//table will result in an exception.
if (constraintType == DataDictionary.PRIMARYKEY_CONSTRAINT)
{
for (int index = 0; index < uniqueColumnList.size(); index++)
{
String primaryKeyColumnName = ((ResultColumn) uniqueColumnList.elementAt(index)).getName();
if (explicitlyNullableColumnsList.contains(primaryKeyColumnName))
{
String errorState = SQLState.LANG_DB2_ADD_UNIQUE_OR_PRIMARY_KEY_ON_NULL_COLS;
{if (true) throw StandardException.newException(errorState, primaryKeyColumnName);}
}