A stored procedure is a set of SQL statements that are stored in the database and can be executed by calling the procedure. It is used to perform a specific task or set of tasks. When students first start ...Read more
A foreign key is a column or set of columns in a table that refers to the primary key of another table. It is used to establish a relationship between two tables.When we study databases, one important idea is ...Read more
What is a primary key?When we work with databases, one of the first ideas we must understand is how to uniquely identify each record. Just like every student in a class has a unique roll number, every row in ...Read more
What is a table in SQL? In SQL, a table is the basic structure used to store data. The easiest way to understand it is to imagine a table as a carefully organised spreadsheet where information is ...Read more