Question

Postgres 8.4

DELETE
FROM processing_transaction AS pt 
INNER JOIN processing_transaction_movement AS ptm 
ON pt.processing_transaction_id = ptm.processing_transaction_id
LEFT OUTER JOIN test_package tesp ON pt.test_package_id = tesp.test_package_id
LEFT OUTER JOIN test_batch tbat On tesp.test_batch_id = tbat.test_batch_id
WHERE pt.processing_transaction_type = 'TEST';

I get following error:

ERROR: syntax error at >>INNER<<
LINE 1: DELETE FROM processing_transaction AS pt INNER JOIN processi…

Please could you help me to find the error in my SQL-query

---

Thank you for your support @desislavkamenov @jan.
Now I used this:

BEGIN WORK;

DELETE
FROM processing_transaction AS pt
USING processing_transaction_movement AS ptm, test_package tesp, test_batch tbat
WHERE pt.processing_transaction_type = ‘TEST’;
AND pt.processing_transaction_id = ptm.processing_transaction_id
AND pt.test_package_id = tesp.test_package_id
AND tesp.test_batch_id = tbat.test_batch_id

ROLLBACK;

But I need to delete data from two tables (processing_transaction and processing_transaction_movement) , I have looking for somethink like that and found out that I can do it with "ON DELETE CASCADE". But I don´t know how to use this here.
So Please help me again.

Answer 1

You can’t use JOIN in DELETE statement. Instead use USING and put the second table there.
Something like this should work (sorry but i can’t test it, so run it after BEGINing a transaction and check the results if they are what you expect before COMMITting it; ROLLBACK if they aren’t).

DELETE
FROM processing_transaction AS pt 
USING processing_transaction_movement AS ptm, test_package tesp, test_batch tbat 
WHERE pt.processing_transaction_type = 'TEST'
AND pt.processing_transaction_id = ptm.processing_transaction_id
AND pt.test_package_id = tesp.test_package_id
AND tesp.test_batch_id = tbat.test_batch_id

Here is a link to the documentation.
http://www.postgresql.org/docs/current/static/sql-delete.html