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Help modifying search and replace stored proc

Posted on 2007-12-04
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226 Views
Last Modified: 2008-02-01
Hi everyone.
I need to modify this search and replace stored proc currently If I perform

exec searchandreplace 'tom', 'tommy'   it will find things like 'tomorrow' and make it 'tommyorrow'. What I need it to do is only do replacements for Full String replacement ("tom" must match "tom" exactly)

A work around to having to find the Full String replacement ("tom" must match "tom" exactly) could be a way to specify a specific column names to replace in.

But for this to work It would have to work for a range of column names as its not exactly the same in all tables.

Thanks



CREATE PROC SearchAndReplace
(
      @SearchStr nvarchar(100),
      @ReplaceStr nvarchar(100)
)
AS
BEGIN
 
      
 
 
      SET NOCOUNT ON
 
      DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110), @SQL  
nvarchar(4000), @RCTR int
 
--- disable triggers
/*To disable triggers*/
DECLARE C CURSOR FOR
SELECT 'ALTER TABLE ' + QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) + ' DISABLE TRIGGER ALL'
FROM INFORMATION_SCHEMA.TABLES
WHERE
OBJECTPROPERTY(OBJECT_ID(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)), 'IsMSShipped') = 0
AND TABLE_TYPE = 'BASE TABLE'
OPEN C
FETCH NEXT FROM C INTO @SQL
WHILE @@FETCH_STATUS = 0 BEGIN
  EXEC( @SQL )
  FETCH NEXT FROM C INTO @SQL
END
CLOSE C
DEALLOCATE C
 
--- original script begin
      SET  @TableName = ''
      SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')
      SET @RCTR = 0
 
      WHILE @TableName IS NOT NULL
      BEGIN
            SET @ColumnName = ''
            SET @TableName =
            (
                  SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
                  FROM       INFORMATION_SCHEMA.TABLES
                  WHERE             TABLE_TYPE = 'BASE TABLE'
                        AND      QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
                        AND      OBJECTPROPERTY(
                                    OBJECT_ID(
                                          QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
                                           ), 'IsMSShipped'
                                           ) = 0
            )
 
            WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
            BEGIN
                  SET @ColumnName =
                  (
                        SELECT MIN(QUOTENAME(COLUMN_NAME))
                        FROM       INFORMATION_SCHEMA.COLUMNS C
                        WHERE             TABLE_SCHEMA      = PARSENAME(@TableName, 2)
                              AND      TABLE_NAME      = PARSENAME(@TableName, 1)
                              AND      DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar')
                              AND      QUOTENAME(COLUMN_NAME) > @ColumnName
--- begin test for computed
                              AND NOT EXISTS (SELECT * FROM SYSCOLUMNS S
                                WHERE S.NAME = C.COLUMN_NAME
                                  AND S.ID = OBJECT_ID(C.TABLE_NAME)
                                  AND S.ISCOMPUTED = 1)
--- end test for computed
                  )
      
                  IF @ColumnName IS NOT NULL
                  BEGIN
                        SET @SQL=      'UPDATE ' + @TableName +
                                    ' SET ' + @ColumnName
                                    + ' =  REPLACE(' + @ColumnName + ', '
                                    + QUOTENAME(@SearchStr, '''') + ', ' + QUOTENAME(@ReplaceStr,  
'''') +
                                    ') WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
                        EXEC (@SQL)
                        SET @RCTR = @RCTR + @@ROWCOUNT
                  END
            END      
      END
 
      SELECT 'Replaced ' + CAST(@RCTR AS varchar) + ' occurence(s)' AS 'Outcome'
END
 
--- ENABLE TRIGGERS
 
DECLARE C CURSOR FOR
SELECT 'ALTER TABLE ' + QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) + ' ENABLE TRIGGER ALL'
FROM INFORMATION_SCHEMA.TABLES
WHERE
OBJECTPROPERTY(OBJECT_ID(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)), 'IsMSShipped') = 0
AND TABLE_TYPE = 'BASE TABLE'
OPEN C
FETCH NEXT FROM C INTO @SQL
WHILE @@FETCH_STATUS = 0 BEGIN
  EXEC( @SQL )
  FETCH NEXT FROM C INTO @SQL
END
CLOSE C
DEALLOCATE C

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Question by:tconnelly
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4 Comments
 
LVL 11

Accepted Solution

by:
Otana earned 500 total points
ID: 20409428
If you want an exact match, take the '%' out of your string.
0
 

Author Comment

by:tconnelly
ID: 20409492
so make the line

SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')

like this ?

SET @SearchStr2 = QUOTENAME(@SearchStr,'''')
0
 
LVL 11

Expert Comment

by:Otana
ID: 20409515
Yes, try it and see what happens.
0
 
LVL 25

Expert Comment

by:imitchie
ID: 20409681
line 114:       DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SQL  
line 36: -- delete this line
line 80:        ') WHERE ' + @ColumnName + ' = ' + @SearchStr

Hi tconnelly, this one is easy enough. The other aspects will be more tricky, but you'll get much more traction with others taking a task at a time. Have fun.
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