I encountered an Oracle function that is new to me. It is used in a where clause/join definition: 
FROM T_NIS A, T_MEMBERS B
WHERE A.F_POSTCODE(+) = REPLACE(B.F_POSCOD, ' ')
This REPLACE -- what does it do? Is it similar to NVL?

    Requires Free Membership to View

    Login

REPLACE function replaces the occurrence of a sub-string in a string with a specified second sub-string. In the event the second sub-string is not specified, then it removes the occurrence of the first sub-string.

In your example all white spaces will be removed from the valid in B.F_POSCOD column before the equality is verified.

This was first published in June 2004

Join the conversationComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.
    Back to top