内连接<inner join>,左外连接<left outer join>,右外连接<right outer join>

内连接<inner join>：

《略》

左外连接<left outer join>：

sql语句：

《写法一》：

select t1.id,t2.djbid from t_ldrk_djb t1 left outer join t_jzzyw_yx t2on t1.id = t2.djbid

《写法二》：

select t1.id,t2.djbid from t_ldrk_djb t1,t_jzzyw_yx t2 where t1.id = t2.djbid(+)

效果截图：



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右外连接<right outer join>：

select t1.id,t2.djbid

from t_ldrk_djb t1 right outer join t_jzzyw_yx t2 on t1.id = t2.djbid

或

select t1.id,t2.djbid from t_ldrk_djb t1,t_jzzyw_yx t2 where t1.id(+) = t2.djbid

效果截图：