Technical Article

List All Constraints

These four scripts list concise information about all Default, Check, Unique, Foreign Key, and Primary Key constraints for the database in which they are run.  With minor column modifications, they could easily be unioned to provide a single list. The usual caveat applies about directly accessing system tables. They may change in future versions and/or […]

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2003-08-14

1,120 reads

Technical Article

Find Duplicate Employees, Customers, Etc.

Customers, employees, etc. come and go.  They get entered multiple times in inconsistent formats in databases.This simple script finds the duplicates across multiple formats and is easily modified as needed.  It's so easy, my grandmother could do it. Oops! No offense Grandma.For very large databases, create and join two temp tables indexed on the namedatetring […]

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2003-05-30

215 reads

Technical Article

Find Duplicate Indexes - Episode 1 (The Early SQL Versions)

The excellent script contributed by G.R. Preethiviraj Kulasingham (Preethi) Sri Lanka (contributed 2/20/03, modified 5/22/03) identifies duplicate indexes for the database on which the script is run.  It requires User Defined Functions, a feature restricted to SQL Server 2000.This version achieves similar results without using UDFs or creating any other permanent objects. It therefore works […]

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2003-05-28

777 reads

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Question of the Day

No More Deadlocks

After detecting deadlocks in SQL Server 2025 and lowering the time threshold for detecting future issues, when does the Database Engine return to the 5s default interval?

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