Introduction to SQL and Database What is SQL? SQL is a language used to retrieve and manipulate data in a RDMS. SQL stands for S tructured Q uery L anguage. What is a Database? A database is a place to store data. A relational database system (RDBMS) stores data in tables. Relational Database Tables A relational database stores data in tables. Each table has a number of rows and columns. The table below has 4 rows and 3 columns. SQL and Relational Databases A relational database contains tables which store data that is related in some way. SQL is the language that allows retrieval and manipulation of table data in a relational database.


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