OverviewStructured Query Language (SQL) is a specialized language for updating, deleting, and requesting information from databases. SQL is an ANSI and ISO standard, and is the de facto standard database query language. A variety of established database products support SQL, including products from Oracle and Microsoft SQL Server. It is widely used in both industry and academia, often for enormous, complex databases. Show
In a distributed database system, a program often referred to as the database's "back end" runs constantly on a server, interpreting data files on the server as a standard relational database. Programs on client computers allow users to manipulate that data, using tables, columns, rows, and fields. To do this, client programs send SQL statements to the server. The server then processes these statements and returns result sets to the client program. SELECT statementsAn SQL
SELECT column1, column2 FROM table1, table2 WHERE column2='value'; In the above SQL statement:
Note: SQL is not case sensitive (for example, ExamplesFollowing are examples of SQL
To make a
Learning more about SQLTo learn more about SQL programming, Indiana University students, faculty, and staff can download materials for self-study from IT Training. For the general public, various online tutorials are available, such as the w3schools.com SQL Tutorial. This is document ahux in the Knowledge Base. Is a specialized language that programmers use to add and change data in the database?SQL is a programming language used by nearly all relational databases to query, manipulate, and define data, and to provide access control.
Is the most prominent data manipulation language today?The most prominent data manipulation language today is Structured Query Language, or SQL. End users and information systems specialists can use SQL as an interactive query language to access data from databases, and SQL commands can be embedded in application programs written in conventional programming languages.
Which of the following occurs when the same attribute in related data files as different values?Data redundancy occurs when the same piece of data is stored in two or more separate places and is a common occurrence in many businesses.
Which of the following enables users to view the same data in different ways?Multidimensional analysis enables users to view the same data in different ways using multiple dimensions.
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