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今天mybatise 执行mysql delete 的时候，报错了，从"u where u.id = 1"开始报的错

delete from user u where u.id = 1;//这是错误的delete语句

delete后把要删除的表别名加上就行：

delete u from user u where u.id = 1;//这是正确的delete语句

这里搜了下，原来是delete中表的别名使用问题，以下是转载内容：

转载自：https://blog.csdn.net/chs_jdmdr/article/details/46708917

语法：

delete <alias> from <table> <alias> where <alias>.<field>...

别名必需在 delete之后出一次。

多表间删除语法：

DELETE t1, t2 FROM t1 INNER JOIN t2 INNER JOIN t3
WHERE t1.id=t2.id AND t2.id=t3.id;

Or:

DELETE FROM t1, t2 USING t1 INNER JOIN t2 INNER JOIN t3
WHERE t1.id=t2.id AND t2.id=t3.id;

LEFT JOIN:

DELETE t1 FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.id IS NULL;