Difference between revisions of "SQL Syntax"

From AgileApps Support Wiki
imported>Aeric
imported>Aeric
Line 12: Line 12:


==SELECT STATEMENT==
==SELECT STATEMENT==
In a ''select'' statement, you designate one more columns, separated by commas, and a table to get the data from, plus additional options:  
In a ''select'' statement, you designate one more columns, separated by commas, or you specify "*" for all columns, as well as a table to get the data from, and additional options:  
:SELECT
:SELECT
::{ * | [[#column_expr|column_expr]] (, [[#column_expr|column_expr]])* }
::{ * | [[#column_expr|column_expr]] (, [[#column_expr|column_expr]])* }

Revision as of 19:25, 11 November 2011

Here is the syntax for the SQL SELECT statements that the SQL parser recognizes.

Considerations
  • SQL syntax is case insensitive.
  • Field and table names are case sensitive

Learn more: SQL Functions

Legend
  • [ ... ] - Optional
  • { ... | ... } - Choose one

SELECT STATEMENT

In a select statement, you designate one more columns, separated by commas, or you specify "*" for all columns, as well as a table to get the data from, and additional options:

SELECT
{ * | column_expr (, column_expr)* }
FROM table_reference
[WHERE where_clause]
[GROUP BY group_clause]
[ORDER BY order_clause]
[LIMIT limit_clause]

column_expr

There are several ways to specify columns:

{ column_name
| [DISTINCT] column_name
| [DISTINCT](column_name)
...
}

where:

DISTINCT
Eliminates duplicate rows from the result set.