Package isql.expression

Interface Summary

ISimpleExpression	the expressions that don't contain an operator
IWhereExpression	Expressions that can be used in a where clause (not aggregate functions, not case)

Class Summary

AggregateFunction	function to aggregate rows of the view (for example SUM, AVERAGE...).
CaseExpression	calculates the result of a CASE-WHEN-THEN expression
CaseExpressionTest
ColumnExpressionByGroup	A simple table-column expression.
ColumnExpressionSimple	An expression composed by a single column
ConstantExpression	Expression consiting of just a constant, like a number or a string
DoubleExpression	The combination of two other expression through a binary operator (e.g.
DoubleExpressionTest
UnaryExpression	To evaluate an expression with an unary operator
When	In a case clause, it is the WHEN part of one of the WHEN...THEN clauses.
WhenThen	A WHEN-THEN substatement of a CASE statement

Enum Summary

AggregateType

The available aggregate functions