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  • Best Practices - log in stored procedures?

    - by hgulyan
    If you have a long running SP, do you log somehow it's actions or just wait for this message? "Command(s) completed successfully." I assume, that there can be plenty solutions on this subject, but is there any best practice - a simple solution that is frequently used?

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  • subquery factoring questions.

    - by Sujee
    Hi, Please explain. a) is "subquery factoring" used to replace a non-correlated subquery? What about correlated subquery? b) if it is true, are "subquery" and "subquery factoring" executed exactly once? c) "subquery" vs "subquery factoring" which one is better Thank you.

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  • Need to fix my regex

    - by Misha Zaslavsky
    I am trying to match a string to a regex pattern, but have some problems. My string could have 3 forms: [dbo].[Start] dbo.Start Start This is my regex: "^((\[)?dbo(\])?)?(\.)?(\[)?Start(\])?$" All 3 forms returns success but there are some more options such as: [dboStart or dbo[Start I know that this is because it is optional, but how could I make dependencies when making optional, so that if one optional has value then the second optional must have a value too. Could you help me please to fix this? Thanks.

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  • Postgres query optmization

    - by hdx
    Hey guys, trying to optimize this query to solve a duplicate user issue: SELECT userid, 'ismaster' AS name, 'false' AS propvalue FROM user WHERE userid NOT IN (SELECT userid FROM userprop WHERE name = 'ismaster'); The problem is that the select after the NOT IN is 120.000 records and it's taking forever. Any suggestion?

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  • DB Designer creates compound primary key

    - by Jon Winstanley
    When adding relationships to a database model in DB Designer 4, a composite primary key is being created every time. So every foreign key I add, I get an extra key added to a composite primary key. I think I must have changed a setting as I don't remember it doing this in the past. Does anyone know how to turn off this feature as I prefer to use a single surrogate primary keys in my database tables?

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  • Why can't I create a database in an empty ASP MVC 2 project using Project->Add->New Item->SQL Server

    - by Dr Dork
    I'm diving head first into ASP MVC and am playing around with creating and manipulating a database. I did a search and found this tutorial for creating a database, however when I follow it, I get this error when trying to add a new database to my fresh, empty ASP MVC 2 project... A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) The only requirement the tutorial mentioned was SQL Server Express, but when I went to download it, it said it was already installed. I'm assuming it was part of the VS 2010 RC I installed and am running. So I don't know what else I need if I am missing something. This is all new to me, so I'm sure I'm missing something obvious here and after I'm done posting this question, I plan to do some more research into the topic of databases and how they work with ASP MVC. In the meantime, I was you could help me answer a couple high level questions... What am I missing/forgetting to do that is causing this error? Any suggestions for good resources/tutorials that focus on using databases with ASP MVC? I've done a lot of database programming in the past, so I'm familiar with the concepts of relational databases and the SQL language. I wish I could find a good resource for learning how to work with them in an ASP dev environment, as well as a good breakdown of all the related technologies used for working with them (i.e. LINQ to SQL). Thanks so much in advance for all your help! I'm going to start researching these questions right now.

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  • Problem with grails web app running in production: "No such property: save for class: JsecRole"

    - by Sarah Boyd
    I've got a grails 1.1 web app running great in development but when I try and run it in production with an sqlserver database it crashes in a weird way. The relevant part of my datasource.groovy is as follows: environments { development { dataSource { dbCreate = "create-drop" // one of 'create', 'create-drop','update' url = "jdbc:hsqldb:mem:devDB" } } test { dataSource { dbCreate = "update" url = "jdbc:hsqldb:mem:testDb" } } production { dataSource { dbCreate = "update" driverClassName = "com.microsoft.sqlserver.jdbc.SQLServerDriver" endUsername = "sa" password = "pw4db" url = "jdbc:sqlserver://localhost:1433;databaseName=ReleasePlanner;selectMethod=cursor" The error message I receive is: Message: No such property: save for class: JsecRole Caused by: groovy.lang.MissingPropertyException: No such property: save for class: JsecRole Class: ProjectController At Line: [28] Code Snippet: 27: println "###about to create project roles" 28: userManagerService.createProjectRoles(project) 29: userManagerService.addUserToProject(session.user.id.toString(), project, 'owner') } } } The stacktrace is as follows: org.codehaus.groovy.runtime.InvokerInvocationException: groovy.lang.MissingPropertyException: No such property: save for class: JsecRole at org.jsecurity.web.servlet.JSecurityFilter.doFilterInternal(JSecurityFilter.java:382) at org.jsecurity.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:180) Caused by: groovy.lang.MissingPropertyException: No such property: save for class: JsecRole at UserManagerService.createProjectRoles(UserManagerService.groovy:9) at UserManagerService$$FastClassByCGLIB$$6fa73713.invoke(<generated>) at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) at UserManagerService$$EnhancerByCGLIB$$fcf60984.createProjectRoles(<generated>) at UserManagerService$createProjectRoles.call(Unknown Source) at ProjectController$_closure4.doCall(ProjectController.groovy:28) at ProjectController$_closure4.doCall(ProjectController.groovy) ... 2 more Any help is appreciated. Thanks Sarah

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  • Postgres update rule returning number of rows affected

    - by Lithium
    I have a view table which is a union of two seperate tables (say Table _A and Table _B). I need to be able to update a row in the view table, and it seems the way to do this was through a 'view rule'. All entries in the view table have seperate id's, so an id that exists in table _A won't exist in table _B. I created the following rule: CREATE OR REPLACE RULE view_update AS ON UPDATE TO viewtable DO INSTEAD ( UPDATE _A SET foo = false WHERE old.id = _A.id; UPDATE _B SET foo = false WHERE old.id = _B.id; ); If I do an update on table _B it returns the correct number of rows affected (1). However if I update table _A it returns (0) rows affected even though the data was changed. If I swap out the order of the updates then the same thing happens, but in reverse. How can I solve this problem so that it returns the correct number of rows affected. Thanks.

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  • SSIS(sql server integration service) xml data flow

    - by swapna
    Hi, I have an xml file the content which i have to write to a Database table using ssis pacakge. I am using xml source nad oledb destination My issue now is this xml file generate multiple outputs .(event,produt,offer,form) etc. But i need to write all in one data row(more than one if 2 products are there for the event) in the database. But i do not know how to use this multiple outputs and make a single row for a event. I hav read numerous articles about this subject but not able to take a decision.what is the right way of doing this. 1) xml source ? (if i use this how do i merge the multiple outputs) 2) or a script task using xml objects read and write to the DB. or anything new ? Please provide me some solutions xml sample file * - ABc. 2009-06-07 2010-04-30 region test 1 contact - offertest product1 product1 187 * Thanks SNA

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  • calling a stored proc over a dblink

    - by neesh
    I am trying to call a stored procedure over a database link. The code looks something like this: declare symbol_cursor package_name.record_cursor; symbol_record package_name.record_name; begin symbol_cursor := package_name.function_name('argument'); loop fetch symbol_cursor into symbol_record; exit when symbol_cursor%notfound; -- Do something with each record here, e.g.: dbms_output.put_line( symbol_record.field_a ); end loop; CLOSE symbol_cursor; When I run this from the same DB instance and schema where package_name belongs to I am able to run it fine. However, when I run this over a database link, (with the required modification to the stored proc name, etc) I get an oracle error: ORA-24338: statement handle not executed. The modified version of this code over a dblink looks like this: declare symbol_cursor package_name.record_cursor@db_link_name; symbol_record package_name.record_name@db_link_name; begin symbol_cursor := package_name.function_name@db_link_name('argument'); loop fetch symbol_cursor into symbol_record; exit when symbol_cursor%notfound; -- Do something with each record here, e.g.: dbms_output.put_line( symbol_record.field_a ); end loop; CLOSE symbol_cursor;

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  • Deadlock error in INSERT statement

    - by Gnanam
    We've got a web-based application. There is a time-bound database operation (INSERTs and UPDATEs) in the application which takes more time to complete, hence this particular flow has been changed into Java Thread so it will not wait (block) for the complete database operation to be completed. My problem is, if more than 1 user come across this particular flow, I'm facing the following error thrown by PostgreSQL: org.postgresql.util.PSQLException: ERROR: deadlock detected Detail: Process 13560 waits for ShareLock on transaction 3147316424; blocked by process 13566. Process 13566 waits for ShareLock on transaction 3147316408; blocked by process 13560. Above error is consistently thrown in INSERT statements. Additional Information: 1) I have PRIMARY KEY defined in this table. 2) There are FOREIGN KEY references in this table. 3) Separate database connection is passed to each Java Thread. Technologies Web Server: Tomcat v6.0.10 Java v1.6.0 Servlet Database: PostgreSQL v8.2.3 Connection Management: pgpool II

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  • How can I get a distinct list of elements in a hierarchical query?

    - by RenderIn
    I have a database table, with people identified by a name, a job and a city. I have a second table that contains a hierarchical representation of every job in the company in every city. Suppose I have 3 people in the people table: [name(PK),title,city] Jim, Salesman, Houston Jane, Associate Marketer, Chicago Bill, Cashier, New York And I have thousands of job type/location combinations in the job table, a sample of which follow. You can see the hierarchical relationship since parent_title is a foreign key to title: [title,city,pay,parent_title] Salesman, Houston, $50000, CEO Cashier, Houston, $25000 CEO, USA, $1000000 Associate Marketer, Chicago, $75000 Senior Marketer, Chicago, $125000 ..... The problem I'm having is that my Person table is a composite key, so I don't know how to structure the start with part of my query so that it starts with each of the three jobs in the cities I specified. I can execute three separate queries to get what I want, but this doesn't scale well. e.g.: select * from jobs start with city = (select city from people where name = 'Bill') and title = (select title from people where name = 'Bill') connect by prior parent_title = title UNION select * from jobs start with city = (select city from people where name = 'Jim') and title = (select title from people where name = 'Jim') connect by prior parent_title = title UNION select * from jobs start with city = (select city from people where name = 'Jane') and title = (select title from people where name = 'Jane') connect by prior parent_title = title How else can I get a distinct list (or I could wrap it with a distinct if not possible) of all the jobs which are above the three people I specified?

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  • Stored Procedures last access time?

    - by Ardman
    Is it possible to find out when a Stored Procedure was last accessed? I tried the following: SELECT * FROM sys.dm_db_index_usage_stats WHERE [database_id] = DB_ID() AND [object_id] = OBJECT_ID('stored procedure name') and it returns a blank resultset.

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  • Recording SELECT statements in PostgreSQL 8.4

    - by David Anniwell
    Hi All I've got a table which contains sensitive data and according to data protection policy we have to keep a record of every read/write of the data including a row identifier and the user who accessed the table. The writing is no issue using triggers but obviously triggers aren't supported for SELECT statements. What's the best method of doing this? I've looked at rules but I can't get them to INSERT into a table, and I've tried logging every query but this doesn't seem to log SELECT statements. Ideally for security I'd like to keep the log within a table on the database but logging to a file is fine too. Thanks David

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  • Inserting "null" (literally) in to a stored procedure parameter.

    - by Nazadus
    I'm trying to insert the word "Null" (literally) in to a parameter for a stored procedure. For some reason SqlServer seems to think I mean NULL and not "Null". If I do a check for IF @LastName IS NULL // Test: Do stuff Then it bypasses that because the parameter isn't null. But when I do: INSERT INTO Person (<params>) VALUES (<stuff here>, @LastName, <more stuff here>); // LastName is 'Null' It bombs out saying that LastName doesn't accept nulls. I would seriously hate to have this last name, but someone does... and it's bombing the application. We're using SubSonic 2.0 (yeah, it's fairly old but upgrading is painful) as our DAL and stepping through it, I see it does create the parameters properly (for what I can tell). I've tried creating a temp table to see if I could replicate it manually but it seems to work just fine. Here is the example I create: DECLARE @myval VARCHAR(50) SET @myval = 'Null' CREATE TABLE #mytable( name VARCHAR(50)) INSERT INTO #mytable VALUES (@myval) SELECT * FROM #mytable DROP table #mytable Any thoughts on how I can fix this?

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  • Loading SQL dump before running Django tests

    - by knutin
    I have a fairly complex Django project which makes it hard/impossible to use fixtures for loading data. What I would like to do is to load a database dump from the production database server after all tables has bene created by the testrunner and before the actual tests start running. I've tried various "magic" in MyTestCase.setUp(), but with no luck. Any suggestions would be most welcome. Thanks.

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  • Ajax Content Loading(Processing) image or indicator

    - by Arny
    Hi there, in part of my web page, I have couple of asp:image Thumbnails, onclick I use ajax modal popup extender to show the imgae in full size which are working fine, what I need to add is to have a processing image or indicator both in thumbnail and modal popup extender, I also have ajax autocomplete that is working fine, I need to add some indicator or processing image to it as soon as user start typing a word. any idea? Thanks in advance

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  • nested sql statment using and

    - by klay
    hi guys, how to make this work in mysql? select ID,COMPANY_NAME,contact1, SUBURB, CATEGORY, PHONE from Victoria where (city in ( select suburb from allsuburbs)) and CATEGORY='Banks' this below statement is working: select ID,COMPANY_NAME,contact1, SUBURB, CATEGORY, PHONE from Victoria where city in ( select suburb from allsuburbs) if I add "and" , it gives me an empty resultset, thanks

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  • Dealing with XML in ASP.NET MVC

    - by Matt W
    I have a block of XML in a database which is easy enough to pull out using ASP.NET MVC, however I would like to access and modify the XML in an way more consistent with class instances. Is there a way to get the MVC (or any other model) to generate a data access (or perhaps Entity) class set from the DB-stored XML? If the above is rather obtuse, the question could be summarised as; What method would you use to best access and modify XML stored in a database from an ASP.NET MVC application? Thanks, Matt.

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  • Linq for java

    - by Milhous
    Would a LINQ for java be a useful tool? I have been working on a tool that will allow a java object to map to a row in a database. Would this be useful for java programmers? What features would be useful?

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  • handling long running large transactions with perl dbi

    - by 1stdayonthejob
    I've got a large transaction comprising of getting lots of data from database A, do some manipulations with this data, then inserting the manipulated data into database B. I've only got permissions to select in database A but I can create tables and insert/update etc in database B. The manipulation and insertion part is written in perl and already in use for loading data into database B from other data sources, so all that's required is to get the necessary data from database A and using it to initialize the perl classes. How can I go about doing this so I can easily track back and pick up from where the error happened if any error occurs during the manipulation or insertion procedures (database disconnection, problems with class initialization because of invalid values, hard disk failure etc...)? Doing the transaction in one go doesn't seem like a good option because the amount data from database A means it would take at least a day or 2 for data manipulation and insertion into database B. The data from database A can be grouped into around 1000 groups using unique keys, with each key containing 1000s of rows each. One way I thought I could do is to write a script that does commits per group, meaning I've got to track which group has already been inserted into database B. The only way I can think of to track the progress of which groups have been processed or not is either in a log file or in a table in database B. A second way I thought could work is to dump all the necessary fields needed for loading the classes for manipulation and insertion into a flatfile, read the file to initialize the classes and insert into database B. This also means that I got to do some logging, but should narrow it down to the exact row in the flatfile if any error occurs. The script will look something like this: use strict; use warnings; use DBI; #connect to database A my $dbh = DBI->connect('dbi:oracle:my_db', $user, $password, { RaiseError => 1, AutoCommit => 0 }); #statement to get data based on group unique key my $sth = $dbh->prepare($my_sql); my @groups; #I have a list of this already open my $fh, '>>', 'my_logfile' or die "can't open logfile $!"; eval { foreach my $g (@groups){ #subroutine to check if group has already been processed, either from log file or from database table next if is_processed($g); $sth->execute($g); my $data = $sth->fetchall_arrayref; #manipulate $data, then use it to load perl classes for insertion into database B #. #. #. } print $fh "$g\n"; }; if ($@){ $dbh->rollback; die "something wrong...rollback"; } So if any errors do occur, I can just run this script again and it should skip the groups or rows that have been processed and continue. Both these methods is just variations on the same theme, and both require going back to where I've been tracking my progress (in table or file), skip the ones that've been commited to database B and process the remaining data. I'm sure there's a better way of doing this but am struggling to think of other solutions. Is there another way of handling large transactions between databases that require data manipulation between getting data out from one and inserting into another? The process doesn't need to be all in Perl, as long as I can reuse the perl classes for manipulating and inserting the data into the database.

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