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COL_LENGTH

Returns defined length in bytes of column.

SYNTAX:

Select (‘tablename’,’Columnname’)

CREATE TABLE Tbl_emp
(

 ID INT IDENTITY(1,1) PRIMARY KEY,
 Name VARCHAR(50),
 Department NVARCHAR(50)

)

Example -1:

SELECT  COL_LENGTH('Tbl_emp','Name') AS ColLength






Example -2:

SELECT  COL_LENGTH('Tbl_emp','Department') AS ColLength






Example -3:

SELECT  COL_LENGTH('Tbl_emp','Address') AS ColLength





In above example 3 null value is returned .beacuase of Address column does not belongs to Tbl_emp table.



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