first问题
数据库:informix9.3问题:如何用sql实现(排除其他编程方法)
update table set col = 'aa' where col in (select first 10 col from table) first 不能用于子查询,所以你的问题无答案。 select first 10 col from table into temp aaa with no log;
update table set col = 'aa' where col in (select col from aaa);
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