Custom Actions The 'heart' of any custom rifle is the action. A good action is essential for competitive accuracy, and no component is more important in terms of rifle longevity and shooter safety.Custom actions start at around $750 and can cost three times that amount for the jumbo 50 BMG actions.ustom Actions The 'heart' of any custom rifle is the action. A good action is essential for competitive accuracy, and no component is more important in terms of rifle longevity and shooter safety.
SQL (pronounced ess-que-el) stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as update data on a database, or retrieve data from a database. Some common relational database management systems that use SQL are: Oracle, Sybase, Microsoft SQL Server, Access, Ingres, etc.
The part of SQL that is used for creating and altering database objects is called data-definition language (DDL). This topic does not cover DDL. For more information, see the article Create or modify tables or indexes by using a data-definition query.