquery?

    - by python
    <? include("connect.php"); $sql="select * from sampledb"; $res=mysql_query($sql) or die("query failed"); ?> <script type="text/javascript" src="scripts/jquery.js"></script> <script type="text/javascript"> function updateCheckVal() { var valcheck = []; $('#checkbox :checked').each(function() { valcheck.push($(this).val()); }); $('#store_checkbox').val(valcheck) } $(function() { $('#checkbox input').click(updateCheckVal); updateCheckVal(); }); $(function(){ $("a.modify").click(function(){ var val = []; $(':checkbox:checked').each(function(i){ val[i] = $(this).val(); }); $("#deleted_id").val(val); page=$(this).attr("href"); $("#Formcontent").html("loading...").load(page); return false; }); }); </script <form name=""> <table width="100%" border="1" cellpadding="1" cellspacing="1"> <thead> <tr bgcolor="#CCCCCC"> <th></th> <th>ID</th> <th>Fullname</th> </tr> </thead> <tbody> <? while($row=mysql_fetch_assoc($res)){?> <tr> <td id="checkbox"><input type="checkbox" name="chk[]" class="chk" value=<?php echo $row["student_id"];?> ></td> <td><?php echo $row["id"];?></td> <td><?php echo $row["fullname"];?></td> </tr> <? }?> </tbody> </table> <input type="hidden" name="store_checkbox" id="store_checkbox" value=""> <a href="formstudent.php?action=update&id=<?php echo $_POST["store_checkbox"]; ?>" class="modify">modify</a> I want to pass the checkbox value that is checked in something like this: example :formstudent.php?action=update&id=1, I am doing here is pass like this but does not work. <a href="formstudent.php?action=update&id=<?php echo $_POST["store_checkbox"]; ?>" Anybody know how to do this?

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  • Multiple task in one page?(php - mysql - jquery)

    - by python
    My goal is to build an application in a page that can be use multiple task(crud) for example in this html code.there are multiple submit,multiple action in the same page after (user submit (CURD) it will load result table below.) In juery how Can I do this.? <script type="text/javascript" src="jquery.js"></script> <script> $(document).ready(function(){ $("#button1").click(function(){ $('form#crudform').attr({action: "script_1.php"}); $('form#crudform').submit(); }); $("#button2").click(function(){ $('form#crudform').attr({action: "script_2.php"}); $('form#crudform').submit(); }); $("#button3").click(function(){ $('form#crudform').attr({action: "script_3.php"}); $('form#crudform').submit(); }); }); </script> Form CRUD: <form id="crudform" method="post"> <p>Name: <input type="text" name="name"/></p> <p>Age: <input type="text" name="age"/></p> <input type="button" id="button1" value="Cancel" /> <input type="button" id="button2" value="Save" /> <input type="button" id="button3" value="Update" /> </form> Result: <form id="result" method="post"> <table border="1"> <tr> <tr><td></td><td>Name</td><td>Age</td> </tr> <tr><td><input type="checkbox" name="name1"></td><td>Name1</td><td>10</td><tr> <tr><td><input type="checkbox" name="name1"></td><td>Name2</td><td>15</td></tr> <tr><td><input type="checkbox" name="name3"></td><td>Name3</td><td>16</td></tr> </table> <input type="button" id="button4" value="change" /> <input type="button" id="button5" value="drop" /> </form> Anybody know the tutorials relating ..with my tasks.or tips,guide.....are welconme :)

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  • Scala's lazy arguments: How do they work?

    - by python dude
    In the file Parsers.scala (Scala 2.9.1) from the parser combinators library I seem to have come across a lesser known Scala feature called "lazy arguments". Here's an example: def ~ [U](q: => Parser[U]): Parser[~[T, U]] = { lazy val p = q // lazy argument (for(a <- this; b <- p) yield new ~(a,b)).named("~") } Apparently, there's something going on here with the assignment of the call-by-name argument q to the lazy val p. So far I have not been able to work out what this does and why it's useful. Can anyone help?

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  • jquery form validate not allow space for username field?

    - by python
    I have used http://bassistance.de/jquery-plugins/jquery-plugin-validation/ my form validate : $("#form_person").validate({ rules: { username: { required: true, minlength: 2, maxlength:15 }, password: { required: true, minlength: 2 }, confirm_password: { required: true, minlength: 2, equalTo: "#password" }, email: { required: true, email: true } }, messages: { username: { required: "Please enter a username", maxlength:"max length 15 digits", minlength: "Your username must consist of at least 2 characters" }, password: { required: "Please provide a password", minlength: "Your password must be at least 5 characters long" }, confirm_password: { required: "Please provide a confirm password", minlength: "Your password must be at least 5 characters long", equalTo: "Please enter the same password as above" } }); Anybody help me to validate not allow space on username? thanks

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  • join 03 table in the database codeIgniter

    - by python
    with my table. person_id serial NOT NULL, firstname character varying(30) NOT NULL, lastname character varying(30), email character varying(50), username character varying(20) NOT NULL, "password" character varying(100) NOT NULL, gender character varying(10), dob date, accesslevel smallint NOT NULL, company_id integer NOT NULL,//Reference to table company position_id integer NOT NULL,//Reference to table position company_id serial NOT NULL, company_name character varying(80) NOT NULL, description character varying(255), address character varying(100) NOT NULL, In my controller ........................ // load data $persons = $this->person_model->get_paged_list(10,0); // generate table data $this->load->library('table'); $this->table->set_empty("&nbsp;"); $this->table->set_heading('No', 'FirstName', 'LastName','E-mail','Company''Gender', 'Date of Birth', 'Actions'); foreach ($persons as $person){ $this->table->add_row(++$i, $person->firstname, $person->lastname, $person->email, $person->company_name, //HOW CAN I GOT THE POSITION TITLE ?, strtoupper($person->gender)=='M'? 'Male':'Female', date('d-m-Y',strtotime($person->dob)), } My model <?php class Person_Model extends Model { private $person= 'person'; function Person(){ parent::Model(); } function list_all(){ $this->db->order_by('person_id','asc'); return $this->db->get($person); } function count_all(){ return $this->db->count_all($this->person); } function get_paged_list($limit = 0, $offset = 0) { $this->db->limit($limit, $offset); $this->db->select("person.*, company.company_name as company"); $this->db->from('person'); $this->db->join('company','person.company_id = company.company_id','left'); //MY QUESTION:? CAN I JOIN MORE WITH TABLE POSITION? $query = $this->db->get(); return $query->result(); } function get_by_id($id){ $this->db->where('person_id', $id); return $this->db->get($this->person); } function save($person){ $this->db->insert($this->person, $person); return $this->db->insert_id(); } function update($id, $person){ $this->db->where('person_id', $id); $this->db->update($this->person, $person); } function delete($id){ $this->db->where('person_id', $id); $this->db->delete($this->person); } } ?>

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  • Usage examples of binary search

    - by python dude
    I just realized that in my 4+ years of Java programming (mostly desktop apps) I never used the binary search methods in the Arrays class for anything practical. Not even once. Some reasons I can think of: 100% of the time you can get away with linear search, maps or something else that isn't binary search. The incoming data is almost never sorted, and making it sorted requires an extra sorting step. So I wonder if it's just me, or do a lot of people never use binary search? And what are some good, practical usage examples of binary search?

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  • Help me with Php session vs Header redirect?

    - by python
    I have the following pages: *page1.php <?php if (isset($_GET['link'])) { session_start(); $_session['myvariable'] = 'Hello World'; header('Location: http://' . $_SERVER['SERVER_NAME'] . dirname($_SERVER['REQUEST_URI']) . '/page2.php'); exit; } ?> <a href="<?php print $_SERVER['REQUEST_URI'] . '?link=yes';?>">Click Here</a> *page2.php <?php print 'Here is page two, and my session variable: '; session_start(); print $_session['myvariable']; //This line could not output. exit; ?> When I try output $_session['myvariable'] I did not get the result hello world message. I could not find out the solution to fix it .?

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  • Silverlight Cream for May 01, 2010 -- #853

    - by Dave Campbell
    In this Issue: Damian Schenkelman, Rob Eisenberg, Sergey Barskiy, Victor Gaudioso, CorrinaB, Mike Snow, and Adam Kinney. From SilverlightCream.com: Prism’s future: Trying to summarize things Damian Schenkelman collected links to the latest Prism information to provide a reference post, including discussing WP7. MVVM Study - Interlude Rob Eisenberg discusses MVVM - it's beginnings and links out to all the major players old and new. Windows Phone 7 Database Here we go... Sergey Barskiy converted his Silverlight database project to WP7, and it's available on CodePlex... cool! New Silverlight Video Tutorial: How to Save an Image in Your Silverlight Applications Victor Gaudioso has a new video tutorial up... demonstrating saving an image from Silverlight to your hard disk. He also has the source files for download. Enforce Design Guidelines With Styles And Behaviors CorrinaB has a post up discussing attaching behaviors in styles. She has a couple good examples and a sample project to download. Silverlight Tip of the Day #9 – Obtaining Your clients IP Address Mike Snow has Tip number 9 up and he's explaining how to find the client IP address even though it's not natively available from Silverlight or jscript. Expression Blend 4 for Windows Phone in 90 seconds Adam Kinney talks about the release of a new version of the Expression Blend add-in for WP7. He's got links and instructions for removing and upgrading. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Silverlight Cream for May 24, 2010 -- #868

    - by Dave Campbell
    In this Issue: Victor Gaudioso, Weidong Shen, SilverLaw, Alnur Ismail, Damon Payne, and Karl Erickson. Shoutout: Tim Greenfield posted his slides and materials (not the padlock yet) from Portland Code Camp: Rx for Silverlight at Portland CodeCamp András Velvárt posted his material from his User Group talk: 20 Silverlight 4 demos in one zip file From SilverlightCream.com: New Silverilght Video Tutotial: How to Build Your Very Own Tutorial Cam Do you like the video Victor Gaudioso has of himself in his tutorials? well... in this one, he explains how to go about doing just that for yourself! A Sample Silverlight 4 Application Using MEF, MVVM, and WCF RIA Services - Part 1 Weidong Shen has part 1 of a new series up on Code Project about Siverlight, MVVM, MEF, and WCF RIA Services. Silver Spot Light - Silverlight 4 SilverLaw posted a control to the Expression Gallery and I have to agree with his comment "You' ll love to switch it on and off & on and off & on and off ... ;-)" A Distributable (.exe) Silverlight OOB Application Alnur Ismail has a step-by-step post up on building an OOB app deployable in an exe file. You'll need a file from a post by Tim, but there's a link in the post. DataContract based Binary Serialization for Silverlight Damon Payne serves up on a promise to post about a subject he's been discussing: DataContract based Binary Serialization for Silverlight... and he's writing about the process he followed, plus all the code is available. Creating a Custom Out-of-Browser Window in Silverlight 4 Karl Erickson at the Silverlight SDK blog discusses OOB visualization effects... what you can and can't do, and what limitations you're up against. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • What is the best book on Silverlight 4?

    - by mbcrump
    Silverlight/Expression 4 Books! I recently stumbled upon a post asking, “What is the best book on Silverlight 4?” In the age of the internet, it can be hard for anyone searching for a good book to actually find it. I have read a few Silverlight 4/Expression books in 2010 and decided to post the “best of” collection. Instead of reading multiple books, you can cut your list down to whatever category that you fit in. With Silverlight 5 coming soon, now is the time to get up to speed with what Silverlight 4 can offer. Be sure to read the full review at the bottom of each section. For the “Beginner” Silverlight Developer: Both of these books contains very simple applications and will get you started very fast. and Book Review: Microsoft Silverlight 4 Step by Step For the guy/gal that wants to “Master” Expression Blend 4: This is a hands-on kind of book. Victor get you started early on with some sample application and quickly deep dives into Storyboard and other Animations. If you want to learn Blend 4 then this is the place to start. Book Review: Foundation Expression Blend 4 by Victor Gaudioso If you are aiming to learn more about the Business side of Silverlight then check out the following two books: and Finally, For the Silverlight 4 guy/gal that wants to “Master” Silverlight 4, it really boils down to the following two books: and   Book Review: Silverlight 4 Unleashed by Laurent Bugnion Book Review: Silverlight 4 in Action by Pete Brown I can’t describe how much that I’ve actually learned from both of these books. I would also recommend you read these books if you are preparing for your Silverlight 4 Certification. For a complete list of all Silverlight 4 books then check out http://www.silverlight.net/learn/books/ and don’t forget to subscribe to my blog.  Subscribe to my feed CodeProject

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  • Silverlight Cream for May 25, 2010 -- #869

    - by Dave Campbell
    In this Issue: Miroslav Miroslavov, Victor Gaudioso, Phil Middlemiss, Jonathan van de Veen, Lee, and Domagoj Pavlešic. From SilverlightCream.com: Book Folding effect using Pixel Shader On the new CompleteIT site, did you know the page-folding was done using PixelShaders? I hadn't put much thought into it, but that's pretty cool, and Miroslav Miroslavov has a blog post up discussing it, and the code behind it. New Silverlight Video Tutorial: How to create a Slider with a ToolTip that shows the Value of the Slider This is pretty cool... Victor Gaudioso's latest video tutorial shows how to put the slider position in the slider tooltip... code and video tutorial included. Backlighting a ListBox Put this in the cool category as well... Phil Middlemiss worked out a ListBox styling that makes the selected item be 'backlit' ... check out the screenshot on the post... and then grab the code :) Adventures while building a Silverlight Enterprise application part #33 Jonathan van de Veen is discussing changes to his project/team and how that has affected development. Read about what they did right and some of their struggles. RIA Services and Storedprocedures Lee's discussing Stored Procs and RIA Services ... he begins with one that just works, then moves on to demonstrate the kernel of the problem he's attacking and the solution of it. DoubleClick in Silverlight Domagoj Pavlešic got inspiration from one of Mike Snow's Tips of the Day and took off on the double-click idea... project source included. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • ArchBeat Link-o-Rama for November 13, 2012

    - by Bob Rhubart
    This week on the OTN Solution Architect Homepage Make time to check out this week's features on the OTN Solution Architect Homepage, including: SOA Practitioner Guide: Identifying and Discovering Services Setting Up, Configuring, and Using an Oracle WebLogic Server Cluster OTN ArchBeat Podcast: Are You Future Proof (Conclusion) Keynote: New Paradigms for Application Architecture: From Applications to IT Services I this keynote address from the SOA, Cloud, and Service Technology Symposium, Anne Thomas Manes highlights the importance of adapting to the current trend marked by the convergence of mobile, social and cloud, moving away from app-centric design to service-based solutions. New Solaris Cluster! | Jeff Victor "Oracle Solaris Cluster 4.1 offers both High Availability (HA) and also Scalable Services capabilities," explains Jeff Victor. "HA delivers automatic restart of software on the same cluster node and/or automatic failover from a failed node to a working cluster node. Software and support is available for both x86 and SPARC systems." You'll find download links and other resources in Jeff's short post. ADF BC View Accessor To Centralize Business Logic Processing | Andrejus Baranovskis Oracle ACE Director Andrejus Baranovskis illustrates one way to implement a use case that requires a comparison between the current row status and the data returned by another query (no master-detail relationship). Thought for the Day "The danger from computers is not that they will eventually get as smart as men, but that we will meanwhile agree to meet them halfway." — Bernard Avishai Source: SoftwareQuotes.com

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  • broken upgrade from 10.04 to 12.04 on a VPS - recoverable?

    - by HorusKol
    I have a VPS hosted 1500 km away. It originally came with 9.10 - and this morning I decided that I really should get to an LTS release, and figured I'd jump to 12.04. Researching, I discovered that there is no direct path between 9.10 and 12.04, but that I could upgrade via 10.04. After backing up my data, I dove in. The upgrade to 10.04 was successful, and I proceeded to upgrade to 12.04. Things started to go wrong. First, I got an error with GLIBC - I retried and got the same error. That's when I stopped the upgrade. I then tried another round of apt-get update && apt-get upgrade and got a list of "unmet dependencies": apt: Depends: ubuntu-keyring but it is not going to be installed Depends: libc6 (>= 2.15) but 2.11.1-0ubuntu7.11 is to be installed Depends: libstdc++6 (>= 4.6) but 4.4.3-4ubuntu5.1 is to be installed PreDepends: dpkg (>= 1.15.7.2) but 1.15.5.6ubuntu4.6 is to be installed apt-utils: Depends: libapt-pkg-libc6.10-6-4.8 libapt-inst1.4: Depends: libc6 (>= 2.14) but 2.11.1-0ubuntu7.11 is to be installed libapt-pkg4.12: Depends: libc6 (>= 2.15) but 2.11.1-0ubuntu7.11 is to be installed Depends: libstdc++6 (>= 4.6) but 4.4.3-4ubuntu5.1 is to be installed libc6: Depends: libc-bin (= 2.11.1-0ubuntu7.11) but 2.15-0ubuntu10.2 is to be installed libept0: Depends: libapt-pkg-libc6.10-6-4.8 libnih-dbus1: Depends: libnih1 (= 1.0.3-4ubuntu9) but 1.0.1-1 is to be installed I tried to see if I could do something about these - using apt-get -f install. This told me that I would need to upgrade my kernel. I found instructions on how to do this, but when I ran apt-get to install the new linux headers, I got the same dependency errors. I found another answer here where someone else had had an interruption in their upgrade - and tried the solution that worked for them: sudo apt-get -f dist-upgrade This resulted in the error: E: Could not perform immediate configuration on 'python2.7-minimal'.Please see man 5 apt.conf under APT::Immediate-Configure for details. (2) I tried to resolve this by: apt-get install -o APT::Immediate-Configure=false -f apt python-minimal But this simply ended up with this last list of dependency errors: apt: Depends: ubuntu-keyring but it is not going to be installed Depends: libc6 (>= 2.15) but 2.11.1-0ubuntu7.11 is to be installed Depends: libstdc++6 (>= 4.6) but 4.4.3-4ubuntu5.1 is to be installed PreDepends: dpkg (>= 1.15.7.2) but 1.15.5.6ubuntu4.6 is to be installed apt-utils: Depends: libapt-pkg-libc6.10-6-4.8 libapt-inst1.4: Depends: libc6 (>= 2.14) but 2.11.1-0ubuntu7.11 is to be installed libapt-pkg4.12: Depends: libc6 (>= 2.15) but 2.11.1-0ubuntu7.11 is to be installed Depends: libstdc++6 (>= 4.6) but 4.4.3-4ubuntu5.1 is to be installed libc6: Depends: libc-bin (= 2.11.1-0ubuntu7.11) but 2.15-0ubuntu10.2 is to be installed libept0: Depends: libapt-pkg-libc6.10-6-4.8 libnih-dbus1: Depends: libnih1 (= 1.0.3-4ubuntu9) but 1.0.1-1 is to be installed python: Depends: python-minimal (= 2.6.5-0ubuntu1) but 2.7.3-0ubuntu2 is to be installed python-apt: Depends: libapt-pkg-libc6.10-6-4.8 python-minimal: Depends: python2.7-minimal (>= 2.7.3) but it is not going to be installed Breaks: python-support (< 1.0.10ubuntu2) but 1.0.4ubuntu1 is to be installed synaptic: Depends: libapt-pkg-libc6.10-6-4.8 Any ideas on how to dig out of this hole?

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  • Webforms vs. MVC. Once you start using MVC.. Do you ever go back to webforms?

    - by punkouter
    I checked out MVC months ago and didn't really get it.. but recently as I have become a better programmer I think it is making sense.. Here is my theory.. tell me if I got it Right In the 90s for Microsoft Devs we had Classic ASP. This mixed VBscript and HTML on the same page. So you needed to create all the HTML yourself and mix HTML and VBScript. This was not considered Ideal. Then .NET came along and everyone liked it because it was similiar to event driven VB 6 style programming. It created this abstraction of binding data to ASP Servier controls. It made getting Enumerated data easy to get on the screen with one line. Then recently Jquery and SOA concepts are mixed together.. Now people think.. Why create this extra layer of abstraction when I can just directly use .NET as a data provider and use jquery AJAX calls to get the data and create the HTML with it directly .. no need for the Webforms abstraction layer.. Sowe are back to creating HTML directly like we did in 1999. So MVC is all about saying Stop pretending like WEb programming is a VB6 app! Generate HTML directly! Am I missing anything? So I wonder.. for you people out there using MVC... is it the sort of things that once you get used to it you never want to go back to webforms??

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  • USB packets - receive wrong data

    - by regorianer
    i have a little python script which shows me the packets of an enocean device and does some events depending on the packet type. unfortunately it doesn't work because i'm getting wrong packets. Parts of the python script (used pySerial): Blockquote ser = serial.Serial('/dev/ttyUSB1',57600,bytesize = serial.EIGHTBITS,timeout = 1, parity = serial.PARITY_NONE , rtscts = 0) print 'clearing buffer' s = ser.read(10000) print 'start read' while 1: s = ser.read(1) for character in s: sys.stdout.write(" %s" % character.encode('hex')) print 'end' ser.close() output baudrate 57600: e0 e0 00 e0 00 e0 e0 e0 e0 e0 00 e0 e0 00 00 00 00 00 00 00 e0 e0 e0 00 00 00 00 e0 e0 e0 00 00 e0 e0 e0 e0 e0 00 e0 00 e0 e0 e0 e0 e0 00 e0 e0 00 00 00 00 00 00 e0 e0 e0 00 00 00 00 e0 e0 e0 00 00 e0 e0 e0 output baudrate 9600: a5 5a 0b 05 10 00 00 00 00 15 c4 56 20 6f a5 5a 0b 05 00 00 00 00 00 15 c4 56 20 5f linux terminal baudrate 57600: $stty -F /dev/ttyUSB1 57600 $stty < /dev/ttyUSB1 speed 57600 baud; line = 0; eof = ^A; min = 0; time = 0; -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke $while (true) do cat -A /dev/ttyUSB1 ; done myfile $hexdump -C myfile 00000000 4d 2d 60 4d 2d 60 5e 40 4d 2d 60 5e 40 4d 2d 60 |M-M-^@M-^@M-| 00000010 4d 2d 60 4d 2d 60 4d 2d 60 4d 2d 60 5e 40 4d 2d |M-M-M-M-^@M-| 00000020 60 4d 2d 60 5e 40 5e 40 5e 40 5e 40 5e 40 5e 40 |M-^@^@^@^@^@^@| 00000030 5e 40 4d 2d 60 4d 2d 60 4d 2d 60 5e 40 5e 40 5e |^@M-M-M-`^@^@^| 00000040 40 5e 40 4d 2d 60 4d 2d 60 4d 2d 60 |@^@M-M-M-`| 0000004c linux terminal baudrate 9600: $hexdump -C myfile2 00000000 5e 40 5e 55 4d 2d 44 56 30 4d 2d 3f 5e 40 5e 40 |^@^UM-DV0M-?^@^@| 00000010 5e 55 4d 2d 44 56 20 5f |^UM-DV _| 00000018 the specification says: 0x55 sync byte 1st 0xNNNN data length bytes (2 bytes) 0x07 opt length byte 0x01 type byte CRC, data, opt data und nochmal CRC but I'm not getting this packet structure. The output of the python script differs from the one I get via the terminal. I also wrote the python part with C, but the output is the same as with python As the USB receiver a BSC-BoR USB Receiver/Sender is used The EnOcean device is a simple button

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