Maintenance and Management

Technical Article

Eliminate Duplicates

  • Script

This will find and delete all duplicate rows. You can refine the granularity of uniqueness by including more columns than just the Primary Key. If you are picky about which rows you want to delete, don't use this. Instead use the 'Find Duplicates' script I just submitted and then delete manually.

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2002-05-24

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Technical Article

Find Duplicates

  • Script

Find duplicates in any table, and report the number of duplicates. Enter in the table name, and the field or fieldsfor which there should only be one row for each of that field, but you suspect are more. For example, if an employee table has more than one record for an employeethis will find any […]

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2002-05-24

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Technical Article

Check in New DDL to SourceSafe

  • Script

Rather than invent (or learn) a whole new set of tools to preserve and version all DDL underneath our databases, we decided to use SourceSafe (something we're already using for all other source code). -- We've developed this VBscript to run nightly; it recreates object-level DDL in a given database and compares each object's script […]

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2002-05-09

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Question of the Day

Using CHOOSE()

We have this code that sets some status values and then queries them using the CHOOSE() function in SQL Server 2025.

CREATE TABLE Status
(
    StatusID INT,
    StatusDescription VARCHAR(20)
);
GO
INSERT dbo.Status
(
    StatusID,
    StatusDescription
)
VALUES
(0, 'Uncategorized'),
(1, 'Active'),
(2, 'Inactive'),
(3, 'Temp');

GO
SELECT CHOOSE(StatusID, 'Unknown', 'Active', 'Inactive', 'Temporary')
FROM Status;
When the SELECT runs, what is returned?

See possible answers