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https://github.com/cuberite/SQLiteCpp.git
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85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/**
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* @file main.cpp
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* @brief A few short examples in a row.
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*
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* Demonstrates how-to use the SQLite++ wrapper
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*
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* Copyright (c) 2012-2023 Sebastien Rombauts (sebastien.rombauts@gmail.com)
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*
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* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
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* or copy at http://opensource.org/licenses/MIT)
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*/
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#include <iostream>
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#include <cstdio>
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#include <cstdlib>
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#include <SQLiteCpp/SQLiteCpp.h>
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#ifdef SQLITECPP_ENABLE_ASSERT_HANDLER
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namespace SQLite
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{
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/// definition of the assertion handler enabled when SQLITECPP_ENABLE_ASSERT_HANDLER is defined in the project (CMakeList.txt)
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void assertion_failed(const char* apFile, const long apLine, const char* apFunc, const char* apExpr, const char* apMsg)
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{
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// Print a message to the standard error output stream, and abort the program.
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std::cerr << apFile << ":" << apLine << ":" << " error: assertion failed (" << apExpr << ") in " << apFunc << "() with message \"" << apMsg << "\"\n";
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std::abort();
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}
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}
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#endif
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int main ()
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{
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// Using SQLITE_VERSION would require #include <sqlite3.h> which we want to avoid: use SQLite::VERSION if possible.
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// std::cout << "SQlite3 version " << SQLITE_VERSION << std::endl;
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std::cout << "SQlite3 version " << SQLite::VERSION << " (" << SQLite::getLibVersion() << ")" << std::endl;
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std::cout << "SQliteC++ version " << SQLITECPP_VERSION << std::endl;
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////////////////////////////////////////////////////////////////////////////
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// Simple batch queries example :
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try
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{
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// Open a database file in create/write mode
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SQLite::Database db("test.db3", SQLite::OPEN_READWRITE|SQLite::OPEN_CREATE);
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std::cout << "SQLite database file '" << db.getFilename().c_str() << "' opened successfully\n";
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// Create a new table with an explicit "id" column aliasing the underlying rowid
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db.exec("DROP TABLE IF EXISTS test");
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db.exec("CREATE TABLE test (id INTEGER PRIMARY KEY, value TEXT)");
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// first row
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int nb = db.exec("INSERT INTO test VALUES (NULL, \"test\")");
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std::cout << "INSERT INTO test VALUES (NULL, \"test\")\", returned " << nb << std::endl;
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// second row
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nb = db.exec("INSERT INTO test VALUES (NULL, \"second\")");
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std::cout << "INSERT INTO test VALUES (NULL, \"second\")\", returned " << nb << std::endl;
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// update the second row
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nb = db.exec("UPDATE test SET value=\"second-updated\" WHERE id='2'");
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std::cout << "UPDATE test SET value=\"second-updated\" WHERE id='2', returned " << nb << std::endl;
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// Check the results : expect two row of result
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SQLite::Statement query(db, "SELECT * FROM test");
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std::cout << "SELECT * FROM test :\n";
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while (query.executeStep())
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{
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std::cout << "row (" << query.getColumn(0) << ", \"" << query.getColumn(1) << "\")\n";
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}
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db.exec("DROP TABLE test");
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}
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catch (std::exception& e)
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{
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std::cout << "SQLite exception: " << e.what() << std::endl;
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return EXIT_FAILURE; // unexpected error : exit the example program
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}
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remove("test.db3");
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std::cout << "everything ok, quitting\n";
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return EXIT_SUCCESS;
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}
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