@Override
public ValidationErrors validate(AlterSequenceStatement alterSequenceStatement, Database database, SqlGeneratorChain sqlGeneratorChain) {
ValidationErrors validationErrors = new ValidationErrors();
validationErrors.checkDisallowedField("incrementBy", alterSequenceStatement.getIncrementBy(), database, HsqlDatabase.class, H2Database.class);
validationErrors.checkDisallowedField("maxValue", alterSequenceStatement.getMaxValue(), database, HsqlDatabase.class, H2Database.class);
validationErrors.checkDisallowedField("minValue", alterSequenceStatement.getMinValue(), database, H2Database.class);
validationErrors.checkDisallowedField("ordered", alterSequenceStatement.getOrdered(), database, HsqlDatabase.class, DB2Database.class);
validationErrors.checkRequiredField("sequenceName", alterSequenceStatement.getSequenceName());