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       <dc:date>2026-04-29T17:59:45+0000</dc:date>
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        <dc:date>2016-06-28T22:38:51+0000</dc:date>
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        <title>dev:sql:statements:select:from</title>
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        <description>Omnidex SQL: SELECT FROM Clause
 QuickLinks    Statements   Functions   OdxSQL  See Also: SELECT statement  WHERE clause GROUP BY clause ORDER clause 
Description

Syntax


  FROM table_spec [ table_alias ] [, [table_spec2 [ table_alias ] [ $omnidex ] ]
           [[ &lt; LEFT | RIGHT &gt;][ OUTER | CROSS ] ]
       [ JOIN table_spec2 ]
           [ ON table_spec1.linkfield = table_spec2.linkfield ]
           [ &lt;AND | OR&gt; NOT] table_spec.linkfield = table_spec.linkfield ]</description>
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        <title>dev:sql:statements:select:group_by</title>
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        <description>Omnidex SQL: SELECT GROUP_BY Clause
 QuickLinks    Statements   Functions   OdxSQL  See Also: SELECT statement  FROM clauseWHERE clause  ORDER BY clause
Description

Syntax


  GROUP BY group_by_columns
      [ HAVING [ left_operand operator subquery ]
               [ left_operand IN (subquery) ] ]


Examples

Column Names From the Select List</description>
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        <title>dev:sql:statements:select:home</title>
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        <description>QuickLinks    Statements   Functions   OdxSQL  
Omnidex SQL Statement: SELECT
See Also:FROM clause WHERE clause  GROUP BY clause ORDER BY clause 
Description

The Omnidex SQL Select statement is the primary statement used to query records on Omnidex enhanced data.

Omnidex will automatically optimize the SELECT statement using Omnidex indexes.

Syntax</description>
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        <title>dev:sql:statements:select:order_by</title>
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        <description>Omnidex SQL: SELECT ORDER BY Clause
 QuickLinks    Statements   Functions   OdxSQL  See Also: SELECT statement  FROM clauseWHERE clause  GROUP BY clause
Description

By default, Omnidex will returned selected rows in the order returned by RDBMS or by how the data is indexed.  The ORDER BY clause is used to return selected rows in sorted ascending or descending order.  Multiple column_specs can be specified to cause a sort within the primary sort.</description>
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        <dc:date>2016-06-28T22:38:51+0000</dc:date>
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        <title>dev:sql:statements:select:sample</title>
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        <description>Omnidex SQL: SAMPLE Function

Description

The SAMPLE function is part of the SQL SELECT syntax and is supported by Omnidex.  See the SELECT statement for further information.</description>
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        <dc:date>2016-06-28T22:38:51+0000</dc:date>
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        <title>dev:sql:statements:select:where</title>
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        <description>Omnidex SQL: SELECT WHERE Clause
 QuickLinks    Statements   Functions   OdxSQL  See Also: SELECT Statement   FROM clauseGROUP BY clause ORDER BY clause 
Description

The WHERE clause can be used to specify both criteria and table join information.

Syntax


  WHERE [ criteria_list ]
        [ EXISTS (subquery) ]
        [ IN (subquery) ]</description>
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