Enterprise database architectures use three DBMS schema layers to separate the system into internal, external and conceptual tiers. Here's how they work.

When you use librefs that refer to DBMS data with SAS functions, some functions might return a value that differs from what is returned when you use the functions with normal SAS data sets. For ...

The PL/SQL package DBMS_RANDOM can generate random text and date values as well as numbers. Check out these code examples to learn how you can generate these values in your development work.

The worst offenders in creating such wide-open table structures are in support of ETL staging areas, because batch ETL processing is often designed such that the DBMS is the functional equivalent of a ...

Gartner has issued a new report “The Growing Maturity of Open-Source Database Management Systems” by DBMS analyst Donald Feinberg. Feinberg is an old hand at Gartner, having created the DBMS ...