随笔分类 -  SQL

sql
摘要：SQL语句练习 SELECT * FROM test; SELECT * FROM testdemo; DROP TABLE IF EXISTS `demo`; CREATE TABLE `demo`( `id` CHAR(10) NOT NULL DEFAULT '' COMMENT 'ID', 阅读全文
posted @ 2020-06-24 17:47 seafwg 阅读(215) 评论(0) 推荐(0)