MySQL Connector/C++ Fetching results

The API for fetching result sets is identical for (simple) statments and prepared statements. If your query returns one result set you should use sql::Statement::executeQuery() or sql::PreparedStatement::executeQuery() to run your query. Both methods return sql::ResultSet objects. The preview version does buffer all result sets on the client to support cursors.

// ...
sql::Connection *con;
sql::Statement *stmt
sql::ResultSet  *res;
// ...
stmt = con->createStatement();
// ...

res = stmt->executeQuery("SELECT id, label FROM test ORDER BY id ASC");
while (res->next()) {
  // You can use either numeric offsets...
  cout << "id = " << res->getInt(1); // getInt(1) returns the first column
  // ... or column names for accessing results.
  // The latter is recommended.
  cout << ", label = '" << res->getString("label") << "'" << endl;

delete res;
delete stmt;
delete con;


Note in the preceding code snippet that column indexing starts from 1.

Note that you have to free sql::Statement, sql::Connection and sql::ResultSet objects explicitly using delete.

The usage of cursors is demonstrated in the examples contained in the download package.

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