91、mysql批量刪除表
阿新 • • 發佈：2021-11-22
## 儲存過程實現
drop PROCEDURE if EXISTS rush;
create PROCEDURE rush()
BEGIN
## 建立臨時表，插入快照資料
drop table if exists drop_tb;
create TEMPORARY table drop_tb(
rowNum int not null,
table_name VARCHAR(50) not null
);
insert into drop_tb
select @r := @r + 1 as rowNum,
table_name
from information_schema.TABLES as a,(select @r := 0 )as t
where table_schema = (select DATABASE())
and table_name like 'c%' ##這個地方填寫以什麼開頭的資料
order by a.table_name ;
## 儲存過程實現
drop PROCEDURE if EXISTS rush;
create PROCEDURE rush()
BEGIN
## 建立臨時表，插入快照資料
drop table if exists drop_tb;
create TEMPORARY table drop_tb(
rowNum int not null,
table_name VARCHAR(50) not null
);
insert into drop_tb
select @r := @r + 1 as rowNum,
table_name
from information_schema.TABLES as a,(select @r := 0 )as t
where table_schema = (select DATABASE())
and table_name like 'c%' ##這個地方填寫以什麼開頭的資料
order by a.table_name ;
## 變數設定
set @index = 0;
set @count = (select count(0) from drop_tb) ;
## 遍歷刪除字首為 aopi_copy 的表
WHILE @index < @count DO
set @index = @index + 1 ;
set @tb_name = (
select table_name from drop_tb as ibn
where ibn.rowNum = @index
) ;
set @drop_sql_tax = concat('drop table if exists ',@tb_name);
PREPARE distSQL FROM @drop_sql_tax ;
EXECUTE distSQL;
DEALLOCATE PREPARE distSQL ;
END WHILE;
drop table drop_tb;
end ;
call rush();
drop PROCEDURE if exists rush;
## THE END
## 變數設定
set @index = 0;
set @count = (select count(0) from drop_tb) ;
## 遍歷刪除字首為 aopi_copy 的表
WHILE @index < @count DO
set @index = @index + 1 ;
set @tb_name = (
select table_name from drop_tb as ibn
where ibn.rowNum = @index
) ;
set @drop_sql_tax = concat('drop table if exists ',@tb_name);
PREPARE distSQL FROM @drop_sql_tax ;
EXECUTE distSQL;
DEALLOCATE PREPARE distSQL ;
END WHILE;
drop table drop_tb;
end ;
call rush();
drop PROCEDURE if exists rush;
## THE END