题解 | UPDATE用法
将所有to_date为9999-01-01的全部更新为NULL
https://www.nowcoder.com/practice/859f28f43496404886a77600ea68ef59
UPDATE titles_test SET to_date=NULL,from_date='2001-01-01' WHERE to_date='9999-01-01'
将所有to_date为9999-01-01的全部更新为NULL
https://www.nowcoder.com/practice/859f28f43496404886a77600ea68ef59
UPDATE titles_test SET to_date=NULL,from_date='2001-01-01' WHERE to_date='9999-01-01'
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