The materialized view cannot be changed to immediate because the ON conditions refer to tables which are not in the null-supplying and preserved sides of the OUTER JOINs

Error constant SQLE_UPDATABLE_MATVIEW_OUTERREFERENCE_ON_CONDITION
ODBC 2 state 42000
ODBC 3 state ERROR
Severity 15
SQLCODE -1507
SQLSTATE 42WE7
Sybase error code 12596
 Probable cause