|
马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。
您需要 登录 才可以下载或查看,没有账号?注册账号
×
存货明细账中经常出现错行的现象,就是某些字段出现在了不该出现的位置上,而它自己的位置又被别的字段所占据了,经过仔细测试以后,发现这是数据表中有非法字符造成的.
以下是修复语句.
--作用:去除指定表中数据类型是VARCHAR,CHAR,NVARCHAR的字段值中的不可见字符
--日期:2004-11-04
--作者:CXL
--注意:使用前请指定对应要修改的表名,并且需要在对应数据库下执行;
SET NOCOUNT ON
DECLARE @TblName VARCHAR(100)
DECLARE @UpdateString NVARCHAR(1000)
DECLARE @SelectString NVARCHAR(1000)
DECLARE @COlName VARCHAR(100)
DECLARE @COUNT INT
SET @TblName = 'ia_subsidiary'--指定想要修改的表名
--定义游标取出指定表内的数据类型是VARCHAR,char,nVARCHAR的字段名称
DECLARE cur_ColName CURSOR
FOR
SELECT col.name
FROM syscolumns AS col
inner join sysobjects AS obj ON col.ID = obj.ID
INNER join systypes AS typ ON col.xtype = typ.xtype
WHERE obj.xtype ='U'
AND obj.name = @TblName
AND typ.name IN ('VARCHAR','CHAR','NVARCHAR','NCHAR')
FOR READ ONLY
--打开游标
OPEN cur_ColName
FETCH NEXT FROM cur_ColName INTO @ColName
IF @@FETCH_STATUS<>0
BEGIN
PRINT '没有对应表或字段,'
PRINT '请确认当前数据库内有' + @TblName + '表,'
PRINT '或该表内有VARCHAR、CHAR、NVARCHAR、NCHAR类型的字段!'
GOTO LABCLOSE
END
--循环修改
WHILE @@FETCH_STATUS=0
BEGIN
--拼修改字符串
--去掉左边的不可见字符
SET @SelectString = 'SELECT @COU=COUNT(*)
FROM ' + @TblName +'
WHERE ASCII(LEFT(' + @ColName +',1))<32
AND '+ @ColName + ' IS NOT NULL'
EXEC sp_executesql @SelectString,N'@COU INT OUTPUT',@COUNT OUTPUT
WHILE @COUNT>0
BEGIN
SET @UpdateString =
' UPDATE ' + @TblName +
' SET ' + @ColName + '=RIGHT(' + @ColName + ',LEN(' + @ColName + ')-1)
WHERE ASCII(LEFT(' + @ColName + ',1))<32
AND ' + @ColName + ' IS NOT NULL'
EXEC sp_executesql @UpdateString
EXEC sp_executesql @SelectString,N'@COU INT OUTPUT',@COUNT OUTPUT
END
--去掉右边的不可见字符
SET @SelectString = 'SELECT @COU=COUNT(*)
FROM ' + @TblName +'
WHERE ASCII(RIGHT(' + @ColName +',1))<32
AND '+ @ColName + ' IS NOT NULL'
EXEC sp_executesql @SelectString,N'@COU INT OUTPUT',@COUNT OUTPUT
WHILE @COUNT>0
BEGIN
SET @UpdateString =
' UPDATE ' + @TblName +
' SET ' + @ColName + '=LEFT(' + @ColName + ',LEN(' + @ColName + ')-1)
WHERE ASCII(RIGHT(' + @ColName + ',1))<32
AND ' + @ColName + ' IS NOT NULL'
EXEC SP_EXECUTESQL @UpdateString
EXEC sp_executesql @SelectString,N'@COU INT OUTPUT',@COUNT OUTPUT
END
PRINT 'column: ' + @ColName + '---ok'
FETCH NEXT FROM cur_ColName INTO @ColName
END
--关闭、释放游标
LABCLOSE: CLOSE cur_ColName
DEALLOCATE cur_ColName |
|