Delete with "Join" in Oracle sql Query

arjacsoh picture arjacsoh · Oct 1, 2012 · Viewed 130k times · Source

I am not deeply acquainted with Oracle Sql Queries, therefore I face a problem on deleting some rows from a table which must fulfill a constraint which includes fields of another (joining) table. In other words I want to write a query to delete rows including JOIN.

In my case I have a table ProductFilters and another table Products joined on fields ProductFilters.productID = Products.ID. I want to delete the rows from ProductFilters having an ID higher or equal to 200 and the product they refer has the name 'Mark' (name is a field in Product).

I would like to be informed initially if JOIN is acceptable in a Delete Query in Oracle. If not how should I modify this Query in order to make it work, since on that form I receive an error:

DELETE From PRODUCTFILTERS pf 
where pf.id>=200 
And pf.rowid in 
(
     Select rowid from PRODUCTFILTERS 
     inner join PRODUCTS on PRODUCTFILTERS.PRODUCTID = PRODUCTS.ID 
     And PRODUCTS.NAME= 'Mark'
);       

Answer

xlogic picture xlogic · Oct 21, 2015

Recently I learned of the following syntax:

DELETE (SELECT *
        FROM productfilters pf
        INNER JOIN product pr
            ON pf.productid = pr.id
        WHERE pf.id >= 200
            AND pr.NAME = 'MARK')

I think it looks much cleaner then other proposed code.