VSAM PRINT command is used to print the contents of VSAM or non-VSAM datasets. Contents can be printed in various…
VSAM REPRO command is used to copy data from one file(Input file) to another file(Output file). Input & Output files…
VSAM Alternate index is the additional index that is created for KSDS/ESDS datasets (but not RRDS or extended ESDS) in…
VSAM DEFINE CLUSTER is used to define attributes for the cluster as a whole or for the components like data…
SQL Subqueries with IN or NOT IN check is similar to the ANY and SOME checks. Use the IN clause for multiple-record,…
SQL Subqueries are also called inner queries or inner select or a nested queries. The statement containing the subquery is…
Comparison operators (=, >, < , etc.) are used only on subqueries that return one row. SQL Subqueries with ANY and ALL operators, you can…
The JOIN operation allows you to combine rows from two or more tables based on a related column. OUTER JOIN…
There are four basic types of JOINS – Inner, Outer (left, right, full), Self and Cross join. An inner join…
CAST expression is used to convert one data type to another. It is similar to the various field-type functions (e.g.…