如何循环遍历一组记录select陈述?
假设我有一些记录,我希望循环遍历并对每条记录执行一些操作。这是我的原始版本select陈述:
select top 1000 * from dbo.table
where StatusID = 7
通过使用 T-SQL 和游标,如下所示:
DECLARE @MyCursor CURSOR;
DECLARE @MyField YourFieldDataType;
BEGIN
SET @MyCursor = CURSOR FOR
select top 1000 YourField from dbo.table
where StatusID = 7
OPEN @MyCursor
FETCH NEXT FROM @MyCursor
INTO @MyField
WHILE @@FETCH_STATUS = 0
BEGIN
/*
YOUR ALGORITHM GOES HERE
*/
FETCH NEXT FROM @MyCursor
INTO @MyField
END;
CLOSE @MyCursor ;
DEALLOCATE @MyCursor;
END;
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