摘要: NO 问题点 Oracle PostgreSQL 1 DUAL SELECT 1+1 FROM DUAL SELECT 1+1 或者 CREATE VIEW dual AS SELECT 'X'::VARCHAR(1) AS DUMMY 再 SELECT 1+1 FROM DUAL 2 NEXTVA 阅读全文
posted @ 2009-01-14 10:00 sekihin 阅读(12959) 评论(0) 推荐(1) 编辑