Pattern matching in SQL- Like Operator

LIKE Operator: The LIKE operator is used to search for a specified pattern in a column. It allows the use of wildcards: % (percent sign): Matches zero or more characters. _ (underscore): Matches any single character. Examples: SELECT * FROM employees WHERE last_name...

List out Performance optimization steps for SQL

Optimizing SQL performance is crucial for ensuring that database operations are efficient and scalable. Here are some steps you can take to optimize SQL performance: Indexing: Proper indexing can significantly improve query performance. Identify columns frequently...