abstract：約定關(guān)鍵字統(tǒng)一用大寫1、增加數(shù)據(jù)用INSERT INTOINSERT INTO `user` (`name`, `sex`, `age`, `email`, `password`, `status`, `create_time`)VALUES ('碧瑤', '1', '22', 'by@php.cn', sha1('12345

約定關(guān)鍵字統(tǒng)一用大寫

1、增加數(shù)據(jù)用INSERT INTO

INSERT INTO `user` (`name`, `sex`, `age`, `email`, `password`, `status`, `create_time`)
VALUES ('碧瑤', '1', '22', 'by@php.cn', sha1('123456'), '1', '12124233');

2、刪除數(shù)據(jù) DELETE

DELETE FROM `user` WHERE ((`id` = '1'));

3、修改數(shù)據(jù) UPDATE

UPDATE `user` SET `age` = '16' WHERE `id` = '2';

4、查詢數(shù)據(jù) SELECT

SELECT * FROM `user`;

5、刪除主鍵 alter table

這個(gè)還不太了解，課后補(bǔ)習(xí)

Correcting teacher：天蓬老師Correction time：2018-12-16 16:07:21
Teacher's summary：表格的編輯功能,用得不多, 等用到的時(shí)候,再看也不遲, 實(shí)際開發(fā)中, 很多針對(duì)表的操作,都會(huì)有專門的可視化數(shù)據(jù)庫(kù)軟件解決,不必寫語(yǔ)句的,只要把一些常用的curd語(yǔ)句掌握就可以