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  2. Microsoft Access - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Access

    Microsoft Access. Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational Access Database Engine (ACE) with a graphical user interface and software-development tools. It is a member of the Microsoft 365 suite of applications, included in the Professional and higher editions or sold separately.

  3. Relational database - Wikipedia

    en.wikipedia.org/wiki/Relational_database

    A relational database ( RDB [1]) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. [2] A database management system used to maintain relational databases is a relational database management system ( RDBMS ). Many relational database systems are equipped with the option of using SQL (Structured Query ...

  4. Query plan - Wikipedia

    en.wikipedia.org/wiki/Query_plan

    Query plan. A query plan (or query execution plan) is a sequence of steps used to access data in a SQL relational database management system. This is a specific case of the relational model concept of access plans. Since SQL is declarative, there are typically many alternative ways to execute a given query, with widely varying performance.

  5. Interstate Identification Index - Wikipedia

    en.wikipedia.org/wiki/Interstate_Identification...

    Interstate Identification Index. The Interstate Identification Index ( III; pronounced "triple-eye"), AKA “FBI Triple I Teletype [1] ”, is a national index of state and federal criminal histories (or rap sheets) in the United States of America, maintained by the Federal Bureau of Investigation (FBI) at the National Crime Information Center ...

  6. Specification pattern - Wikipedia

    en.wikipedia.org/wiki/Specification_pattern

    Specification pattern. In computer programming, the specification pattern is a particular software design pattern, whereby business rules can be recombined by chaining the business rules together using boolean logic. The pattern is frequently used in the context of domain-driven design . A specification pattern outlines a business rule that is ...

  7. Access query language - Wikipedia

    en.wikipedia.org/wiki/Access_query_language

    Access, the successor to ENGLISH, is an English -like query language used in the Pick operating system . The original name ENGLISH is something of a misnomer, as PICK's flexible dictionary structure meant that file and attribute names could be given aliases in any natural language. For instance the command SORT could be given the alias TRIEZ ...

  8. Query by Example - Wikipedia

    en.wikipedia.org/wiki/Query_by_Example

    Query by Example. Query by Example ( QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL. [1] It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions.

  9. Referential integrity - Wikipedia

    en.wikipedia.org/wiki/Referential_integrity

    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. [1]