Query for mysql server

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How to clear all the data from 10 or maore tables by using single query in mysql?

Thank u in adv...

Posted 1-Aug-11 1:44am

kishore1215

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Abhinav S · Answer 1 · 2011-08-01T01:46:00

Solution 1

You could try select * from table where 1 = 2

Posted 1-Aug-11 1:46am

Abhinav S

Updated 1-Aug-11 2:07am

v2

Comments

Toniyo Jackson 1-Aug-11 7:51am

Without table name?

kishore1215 1-Aug-11 8:00am

no,i have 5 or 6 tables in my db,i need to delete the data from those tables,not tables.

kishore1215 1-Aug-11 8:06am

if it is possible,it can..without mentioning tha table names..all tables which are present in database..

Abhinav S 1-Aug-11 8:08am

Fixed that.
However, I think OP was looking for something else.

Toniyo Jackson 1-Aug-11 8:15am

Yeah. Check my answer :)

kishore1215 1-Aug-11 8:23am

where is ur answer?

Toniyo Jackson 1-Aug-11 8:25am

Check Solution 2.

kishore1215 1-Aug-11 8:30am

no i need query only....

kishore1215 1-Aug-11 8:30am

not sp..

kishore1215 1-Aug-11 7:59am

no,i have 5 or 6 tables in my db,i need to delete the data from those tables,not tables.

Abhinav S 1-Aug-11 8:10am

You could try delete from table1;delete from table2; all in one line.

However, it would be much better to go with a stored procedure.

kishore1215 1-Aug-11 8:13am

sorry..

kishore1215 1-Aug-11 8:15am

i need to clear all my tables from my db?

kishore1215 1-Aug-11 8:17am

i have 300 tables how it posible with sp?

Toniyo Jackson · Answer 2 · 2011-08-01T02:14:00

Solution 2

Try this together.

EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL'
EXEC sp_MSForEachTable 'DELETE FROM ?'
EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL'

More info here[^].

Posted 1-Aug-11 2:14am

Toniyo Jackson

Comments

Abhinav S 1-Aug-11 9:52am

My 5.

thatraja · Answer 3 · 2011-08-01T14:11:00

Solution 4

Here you go....more than couple of ways

MySQL Empty Database / Delete or Drop All Tables[^]
MySQL: Easily delete all data and reseed all tables[^]
Delete data from all tables in MYSQL[^]
How to Truncate All or Some of the Tables in a MySQL Database[^]

Posted 1-Aug-11 14:11pm

thatraja