Functions are predefined in SQL and you use them to perform operations on data. They let you do things like aggregating data, formatting strings, extracting dates, and so on.

LIKE-Function-in-SQL. The SQL LIKE clause is used to compare a value to similar values using wildcard operators. In this case we going to use percent sign operator (%) WHERE image_name LIKE 'mosa%' ...

SQL procedures, as database objects stored in a database engine like MySQL, PostgreSQL, BigQuery, etc., are named blocks of SQL queries or code that can be called and executed multiple times from ...

Understanding of the functions of SQL is essential in order to conduct effective analysis of data and preparation of the reports. The simple grouping functions which are used in the summarization ...