I\'m trying to detect whether an image exists on a remote server. However, I\'ve tried several methods and can\'t get any of them to work.
I use this for checking an existing emailId in my table and inserting it...It works fine how to show message to user when he tries to register with an existing mailId....
I am trying to set up a MySQL trigger that does the following: When someone inserts data into databaseA.bills, it ve开发者_如何学运维rifies if databaseB.bills already has that row, if it doesn\'t, t
What do you think , does the Stored Procedure always return 1 ? I am concerned about the 开发者_JS百科if exists(..)
I\'m looking for a way to find 开发者_Python百科if element referenced in javascript has been inserted in the document.
is there a way to write this same SQL atomic instruction using Entities and LinQ? IF EXISTS (SELECT * FROM MyTable WHERE ID = @Id)
I need to get dummy values if they do no rows returned from table. The If exists works by itself, but gives error with a Union. Can someone please guide me with a solution or a workaround?
I need to read an xml instance from an exist db. I am attempting to connect chiba to a restful web service via the following command:
Currently my controller lets a user submit muliple \"links\" at a time.It collects them into an array, creates them for that user, but catches any errors for the User to go back and fix. How can I ign
Let\'s assume I have a table magazine: CREATE TABLE magazin开发者_Python百科e ( magazine_id integer NOT NULL DEFAULT nextval((\'public.magazine_magazine_id_seq\'::text)::regclass),
加载中,请稍侯......