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::Where (SQL)

::concepts

Source::where    Ename::select    'value::string    Value::letter    BETWEEN::clause    DELETE::mycol

{{ safesubst:#invoke:Unsubst||$N=Refimprove |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} A WHERE clause in SQL specifies that a SQL Data Manipulation Language (DML) statement should only affect rows that meet specified criteria. The criteria are expressed in the form of predicates. WHERE clauses are not mandatory clauses of SQL DML statements, but can be used to limit the number of rows affected by a SQL DML statement or returned by a query. In brief SQL WHERE clause is used to extract only those results from a SQL statement, such as: SELECT, INSERT, UPDATE, or DELETE statement.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>


Where (SQL) sections
Intro  Overview   Predicates    External links    References   

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