left outer join
摘要：
tableA:Field_K,Field_A1a3b4ctableB:Field_K,Field_B1x2y4zselecta.Field_K,a.Field_A,b.Field_K,b.Field_Bfromaleft outer joinbona.Field_K=b.Field_KField_K... 阅读全文
posted @ 2014-08-27 15:42 a_badegg 阅读(162) 评论(0) 推荐(0) 编辑
