Link to home
Start Free TrialLog in
Avatar of Steve Jennings
Steve Jennings

asked on

How to join/merge/union 2 tables so that new rows from one will be available in the other

I have a table of devices:

NET_TABLE: vendor - model - location - name - contract - owner (plus about 30 more columns)

The ops team copies that table removes some columns and creates more columns:

OPS_TABLE: vendor - model - location - name - notes - engineer - customer (plus about 40 more columns)

Whenever I add a new device (row) the ops team has to copy the new table and go thru a cumbersome process to keep their data.

This seems really inefficient. I don't really want to populate my table with their columns.

I'm thinking there must be a way to "union" or "join" my table with their table to pick up only new "vendor - model - location - name" rows, but I can't figure out the syntax to do it.

"union" seems to want a matching number of columns, and "join" seems only to find commonalities.

I can't seem to wrap my head around how to solve this, but it seems like a really simple problem.

SteveJ
ASKER CERTIFIED SOLUTION
Avatar of Chris Stanyon
Chris Stanyon
Flag of United Kingdom of Great Britain and Northern Ireland image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of Steve Jennings
Steve Jennings

ASKER

Thanks Chris . . .I will try that now. They say they only need to add data to a row, and NOT delete.


Steve

THanks Chris