SQL 语句快速参考

【文件属性】：

文件名称：SQL 语句快速参考

文件大小：49KB

文件格式：DOC

更新时间：2012-11-02 10:30:04

SQL 语句快速参考

SQL 语句快速参考 AND / OR SELECT column_name(s) FROM table_name WHERE condition AND|OR condition ALTER TABLE (add column) ALTER TABLE table_name ADD column_name datatype ALTER TABLE (drop column) ALTER TABLE table_name DROP COLUMN column_name AS (alias for column) SELECT column_name AS column_alias FROM table_name AS (alias for table) SELECT column_name FROM table_name AS table_alias