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  • Best approach to update a control after an Ajax request?

    - by Cuga
    I have a webpage that fires off an Ajax request which stores some data to a database and I want to update the webpage so that the user can see their changes have been submitted. There are at least 3 ways I can think of accomplishing this: Immediately update the webpage with plain JavaScript by grabbing the contents of the user's inputted text and immediately inserting it where it belongs. Have the ajax call return the stored text as the response, grab the response, and then insert this text where it belongs on the page using JavaScript Have the ajax call return a flag (say, true for successful db write, false otherwise), and if the flag is true, use JavaScript to grab the user's contents from the input control and insert it where it belongs elsewhere on the page Or another method not mentioned...? I don't mean this to be subjective, I just don't know which would be the best method to apply. My instinct tells me to go with the third item (return a flag, then update the field). Is this the best way? Thanks

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  • sql data source re binding question

    - by Keith
    In my gridview after an insert operation has been done I am filtering the sqldatasource by ID. I am getting an error that the item drop down box selected value is not in the list. To test my theory I created a new sql data source with only the select statement and after the insert operation I am binding it to my grid view and filtering by Id and I get my result. The question Having a second data source is not the solution so is it possible that there is some way to use sqldatasource1? what I tried is sqldatasource.databind() and gridview.databind() on the inserted and inserting metheds in many test cases but still that doesnt work. I dont have any filters applied on the original data source?

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  • How to force SQL Server 2008 to not change AUTOINC_NEXT value when IDENTITY_INSERT is ON ?

    - by evilek
    Hello, I got question about IDENTITY_INSERT. When you change it to ON, SQL Server automatically changes AUTOINC_NEXT value to the last inserted value as identity. So if you got only one row with ID = 1 and insert row with ID = 100 while IDENTITY_INSERT is ON then next inserting row will have ID = 101. I'd like it to be 2 without need to reseed. Such behaviour already exists in SQL Server Compact 3.5. Is it possible to force SQL Server 2008 to not change AUTOINC_NEXT value while doing insert with IDENTITY_INSERT = ON ?

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  • How do I ensure data consistency in this concurrent situation?

    - by MalcomTucker
    The problem is this: I have multiple competing threads (100+) that need to access one database table Each thread will pass a String name - where that name exists in the table, the database should return the id for the row, where the name doesn't already exist, the name should be inserted and the id returned. There can only ever be one instance of name in the database - ie. name must be unique How do I ensure that thread one doesn't insert name1 at the same time as thread two also tries to insert name1? In other words, how do I guarantee the uniqueness of name in a concurrent environment? This also needs to be as efficient as possible - this has the potential to be a serious bottleneck. I am using MySQL and Java. Thanks

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  • C# Replace two specific commas in a string with many commas

    - by Hal
    I am trying to change the date format in each line from commas to hyphens. The index of the comma separating the month and day day and year varies. lines_in_List[i] = lines_in_List[i].Insert(0, cnt + ","); // Insert Draw # in 1st column string one_line = lines_in_List[i]; // 0,5,1,2012,1,10,19,16,6,36,,, // 1,11,5,2012,49,35,23,37,38,28,,, // 2,12,10,2012,8,52,53,54,47,15,,, // ^-^--^ replace the ',' with a '-'. StringBuilder changed = new StringBuilder(one_line); changed[3] = '-'; changed[5] = '-'; changed[3] = '-'; lines_in_List[i] = changed.ToString(); }

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  • SQL tables using VARCHAR with UTF8 (with respect to multi byte character length)

    - by Elius
    Like in Oracle VARCHAR( 60 CHAR ) I would like to specify a varchar field with variable length depending on the inserted characters. for example: create table X (text varchar(3)) insert into X (text) VALUES ('äöü') Should be possible (with UTF8 as the default charset of the database). On DB2 I got this Error: DB2 SQL Error: SQLCODE=-302, SQLSTATE=22001 (Character data, right truncation occurred; for example, an update or insert value is a string that is too long for the column, or a datetime value cannot be assigned to a host variable, because it is too small.) I'm looking for solutions for DB2, MsSql, MySql, Hypersonic.

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  • What is problem with below class

    - by user258367
    class LinkedList { private: int data; LinkedList *ptr; public: LinkedList(int i_data) { data = i_data; ptr = 0; { ~LinkedList() { delete ptr ; } void insert(LinkedList *node) { while(this->next != 0) this = this->next; this->next = node; } I will be creating a head node like head = new LinkedList(4) and then will be calling like head->insert(new LinkedList(5)) and subsequently . Can you please tell me does above class represent a linkedlist . i think yes it has node which contain address of next node . Please correct me if i am wrong

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  • How to improve the speed of a loop containing a sqlalchemy query statement as conditional

    - by LtPinback
    This loop checks if a record is in the sqlite database and builds a list of dictionaries for those records that are missing and then executes a multiple insert statement with the list. This works but it is very slow (at least i think it is slow) as it takes 5 minutes to loop over 3500 queries. I am a complete newbie in python, sqlite and sqlalchemy so I wonder if there is a faster way of doing this. list_dict = [] session = Session() for data in data_list: if session.query(Class_object).filter(Class_object.column_name_01 == data[2]).filter(Class_object.column_name_00 == an_id).count() == 0: list_dict.append({'column_name_00':a_id, 'column_name_01':data[2]}) conn = engine.connect() conn.execute(prices.insert(),list_dict) conn.close() session.close() edit: I moved session = Session() outside the loop. Did not make a difference.

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  • How to: Avoid Inserting Related Entities?

    - by niaher
    I have this schema: I want to insert an Order with OrderItems into database, so I wrote this method: public void SaveOrder(Order order) { using (var repository = new StoreEntities()) { // Add order. repository.Orders.AddObject(order); // Add order items. foreach (OrderItem orderItem in order.OrderItems) { repository.OrderItems.AddObject(orderItem); } repository.SaveChanges(); } } Everything is inserted just fine, except that new Product records are inserted too, which is not what I want. What I want is to insert Order and its OrderItems, without going any further down the object graph. How can that be achieved? Any help is really appreciated, thank you.

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  • Is there a way to create my own "push pins" for a image without using Google Maps API?

    - by Charlie
    I am interested in working with friends via the internet on a fantasy world map. One of the things I want to do is host an image of the map online and allow us to insert push pins into the image that would then be associated with infoboxes. I don't want to resort to using the Google Map APIs mainly because this is something I want to just share among friends and not publicly. Terms of usage for the APIs state we would need to make the implementation available for everyone. This seems simple enough yet I've no idea how to do this. I looked into image maps, but that requires constant updates to the html markup itself. I just want to insert/delete/edit pushpins and infoboxes on the image and through our site itself. Can someone help me get started?

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  • SQL Query takes about 10 - 20 minutes

    - by masfenix
    I have a select from (nothing to complex) Select * from VIEW This view has about 6000 records and about 40 columns. It comes from a Lotus Notes SQL database. So my ODBC drive is the LotusNotesSQL driver. The query takes about 30 seconds to execute. The company I worked for used EXCEL to run the query and write everything to the worksheet. Since I am assuming it writes everything cell by cell, it used to take up to 30 - 40 minutes to complete. I then used MS access. I made a replica local table on Access to store the data. My first try was INSERT INTO COLUMNS OF LOCAL TABLE FROM (SELECT * FROM VIEW) note that this is pseudocode. This ran successfully, but again took up to 20 - 30 minutes. Then I used VBA to loop through the data and insert it in manually (using an INSERT statement) for each seperate record. This took about 10 - 15 minutes. This has been my best case yet. What i need to do after: After i have the data, I need to filter through it by department. The thing is if I put a where clause in the SQL query (the time jumps from 30 seconds to execute the query, to about 10 minutes + the time to write to local table/excel). I dont know why. MAYBE because the columns are all text columns? If we change some of the columns to integer, would that make it faster in terms of the where clause? I am looking for suggestions on how to approach this. My boss has said we could employ some Java based solution. Will this help? I am not a java person but a c#, and maybe I'll convince them to use c# as well, but i am mainly looking for suggestions on how to cut down the time. I've already cut it down from 40 minutes to 10 minutes, but the want it under 2 minutes. Just to recap: Query takes about 30 seconds to exceute Query takes about 15 - 40 minutes to be used locally in excel/acess Need it under 2 minutes Could use java based solution You may suggest other solutions instead of java.

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  • Are there any Visual Studio add-ins for true 'smart tabs'?

    - by Eye of Hell
    Hello. 'Smart Tabs' concept allows to automatically insert tab character for block indentation and space characters for in-block formatting. It's described here. Unfortunately, Visual Studio's 'smart tabs' option in text editor settings just indents text on enter press. Same name, completely different and near useless thing :). So, maybe someone knows of a visual studio addin that can change how 'tab' key work so it will insert tab characters and space characters according to rules mentioned above? Any hints are welcome. Update: I need it for C++. According to comments, ReSharper can do something like this, but only for Basic and C#.

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  • Encryption By Certificate

    - by user1817240
    I am encrypting customer name in database at database level. While saving in database only first letter of customer name is saved and hence while decrypting only first letter is retrieved. The following code shows the test sp. ALTER PROCEDURE [dbo].[spc_test_insert] ( @sFIRST_NAME typ_encryptedtext, ) AS BEGIN DECLARE @sSENCRYPTION_KEY char(15) DECLARE @sCERTIFICATE char(22) SET @sSENCRYPTION_KEY='SymmetricKey1' SET @sCERTIFICATE='CustomerCertificate' OPEN SYMMETRIC KEY SymmetricKey1 DECRYPTION BY CERTIFICATE CustomerCertificate; INSERT INTO test_table ( FIRST_NAME, ) Values ( -- Add the Params to be Added... EncryptByKey(Key_GUID(@sSENCRYPTION_KEY),@sFIRST_NAME), ) CLOSE SYMMETRIC KEY SymmetricKey1 END encryption decryption working fine in normal insert but its not working in stored procedure.

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  • Perl array and hash manipulation using map

    - by somebody
    I have the following test code use Data::Dumper; my $hash = { foo => 'bar', os => 'linux' }; my @keys = qw (foo os); my $extra = 'test'; my @final_array = (map {$hash->{$_}} @keys,$extra); print Dumper \@final_array; The output is $VAR1 = [ 'bar', 'linux', undef ]; Shouldn't the elements be "bar, linux, test"? Why is the last element undefined and how do I insert an element into @final_array? I know I can use the push function but is there a way to insert it on the same line as using the map command? Basically the manipulated array is meant to be used in an SQL command in the actual script and I want to avoid using extra variables before that and instead do something like: $sql->execute(map {$hash->{$_}} @keys,$extra);

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  • Problem with joining to an empty table

    - by Imran Omar Bukhsh
    I use the following query: select * from A LEFT JOIN B on ( A.t_id != B.t_id) to get all the records in A that are not in B. The results are fine except when table B is completely empty, but then I do not get any records, even from table A. Later It wont work yet! CREATE TABLE IF NOT EXISTS T1 ( id int(11) unsigned NOT NULL AUTO_INCREMENT, title varchar(50) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, t_id int(11) NOT NULL, PRIMARY KEY (id) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ; -- -- Dumping data for table T1 INSERT INTO T1 (id, title, t_id) VALUES (1, 'apple', 1), (2, 'orange', 2); -- -- Table structure for table T2 CREATE TABLE IF NOT EXISTS T2 ( id int(11) NOT NULL AUTO_INCREMENT, title varchar(50) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, t_id int(11) NOT NULL, PRIMARY KEY (id) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ; -- -- Dumping data for table T2 INSERT INTO T2 (id, title, t_id) VALUES (1, 'dad', 2); Now I want to get all records in T1 that do not have a corresponding records in T2 I try SELECT * FROM T1 LEFT OUTER JOIN T2 ON T1.t_id != T2.t_id and it won't work

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  • php Cannot modify header information

    - by mohan286
    Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\program\products\addproduct.php:48) in C:\xampp\htdocs\program\products\addproduct.php on line 77 $s=$_REQUEST; $s=$s[subcategory]; $n=$_POST["productname"]; $p=$_POST["productprice"]; $d=$_POST["productdes"]; $i=$_POST["productimage"]; $sql="INSERT INTO products (product_name,subcat_id ,price,description,product_image) VALUES ('$n','$s','$p','$d','$i')"; //"INSERT INTO freshers_details "."VALUES "."('$name','$mobile','$qualif','$addr','$gender','$mailid')"; if(mysql_query($sql,$con)) { header('Location: http://localhost/program/products/products_listing.php'); } else { die('Error: ' . mysql_error()); } mysql_close($con); }

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  • String update in SQL Server

    - by Thiyaneshwaran S
    Currently I have varchar field. The delimiter is "$P$P$". The delimiter will appear at least once and at most twice in the varchar data. Eg. Sample Heading$P$P$Sample description$P$P$Sample conclusion Sample Heading$P$P$Sample Description If the delimiter appears twice, I need to insert a text before the second occurance of the delimiter. Eg: Sample Heading$P$P$Sample DescriptionINSERT TEXT HERE$P$P$Sample Conclusion If the delimiter occurs only once, then I need to insert a text at the end of the field. Eg: Sample Heading$P$P$Sample DescriptionAPPEND TEXT HERE How this can be done in SQL query?

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  • Passing NULL values into mysql Stored procedure

    - by McNabbToSkins
    I am trying to pass a few NULL values to a stroed procedure but PHP always retains the varaibles to be empty strings '' and not NULL. My DB insert function looks like this. (I am using a Framework and ADODB so if it looks weird thats why). function insert_emp($f_name, $last_name, $dob) { if(!isset($dob)){ $dob = NULL; } $this->DB->setConnection("CALL insert_emp('$f_name', '$l_name', '$dob')"); } I have ensured that $dob is being passed an empty string ''. But for some reason when it calls the stored proc it is not changed to NULL. dob is a datetime field and mysql complains that you can not enter an empty string as a DATETIME. If I hard code the insert such as this $this->DB->setConnection("CALL insert_emp('Test1', 'Test2', 'NULL')"); it will work. Thanks for the help.

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  • Cascading items in a collection of a component

    - by mattcole
    I have a component which contains a collection. I can't seem to get NHibernate to persist items in the collection if I have the collection marked as Inverse. They will persist if I don't have Inverse on the collection, but I get an insert and then an update statement. My mapping is : m => m.Component(x => x.Configuration, c => { c.HasMany(x => x.ObjectiveTitleTemplates) .Access.ReadOnlyPropertyThroughCamelCaseField(Prefix.Underscore) .AsSet() //.Inverse() .KeyColumns.Add("ObjectiveProcessInstanceId") .Cascade.AllDeleteOrphan(); }); Is there a way to get it working marking the collection as Inverse and therefore avoiding the extra insert? Thanks!

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  • Member Function Pointer not quite right

    - by BlackDuck
    I have a SpecialisedRedBlackTree class that is templated. My Month class is not. In my Month class I have a private member which is an instance of SpecialisedRedBlackTree: SpecialisedRedBlackTree<Day> m_windSpeedTree; As you can see it will take the Day class/object (please correct me on any terms I get wrong). In my Month class, I have a method passing a method function pointer to this method: bool Month::CompareWindSpeed(Day a, Day b) { return ( a.GetData(WIND_SPEED_CODE) < b.GetData(WIND_SPEED_CODE)? true : false); } bool (Month::*myFuncPtr)(Day, Day); myFuncPtr = &Month::CompareWindSpeed; m_windSpeedTree.Insert(dayReading, myFuncPtr); But because I am passing a bool (Day, Day) pointer to a templated class expecting bool (T, T) T being part of this .... template Error 1 error C2664: 'SpecialisedRedBlackTree<T>::Insert' : cannot convert parameter 2 from 'bool (__thiscall Month::* )(Day,Day)' to 'bool (__cdecl *)(T,T)' Any advice?

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  • How to update mutual entries in DB?

    - by Sthita
    I am not able to perform mutual update to my Database. My Requirement is like this : Insert IDS UPDate DB Entries ID ConnectedTo ID connectedTo connectedVia 2 1 --- No Entry ----- 2 3 -- No Entry ----- When ID 1 Comes in to picture (Enties happened to Table) 1 4 1 3 2 1 5 2 4 1 1 2 2 5 1 When ID 3 Comes into picture (Enties happened to Table) 3 4 3 5 1 3 1 ---- 3 2 ---- Similarly when ID 4 Comes in to picture 4 9 4 2 3 4 10 4 5 1 4 3 4 2 1 4 1 1 9 4 1 10 4 Its basically Updating the mutual connections.No Duplicate entries should happen. Like for example 2 3 and 3 2 are mutually connected and 1 is associated with them so there is no need to insert (3 2 via 1). I think this is my requirement. Anything possible combinations i have missed please let me know. i will Update. Please help me writing the logic or any example using jdbc and java.

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  • PHP timeslot booking*

    - by boyee007
    regarding of this question.. PHP Booking timeslot I tried 'GROUP BY' id_timeslot still didnt work, as its only showing the booked timeslot not available i tried that solution, but give me an error and not quite understand how to use 'coelence' table timeslot (id_timeslot integer); table doctor (id_doctor integer); table bookslot (id_bookslot, id_doctor, id_timeslot integer); insert into doctor (id_doctor) values (1 = doc_A), (2 = doc_B), (3 = doc_C); insert into TimeSlot (id_timeslot) values (1 = 10:00:00), (2 = 10:15:00), (3 = 10:30:00), (4 = 10:45:00); insert into bookslot (id_doctor,id_timeslot) values (1,1), (1,5), (2,1), (2,4), (3,1); Join mysql table $q = $mysqli->query("SELECT * FROM bookslot RIGHT JOIN timeslot ON bookslot.id_timeslot = timeslot.id_timeslot LEFT JOIN doctor ON bookslot.id_doctor = doctor.id_doctor "); echoing result and checking if it matches todays date or else set available while($r = $q->fetch_array(MYSQLI_ASSOC)) : echo '<tr>'; echo '<td align="center">' . $r['times'] . '</td>'; if($r['booked_date'] == date('Y-m-d') && $r['id_doctor'] == 1): echo '<td><a href="#available" class="booked">booked</a></td>'; else : echo '<td><a href="#" class="available">available</a></td>'; endif; if($r['booked_date'] == date('Y-m-d') && $r['id_doctor'] == 2): echo '<td><a href="#available" class="booked">booked</a></td>'; else : echo '<td><a href="#" class="available">available</a></td>'; endif; if($r['booked_date'] == date('Y-m-d') && $r['id_doctor'] == 3): echo '<td><a href="#available" class="booked">booked</a></td>'; else : echo '<td><a href="#" class="available">available</a></td>'; endif; echo '</tr>'; endwhile; result from webpage and i want the result look like: id_timeslot doc_A doc_B doc_C ---------------------------------------------- 1 booked booked booked 2 available available available 3 available available available 4 available booked available 5 booked available available Any other solution please!

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  • How can I use "IF statements" in a postgres trigger

    - by Dan B
    I have a trigger function that I only want to fire on certain instances of INSERTS, in this case, if do_backup = true. If it fires in all instances, I get an infinite loop. The logic seems pretty simple to me, and the rest of the function works. But the trigger function does not seem to register my conditional and always runs, even when backup = true. CREATE OR REPLACE FUNCTION table_styles_backup() RETURNS TRIGGER AS $table_styles_backup$ DECLARE ... do_backup boolean; BEGIN SELECT backup INTO do_backup FROM table_details WHERE id=NEW.table_meta_id; IF (do_backup = true) THEN ... INSERT INTO table_styles_versions ( ... ) VALUES ( ... ); END IF; RETURN NULL; END; $table_styles_backup$ LANGUAGE plpgsql; CREATE TRIGGER table_styles_backup AFTER INSERT ON table_styles FOR EACH ROW EXECUTE PROCEDURE table_styles_backup();

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  • how to use oracle package to get rid of Global Temp table

    - by john
    I have a sample query like below: INSERT INTO my_gtt_1 (fname, lname) (select fname, lname from users) In my effort to getting rid of temporary tables I created a package: create or replace package fname_lname AS Type fname_lname_rec_type is record ( fname varchar(10), lname varchar(10) ); fname_lname_rec fname_lname_rec_type Type fname_lname_tbl_type is table of fname_lname_rec_type; function fname_lname_func ( v_fnam in varchar2, v_lname in varchar2 )return fname_lname_tbl_type pipelined; being new to oracle...creating this package took a long time. but now I can not figure out how to get rid of the my_gtt_1 how can i say... INSERT INTO <newly created package> (select fnma, name from users)

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