Suppose we store guardian’s 12 digit Aadhaar number as GUID (Guardian ID) in School table, we can declare GUID as _________ since Aadhaar number is of fixed length and we are not going to perform any mathematical operation on GUID.

SQL is an abbreviation for the term Structure Query Language. It is a type of database query language (DQL) that is primarily used for storing data and managing it in the Relational DBMS. This language was the first commercial language introduced for the Relational model of the database by E.

Basically, SQL is a language that is used to manage data that's held in a relational database management system. It uses tables to both manipulate and retrieve information from databases for analysis.