Director Data Management Interview Questions and Answers

To ensure automated index rebuild job runs on Sundays only, we can set a schedule in the job properties.

• Open the job properties and go to the schedule tab

• Set the schedule to run on Sundays only

• Save the changes and test the job to ensure it runs as expected

The ideal frequency of index rebuild depends on the specific database and workload.

• The frequency should be determined based on the rate of data modification and the performance impact of index rebuilds.

• Indexes with high fragmentation or high levels of data modification may require more frequent rebuilds.

• Monitoring and analyzing the database performance can help determine the optimal frequency.

• Consider using maintenance plans or automated tools to schedule and manage index reb...read more

To improve DB performance, optimize queries, use indexes, increase server resources, and implement caching.

• Optimize queries by using proper indexing and avoiding unnecessary joins

• Increase server resources like CPU, memory, and storage to handle larger workloads

• Implement caching mechanisms to store frequently accessed data in memory for faster retrieval

• Regularly monitor and tune the database for optimal performance

• Consider partitioning large tables to distribute data and impro...read more

Using DATEPART function to make decisions in IF block

• DATEPART function extracts a specific part of a date/time value

• dw parameter in DATEPART function returns the day of the week as a number

• IF block can be used to execute a code block based on a condition

• DATEPART(dw, getdate())=1 checks if the current day is Sunday