Finding results from different tables

Hello,
I am makeing a query on 2 tables. It works. But I need to find out which result is coming from which table. e.g 1 table is having abc record and 2nd table is having xyz record. I need to find out that abc has come from 1 table and xyz has come from 2nd table. Is it possible? If yes, Please give me a sample code snippet.
Thanks

Well one way that I can think of other than duplicating every column is to add one additional column to your select such as a.table1 then only populate the a.table1 column if the data came from the first table (any dba can help you with that since it is database specific). Then you just check for a null in the column in the resultset and will know which table it came from (null = came from table 2, !null = came from table1). Does not matter what data you stick in there as long as it comes from a not null column you should be golden

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