Standard Relational Operators

You can use the standard relational operators to compare the contents of a variable with any type of value (numerical, string, Boolean, dates, etc.) or another variable. When comparing strings using the standard operators, Integration Server uses a binary code point comparison algorithm. In this algorithm, Integration Server compares each byte in the first string with each byte in the second string to determine which string is numerically greater. For example, “A” has a value of 65 and “a” has a value of 97, so “a” is greater than “A”. Keep the following points in mind when using standard relational operators to compare strings:

If you use a standard relational operator to compare numbers in fields of type String, Integration Server treats the contents in the field as numbers. To stop Integration Server from treating the value as a number, you can put quotes (' or '') around the variable name in the expression. For example %'var1'%=%'var2'%.

Operator	Syntax	Description
=	a = b	Equal to.
		This example...	Evaluates to true if...
		customerID = "webMethods"	The value of the customerId variable is “webMethods.”
==	a == b	Equal to.
		This example...	Evaluates to true if...
		sku == "WM001"	The value of the sku variable is “WM001.”
!=	a != b	Not equal to.
		This example...	Evaluates to true if...
		quantity != 0	The value of the quantity variable does not equal 0 (zero).
<>	a <> b	Not equal to.
		This example...	Evaluates to true if...
		state <> 'ME'	The value of the state variable does not equal ME (Maine).
>	a > b	Greater than.
		This example...	Evaluates to true if...
		price > 100	The value of the price variable is greater than 100.
		%companyID% > "Acme"	The value of the companyID variable is greater than Acme.
>=	a >= b	Greater than or equal to.
		This example...	Evaluates to true if...
		%totalPrice% >= 100	The value of the totalPrice variable is greater than or equal to 100.
		companyID >= "Acme"	The value of the companyID variable is greater than or equal to Acme.
<	a < b	Less than.
		This example...	Evaluates to true if...
		quantity < 5	The value of the quantity variable is less than 5.
		companyID < "Acme"	The value of the companyID variable is less than Acme.
<=	a <= b	Less than or equal to.
		This example...	Evaluates to true if...
		unitPrice <= 100	The value of the unitPrice variable is less than or equal to 100.
		companyID <= "Acme"	The value of the companyID variable is less than or equal to Acme.