mssql怎么批量替换整个数据库

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declare cur cursor FOR
SELECT name,id FROM sysobjects WHERE xtype=U

open cur
fetch next FROM cur INTO @tableName,@tbID

while @@fetch_status=0
begin
declare cur1 cursor FOR
--xtype in (231,167,239,175,99) 为char,varchar,nchar,nvarchar,ntext类型
SELECT name FROM syscolumns WHERE xtype IN (231,167,239,175,99) AND
open cur1
fetch next FROM cur1 INTO @columnName
while @@fetch_status=0
begin
SET @sql=update [ + @tableName + ] set [+ @columnName +]= replace(cast([+@columnName+] as varchar(8000)),+@Str1+,+@Str2+) where [+@columnName+] like
--update tablename set fieldA=replace(cast(fieldA as varchar(8000)) ,aa,bb)这样的语句。
exec sp_executesql @sql
SET @iRow=@@rowcount
SET @iResult=@iResult+@iRow
IF @iRow>0
begin
print 表：,列:+@columnName+被更新+convert(varchar(10),@iRow)+条记录;
end
fetch next FROM cur1 INTO @columnName


end
close cur1
deallocate cur1

fetch next FROM cur INTO @tableName,@tbID
end
print 共有+convert(varchar(10),@iResult)+条记录被更新!!!

close cur
deallocate cur
SET nocount off

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