DB2 Interview Questions and Answers
DB2 is a product developed by IBM.DB2 is the relational database management system(RDMS). DB2 is specially designed to store, analyze and retrieve the data efficiently. DB2 can handle a large amount of data and at the same time serving multiple users. The DB2 interview questions will be answered below in the article.
Advantages of DB2 database
- DB2 has a more powerful structured SQL query than Microsoft's SQL.
- DB2 has some useful features like Object tables, Java method support, and multiple user-defined functions
- IBM DB2 run on all the available platforms
If you are preparing for the db2 dba interview questions, we have one of the biggest collection of db2 interview questions.
Most Frequently Asked DB2 Interview Questions
The two types of logging are:-
1. Circular logging:- When the user wants to allocate the new transaction log file then in Circular Clogging the old transaction logs are overwritten that means erasing the sequences of old log files and reusing them.
2. Archive logging:-This method supports for the Online Backup and database recovery using the log files called roll-forward recovery.
- Date:-4 Bytes
- Time:-3Bytes
- Timestamp:-10 Bytes
In a database user cannot create the multiple database objects with the same name. In this case, Schema provides a group which means a user can create various database objects with the same name in different schema groups.
A trigger is a set of particular actions that are primarily performed to respond to the operations (INSERT, UPDATE or DELETE) on a specific table in the database. Triggers can be accessed and shared among the multiple applications.
This particular db2 interview questions defines explicitly the about triggers.
There are two types of triggers:-
- BEFORE triggers:-These triggers are executed before any SQL operation.
- AFTER triggers:-These triggers are executed after any SQL operation
Development History
IBM Db2 which was announced in the year 2017 is the successor name to the DB2 that was introduced in the1980s by IBM only for their specific platform. In 1990 IBM decided to design a Universal Database (UDB) DB2 server that can run on any operating systems like Linux, UNIX, and Windows.
Latest Version
The newest version for IBM DB2 is 10.5, and the name of this version is “Kepler.”