Data held by a computer database can be organized, managed, and retrieved with the help of SQL. Structured Query Language, or SQL for short, is a database management system. While the standard pronunciation of SQL is "sequel," the variant pronunciation "S.Q.L." is also in use for historical reasons. SQL allow you to communicate with databases, as the name suggests. A relational database is the only kind of database that SQL can access.
Use the Structured Query Language (SQL) to ask a database for certain information. In response to your SQL query, the DBMS will retrieve the specified data and provide it back to you. Structured Query Language gets its name from the fact that it allows users to ask databases for specific data and then receive that data back in the form of a query.
All of the features offered by a database management system (DBMS) are controlled via SQL. These features include:
- Data Definition: A user can specify the arrangement and structure of the stored data as well as the relationships between the stored data items using SQL.
- Data Retrieval: Using SQL, either a human or an application program can access and work with data contained in a database.
- Data Manipulation: Using SQL, either a human or an application program can insert new data, delete old data, or change data that has already been saved in the database.
- Access Control: Protecting stored data from unauthorized access is possible with SQL by limiting a user's ability to obtain, add, and edit data. Sharing of data.
- Data Sharing: Using SQL, concurrent users can coordinate data exchange in a way that prevents interference.
- Data Integrity: To prevent corruption caused by inconsistent updates or system failures, SQL defines integrity constraints in the database.
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