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A data control language (DCL) is a syntax similar to a computer programming language used to control access to data stored in a database (authorization). In particular, it is a component of Structured Query Language (SQL). Data Control Language is one of the logical group in SQL Commands.
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Referential integrity is a property of data stating that all its references are valid. In the context of relational databases , it requires that if a value of one attribute (column) of a relation (table) references a value of another attribute (either in the same or a different relation), then the referenced value must exist.
Major DBMSs, including SQLite, [5] MySQL, [6] Oracle, [7] IBM Db2, [8] Microsoft SQL Server [9] and PostgreSQL [10] support prepared statements. Prepared statements are normally executed through a non-SQL binary protocol for efficiency and protection from SQL injection, but with some DBMSs such as MySQL prepared statements are also available using a SQL syntax for debugging purposes.
Transact-SQL is central to using Microsoft SQL Server. All applications that communicate with an instance of SQL Server do so by sending Transact-SQL statements to the server, regardless of the user interface of the application. Stored procedures in SQL Server are executable server-side routines. The advantage of stored procedures is the ...
A top Senate Democrat on Saturday accused conservative Supreme Court justices of violating federal disclosure laws in a lengthy report that caps a monthslong investigation by the Senate Judiciary ...
Eventually, all nine suspects involved in the kidnapping traveled together in two separate cars to a wooded area in Miller, Mo., according to local KOLR 10, where Hunter Jr. forced the two victims ...
Jelly Roll is letting the criticism roll off his back.. Speaking on his wife Bunnie XO's "Dumb Blonde" podcast, the "Save Me" singer, 40, addressed backlash he received after meeting President ...