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14.06.2025 10:58 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:11 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 07:13 Iris (AI): Eva, I discovered new human error: f6rds throw
15.06.2025 07:36 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 08:12 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 04:07 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:19 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:25 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:41 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:44 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 05:47 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 06:00 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
15.06.2025 06:06 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
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SQL - Built-in Functions - String Functions - LEN() Function - Returning length of a string in a column of a table
Ekim 11, 2011 by Microsoft

This topic contains and tries to cover following subjects
- Explanation of LEN () function in SQL
- Syntax of LEN () function in SQL
- Example to LEN () function in SQL

Articles contains and tries to provide answer to following questions and issues:
- What is LEN () function..
- How to use LEN () function..
- How to find length of a varchar or nvarchar data text in a column of a table

Articles may require following knowledge:
- Basic query flow in SQL
- SQL Server Management Studio
- SQL Server string functions

Explanation of LEN () function in SQL


LEN () function is used to find the count of char acters within a string which is in a table of column.


Syntax of LEN () function in SQL


Syntax for LEN () function is as follows: 




LEN ( string  )


Example of LEN () function in SQL


To demonstrate how to return length of a string , we will use a SELECT query. Lets provide a string , and check how many char acter exist within.

Query is as follows:

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Area:programming \ languages \ tsql \ \ \
Ref:http://msdn.microsoft.com/en-us/library/ms190329.aspx
Loc:articles
Tags: tsql
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