SYSIBM catalog tables are base tables defined under this schema. There are many schemas defined in DB2. To your quick reading, I have given all the key points here.
Data access is much faster in Hashing compared to the index. Read the differences between Hashing and Index.
You connect DB2 toPHP engine by just following the given sample logic. Read more.
In DB2, IBM provides few privileges. The privilege is a part of some group. Read more.
Really useful UDF example you can use it for your DB2 project. Added interview questions.
DB2 host variables are really need to get data from database to application program. Read these key points.
Touch base the given DB2 key sections before going for any interview. I am confidently saying you will get sure success.
In DB2 database there are many ways to achieve performance. I explained one way here. Read more.