Srini

The Purpose of ‘When Other’ in COBOL EVALUATE

These are the basic reasons why when other is needed in COBOL evaluate

SQL Aggregate Vs Group By

SQL aggregate function and their rules. Built-in SQL functions.

How to get Query Details in SYSIBM.SYSQUERY

Process you need to analyze SQL query to improve performance.

SUM Aggregate function ideas to use on multi columns

SUM aggregate function explained how to use on multiple table columns and given sample SQL query.

Getting Started with Cloud Computing: An Overview of the Basics

In this post, given top cloud technology tricky questions useful for interviews

DB2 in simple way: what is index only access

Most programmers confuse on index only access. This post tells in simple way how DB2 index only access works, and how it improves performance.

How to choose cleverly DATE,TIME OR TIMESTAMP for Table Columns

In DB2 Date , time and timestamp are three different columns in a table. So this post gives the best idea on how to choose these columns in Table to suit project requirements as well as better performance.

Exception JOIN in SQL: How to Write Correctly – And Best Example

Exception JOINS are one kind of JOINS in SQL. The SQL query given in simple way gives you the actual use of it. This is an alternative to complex sub-queries. Sub-queries need lot of lines of SQL lines instead of JOINS. So JOINs are less confusing compared to Sub-queries.