T-SQL

Technical Article

Function Based Index in T-SQL

  • Script

To build function based index in SQL Server, you can use indexed view (materialized view) or using a computed column. In this script, I give an exmaple of how to use the computed column to implement a function based index on a table to search through a free formated telephone number column. The basic step […]

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2007-04-10 (first published: )

9,205 reads

Technical Article

Query Hierarchical data Using CTE in T-SQL 2005

  • Script

In response to Sam Stange's "An old and new way to query Hierarchical data", this script uses the new CTE feature of SQL Server 2005 to display the hierarchical data all at once. I have added a check to prevent infinite loop in case there is a loop in the data (actually, there is one […]

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2007-04-11 (first published: )

1,439 reads

Technical Article

Campare Case Insensitive  CampareCaseInsensitive

  • Script

Case Insensitive Camparison remains a problem for most developers since SQL Server not supports any built in function for these purpose here is one wich compares varchar strings and returns 1 is mathes and 0 other wiseselect dbo.CampareCaseInsensitive('A','a')

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2007-03-29 (first published: )

85 reads

Technical Article

Match Date Only

  • Script

Here is a simple function to compare datepart of datetime fields , (no need to say ignores hour t,min,sec ... ) isDateMatch(@date1,@date2 ) retruns 1 if the datepart matches else returns 0regardsjohn

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2007-03-21 (first published: )

201 reads

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Creating JSON II

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Question of the Day

Creating JSON II

On SQL Server 2025, what happens when I run this code:

SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON)
GO

See possible answers