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

Item Value
SQLCODE -90
Constant SQLE_ARGUMENT_CANNOT_BE_NULL
SQLSTATE WP000
Sybase error code 409
ODBC 2 State ERROR
ODBC 3 State ERROR
Parameter 1 The argument number which cannot be null.
Parameter 2 The name of the procedure which cannot receive the null parameter.

Probable cause 

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