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Home / Interview Subjects / IBM DB2
WithoutBook LIVE Mock Interviews IBM DB2 Related interview subjects: 24

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Know the top IBM DB2 interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Total 40 questions Interview Questions and Answers

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Know the top IBM DB2 interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Ques 3

How does DB2 handle concurrency control in a multi-user environment?

DB2 uses various concurrency control mechanisms, including locks and isolation levels, to ensure that transactions execute without interference from other transactions.
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Ques 5

What is a DB2 index and how does it improve query performance?

An index is a data structure that provides a quick and efficient way to look up and access data in a table. It improves query performance by reducing the number of rows that need to be scanned.
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Ques 6

Explain the purpose of the db2diag.log file in DB2.

The db2diag.log file contains diagnostic information about the database manager and its associated processes. It is used for troubleshooting and monitoring.
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Ques 7

How can you monitor and optimize locking in DB2?

Locking can be monitored using tools like db2pd and improved by using proper isolation levels, avoiding long-running transactions, and optimizing SQL queries.
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Ques 8

What is a data partitioning feature in DB2?

Data partitioning is a feature in DB2 that allows tables and indexes to be divided into smaller, more manageable pieces, improving query performance and parallelism.
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Ques 9

What is the purpose of the db2dart utility in DB2?

The db2dart utility is used for database analysis and recovery. It can be used to check the consistency of database objects and repair certain types of corruption.
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Ques 10

How can you monitor and manage database performance in DB2?

Database performance can be monitored using tools like db2top and db2mon. Performance can be managed by optimizing SQL queries, updating statistics, and configuring buffer pools.
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Ques 11

What is the purpose of the db2relocatedb command in DB2?

The db2relocatedb command is used to move a database from one directory path to another. It helps in relocating databases without requiring a full backup and restore.
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