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DRAFT

Omnidex SQL SELECT

Description

Syntax

  SELECT expression_list
      FROM data_source
      [ WHERE predicates ]
      [ GROUP BY expression_list ]
          [ HAVING predicates ]
      [ ORDER BY expression_list ]
      [ ON [ CURSOR ] cursor_no ] | [ INSTANCE instance_no ]
      [ WITH options ]
  expression_list
         [ < TOP (n) 
             [ SKIP(n) | EVERY(n) | RANDOM (n [, seed] ) ] ]
         [ < DISTINCT COLUMN | ALL >]
         [ SAMPLE(‘control_break’ [, ’qualifier’]) ] 
         [ UNION [ALL] | INTERSECT | EXCEPT ]
         [ * ] | [ TABLE.]COLUMN [column_alias] [, TABLE.column ... ]
         [ (subquery) ]
         [ aggregate_function( [TABLE.]COLUMN ) ]
         [ $uniquekey | $odxid ]
 
  FROM table1 [ table_alias ] [, table2 [ table_alias ] [ $omnidex ] ]
       [ LFET | RIGHT ]
           [ OUTER ]
           [ JOIN ]
           [ , table2 ]
           [ ON table1.linkfield = table2.linkfield ]
  WHERE 
       [ EXISTS (subquery) ]
       [ IN (subquery) ]
  GROUP BY group_by_columns
  HAVING [ left_operand operator subquery ]
         [ left_operaand IN (subquery) ]
  ORDER BY [COLUMN | POSITION ] [, COLUMN | POSITION ]

Discussion

One of the following:

  • All columns for the named tables using a syntax of:

RIGHT> [OUTER JOIN [[[environment.]database.]table

        ON join_predicate [<AND | OR> NOT] join_predicate]
join_predicate
     [[[environment.]database.]table.column = [[[environment.]database.]table.column
                   
FROM data_source
WHERE Clause
GROUP BY Clause
HAVING Clause
ORDER BY Clause
WITH options

Examples

Simple

> select * from mytable

select columns

> select company, contact from mytable
 
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dev/sql/statements/select/home.1259960602.txt.gz · Last modified: 2012/10/26 14:28 (external edit)