Question

I am getting data from two different table sources. What is the best way to combine them into one?

For example:

table one has the following columns:

date | time | exchange 

table two has the following columns:

date | time | price | position

I want to combine them so I can create a table that has:

date | time | exchange | position | price

Sometimes position and exchange columns are empty. What is the best way to create this new table?

Answer 1

I would recommend further reading into SQL JOINs. SQL Joins

Then read up on how Views represent data from multiple tables: What is a View in Oracle?

Then read up on how SQL UNION combines results from multiple tables: http://www.orafaq.com/wiki/Union

Read up on Creating a table from a select: http://www.techonthenet.com/sql/tables/create_table2.php

Understand materialized Views: http://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_6002.htm

This just scratches the surface. All of these will solve your requirement with various benefits and draw backs.