In Operator (Microsoft Access SQL)
|Access Developer Reference|
Determines whether the value of an expression is equal to any of several values in a specified list.
expr [Not] In(value1, value2, …)
The In operator syntax has these parts:
|expr||Expression identifying the field that contains the data you want to evaluate.|
|value1, value2||Expression or list of expressions against which you want to evaluate expr.|
If expr is found in the list of values, the In operator returns True; otherwise, it returns False. You can include the Not logical operator to evaluate the opposite condition (that is, whether expr is not in the list of values).
For example, you can use In to determine which orders are shipped to a set of specified regions:
The following example uses the Orders table in the Northwind.mdb database to create a query that includes all orders shipped to Lancashire and Essex and the dates shipped.
This example calls the EnumFields procedure, which you can find in the SELECT statement example.