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[英]How can I use 'Check' statement to validate field value in mysql?
[英]How can I use the value of a variable in an IN statement?
例子:
SET @numbers:= '1,2,3,4,5,6';
SELECT * FROM table WHERE t.number in (@numbers);
UPDATE table SET name = 'test' WHERE t.number in (@numbers);
如何在 IN 語句中使用變量的值? 如上面的請求
您不能在這樣的 CSV 字符串上使用IN
。
但是您可以將它與FIND_IN_SET
一起使用
SET @numbers:= '1,2,3,4,5,6';
UPDATE your_table t
SET name = 'test'
WHERE FIND_IN_SET(t.number, @numbers) != 0;
SELECT *
FROM your_table t
WHERE FIND_IN_SET(t.number, @numbers) != 0;
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