/* * Copyright (c) 2013 - 2016, Roland Bock * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "TabSample.h" #include #include #ifdef SQLPP_USE_SQLCIPHER #include #else #include #endif #include namespace sql = sqlpp::sqlite3; const auto tab = TabSample{}; int main() { sql::connection_config config; config.path_to_database = ":memory:"; config.flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE; config.debug = true; sql::connection db(config); db.execute(R"(CREATE TABLE tab_sample ( alpha INTEGER PRIMARY KEY, beta varchar(255) DEFAULT NULL, gamma bool DEFAULT NULL ))"); auto u = select(all_of(tab)).from(tab).unconditionally().union_all(select(all_of(tab)).from(tab).unconditionally()); for (const auto& row : db(u)) { std::cout << row.alpha << row.beta << row.gamma << std::endl; } for (const auto& row : db(u.union_distinct(select(all_of(tab)).from(tab).unconditionally()))) { std::cout << row.alpha << row.beta << row.gamma << std::endl; } return 0; }