-- 索引 index
create index idx_sname on student( sname(4));
alter table teacher add index idx_tname(tname);
drop index idx_sname on student;
-- 檢視 view
create view v_stu
asselect sname,degree from student s, score sc
where s.sno=sc.sno;
select * from v_stu;
-- 儲存過程 procedure
-- 建立 insert procedure
drop procedure if exists `p_insert_student`;
create procedure p_insert_student(
in xueh varchar(3),
in xingm varchar(4),
in xingb varchar(2),
in shengr datetime,
in banj varchar(5)
begin
set @xueh = xueh;
set @xingm = xingm;
set @xingb = xingb;
set @shengr = shengr;
set @banj = banj;
set @insertsql = concat('insert into student values(?,?,?,?,?)');
prepare stmtinsert from @insertsql;
execute stmtinsert using @xueh,@xingm,@xingb,@shengr,@banj;
deallocate prepare stmtinsert;
end;
-- 儲存過程呼叫
call p_insert_student(412,'黃一','女','1990-12-01 10:20:01','304');
call p_insert_student(413,'黃二','男','1992-12-01 10:20:01','304');
call p_insert_student(414,'黃三','男','1993-12-01 10:20:01','304');
call p_insert_student(416,'黃五','女','1992-02-01 10:20:01','304');
-- 結果驗證
select * from student;
-- 建立儲存過程 查詢
drop procedure if exists `pro_get_info`;
create procedure pro_get_info(
in ckh varchar(5)
begin
set @ckh=ckh;
set @selectsql = concat('select s.*,cno,degree from student s,score sc
where s.sno=sc.sno and cno=?');
prepare stmtselect from @selectsql;
execute stmtselect using @ckh;
deallocate prepare stmtselect;
end;
call pro_get_info('3-105');
call pro_get_info('3-245');
-- 觸發器 trigger
-- 建立 insert trigger
drop trigger if exists `t_insert_score`;
create trigger t_insert_score after insert on student for each row
begin
declare sno varchar(3) ;
declare cno varchar(35) ;
declare degree decimal(10) ;
insert into score values(111,'3-105','99');
end;
-- 結果驗證
select * from score;
# 批量造資料，插入資料庫
#建立測試表
drop table if exists test.test;
create table test.test(
id int(10) not null auto_increment,
a int(10) not null,
b int(10) not null,
c int(10) not null,
primary key (`id`)
)engine innodb default charset utf8 comment '測試表';
#清空資料
truncate table test.test;
#定義儲存過程
delimiter //
drop procedure if exists insert_test_val;
##num_limit 要插入資料的數量,rand_limit 最大隨機的數值
create procedure insert_test_val(
in num_limit int,
in rand_limit int)
begin
declare i int default 1;
declare a int default 1;
declare b int default 1;
declare c int default 1;
while i<=num_limit do
set a = floor(rand()*rand_limit);
set b = floor(rand()*rand_limit);
set c = floor(rand()*rand_limit);
insert into test.test values (null,a,b,c);
set i = i + 1;
end while;
end#呼叫儲存過程
call insert_test_val(1000,10);
drop procedure if exists mytest; --判斷程序是否存在，存在則刪除
create procedure mytest() --建立儲存過程
begin
declare i int;
declare j varchar(200);
set i = 2;
while i < 11 do --迴圈體
set j=concat('wwq',i); --拼接字串
insert into pub_user(`id`, `name`, `account`, `password`, `user_code`)
values (i, '王馨', j, 'e10adc3949ba59abbe56e057f20f883e', '');
insert into pub_user_post (`post_code`, `user_code`)
values (i, 'a685187d29af4ad793f2753dc17c1435');
values ('95ac32c8b9874b4085a01187c341067b', i, 'inspur-dzzw-tysp');
set i=i+1;
end while;
end --結束定義語句
call mytest(); --呼叫儲存過程
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