I need to set up a query and I'm not sure of the syntax. Here is the schema scenario:
A 'Company' table with companyID and companyName.
A 'Delivery Areas' table with areaID and areaDescription.
A CompanyDeliveryCrossReference table with a refID (just autonumber), companyID, and areaID
The cross reference table will have an entry for each area that the company delivers within. What would a query look like if it were looking for companys that delivered in all:Area1, Area2, Area3?
Recursive SQL is one of the most fascinating and powerful and yet dangerous feature offered in many modern databases today using a Common Table Expression (CTE) first introduced in the ANSI SQL 99 standard. The first implementations of CTE began ap…
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have.