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more tables.<ref>{{cite web |url=http://msdn2.microsoft.com/en-us/library/ms189499.aspx |title=Transact-SQL Syntax Conventions |author=Microsoft |date=23 May 2023 }}</ref><ref>{{cite web |url=http://dev.mysql.com/doc/refman/5.0/en/select.html|title=SQL SELECT Syntax |author=MySQL}}</ref> A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, <code>SELECT</code> is th... Tags: Reverted references removed Mobile edit Mobile web edit |
→Query evaluation ANSI: g.GroupName, count(g.*) as NumberOfMembers from users u inner join groups g on g.Userid = u.Userid group by GroupName having count(g.*) > 5 </syntaxhighlight> |8= the SELECT list is evaluated and returned as Vtable 7 |9= the DISTINCT clause is evaluated; duplicate rows are removed and returned as Vtable 8 |10= the ORDER BY clause is evaluated, ordering the rows and returning VCursor9. This is a cursor and not a table because ANSI defines a cursor as an ordered set... Tags: Reverted Mobile edit Mobile web edit |
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|7= the HAVING clause is evaluated for groups for which the HAVING clause is true and inserted into vTable6. For example:
<syntaxhighlight lang="postgresql">
select relational).
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