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Dec28

SQL SERVER – Difference Between Quality Assurance and Quality Control – QA vs QC

Pinal Dave
SQL Tips and Tricks
Developer, Software Development, SQL Server
6 Comments

A Tea Time chat at our India office turned into a debate on Quality Assurance vs Quality Control. Here is a simple way to tell QA and QC apart.

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Dec27

Writing Tests for Stored Procedures

Pinal Dave
SQL Tips and Tricks
Best Practices, SQL Stored Procedure, SQL Transactions, Testing
No Comments

Write tests for stored procedures with arrange, act, and assert steps in T-SQL, isolated data, and a repeatable check before every change.

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Dec26

SQL SERVER – TRUNCATE Can’t be Rolled Back Using Log Files After Transaction Session Is Closed

Pinal Dave
SQL Tips and Tricks
SQL Scripts
36 Comments

Can TRUNCATE be rolled back? Inside an open transaction yes, but once the session is closed TRUNCATE can’t be rolled back using log files, while DELETE can.

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Dec25

SQL SERVER – Mirrored Backup Introduction and Explanation

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

SQL Server 2005 Enterprise and Developer editions support mirrored backup: one BACKUP DATABASE command with MIRROR TO writes the same backup to two places.

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Dec25

SQL SERVER – Delete Duplicate Records – Count Duplicate Records Links

Pinal Dave
SQL Tips and Tricks
3 Comments

Two of my articles on managing duplicate rows: how to count duplicate records and how to delete duplicate records in SQL Server tables.

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Dec24

SQL SERVER – Object Oriented Database Management Systems

Pinal Dave
SQL Tips and Tricks
Database, DBA, Software Development
2 Comments

Why I do not write about Object Oriented Database Management Systems, and a paper by Dare Obasanjo that explains OODBMS and its tradeoffs versus RDBMS.

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Dec24

Setting Up Database Mail for Alerts

Pinal Dave
SQL Tips and Tricks
Database Mail, DBA, SQL Server Agent, SQL Server Configuration
1 Comment

Setting up Database Mail for alerts means creating an account and profile, testing delivery, linking Agent, and checking the queue when mail stops.

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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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