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  • Transforming OLTP Relational Database to Data Warehousing Model

    - by Russ Cam
    What are the common design approaches taken in loading data from a typical Entity-Relationship OLTP database model into a Kimball star schema Data Warehouse/Marts model? Do you use a staging area to perform the transformation and then load into the warehouse? How do you link data between the warehouse and the OLTP database? Where/How do you manage the transformation process - in the database as sprocs, dts/ssis packages, or SQL from application code?

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  • MYSQL Select statment Order By with Group By

    - by mouthpiec
    I have the following simple SQL statment SELECT id, name, value_name, value_id FROM table GROUP BY id ORDER BY value_id DESC when grouping I would like to get the value_name and value_id of the tuple where the value_id is the biggest. The way it is i am getting the smallest value. For example 1, name1, valuename, 3 (where i know that there is a value_id of 5) Can you please help?

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  • MySQL join problem

    - by snaken
    Whats wrong with this SQL? It should return results but returns nothing SELECT `pid` FROM `products` LEFT JOIN `prods_to_features` ON (`ptf_pid` = `pid`) WHERE (`ptf_id` = '66' OR `ptf_id` = '67') AND (`ptf_id` = '76') Is it not possible to have the 2nd where clause for the table that has been used in the left join?

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  • how to specify literal value in linq union

    - by lowlyintern
    I have the following SQL query, note I want the literal value '0' in the second field in the second SELECT statement from the ItemSale table. How do I express this in LINQ? I get the error message 'Invalid anonymous type member declarator'. SELECT BranchNumber,QuantitySold FROM Department UNION SELECT BranchNumber,0 FROM ItemSale How to express the '0' in LINQ? var unionQuery = (from dept in Department select new { dept.BranchNumber, dept.QuantitySold, }) .Concat(from item in ItemSale select new { item.BranchNumber, 0 });

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  • Convert SQL Server Varbinary field to MYSQL, keeping data intact

    - by Mike Sheridan
    I was given the daunting task of converting a ASP website to PHP and SQL Server to MySQL, and I ran into an issue that hopefully somebody can help I have a user table which has a password field with datatype Varbinary(128), are using pwdencrypt to encrypt the password. Is there a way to transfer that over to MySQL, and somehow i need to be able to keep the password intact... how can i go about that? any pointers would be greatly appreciated!

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  • Update is not updating the whole string

    - by Malik
    Following is my SQL fiddle: http://sqlfiddle.com/#!2/f9bae/1 In which i am trying to check if the whole name is being verified by lookup table or not and if there is any error then it should get replaced by the correct value but the problem i am facing is that if any name contains more than one wrong values then query only update one part of that name and leave the rest unchanged , kindly let me know how can i modify my query for update so it'll update the whole name as per lookup table correct values. Thanks,

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  • How to show 0 when no row found

    - by user1685991
    I have a SQL query in which I am passing sysdate to the query problem is that when there is no matching date in table with sysdate then it don't shows the zero even if there is nvl applied here is my query select * from molasses where trunc(trn_dte) = trunc(sysdate) But it show data only when current date is present in table but I want to show zero if no data found in table.please help me to do this in oracle 10 g. Because some times the situation is like above and I have to display zero when no data found

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  • SQL-wrappers (activerecord) to recommened for python?

    - by Horace Ho
    is there an activerecord (any similar SQL-wrapper) for python? which is good for: used in a server-side python script light-weight supports MySQL what I need to do: insert (filename, file size, file md5, the file itself) into (string, int, string, BLOB) columns if the same file (checksum + filename) does not exist in db thx

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  • order keywords by frequency in PHP mySql

    - by Gusepo
    Hello, I've got a database with video ids and N keywords for each video. I made a table with 1 video ID and 1 keyword ID in each row. What's the easiest way to order keywords by frequency? I mean to extract the number of times a keyword is used and order them. Is it possible to do that with sql or do I need to use php arrays? Thanks

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  • Stored Procedure could not be found

    - by Beatles1692
    We use SQL server 2008 as our RDBMS and we have a database that has a different user rather than dbo as its owner. The problem is in one machine a stored procedure can not run unless its owner is mentioned. If we connect to our database using this user and try to execute the following : exec ourSP we get a "could not find ourSP" error but this works fine: exec user.ourSP Does anybody knows what can lead to such a strange behavior?

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  • Is there a better way to retrieve unique ID upon INSERT?

    - by Andy
    Hi, I am using the following MS SQL statement to insert records and return the unique auto-inc ID value all in one shot. Wonder if there is a simpler/faster/better way to do it? SET NOCOUNT ON; DECLARE @res table (ID bigint); INSERT INTO [Titles] ([Name],[Timestamp],[Title]) OUTPUT INSERTED.ID INTO @res VALUES ('Name','23 aug 2010','this is a title'); SELECT [ID] FROM @res;

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  • Changing the output of Getdate

    - by pauloya
    Is it possible to deceive SQL Server to return a different date on GetDate() without actually changing the machine date? This would be great, since we have a database with old data and I'm trying to test some queries that use getdate(). I can change my machine date but that brings some other problems with other applications... Any tips? Thanks!

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  • accessing SQL syntax reference in mysql workbench

    - by dcompiled
    Finding it a little bit tedious migrating to the new Mysql Workbench (5.2.22) even though it has many more features than the older GUI tools. Right now I'm confused why I can't find an SQL reference when I open the Doc Library. Is there a way to access this info within the workbench, I'd prefer not to have to open a browser to access reference info on the web.

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  • Select statement to check multiple rows against 2 variables

    - by Duncan Cook
    I have the following table : alertID inspectorID datelive dateread 1 none 2012-11-06 10:36:03.350 NULL 2 none 2012-11-06 10:36:25.043 NULL 3 none 2012-11-06 10:36:42.433 NULL 1 31030 2012-11-06 10:37:19.193 2012-06-11 10:34:47.000 I want to select the alerts that dont have the inspectors ID against it AND where the alert ID doenst match the one that has the inspectorID against it, ie inspector has read alert 1 so i only want it to return alerts 2 & 3 Am using Classic ASP and MS-SQL Cheers

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  • Tools for website/web application load testing?

    - by zarko.susnjar
    Before going into production, our client demands actual numbers of how many users our web application can handle. We have all kinds of features implemented including asset management (file uploads/downloads), documents import/export, various statistics, web-services etc. Which tool (or set of tools) could do this? Application details: XHTML/jQuery Coldfusion 8 SQL Server 2008 Windows Server 2008

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  • What tool for managing Oracle DB do you suggest?

    - by Artic
    What tool for managing Oracle DB do you suggest? I need to execute scripts and manage data in tables and develop some scripts and packages. I'v tried SQL developer and actually don't like it. Want some more features for developing (debug, code assist, integrated help and so on.)

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  • When would isSearchable return false for an Oracle JDBC column?

    - by Ian Varley
    In what cases would a call to java.sql.ResultSetMetaData.isSearchable(int col) return false for an Oracle database? The documentation for the method doesn't really answer the question: "Indicates whether the designated column can be used in a where clause." I can think of only one case - when the column is the result of an aggregate function (in which case it would have to be part of a HAVING filter, not a WHERE filter). Are there any other cases?

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  • solution for updating table based on data from another table

    - by I__
    i have 2 tables in access this is what i need: 1. if the PK from table1 exists in table2, then delete the entire record with that PK from table2 and add the entire record from table1 into table2 2. if the PK does not exist then add the record i need help with both the sql statement and the VBA i guess the VBA should be a loop, going through every record in table1. inside the loop i should have the select statement

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