Saksoft Senior Consultant Interview Questions, Process, and Tips

Performance tuning in SQL store procedures involves optimizing the code to improve execution speed and efficiency.

• Identify and eliminate unnecessary code

• Use appropriate indexing to speed up data retrieval

• Avoid using cursors and loops whenever possible

• Optimize query execution plan

• Consider using stored procedures for frequently executed queries

Index optimization in SQL Server involves creating, maintaining, and optimizing indexes to improve query performance.

• Identify and create indexes on columns frequently used in WHERE clauses

• Regularly update statistics to ensure the query optimizer has accurate information

• Consider using included columns to cover queries that require additional columns not in the index key columns

• Avoid over-indexing as it can lead to decre...read more

SQL Profiler is a tool used to monitor and capture SQL Server events and performance data.

• SQL Profiler helps in identifying and troubleshooting performance issues in SQL Server.

• It captures events like queries, stored procedures, errors, and more.

• Allows users to analyze the captured data to optimize database performance.

• Can be used to trace and monitor specific activities in real-time.

• Helps in identifying slow queries a...read more

Temp tables are temporary tables used to store intermediate results, while CTEs are temporary result sets defined within a query.

• Temp tables are physical tables that are created in the tempdb database and can be used multiple times within a session.

• CTEs (Common Table Expressions) are temporary result sets that are defined within a query and can only be referenced within that query.

• Temp tables persist until they are exp...read more