DB2 Interview Questions and Answers

Here you can find DB2 Interview Questions and Answers.

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DB2 Interview Questions and Answers

Define DB2?

DB2 is a Database Management System for the MVS Operating System where, DB2 is a subsystem of MVS Operating System.

DB2 Interview Questions and Answers

What is the purpose of using COMMIT?

The data changes can be made permanent by using COMMIT. It also permits data to be accessed by other applications who can reference the committed data

DB2 Interview Questions and Answers

List out the Data types available

1. SMALLINT 2. INTEGER 3. FLOAT 4. DECIMAL 5. CHAR 6. VARCHAR 7. DATE 8. TIME

DB2 Interview Questions and Answers

Define SQLCA

SQL Communication Area is a structure of variables, which are updated after every execution of SQL statements. For an application that contains executable SQL statements, only one SQLCA is needed. FORTRAN need more than one SQLCA to be provided. For Java, SQLCA is not applicable

DB2 Interview Questions and Answers

Define CHECK constraint

It is specified as a condition or criteria to ensure data integrity. A value to be inserted or updated to a table is tested by CHECK constraint. The CHECK constraints are created during the creation of the table.

DB2 Interview Questions and Answers

What is SQLCAâ€™s maximum length?

136 is the maximum length of the SQLCA.

DB2 Interview Questions and Answers

Discuss about DB2 bind?

The process that builds access paths to the DB2 table is known as bind. The bind uses Database Request Modules from the DB2 pre-compile step as input and produces an application plan. It checks for user authentication and validates SQL statements in the DBRM(s).

DB2 Interview Questions and Answers

List out the three types of page locks that can be held.

Exclusive Update Share.

DB2 Interview Questions and Answers

Define buffer pool?

The buffer pool is a reserved main storage, which is to satisfy the buffering requirements for one or more table spaces or indexes. It can be made up of either 4K or 32K pages.