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• Pick Return Values of Stored Procedure

  - by Juergen

  Hi, I have a stored procedure that returns a result with 250!!! columns. But I only need 3 out of the 250. I want to call the SP and put only the 3 column values in a temp table. I don't want to define a temp table with 250 columns! This is how I would like to do it, but this doesn't work of course: create #myTempTable (id int, value1 int, value2 int) insert into #myTempTable exec myBigFatStoredProc Can it be done anyhow? Bye Juergen

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• asp.net datasource problem

  - by harold-sota

  I'm insert a dropdwon list in datagrid on row editing. wen i run the project the datasource is not rekognized <asp:TemplateField HeaderText="Lookup 1"> <EditItemTemplate> <asp:DropDownList ID="Loocup1DropDownList" Width="100%" runat="server" DataSource ="<%GetValueForDropDownCombinationContent()%>" DataValueField="LOOKUP_ID" DataTextField="lookup_name" > </asp:DropDownList> </EditItemTemplate> <ItemTemplate> <asp:Label ID="LOOKUP1_NAME" runat="server" Text='<%# Bind("LOOKUP1_NAME") %>'></asp:Label> </ItemTemplate> This is the vb.net function Protected Function GetValueForDropDownCombinationContent() As IDataSource Dim dsProductLookups As New DataSet dsProductLookups = DocumentManager.Data.DataRepository.Provider.ExecuteDataSet("sp_GetCombinationsLookups", productCombo.SelectedValue) Return dsProductLookups End Function any ideas???

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• Creating a triple store query using SQL - how to find all triples that have a common predicate and o

  - by Ankur

  I have a database that acts like a triple store, except that it is just a simple MySQL database. I want to select all triples that have a common predicate and object. Info about RDF and triples I can't seem to work out the SQL. If I had just a single predicate and object to match I would do: select TRIPLE from TRIPLES where PREDICATE="predicateName" and OBJECT="objectName" But if I have a list (HashMap) of many pairs of (predicateName,objectName) I am not sure what I need to do. Please let me know if I need to provide more info, I am not sure that I have made this quite clear, but I am wary of providing too much info and confusing the issue.

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• T-SQL error object exists when separated in if/else blocks

  - by Jeff O

  I get the error: Msg 2714, Level 16, State 1, Line 16 There is already an object named '#mytemptable' in the database. There are ways around it, but wonder why this happens. Seems like SQL Server is verifying both blocks of the if/else statement? declare @choice int select @choice = 1 if @choice = 1 begin select 'MyValue = 1' AS Pick into #my_temp_table end else begin select 'MyValue <> 1' AS Pick into #my_temp_table end select * from #temptable drop table #temptable If the tables have different names, it works. Or if I create the temp table and use Insert Into... statements that works as well.

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• How do I seperate Punctuations in a sentence with a space between each phrase and punctuation in C++

  - by Yadollah

  I want to write a program in c++ that get a sentence and insert a space between each word and punctuation in it! in perl this is done with this expression: sed -e "s/,\([^0-9]\)/ , \1/g" -e "s/\.\([^0-9]\)/ . \1/g" -e 's/\.[ ]*$/ ./g' -e "s/\'/ \' /g" -e 's/?/ ?/g' -e 's/\`\`/ `` /g' -e "s/\' \'/''/g" -e 's/(/ ( /g' -e 's/)/ ) /g' -e 's/ \. \([^$]\)/. \1/g' -e "s/\' s/\'s/g" -e "s/\"\([^\"]*\)\"/\" \1 \"/g" $1 | sed -e "s/\"\([^\"]*\)\"/\`\`\1''/g" But I don't khow how i should do this in c++! for example: should convert a "The question now: Can he act more like hard-charging Teddy Roosevelt." must be converted to "The question now : Can he act more like hard-charging Teddy Roosevelt ." So a punctuation such as '-' or for example a '.' in "No." should not spacing in a sentence, but other punctuation that don't rely on a word or a phrase should be spaced.

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• Extending mysqli and using multiple classes

  - by Mikk

  Hi, I'm new to PHP oop stuff. I'm trying to create class database and call other classes from it. Am I doing it the right way? class database: class database extends mysqli { private $classes = array(); public function __construct() { parent::__construct('localhost', 'root', 'password', 'database'); if (mysqli_connect_error()) { $this->error(mysqli_connect_errno(), mysqli_connect_error()); } } public function __call($class, $args) { if (!isset($this->classes[$class])) { $class = 'db_'.$class; $this->classes[$class] = new $class(); } return $this->classes[$class]; } private function error($eNo, $eMsg) { die ('MySQL error: ('.$eNo.': '.$eMsg); } } class db_users: class db_users extends database { public function test() { echo 'foo'; } } and how I'm using it $db = new database(); $db->users()->test(); Is it the right way or should it be done another way? Thank you.

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• Help porting a bit of Prototype JavaScript to jQuery

  - by ewall

  I have already implemented some AJAX pagination in my Rails app by using the example code for the will_paginate plugin--which is apparently using Prototype. But if I wanted to switch to using jQuery for future additions, I really don't want to have the Prototype stuff sitting around too (yes, I know it's possible). I haven't written a lick of JavaScript in years, let alone looked into Prototype and jQuery... so I could use some help converting this bit into jQuery-compatible syntax: document.observe("dom:loaded", function() { // the element in which we will observe all clicks and capture // ones originating from pagination links var container = $(document.body) if (container) { var img = new Image img.src = '/images/spinner.gif' function createSpinner() { return new Element('img', { src: img.src, 'class': 'spinner' }) } container.observe('click', function(e) { var el = e.element() if (el.match('.pagination a')) { el.up('.pagination').insert(createSpinner()) new Ajax.Request(el.href, { method: 'get' }) e.stop() } }) } }) Thanks in advance!

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• Retrieving datatypes from underlying database

  - by H4mm3rHead

  Hi, Im making an application that displays information about an underlying database. The database can be anything, but is typically either Oracle, MSSQL or MySQL. I am trying to extract the datatype but cannot seem to get this right. I have a DbConnection because i dont know whether I need a OleDbConnection or an OdbcConnection. On this connection I make a GetSchema("Columns", "mytablename") query and gets the result back. It seems though that there are some inconsistencies with my datatypes or the query returns different datatypes for the different databases. For instance, in my MSSQL database I query and get an integer back (which seems to be the OleDbType) which I map to a datatype. My varchars is now of type char - no length - and this confuses me a bit. I guess my main question is something like: Is there any way of making a uniform way of extracting datatypes across providers and having an "accurate" representation of the datatype?

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• Enable Datepicker only when first field has a value

  - by Syed Abdul Rahman

  Right now, the End Date selection is disabled. I want to only enable this when a Start Date is selected. if( $('#datepicker1').val().length === 0) { $('#datepicker2').datepicker("disable"); } else { $('#datepicker2').datepicker("enable"); } This clearly does not work. If I insert value = 'random date' into my first input field, it works fine. I'm not too sure on how do this. Clearly not as easy as I had hoped. My other problem, or hope, is to disable the dates including and before the first selection. You know, pick Start Date, and every date before and said date for the next picker would be disabled. But that is a whole other problem.

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• Caching asp.net viewdata

  - by Tomh

  Hey guys, I'm currently thinking about caching most of my viewdata excpt user specific data after a user logs on. I thought the simplest way was caching the ViewData object itself and adding the user specific data after it was loaded. Are there any downsides of this approach? Are there better ways? string cacheKey = "Nieuws/show/" + id; if (HttpRuntime.Cache[cacheKey] != null) { ViewData = HttpRuntime.Cache[cacheKey] as ViewDataDictionary; } else { // add stuff to view data HttpRuntime.Cache.Insert(cacheKey, ViewData, null, DateTime.Now.AddSeconds(180), Cache.NoSlidingExpiration, CacheItemPriority.NotRemovable, null); }

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• Concatenating databases with Squeryl

  - by Pengin

  I'm trying to use Squeryl to take the contents of a table from one database, and append it to the equivalent table in another database. The primary key will have to be reassigned in the process, but I'm getting the error NULL not allowed for column "SIMID". Why is this? object Concatenator { def main(args: Array[String]) { Class.forName("org.h2.Driver"); val seshA = Session.create( java.sql.DriverManager.getConnection("jdbc:h2:file:data/resultsA", "sa", "password"), new H2Adapter ) val seshB = Session.create( java.sql.DriverManager.getConnection("jdbc:h2:file:data/resultsB", "sa", "password"), new H2Adapter ) using(seshA){ import Library._ from(sims){s => select(s)}.foreach{item => using(seshB){ sims.insert(item); } } } } case class Simulation( @Column("SIMID") var id: Long, val date: Date ) extends KeyedEntity[Long] object Library extends Schema { val sims = table[Simulation] on(sims)(s => declare( s.id is(unique, indexed, autoIncremented) )) } }

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• Is there a module that implements an efficient array type in Erlang?

  - by dsmith

  I have been looking for an array type with the following characteristics in Erlang. append(vector(), term()) O(1) nth(Idx, vector()) O(1) set(Idx, vector(), term()) O(1) insert(Idx, vector(), term()) O(N) remove(Idx, vector()) O(N) I normally use a tuple for this purpose, but the performance characteristics are not what I would want for large N. My testing shows the following performance characteristics... erlang:append_element/2 O(N). erlang:setelement/3 O(N). I have started on a module based on the clojure.lang.PersistentVector implementation, but if it's already been done I won't reinvent the wheel.

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• Dynamically changing background color of specific text without changing other attributes

  - by gsingh2011

  I've written a chrome extension to find text on a page based on a regex query. When text is matched, I wrap the matched text in a <span> tag that has the class highlight where highlight only changes the background color to yellow. The issue is that sometimes there are already styles applied to <span> tags in a webpage. For example, the webpage might have this defined: span { font-size: 200%; } So when I insert my <span> tag in another <span> tag, the font-size is actually 400%. Is there an easy way for my code to just change certain properties of the text, like the background color, without applying the webpage's styles twice?

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• Twitter's Bootstrap 2.x popover callback can't focus on element

  - by mozgras

  I've modified bootstrap's popover function to include a callback which works great. But in the callback I cannot programmatically focus on the first form field. Strange, because I can manipulate other elements in the callback function as well as focus on the element at other points. Here's the code to add a callback which I got from another SO question (http://stackoverflow.com/a/14727204/1596547): var tmp = $.fn.popover.Constructor.prototype.show; $.fn.popover.Constructor.prototype.show = function () { tmp.call(this); if (this.options.callback) { this.options.callback(); } } Here's the popover code: $('#a-editor-btn').popover({ html: true, placement: 'bottom', callback: function(){ $('#a-form-point').focus(); //nothing happens console.log('hello'); // works . . }, content: $('#a-form').html() }).parent().delegate('button#insert-point-btn', 'click', function() { insertPoint(); }).delegate('.a-form','keypress', function(e) { if ( e.which == 13 ) { insertPoint(); } });

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• database vs flat file, which is a faster structure for regex matching with many simultaneous request

  - by Jamex

  Hi, which structure returns faster result and/or less taxing on the host server, flat file or database (mysql)? Assume many users (100 users) are simultaneously query the file/db. Searches involve pattern matching using regex against a static file/db. File has 50,000 unique lines (same data type). There could be many matches. There is no writing to the file/db, just read. Is it possible to have a duplicate the file/db and write a logic switch to use the backup file/db if the main file is in use? Which language is best for the type of structure? Perl for flat and PHP for db? TIA

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• database vs flat file, which is a faster structure for "regex" matching with many simultaneous reque

  - by Jamex

  Hi, which structure returns faster result and/or less taxing on the host server, flat file or database (mysql)? Assume many users (100 users) are simultaneously query the file/db. Searches involve pattern matching against a static file/db. File has 50,000 unique lines (same data type). There could be many matches. There is no writing to the file/db, just read. Is it possible to have a duplicate the file/db and write a logic switch to use the backup file/db if the main file is in use? Which language is best for the type of structure? Perl for flat and PHP for db? Addition info: If I want to find all the cities have the pattern "cis" in their names. Which is better/faster, using regex or string functions? Please recommend a strategy TIA

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• Catching constraint violations in JPA 2.0.

  - by Dennetik

  Consider the following entity class, used with, for example, EclipseLink 2.0.2 - where the link attribute is not the primary key, but unique nontheless. @Entity public class Profile { @Id private Long id; @Column(unique = true) private String link; // Some more attributes and getter and setter methods } When I insert records with a duplicate value for the link attribute, EclipseLink does not throw a EntityExistsException, but throws a DatabaseException, with the message explaining that the unique constraint was violated. This doesn't seem very usefull, as there would not be a simple, database independent, way to catch this exception. What would be the advised way to deal with this? A few things that I have considered are: Checking the error code on the DatabaseException - I fear that this error code, though, is the native error code for the database; Checking the existence of a Profile with the specific value for link beforehand - this obviously would result in an enormous amount of superfluous queries.

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• I would like to make a field part of a many to many relationship

  - by jona

  I have the following table called stores id store zip 1 Market 1 01569 2 Market 2 01551 3 Market 3 10468 4 Market 4 10435 Zip code table INSERT INTO `zip_codes` (`restaurants_locations_id`, `zip`, `state`, `latitude`, `longitude`, `city`, `full_state`) VALUES (1, '06001', 'CT', ' 41.789698', ' -72.86431', 'Avon', 'Connecticut'), (2, '06002', 'CT', ' 41.832798', ' -72.72642', 'Bloomfield', 'Connecticut'), (3, '06010', 'CT', ' 41.682249', ' -72.93365', 'Bristol', 'Connecticut'), (4, '06013', 'CT', ' 41.758415', ' -72.94642', 'Burlington', 'Connecticut'), (5, '06016', 'CT', ' 41.909097', ' -72.54393', 'Windsorville', 'Connecticut'), (6, '06018', 'CT', ' 42.023510', ' -73.31103', 'Canaan', 'Connecticut'), (7, '06019', 'CT', ' 41.834247', ' -72.89174', 'Canton', 'Connecticut'), etc.... what I want is to create a table which will connect the zip field in the stores tables where one store will be found in several zicodes... How would that table would look like? Thanks

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• Memory leak while using emoticons on CRichEditCtrl

  - by Jorg B Jorge

  I'm developing a text editor class (for a chat application) based on CRichEditCtrl (MFC) with emoticon support. After i load the emoticon's bitmap, I use the function OleCreateStaticFromData to insert it into CRichEditCtrl. After that i just delete the bitmap object allocated by myself. I can verify (using a GDIView utility) that all resources i allocate have been properly released. This works perfectly: the bitmap (emoticon) is drawn on the CRichEditCtrl window and is handled just like a character. My problem is that I don't know how to deallocate the memory (internal) allocated by OleCreateStaticFromData to manage the bitmap (emoticon). The memory allocated for any emoticon used is never released, even if i delete the CRichEditCtrl object. I'd like to know how to fix that issue. Is that a MFC's issue or i'm doing something wrong ? Thx.

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• How do I send a file as an email attachment using Linux command line?

  - by Kit Roed

  I've created a script that runs every night on my Linux server that uses mysqldump to back up each of my MySQL databases to .sql files and packages them together as a compressed .tar file. The next step I want to accomplish is to send that tar file through email to a remote email server for safekeeping. I've been able to send the raw script in the body an email by piping the backup text file to mailx like so: $ cat mysqldbbackup.sql | mailx [email protected] cat echoes the backup file's text which is piped into the mailx program with the recipient's email address passed as an argument. While this accomplishes what I need, I think it could be one step better, Is there any way, using shell scripts or otherwise, to send the compressed .tar file to an outgoing email message as an attachment? This would beat having to deal with very long email messages which contain header data and often have word-wrapping issues etc.

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• Spotlight search with PHP

  - by htf

  Hi. I want to add a spotlight search functionality - search results being displayed with rich contents like thumbnail etc in a drop down menu changing on each keyup event - just like the apple.com search - to a site, having data in MySQL InnoDB tables. The data is spread into separate tables for categories, help pages, blog pages and so on. The search script must take into account just a subset of columns. Since it seems to be a popular demand, I guess there are some PHP search engine projects (preferably open-source and with memcached support), which could be integrated into the existing system on the basis of regular exports of relevant data from the working db/tables. Are there any solutions out there? Which one would you recommend? Or maybe it would be better to implement it the other way around? Thanks

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• Cursors vs Procedures in SQL

  - by CogitoErgoSum

  So, I just learned about CURSORS but still don't exactly grasp them. What is the difference between a cursor and procedure or even a function? So far from the various examples (DECLARE CURSOR ... SELECT ... FROM ...) It seems at most its a variable to hold a query. Is the data real time, or a snapshot of when the cursor was declared? i.e. I have a table with one row and one col with a value of 2. I do DECLARE CURSOR ... SELECT * FROM table1 I then insert a new row with a value of 3. When I run the cursor, would I Just get the one row from before the cursor was declared, or both rows? Thanks

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• Advice on simple efficient way to store web form data when no db/auth required

  - by ted776

  Hi, I have a situation where I need to provide an efficient way to process and store comments submitted via a web form. I would normally use PHP and either MySQL or XML to store the data, but this is slightly different in that this web form will only be temporarily available in a closed LAN environment, and all i need to do is process the form data and store it a format which can be accessed by another application on the LAN (Adobe Director). Each request made by the Director app should pop the stack of data. I'm wondering how best to store the data for this type of situation as it's not something I would normally do. I'm thinking possibly storing the data in an XML file, but any advice would be great!

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• How do browsers/PHP handle characters outside the set characterset?

  - by Maarten

  I'm looking into how characters are handled that are outside of the set characterset for a page. In this case the page is set to iso-8859-1, and the previous programmer decided to escape input using htmlentities($string,ENT_COMPAT). This is then stored into Latin1 tables in Mysql. As the table is set to the same character set as the page, I am wondering if that htmlentities step is needed. I did some experiments on http://floris.workingweb.nl/experiments/characters.php and it seems that for stuff inside Latin1 some characters are escaped, but for example with a Czech name they are not. Is this because those characters are outside of Latin1? If so, then the htmlentities can be removed, as it doesn't help for stuff outside of Latin1 anyway, and for within Latin1 it is not needed as far as I can see now...

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• performance of parameterized queries for different db's

  - by tuinstoel

  A lot of people know that it is important to use parameterized queries to prevent sql injection attacks. Parameterized queries are also much faster in sqlite and oracle when doing online transaction processing because the query optimizer doesn't have to reparse every parameterized sql statement before executing. I've seen sqlite becoming 3 times faster when you use parameterized queries, oracle can become 10 times faster when you use parameterized queries in some extreme cases with a lot of concurrency. How about other db's like mysql, ms sql, db2 and postgresql? Is there an equal difference in performance between parameterized queries and literal queries?

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