SQL Database
Written by hispanic on May 16th, 2008If you're new here, you may want to subscribe to my RSS feed. Thanks for visiting!
SQL or Structured Query Language is a type of programming language often specially made for database creation and management. It is made to perfectly manage and retrieve data from a RDBMS or relational database management system, a complex type of database that is widely used in storing huge amounts of data that are related to each other.
Unlike the C programming language and the Beginner’s All-purpose Symbolic Instruction Code or BASIC programming language, SQL is a set-based language. It is also a declarative query language with additional extensions. The extensions make the standard SQL more functional.
SQL is further divided into different language elements. These include the statements that have an effect on both the data and the schema, the queries that have the ability to retrieve the data, the expressions that are designed to produce tables or scalar values, the predicates that are used to specify the conditions, the clauses that are the main components of both queries and statements, the whitespace that is used for formatting the SQL code, and the semicolon statement that is a part of the SQL grammar.
Among the elements, the queries are the most common operations in the SQL database. It is performed with a declarative keyword SELECT, which retrieves the data from a table. However, the SELECT query has no standard effect on the stored data. In some cases, the SELECT query has an effect in the database similar to Microsoft SQL Server’s SELECT INTO.
SQL databases are quite complex and difficult to understand at first, but it can be a very effective in manipulating data in your database. If want to learn more about this type of database, there are a lot of resources online that you can use for free.
Tags: Computers