A relation condition compares two operands, either of which may be an identifier, a literal, an arithmetic expression, index-name or a function-identifier. The relation condition must contain at least one reference to an identifier.
Relation Condition - Format >>-operand-1--+----+--+---------+-------------------------------> '-IS-' | (1) | '-NOT-----' >--+-+-GREATER--+------+-+---------------+--operand-2---------->< | | '-THAN-' | | | +->-----------------+ | | +-LESS--+------+----+ | | | '-THAN-' | | | +-<-----------------+ | | +-EQUAL--+----+-----+ | | | '-TO-' | | | '-=-----------------' | +-GREATER--+------+--OR EQUAL--+----+-+ | '-THAN-' '-TO-' | +->=----------------------------------+ +-LESS--+------+--OR EQUAL--+----+----+ | '-THAN-' '-TO-' | '-<=----------------------------------'
The relational operator specifies the type of comparison to be made. Each relational operator must be preceded and followed by a space.