ETL processing, generally involves copying/moving, transforming, cleaning the records/transactions from one or multiple sources. Most of the batch processing or warehousing projects involve such data processing in millions on daily/weekly basis. Typically, there is a Staging area and production area. Records are cleaned, transformed, filtered and verified from staging to production area. This demands SQL Set theory based queries, parallel processing with multiple processors/CPU. The article focuses on need of SQL Set theory approach and parallel processing while processing large volume of ETL records using programming approach.
Importing text files is a common task for DBA's and Developers, but what happens when the text file is not properly formatted?
After a gap of sixteen months, Lionel Clarke, the creator of the only 3-D maze game to be written in TSQL, returns with a new SQL puzzle. It is very simple. You have to move as much of the data as you can from the source tables to the destination tables.
SQL Server 2008's new MERGE statement allows you to insert, update, or delete data based on certain join conditions in the same statement.
The growth of SQL Server's subsystems leaves Steve Jones wondering how should we be thinking about the product.
With the tenth installment of his series on XML, Jacob Sebastian turns his attention to the art of namespaces and how you can avoid ambiguity in interpreting various elements.
Find pointers to optimize tempdb performance in SQL Server by striping and splitting across multiple files in SQL Server 2005.
SQL Server 2005 offers T-SQL language features that can improve your productivity.
Spreadsheet to calculate a reasonably accurate picture of energy use of PCs and peripherals in your company.
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On SQL Server 2025, I have a database that has this collation: SQL_Latin1_General_CP1_CI_AS. I decide I want to run this code:
SELECT UNISTR('*3041*308A*304C*3068 and good night', '*') AS 'A Classic';
I get this error:Msg 9844, Level 16, State 4, Line 24 The char/varchar input type uses an unsupported collation. Only a UTF8 collation is supported with char/varchar input type in UNISTR function.What is the easiest way to fix this error? See possible answers