ClickHouse/base/mysqlxx/tests/mysqlxx_test.cpp

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#include <iostream>
#include <mysqlxx/mysqlxx.h>
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int main(int, char **)
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{
try
{
mysqlxx::Connection connection("test", "127.0.0.1", "root", "qwerty", 3306);
std::cerr << "Connected." << std::endl;
{
mysqlxx::Query query = connection.query();
query << "SELECT 1 x, '2010-01-01 01:01:01' d";
mysqlxx::UseQueryResult result = query.use();
std::cerr << "use() called." << std::endl;
while (mysqlxx::Row row = result.fetch())
{
std::cerr << "Fetched row." << std::endl;
std::cerr << row[0] << ", " << row["x"] << std::endl;
std::cerr << row[1] << ", " << row["d"]
<< ", " << row[1].getDate()
<< ", " << row[1].getDateTime()
<< ", " << row[1].getDate()
<< ", " << row[1].getDateTime()
<< std::endl
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<< row[1].getDate() << ", " << row[1].getDateTime() << std::endl
<< row[1].getDate() << ", " << row[1].getDateTime() << std::endl
<< row[1].getDate() << ", " << row[1].getDateTime() << std::endl
<< row[1].getDate() << ", " << row[1].getDateTime() << std::endl
;
time_t t1 = row[0];
time_t t2 = row[1];
std::cerr << t1 << ", " << LocalDateTime(t1) << std::endl;
std::cerr << t2 << ", " << LocalDateTime(t2) << std::endl;
}
}
{
mysqlxx::Query query = connection.query();
query << "SELECT 1234567890 abc, 12345.67890 def UNION ALL SELECT 9876543210, 98765.43210";
mysqlxx::StoreQueryResult result = query.store();
std::cerr << result.at(0)["abc"].getUInt() << ", " << result.at(0)["def"].getDouble() << std::endl
<< result.at(1)["abc"].getUInt() << ", " << result.at(1)["def"].getDouble() << std::endl;
}
{
mysqlxx::UseQueryResult result = connection.query("SELECT 'abc\\\\def' x").use();
mysqlxx::Row row = result.fetch();
std::cerr << row << std::endl;
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std::cerr << row << std::endl;
}
{
mysqlxx::Query query = connection.query("SEL");
query << "ECT 1";
std::cerr << query.store().at(0).at(0) << std::endl;
}
{
/// Копирование Query
mysqlxx::Query query = connection.query("SELECT 'Ok' x");
using Queries = std::vector<mysqlxx::Query>;
Queries queries;
queries.push_back(query);
for (auto & q : queries)
{
std::cerr << q.str() << std::endl;
std::cerr << q.store().at(0) << std::endl;
}
}
{
/// Копирование Query
mysqlxx::Query query1 = connection.query("SELECT");
mysqlxx::Query query2 = query1;
query2 << " 1";
std::cerr << query1.str() << ", " << query2.str() << std::endl;
}
{
/// Копирование Query
using Queries = std::list<mysqlxx::Query>;
Queries queries;
queries.push_back(connection.query("SELECT"));
mysqlxx::Query & qref = queries.back();
qref << " 1";
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for (auto & query : queries)
{
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std::cerr << query.str() << std::endl;
std::cerr << query.store().at(0) << std::endl;
}
}
{
/// Транзакции
connection.query("DROP TABLE IF EXISTS tmp").execute();
connection.query("CREATE TABLE tmp (x INT, PRIMARY KEY (x)) ENGINE = InnoDB").execute();
mysqlxx::Transaction trans(connection);
connection.query("INSERT INTO tmp VALUES (1)").execute();
std::cerr << connection.query("SELECT * FROM tmp").store().size() << std::endl;
trans.rollback();
std::cerr << connection.query("SELECT * FROM tmp").store().size() << std::endl;
}
{
/// Транзакции
connection.query("DROP TABLE IF EXISTS tmp").execute();
connection.query("CREATE TABLE tmp (x INT, PRIMARY KEY (x)) ENGINE = InnoDB").execute();
{
mysqlxx::Transaction trans(connection);
connection.query("INSERT INTO tmp VALUES (1)").execute();
std::cerr << connection.query("SELECT * FROM tmp").store().size() << std::endl;
}
std::cerr << connection.query("SELECT * FROM tmp").store().size() << std::endl;
}
{
/// Транзакции
mysqlxx::Connection connection2("test", "127.0.0.1", "root", "qwerty", 3306);
connection2.query("DROP TABLE IF EXISTS tmp").execute();
connection2.query("CREATE TABLE tmp (x INT, PRIMARY KEY (x)) ENGINE = InnoDB").execute();
mysqlxx::Transaction trans(connection2);
connection2.query("INSERT INTO tmp VALUES (1)").execute();
std::cerr << connection2.query("SELECT * FROM tmp").store().size() << std::endl;
}
std::cerr << connection.query("SELECT * FROM tmp").store().size() << std::endl;
{
/// NULL
mysqlxx::Null<int> x = mysqlxx::null;
std::cerr << (x == mysqlxx::null ? "Ok" : "Fail") << std::endl;
std::cerr << (x == 0 ? "Fail" : "Ok") << std::endl;
std::cerr << (x.isNull() ? "Ok" : "Fail") << std::endl;
x = 1;
std::cerr << (x == mysqlxx::null ? "Fail" : "Ok") << std::endl;
std::cerr << (x == 0 ? "Fail" : "Ok") << std::endl;
std::cerr << (x == 1 ? "Ok" : "Fail") << std::endl;
std::cerr << (x.isNull() ? "Fail" : "Ok") << std::endl;
}
{
/// Исключения при попытке достать значение не того типа
try
{
connection.query("SELECT -1").store().at(0).at(0).getUInt();
std::cerr << "Fail" << std::endl;
}
catch (const mysqlxx::Exception & e)
{
std::cerr << "Ok, " << e.message() << std::endl;
}
try
{
connection.query("SELECT 'xxx'").store().at(0).at(0).getInt();
std::cerr << "Fail" << std::endl;
}
catch (const mysqlxx::Exception & e)
{
std::cerr << "Ok, " << e.message() << std::endl;
}
try
{
connection.query("SELECT NULL").store().at(0).at(0).getString();
std::cerr << "Fail" << std::endl;
}
catch (const mysqlxx::Exception & e)
{
std::cerr << "Ok, " << e.message() << std::endl;
}
try
{
connection.query("SELECT 123").store().at(0).at(0).getDate();
std::cerr << "Fail" << std::endl;
}
catch (const mysqlxx::Exception & e)
{
std::cerr << "Ok, " << e.message() << std::endl;
}
try
{
connection.query("SELECT '2011-01-01'").store().at(0).at(0).getDateTime();
std::cerr << "Fail" << std::endl;
}
catch (const mysqlxx::Exception & e)
{
std::cerr << "Ok, " << e.message() << std::endl;
}
}
}
catch (const mysqlxx::Exception & e)
{
std::cerr << e.code() << ", " << e.message() << std::endl;
throw;
}
return 0;
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}