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  • mysql高级

    BEFORE INSERT,BEFORE DELETE,BEFORE UPDATE
    AFTER INSERT,AFTER DELETE,AFTER UPDATE


    创建触发器
    mysql> create table log(id int primary key auto_increment not null,
    -> time datetime);

    mysql> delimiter ||
    mysql> create trigger demo after update
    -> on student for each row
    -> begin
    -> insert into log values(now());
    -> end
    -> ||

    创建存储过程
    mysql> delimiter ||
    mysql> create procedure delete_stu(in stuid int)
    -> begin
    -> delete from student where id = stuid
    -> ;
    -> end
    -> ||
    Query OK, 0 rows affected (0.29 sec)

    mysql> delimiter;


    mysql> create view v_stu(vid, vname) as select id, name from student;
    Query OK, 0 rows affected (0.00 sec)

    mysql> select * from v_stu;


    // 查看表中索引
    mysql> show index from student;

    // 创建索引
    mysql> create index stu_index on student(index);

    // 删除索引
    mysql> drop index stu_index on student;

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  • 原文地址:https://www.cnblogs.com/ldsice/p/11106421.html
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