数据库多个表相同字段的统一更新（存储过程）

CREATE PROCEDURE [dbo].[Sp_RegionCode_SD_value] 

AS 
    DECLARE @tableName VARCHAR(100) 
    DECLARE @sqlStmt VARCHAR(100) 
  BEGIN 
      DECLARE tablenamecursor CURSOR FOR 
        SELECT col.table_name 
        FROM   information_schema.columns col, 
               information_schema.tables tab 
        WHERE  col.table_name = tab.table_name 
               AND tab.table_type = 'BASE TABLE' 
               AND col.column_name = 'REGIONCODE'
        ORDER  BY col.table_name 
      OPEN tablenamecursor 
      WHILE 1 = 1 
        BEGIN 
            FETCH next FROM tablenamecursor INTO @tableName 
            IF @@fetch_status <> 0 
              BREAK 
            ELSE 
              BEGIN 
                  SET @sqlStmt = 'update ' + @tableName + ' set regioncode=''440606000000'' where regioncode=''449000000000'''
                  PRINT @sqlStmt 
                  EXEC(@sqlStmt) 
              END 
        END 
      CLOSE tablenamecursor 
      DEALLOCATE tablenamecursor 
  END 
  exec [dbo].[Sp_RegionCode_SD_value]