这个有用吗？

TADOConnection *YOUR_TADOCONNECTION; // your connection defined earlier in your code

TStringList *TableList = new TStringList;
bool WithSystemTables = true; // or false according to your requirements
YOUR_TADOCONNECTION->GetTableNames(TableList, WithSystemTables);
for (int i = 0 i < TableList->Count(); i++) {
   String NextTableName = TableList->Strings[i];
   /*.... your check for the table name being the one you want goes here .... */
}
delete TableList;