Online Documentation for SQL Manager for InterBase/Firebird
Specifying index properties
Use the Index page of the Index Editor dialog to specify common index properties.
Name
Specifies index name (if necessary, you can edit the one assigned by default).
Use the Index type section to define the created index type:
Index
This option indicates that the index is defined by a field or a number of fields.
Expression Index
This option indicates that index is defined by the expression from the Expression value tab.
Index Active
Enables/disables the index immediately after it is created or changes applied.
Order
Use the drop-down list to select whether the ascending or descending sorting order should be used for index columns.