search:update set case when相關網頁資料

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日期:2025-04-26
Update YourTable SET age=( CASE WHEN CAST(age AS INT) < 18 THEN NULL ELSE age END), salary=( CASE WHEN ......
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日期:2025-04-24
現在有一個問題:比如一次購買了多個東西,需要把這些產品ID存在購物單的1個欄位裡,那麼這就需要用特别符號來分開這些產品ID(比如:111,222,333,444)。在進行 ......
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日期:2025-04-28
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日期:2025-04-22
... UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING. Applies ......
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日期:2025-04-23
UPDATE `table` SET `uid` = CASE WHEN id = 1 THEN 2952 WHEN id = 2 THEN 4925 WHEN id = 3 THEN 1592 END. Lo and behold, the ......
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日期:2025-04-24
UPDATE ACCOUNT SET ACCOUNT_STATUS = CASE WHEN ACCOUNT_STATUS = '004460721' THEN 5 WHEN ACCOUNT_STATUS ......
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日期:2025-04-25
Simple CASE expression: CASE input_expression WHEN when_expression .... the CASE expression in an UPDATE statement to determine the value that is set  ......
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日期:2025-04-23
Each SELECT in the UNION returns a distinct result set. You can see ... SUM( CASE mnth WHEN 1 THEN sales ELSE NULL END) AS jan, SUM(CASE mnth ......