SQL Syntax
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Revision as of 20:26, 11 November 2011 by imported>Aeric
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
- Legend
-
- [ x ] - Optional (one or none)
- [, x ... ] - Zero or more additional
- { x | y } - Choose one
- CAPITALIZED - SQL Keyword (case insensitive)
- italicized - value you supply
SELECT Statement
In a select statement, you designate one more columns, separated by commas (or "*" for all columns), a table to get the data from, and additional options:
- SELECT
- [ DISTINCT ]
- { * | column_expr [, column_expr] ... }
- FROM table_reference
- [WHERE where_clause]
- [GROUP BY group_by_clause]
- [ORDER BY order_by_clause]
- [LIMIT limit_clause]
where:
- DISTINCT
- Eliminates duplicate rows from the result set.
- Note:
- For example: DISTINCT(customer_name,address)
Learn more:: MySQL Select Statement syntax
column_expr
- { column_name | SQL Function } [ [AS] alias]
where:
- alias
- Displayed as the column name in the result set, in the SQL Browser.
Can be used as a field name in a group_by_clause or order_by_clause. - For example:
- SELECT CONCAT(last_name,', ',first_name) AS full_name
- FROM Customer_Contacts ORDER BY full_name;
- SELECT CONCAT(last_name,', ',first_name) AS full_name
Learn more:: SQL Functions