方法一: 使用TOP

SELECT TOP 1 * FROM user;

SELECT TOP 1 * FROM user order by id desc;

方法二: 使用LIMIT

SELECT * FROM user LIMIT 1;

SELECT * FROM user ORDER BY id ASC LIMIT 1;

SELECT * FROM user ORDER BY id DESC LIMIT 1;

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原文：https://blog.csdn.net/diyu122222/article/details/73250982