The fundamental point in DB2 SQL is set operator. So that you can filter data from multiple tables. Given these details such that a layman can 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.
JCL statement can continue writing into next line only you satisfy these three rules. Tricks to best programmer.
Hadoop itself follows FIFO process to schedule the tasks. The two popular tools Capacity and Fair an excellent way help to allocate resources and scheduling jobs.
The online Hadoop Quiz with questions really boost your knowledge quickly. The questions given in a way that a basic Hadoop knowledge holder can refresh it quickly.
Table in SQL is the very first step to understand it and how to create it. The tips are highly useful to learners.