find column names and table names referenced in SQL

Question

How to find all the tables and column names used in a SQL? It is on ORACLE database. Below is an SQL example.

SELECT 
   A.ENAME,
   A.AGE as EMP_AGE,
   B         


        

Answer 1

If you can convert your query into VIEW and then use INFORMATION_SCHEMA.VIEW_COLUMN_USAGE

Here is an example:

let's say your view name is ABC

then use this one

SELECT VIEW_NAME, TABLE_NAME, COLUMN_NAME  
FROM    INFORMATION_SCHEMA.VIEW_COLUMN_USAGE 
WHERE   VIEW_NAME = 'ABC'

Let me know if it works..