0x00740203 (7602691) One or more keys for the index, index-name are Adabas null suppressed.

Explanation

One or more keys that are listed on a CREATE INDEX statement have an Adabas field definition table definition that defines these corresponding Adabas field as null suppressed. If any of the key columns contain Adabas null values, these rows are not returned by Adabas. This is a feature of Adabas.