83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/***********************************************************************
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tquery3.cpp - Similar to tquery1.cpp but uses unquoted parameters.
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It's here more for code test coverage than because it shows
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something interesting. We've historically had a problem with
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tqueries with just one parameter; we cover the quoted case in
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resetdb and the other tquery examples, so we get the unquoted
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one here.
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Copyright (c) 1998 by Kevin Atkinson, (c) 1999-2001 by MySQL AB, and
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(c) 2004-2009 by Educational Technology Resources, Inc. Others may
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also hold copyrights on code in this file. See the CREDITS.txt file
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in the top directory of the distribution for details.
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This file is part of MySQL++.
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MySQL++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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MySQL++ is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with MySQL++; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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***********************************************************************/
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#include "cmdline.h"
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#include "printdata.h"
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#include <iostream>
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using namespace std;
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int
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main(int argc, char *argv[])
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{
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// Get database access parameters from command line
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mysqlpp::examples::CommandLine cmdline(argc, argv);
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if (!cmdline) {
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return 1;
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}
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try {
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// Establish the connection to the database server.
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mysqlpp::Connection con(mysqlpp::examples::db_name,
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cmdline.server(), cmdline.user(), cmdline.pass());
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// Build a template query to retrieve item names for stock
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// entries with a quantity over some threshold.
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mysqlpp::Query query = con.query(
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"select item from stock where num > %0");
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query.parse();
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// Get a list of things we have lots of in stock
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if (mysqlpp::StoreQueryResult res = query.store(80)) {
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cout << "Stuff we have a lot of in stock:" << endl;
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for (size_t i = 0; i < res.num_rows(); ++i) {
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cout << '\t' << res[i]["item"] << endl;
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}
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}
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else {
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cerr << "Failed to get item list: " << query.error() << endl;
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return 1;
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}
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}
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catch (const mysqlpp::BadQuery& er) {
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// Handle any query errors
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cerr << "Query error: " << er.what() << endl;
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return 2;
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}
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catch (const mysqlpp::Exception& er) {
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// Catch-all for any other MySQL++ exceptions
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cerr << "Error: " << er.what() << endl;
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return 2;
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}
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return 0;
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}
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