MySQL之inner join、left join、right join、limit
一、創建兩個表 如圖： emp表 dept表 二、inner join 、left join、right join實例 1.inner join（等值連接）只返回兩個表中聯結字段相等的行 例子1：e,d分別爲emp，dept的別名（如果表名過長，方便使用） 例子2： SELECT * FROM emp e INNER JOIN dept d ON e.deptno = d.deptno; 等價於
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相關文章
- 1. MySQL之inner join、left join、right join、limit
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