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Aug30

SQL SERVER – 2005 – Find Database Collation Using T-SQL and SSMS

Pinal Dave
SQL Tips and Tricks
SQL Collation, SQL Scripts
27 Comments

Two ways to check database collation using T-SQL and SSMS in SQL Server 2005, and why DATABASEPROPERTYEX in T-SQL is the one I recommend.

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Aug29

SQL SERVER – Difference and Explanation among DECIMAL, FLOAT and NUMERIC

Pinal Dave
SQL Tips and Tricks
SQL Datatype, SQL Scripts
93 Comments

What is the difference between Decimal and Numeric? None, they are the same. Float is different: it is approximate, while Decimal keeps exact precision.

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Aug28

SQL SERVER – Actual Execution Plan vs. Estimated Execution Plan

Pinal Dave
SQL Performance
DBA, Execution Plan, SQL Scripts
30 Comments

Actual Execution Plan or Estimated Execution Plan? I always use the actual plan because it is accurate. Shortcuts: CTRL+M for actual, CTRL+L for estimated.

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Aug27

SQL SERVER – 2005 – Use Always Outer Join Clause instead of (*= and =*)

Pinal Dave
SQL Tips and Tricks
SQL Deprecated Feature, SQL Joins, SQL Scripts
20 Comments

My friend’s queries failed in SQL Server 2005 because they used *= and =* for joins. Always use the LEFT or RIGHT outer join clause instead.

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Aug26

SQL SERVER – 2005 – No Backup Support For Named Pipes

Pinal Dave
SQL Tips and Tricks
SQL Backup and Restore
4 Comments

SQL Server 2000 had backup support for named pipes, but SQL Server 2005 only backs up to disk and tape. I also share how we back up our own databases.

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Aug25

SQL SERVER – FIX : Error : msg 2540 – The system cannot self repair this error

Pinal Dave
SQL Tips and Tricks
SQL Backup and Restore, SQL Data Storage, SQL Error Messages, SQL Scripts
No Comments

Msg 2540 means the system cannot self repair this error, usually corrupt metadata or system files. My fix order: restore the backup, DBCC repair, check hardware.

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Aug24

SQL SERVER – T-SQL Script to Attach and Detach Database

Pinal Dave
SQL Tips and Tricks
SQL Backup and Restore, SQL Data Storage, SQL Scripts, SQL Server
32 Comments

Move a database to a new server in three steps: Detach Database with sp_detach_db, copy the data and log files, then attach it again with CREATE DATABASE.

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SQL Server slow? Let's fix it together in about four hours.

Pinal Dave

In my Comprehensive Database Performance Health Check, you share your screen, I guide you, and we fix your biggest performance troublemakers. No passwords. No remote access.

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Who We Are

Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 24 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 19 books and 120 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).


Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.


Shaivi Pinalkumar Dave is a book author and a women’s artistic gymnast.

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