使用Mysql中的id从表中删除许多行

Question

I am a Linux admin with only basic knowledge in Mysql Queries

I want to delete many table entries which are ip address from my table using id ,

currently i am using

DELETE from tablename where id=1;
DELETE from tablename where id=2;

but i have to delete 254 entries,so this method is going to take hours,how can i tell mysql to delete rows that i specify,coz i want to skip deleting some entries out of this 254.

Deleting whole table and importing needed entries is not an option.

Answer 1

The best way is to use IN statement :

DELETE from tablename WHERE id IN (1,2,3,...,254);

You can also use BETWEEN if you have consecutive IDs :

DELETE from tablename WHERE id BETWEEN 1 AND 254;

You can of course limit for some IDs using other WHERE clause :

DELETE from tablename WHERE id BETWEEN 1 AND 254 AND id<>10;

Answer 2

how about using IN

DELETE FROM tableName
WHERE ID IN (1,2) -- add as many ID as you want.

Answer 3

Something like this might make it a bit easier, you could obviously use a script to generate this, or even excel

DELETE FROM tablename WHERE id IN (
1,
2,
3,
4,
5,
6
);

Answer 4

if you need to keep only a few rows, consider

DELETE FROM tablename WHERE id NOT IN (5,124,221);

This will keep only some records and discard others.

Answer 5

Use IN Clause

   DELETE from tablename where id IN (1,2);

OR you can merge the use of BETWEEN and NOT IN to decrease the numbers you have to mention.

DELETE from tablename 
where (id BETWEEN 1 AND 255) 
AND (id NOT IN (254));

Answer 6

Others have suggested IN , this is fine. You can also use a range:

DELETE from tablename where id<254 and id>3;

If the ids to delete are contiguous.

Answer 7

If you have some 'condition' in your data to figure out the 254 ids, you could use:

delete from tablename
where id in 
(select id from tablename where <your-condition>)

or simply:

delete from tablename where <your-condition>

Simply hard coding the 254 values of id column would be very tough in any case.

Answer 8

DELETE FROM table_name WHERE id BETWEEN 1 AND 256;

试试这个。

Answer 9

Hope it helps:

DELETE FROM tablename 
WHERE tablename.id = ANY (SELECT id FROM tablename WHERE id = id);