Indexing

Technical Article

Script to aid in Indexing Strategy

  • Script

When AUTOSTATS is used in a database, we can sometimes use these automatically generated statistics to find columns where SQL Server has built statistics on non-indexed columns that may benefit from an index. This script finds these columns and displays the selectivity of them. This script can be useful in troubleshooting poorly performing databases by […]

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2007-04-09 (first published: )

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Technical Article

Update statistics for all tables in any DB

  • Script

Most of the time even after executing dbcc dbreindex script on database you won't see much improvement in application/DB performance.  Thats because dbreindex creates statistics for all tables but it executes sp_updatestats which is like sample statistics. To get the maximum performance we had to execute Update statistics with fullscan on table. This simple will […]

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2006-12-22 (first published: )

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Technical Article

Quick Fix secondary Indexes ( SQL 2000 )

  • Script

In real world production tuning sometimes a "quick fix" is required. This script will generate index create scripts for any column ending ID which doesn't have an index. It's dirty and its quick but you might just be amazed by the results when run against your database!

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2007-07-11 (first published: )

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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