Knowledge Services Analyst Interview Questions and Answers

Optimizing SQL queries enhances performance and reduces execution time for large datasets, improving report generation efficiency.

• 1. Use Indexing: Create indexes on columns frequently used in WHERE clauses to speed up data retrieval. Example: CREATE INDEX idx_name ON table_name(column_name);

• 2. Avoid SELECT *: Specify only the columns needed in your SELECT statement to reduce data transfer. Example: SELECT column1, column2 FROM table_name;

• 3. Use WHERE Clauses: Filter data as e...read more