Question

I have two tables which look like this:

T1:  T1ID  |  Date  |  Time  | Barcode 
T2:  T2ID  |  Date  |  Time  | Barcode

I basically want to reconcile each record and return T1ID and T2ID so that I know that T1 entry match with T2ID.

Result should be like this:

T1ID | T2ID  | Date  | Time  | Barcode

I have done the reconcile bit but I don’t have any idea abt how do I get T1ID and T2ID in row.

Reconcile Query is below.

SELECT Date,Time,Barcode
FROM
  ( Select Date  ,Time  ,Barcode  from T1 
    union All 
    Select Date, Time , Barcode from T2 ) as Reconcile 

GROUP BY Date  ,Time  ,Barcode 

Having count(Date) > 1 ;

Can anyone point me on the right track?

Answer 1

I don’t think you are looking for a “UNION ALL”. It looks more like a JOIN to me.

• If you only need the records exist in BOTH tables, use INNER JOIN (or just JOIN)
• If you need any record which exists in EITHER tables, use “CROSS OUTER JOIN”
• If you need one of the tables to be “primary table”, use “LEFT” or “RIGHT” OUTER JOIN

Something like this:

SELECT T1ID, T2ID, T1.DATE, T1.DATE, T1.BARCODE
FROM
T1 INNER JOIN T2 ON T1.DATE = T2.DATE AND T1.TIME = T2.TIME AND T1.BARCODE = T2.BARCODE