SQL (Structured Query Language) – Indexes Indexes are special search tables that allow the database search engine to speed up data recovery. In short, an index is a pointer to the data in a table. An index in a database is very much related to an index which is present at the end of any book. For example, if you...

This question came from a business professional. “I have an employee who usually reports sick about 2 days per month, but he is a good worker. Should I fire him?” You have mentioned that he is a good worker, so I am not sure I understand the real concern here. If this employee meets and exceeds expectations, then why automatically...

IBM DB2 Latest version 11.1. Developed in 1983. The language used is the C, C ++ assembler to write it. It is compatible with multiple versions of Windows, UNIX as well as Linux. Some functions are the following: It is very easy to install and configure, and the data is easily accessible. An individual can store the enormous amount of...

What is SQL (Structured Query Language)? SQL is a structured query language, a computer language in which the data stored in a relational database is stored, manipulated and retrieved. The structured query language (SQL) is the default language of the relationship database system. All relational database management systems, such as MySQL, MS Access, Oracle, Sybase, Informix, Postgres and SQL Server,...

This question comes from a busy professional. I told my boss that I’m going to resign, and he offered me twice my current salary if I stay, what should I do? Congratulation on the counteroffer. It says a lot about your value to their organization. Great job! Now for the hard part: deciding your next step. What was your reason...