What is SQL? How SQL is used in the real time?
What is SQL? SQL is an abbreviation for structured query language. which also goes by the name sequel even today. it's a language used by the database domain. SQL can be used only for relational type database and not for the others. Relational database is a database which has a tabular method of storing data usually it consists of rows and columns. SQL is a core of relational database which is used for accessing and managing the database with the help of SQL statements you can add columns, update, delete rows of data. We can also retrieve information modify database and perform many more actions. The different subsets of SQL commands are as follows. · DDL- Data Definition Language: it simply deals with the description of the database schema and used to create and modify the structure of database objects in the database. it allows you to perform various operatio...
