большая выборкой

vector <rec*> rules;
vector <String> allrules;
IBQuery1->SQL->Clear();
IBQuery1->SQL->Add("SELECT * FROM MDB_RULES");
IBQuery1->Open();
IBQuery2->SQL->Clear();
IBQuery2->SQL->Add("SELECT MAX(ID) FROM RULES");
IBQuery2->Open();
int id = IBQuery2->Fields->Fields[0]->AsInteger+1;
String from;
String to;
while(!(IBQuery1->Eof)){
        rec* r = new rec(IBQuery1->Fields->Fields[0]->AsString,IBQuery1->Fields->Fields[2]->AsString,IBQuery1->Fields->Fields[3]->AsString);
        rules.push_back(r);
        IBQuery1->Next();
}
IBQuery1->SQL->Clear();
IBQuery1->SQL->Add("SELECT RULES FROM MDB_WORDS WHERE (MDB_WORD_ID >= 1) AND (MDB_WORD_ID <= 1000)");
IBQuery1->Open();
while(!(IBQuery1->Eof)){
        String s = IBQuery1->Fields->Fields[0]->AsString;
        allrules.push_back(s);
        IBQuery1->Next();
}
for(int i = 0; i < allrules.size(); i++){
        String s = "";
        for(int j = 1; j <= allrules.at(i).Length(); j++){
                if(allrules.at(i)[j]!=';'){
                        s += allrules.at(i)[j];
                }else{
                        for(int k = 0; k < rules.size(); k++)if(rules.at(k)->id == s){
                                from = rules.at(k)->from;
                                to = rules.at(k)->to;
                        }
                        IBQuery2->SQL->Clear();
                        IBQuery2->SQL->Add("INSERT INTO RULES VALUES ("+(String)id+","+(String)(i+1)+","+QuotedStr(from)+","+QuotedStr(to)+")");
                        IBQuery2->ExecSQL();
                        id++;
                        s = "";
                }
        }
}
rules.clear();
allrules.clear();

IBQuery1->SQL->Add("SELECT RULES FROM MDB_WORDS WHERE (MDB_WORD_ID >= 1) AND (MDB_WORD_ID <= 1000)");
IBQuery1->Open(); // !!! Ошибка?