We help IT Professionals succeed at work.

TSQL Syntax

mpdillon
mpdillon asked
on
I need to delete row in table A (Price Code File, OEPRCFIL)when there is not a match in Table B (Item Master file, IMItmIdx). The field in OEPrcFil that contains the item number is Filler_0001. If Filler_0001 ONLY contained the item number, the TSL would be:

(I will first build a Select rather than a Delete and verify the records)

Select Filler_0001 From OEPrcFil
WHere Filler_0001 Not in (Select Item_No from IMItmIdx)

The above works with the provision that Filler_0001 contains only the Item number. The problem I have is that the Filler_0001 contains data in addition to the Item Number. Specifically, Filler_0001 contains the Vendor Number with the Item Number concatonated onto the end, e.g.  VENDORNOITEMNO = ACMEPRODUCTA or GIANTPRODUCTA.

As you can see the Vendor Number that prepends the Item Number is not a fixed length. Since it is not a fixed length, that preludes identifying the Item Number with Substring.

I need some sort of pattern matching. I have looked at CHARINDEX and PATINDEX but I was not successful in using a SELECT inside those functions.

I am using SQL 2000.

What TSQL syntax would I use to select all the OEPrdFil Records that do not have an item number match in the Item Master table?

Thanks,
pat
Comment
Watch Question

Commented:
This is not 100% logically correct, but perhaps it will steer you in a different direction.

Select Filler_0001 From OEPrcFil o, IMItmIdx m
where m.item_no as varchar(10) =   right(o.filler_0001,len(m.item_no)


What is the datatype of item_no?
do you also have a vendor table that would help construct the vendorproduct key.

Author

Commented:
dqmq,

Great. With some modifications plus information I didn't share (didn't want to confuse you), I was able to solve the problem.

Yes, there is a Customer Master table. It was the "From OEPrcFil o, IMItmIdx M" that I was not familiar with.

Here is my solution

Select * from OEPrcFil_SQL
Where Cd_Tp = 1
and Ltrim(Rtrim(Filler_0001))
not in (Select ltrim(Rtrim(C.Cus_No))+ltrim(Rtrim(I.Item_No))
From IMItmIDX_SQL I, ARCusFil_SQL C)

The Delete query looks like:

Delete from OEPrcFil_SQL
Where Cd_Tp = 1
and Ltrim(Rtrim(Filler_0001))
not in (Select ltrim(Rtrim(C.Cus_No))+ltrim(Rtrim(I.Item_No))
From IMItmIDX_SQL I, ARCusFil_SQL C)


The SELECT is very slow (execution time > 1min) but I only have to do this twice so we will just live with it.

Thank you for your assistance.
pat

Explore More ContentExplore courses, solutions, and other research materials related to this topic.