傳入資料庫名 以id為主鍵
create definer=`root`@`localhost` procedure `newproc`(in `dataname` varchar(50))
begin
declare taname varchar(50) default '';
declare `@sql2` varchar(2048) default '';
declare countnum int default 0;
declare i int default 1;
declare hasprimarynum int default 0;
drop temporary table if exists tablename;
create temporary table tablename(id int primary key not null auto_increment,tablenames varchar(50));
#select databasesname;
#查詢資料庫所有表名
select dataname;
insert tablename(tablenames) select table_name from information_schema.tables where table_schema = dataname;
set countnum = found_rows();
select *,countnum from tablename;
#select countnum;
#迴圈獲取表名
while i <= countnum do
select tablenames into taname from tablename where id = i;
select taname;
#判斷表是否有主鍵
select count(*) from information_schema.`key_column_usage` where table_name='classes' and constraint_name='primary' and constraint_schema=dataname;
select hasprimarynum;
if hasprimarynum < 1 then
#沒有主鍵
#新增主鍵 自增 id 自己選擇合適的
set @sqlstr = concat("alter table ",`taname`," change id id int not null auto_increment primary key");
prepare stmt from @sqlstr;
execute stmt;
set @sqlstr='';
end if;
set i = i + 1;
end while;
end
mysql 儲存過程建立多個表
要建立64個表，聽到這一需求，必然要用儲存過程。直接上 delimiter use table drop procedure if exists p create definer root localhost procedure p begin declare i int declare table...
MySQL新增儲存過程
1.mysql的儲存過程與sqlserver是不同的。而且mysql相對比較輕量化，在寫的過程中，對函式與儲存過程的區分不是特別明顯。標準語法結構 delimiter 或 delimiter 這個地方沒別的意思，就是重新定義結束標識。將 變成了 begin delete from matches w...
mysql儲存過程表 mysql儲存過程和表命令
show procedure status 2.顯示某個儲存過程的詳細資訊 sp為儲存過程名稱 show create procedure sp 3.顯示當前庫中所有表 show tables 4.顯示某個表的建表語句 test為表名 show create table test 5.刪除儲存過程 ...