I am trying to get table name in query result. The query I am trying to do involves multiple table. This is why I am trying to get a column with result which will indicate from which table the data taken from. Here is the code I am using
(SELECT DISTINCT column_1 as keywords from table_1) UNION ALL (SELECT DISTINCT column_2 as keywords from table_2) 1 Answer
Use this:
SELECT DISTINCT column_1 AS keywords, 'table_1' AS tablename FROM table_1 UNION ALL SELECT DISTINCT column_2 AS keywords, 'table_2' AS tablename FROM table_2 It adds one more column tablename to result set, which contains originating table name.
