INSERT 插入数据
insert 语法一:
INSERT [INTO] table_name [(column_name)] {VALUES|VALUE}
insert 语法二:
INSERT [INTO] tbl_name SET col_name={expr|DEFAULT}
SELECT 查询数据
SELECT * FROM tab_name [WHERE];
UPDATE 更新数据
UPDATE tb_name SET col_name1={expr1|DEFAULT} [ WHERE ]
delete 删除 语法:
DELETE FROM tbl_name WHERE where_conditon;