SQL Query - Trigger for Insert/Update/Delete with condition

Hello experts,

I have 3 databases that are identical.  When a user add in something to DB1, I want it to replicate to the other 2 databases.  The current trigger works, but I want to add in a condition.  If the item is a purchased part, I don't want it to replicate to DB3.  See code below.  It is working as current, except it doesn't ignore replicate to DB3 if purchased = 'Y'.

CREATE TRIGGER [INSERT_UPDATE_DELETE] ON [dbo].[PART]
FOR INSERT, UPDATE, DELETE
AS

DECLARE @D INT, @I INT

SELECT @D = COUNT(*) FROM DELETED
SELECT @I = COUNT(*) FROM INSERTED

IF @I = 0
BEGIN
DELETE FROM DB2.DBO.PART WHERE ID IN (SELECT ID FROM DELETED)
DELETE FROM DB3.DBO.PART WHERE ID IN (SELECT ID FROM DELETED)
END


--DATABASE 2
IF @D = 0
BEGIN
INSERT INTO DB2.DBO.PART(
		ID, DESCRIPTION, PURCHASED, FABRICATED
		)
SELECT	ID, DESCRIPTION, PURCHASED, FABRICATED
FROM	INSERTED
END

IF @D > 0 AND @I > 0
BEGIN
UPDATE  DB2.DBO.PART
SET		DESCRIPTION = I.DESCRIPTION, 
		PURCHASED = I.PURCHASED,
		FABRICATED = I.FABRICATED
FROM	DB2.DBO.PART P INNER JOIN INSERTED I ON P.ID = I.ID

--DATABASE 3, WILL ONLY INSERT IF PURCHASED IS SET 'Y'
IF @D = 0
BEGIN
INSERT INTO DB3.DBO.PART(
		ID, DESCRIPTION, PURCHASED, FABRICATED
		)
SELECT	ID, DESCRIPTION, PURCHASED, FABRICATED
FROM	INSERTED
END

IF @D > 0 AND @I > 0
BEGIN
UPDATE	DB3.DBO.PART
SET		DESCRIPTION = I.DESCRIPTION, 
		PURCHASED = I.PURCHASED,
		FABRICATED = I.FABRICATED
FROM	DB3.DBO.PART P INNER JOIN INSERTED I ON P.ID = I.ID
END

Open in new window

holemaniaAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Eric3141Commented:
Try this.  You'll likely want to put the DECLARE at the top of the trigger:


DECLARE
   @Purchased      char(1);

--DATABASE 3, WILL ONLY INSERT IF PURCHASED IS SET 'Y'

SELECT @Purchased = Purchased FROM INSERTED;

IF @D = 0 AND @Purchased = 'Y'
BEGIN
   INSERT INTO DB3.DBO.PART(
      ID,
      DESCRIPTION,
      PURCHASED,
      FABRICATED)
   SELECT      
      ID,
      DESCRIPTION,
      PURCHASED,
      FABRICATED
   FROM      INSERTED
END
0
HainKurtSr. System AnalystCommented:
add a where condition to select part

--DATABASE 2
IF @D = 0
BEGIN
INSERT INTO DB2.DBO.PART(
            ID, DESCRIPTION, PURCHASED, FABRICATED
            )
SELECT      ID, DESCRIPTION, PURCHASED, FABRICATED
FROM      INSERTED
WHERE PURCHASED = 'Y'
END
0
HainKurtSr. System AnalystCommented:
sorry wrong part, add condition to db3 part

--DATABASE 3, WILL ONLY INSERT IF PURCHASED IS SET 'Y'
IF @D = 0
BEGIN
INSERT INTO DB3.DBO.PART(
            ID, DESCRIPTION, PURCHASED, FABRICATED
            )
SELECT      ID, DESCRIPTION, PURCHASED, FABRICATED
FROM      INSERTED
WHERE PURCHASED = 'Y'
END
0
Acronis True Image 2019 just released!

Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

Eric3141Commented:
Ack... you said you wanted to IGNORE if purchased = 'Y'.  Revised code below:

DECLARE
   @Purchased      char(1);

--DATABASE 3, WILL ONLY INSERT IF PURCHASED IS SET 'Y'

SELECT @Purchased = Purchased FROM INSERTED;

IF @D = 0 AND @Purchased <> 'Y'
BEGIN
   INSERT INTO DB3.DBO.PART(
      ID,
      DESCRIPTION,
      PURCHASED,
      FABRICATED)
   SELECT      
      ID,
      DESCRIPTION,
      PURCHASED,
      FABRICATED
   FROM      INSERTED
END
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
holemaniaAuthor Commented:
Thank you.  My bad with the typo in regard to the purchase.  It's basically the same thing but it's fabricated items that I don't want to insert into DB3.  Only insert if Purchased items = "Y".  The example worked!!!  Thanks again.
0
Eric3141Commented:
You're welcome.  :)
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Query Syntax

From novice to tech pro — start learning today.