Argument %1 of procedure '%2' cannot be NULL

Error constant SQLE_ARGUMENT_CANNOT_BE_NULL
ODBC 2 State ERROR
ODBC 3 State ERROR
Parameter 1 The argument number that cannot be NULL.
Parameter 2 The name of the procedure that cannot receive the NULL parameter.
Severity 16
SQLCODE –90
SQLSTATE WP000
Sybase error code 409
Probable cause

You passed a NULL value to a procedure expecting a scalar argument. For example, a Java procedure that has an 'int' argument cannot receive a NULL value.