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Mysql语法:
INSERT INTO 表名 (字段)
SELECT 字段 FROM 表名 WHERE 条件;
如果要修改其中某一个字段,在查询语句中:x(要改变的值) as 字段名。
eg:
INSERT INTO table ( `a`, `b`, `c` )
SELECT `a`, `b`, 2 AS c FROM table WHERE a = 1;