A question asked about data contained in two or more tables in a relational database. The relational query must specify the tables required and what the condition is that links them; for example ...

Experts like Michael Stonebraker of the University of California at Berkeley and Ingres pointed out that doing that sort of query in a CODASYL database such as IDMS took roughly half the CPU time ...

When a PROC SQL view is created from a Pass-Through query, the query's DBMS connection information is stored with the view. Therefore, when you reference the PROC SQL view in a SAS program, you ...

Beginning in Version 7, you can associate a libref directly with your DBMS data and use the libref in your Pass-Through query just as you would use any SAS data set. As a result, you can now create a ...

Perhaps, the most important thing you can do to assure optimal application performance when accessing data in a relational/SQL database is to create the correct indexes for your tables based on the ...