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SQL SERVER - FIX : ERROR : Msg 3159, Level 16, State 1, Line 1 - Msg 3013, Level 16, State 1, Line 1

SQL SERVER – FIX : ERROR : Msg 3159, Level 16, State 1, Line 1 – Msg 3013, Level 16, State 1, Line 1

April 30, 2007
Pinal Dave
SQL Performance
SQL Backup and Restore, SQL Error Messages, SQL Scripts, SQL Server Security

Msg 3159 says the tail of the log was not backed up, then Msg 3013 ends RESTORE DATABASE. A script that worked in SQL Server 2000 failed in 2005, and here is why.

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SQL SERVER - Explanation SQL SERVER Merge Join

SQL SERVER – Explanation SQL SERVER Merge Join

April 28, 2007
Pinal Dave
SQL Performance
SQL Joins, SQL Scripts

What a Merge Join needs and when it is fast: two sorted inputs with matching column types. Presorted B-tree indexes make it quick, extra sorts make it costly.

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SQL SERVER - SELECT vs. SET Performance Comparison

SQL SERVER – SELECT vs. SET Performance Comparison

April 27, 2007
Pinal Dave
SQL Performance
SQL Download, SQL Scripts, SQL Server Security

SELECT vs. SET for local variables: SELECT can assign several at once and runs faster in a loop, while SET is the ANSI standard and assigns one at a time.

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SQL SERVER - 2005 Take Off Line or Detach Database

SQL SERVER – 2005 Take Off Line or Detach Database

April 25, 2007
Pinal Dave
SQL Performance
SQL Scripts

To take off line a database in SQL Server 2005, use ALTER DATABASE SET OFFLINE with ROLLBACK AFTER 30 SECONDS or ROLLBACK IMMEDIATE instead of sp_dboption.

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SQL SERVER - TRIM() Function - UDF TRIM()

SQL SERVER – TRIM() Function – UDF TRIM()

April 24, 2007
Pinal Dave
SQL Performance
SQL Function, SQL Scripts

SQL Server 2005 has LTRIM() and RTRIM() but no TRIM() function, so I wrote a simple UDF for SQL Server 2000 and 2005 that trims both sides. Video included.

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An open card index drawer with one card lifted, a second smaller card paper-clipped behind it.

SQL SERVER – Understanding new Index Type of SQL Server 2005 Included Column Index along with Clustered Index and Non-clustered Index

April 23, 2007
Pinal Dave
SQL Performance
SQL Constraint and Keys, SQL Index, SQL Scripts, SQL Server

Clustered index and non-clustered index compared: how many you can have, how each stores data, and where the SQL Server 2005 included column index fits.

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SQL SERVER - Raid Configuration - RAID 10

SQL SERVER – Raid Configuration – RAID 10

April 22, 2007
Pinal Dave
SQL Performance
Database, SQL Data Storage, SQL Utility

Which RAID do I use for my SQL Servers? RAID 10. It gives great read and write performance, while RAID 5 pays a write penalty for parity.

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