BI SQL # 233 : SQL Server DBA Scripts : Trim all column of given table

Hi Folks,

In this article we are going to cover How to Trim all column of given table.

In this post we are going to discuss following points:

• Problem Statement of SQL Script:
• Description of SQL Script:
• SQL Script Output Column
• Input Parameter of SQL Script
• SQL Script Code
• SQL Script Output Screenshot
• User Level to execute

Problem Statement of SQL Script:

How to Trim all column of given table ?

Description of SQL Script:

This script will Trim all column of given table.

SQL Script Output Column

Input Parameter of SQL Script

1.Table Name (@TableNames)

SQL Script Code

CREATE PROCEDURE npspro.TrimallColumnOfTable @TableNames VARCHAR
    (50)
AS
BEGIN
    DECLARE @count INT
        ,@i INT = 1
        ,@ColumnName VARCHAR(50)
        ,@Query VARCHAR(MAX)

    IF Object_id('tempdb..#TEMP') IS NOT NULL
    BEGIN
        DROP TABLE #TEMP;
    END

    CREATE TABLE #TEMP (
        ColumnName VARCHAR(50)
        ,Id INT IDENTITY(1, 1)
        )

    INSERT INTO #TEMP (ColumnName)
    EXEC (
            'SELECT c.name  FROM sys.columns c INNER JOIN      sys.types t 
ON c.system_type_id = t.system_type_id  
WHERE c.object_id = OBJECT_ID(''' 
            + @TableNames + 
            ''') AND c.is_identity <>1 AND t.name IN(''Varchar'',''CHAR'')'
            )

    SELECT @count = count(*)
    FROM #TEMP

    SET @Query = 'Update ' + @TableNames + ' Set '

    SELECT *
    FROM #TEMP T

    WHILE (@i <= @count)
    BEGIN
        SET @ColumnName = (
                SELECT ColumnName
                FROM #TEMP
                WHERE id = @i
                )

        IF (@i < @count)
        BEGIN
            SET @Query = @Query + @ColumnName + 
                '  = isnull(rtrim(ltrim(' + @ColumnName + 
                ')),'' '')' + ','
        END

        IF (@i = @count)
        BEGIN
            SET @Query = @Query + @ColumnName + 
                '  = isnull(rtrim(ltrim(' + @ColumnName + 
                ')),'' '')'
        END

        SET @i = @i + 1
    END

    EXEC (@Query)
END

SQL Script Output Screenshot

User Level to execute

300

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