SELECT
Synopsis
SELECT [ * | expression [ [ AS ] expression_alias ] [, ...] ]
FROM table_name [ [ AS ] table_alias ]
[WHERE condition]
Description
The SELECT
command retrieves rows from a table. A row is a sequence of expressions defined after the SELECT
keyword.
Expressions may have optional aliases.
table_name
refers to a single IMap
data structure. A table may have an optional alias.
An optional WHERE
clause defines a condition
, that is any expression that evaluates to a result of type boolean.
Any row that doesn’t satisfy the condition is eliminated from the result.