2018年1月2日
What does a (+) sign mean in an Oracle SQL WHERE clause?
摘要： This is an Oracle-specific notation for an outer join. It means that it will include all rows from t1, and use NULLS in the t0 columns if there is no 阅读全文
posted @ 2018-01-02 15:21 kakaisgood 阅读(144) 评论(0) 推荐(0)