Locks and Concurrency are tricky words. Understand the real purpose of these mechanisms for better use of database.
Docker is an open standards platform, and it is shippable to any device. Create once use that image to develop your applications. Useful for legacy programmers.
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.
Performance tuning in DB2 is in the hands of developers. These tips really you need to improve it.
TSQ in CICS helps to write and read records internal to program. Read more.
The real use of top command in UNIX. You will know complete system information.
Top differences between stored procedures and functions you can read and refresh quickly. Good summary for SQL developers.
Really useful UDF example you can use it for your DB2 project. Added interview questions.