IBM DB2 Questions et reponses d'entretien
Question 36. 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.
Question 37. Explain the purpose of the REBIND command in DB2.
The REBIND command is used to rebind packages in DB2, refreshing the access plan and optimizing the SQL statements after changes to the database or its statistics.
Question 38. What is the purpose of the db2exfmt command in DB2?
The db2exfmt command is used to format the output of the EXPLAIN statement, providing a more readable and understandable representation of the access plan.
Question 39. Explain the purpose of the db2look command in DB2.
The db2look command is used to generate SQL statements that can recreate the structure and data of a database, including tables, indexes, and constraints.
Question 40. 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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