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  2. Alias (SQL) - Wikipedia

    en.wikipedia.org/wiki/Alias_(SQL)

    An alias is a feature of SQL that is supported by most, if not all, relational database management systems (RDBMSs). Aliases provide users with the ability to reduce the amount of code required for a query, and to make queries simpler to understand.

  3. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    This list includes SQL reserved words – aka SQL reserved keywords, [1] [2] as the SQL:2023 specifies and some RDBMSs have added. Reserved words in SQL and related products In SQL:2023 [ 3 ]

  4. Category:Articles with example SQL code - Wikipedia

    en.wikipedia.org/wiki/Category:Articles_with...

    Category: Articles with example SQL code. 2 languages. ... Alias (SQL) C. Condition (SQL) D. Data definition language; Data manipulation language; Database trigger ...

  5. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

  6. Category:SQL - Wikipedia

    en.wikipedia.org/wiki/Category:SQL

    Articles with example SQL code (28 P) C. SQL clients (3 P) M. ... SQLite (1 C, 4 P) Pages in category "SQL" The following 77 pages are in this category, out of 77 ...

  7. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.

  8. Synonym (database) - Wikipedia

    en.wikipedia.org/wiki/Synonym_(database)

    A private synonym is a synonym within a database schema that a developer typically uses to mask the true name of a table, view stored procedure, or other database object in an application schema. Private synonyms, unlike public synonyms, can be referenced only by the schema that owns the table or object.

  9. Referential integrity - Wikipedia

    en.wikipedia.org/wiki/Referential_integrity

    An example of a database that has not enforced referential integrity. In this example, there is a foreign key (artist_id) value in the album table that references a non-existent artist — in other words there is a foreign key value with no corresponding primary key value in the referenced table.