Having Vs Where clause in SQL real usage is to filter rows on aggregate totals. Read more.
Mostly asked certification questions in DB2. You need more focus on these areas before you take the test.
Steps you need while embedding DB2 in COBOL or PL/I
You need to know these SQL query and rules to delete a row from a Table in DB2 database
In DB2 database there are many ways to achieve performance. I explained one way here. Read more.
Table spaces are completely logical in any database. Many developers confused that they always access data from physical storage. But actually that is not correct. So this post clarifies how to define a table with logical storage. Sample SQL really helps you to understand quickly.
DBA primary role is access- control. DB2 has many in-built security features and authority controls. These questions really good to know by DBA.
REORG is a useful utility in DB2. While Loading or Unloading, you get different errors. Run this utility to resolve your errors.