摘要: SELECT语句 语法格式 //选择字段 SELECT column1, column2, ... FROM table_name; //全表 SELECT * FROM table_name; S1.全表查询 SELECT * FROM test_master S2.选择查询 SELECT id, 阅读全文
posted @ 2019-02-01 23:58 zhen-Android 阅读(861) 评论(0) 推荐(0) 编辑
摘要: DELETE 语法格式 DELETE FROM table_name WHERE condition; S1.常用用法 DELETE FROM test_master WHERE bindNo = 'bn002' S2.清空表 // DELETE DELETE FROM task_mod // TR 阅读全文
posted @ 2019-02-01 23:58 zhen-Android 阅读(1365) 评论(0) 推荐(0) 编辑
摘要: UPDATE 语法格式 UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition; S1.常用更新数据用法 UPDATE test_master SET pwd = 'admin' WHERE id = 阅读全文
posted @ 2019-02-01 23:54 zhen-Android 阅读(922) 评论(0) 推荐(0) 编辑
摘要: INSERT INTO 格式 //通用格式 INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...); //使用默认顺序 INSERT INTO table_name VA 阅读全文
posted @ 2019-02-01 01:01 zhen-Android 阅读(1048) 评论(0) 推荐(0) 编辑