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sqlpp11/tests/core/serialize/clause/select_as.cpp

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/*
* Copyright (c) 2024, 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 "Sample.h"
#include "../compare.h"
#include <sqlpp11/sqlpp11.h>
int main(int, char* [])
{
const auto foo = test::TabFoo{};
// SELECT a single value and use that as a table.
{
const auto s = sqlpp::select(foo.id).from(foo).unconditionally();
const auto a = s.as(sqlpp::alias::a);
SQLPP_COMPARE(s, "SELECT tab_foo.id FROM tab_foo");
SQLPP_COMPARE(a, "(SELECT tab_foo.id FROM tab_foo) AS a");
SQLPP_COMPARE(a.id, "a.id");
SQLPP_COMPARE(all_of(a), "a.id");
}
// SELECT a multiple values and use that as a table.
{
const auto s = sqlpp::select(foo.id, foo.intN).from(foo).unconditionally();
const auto a = s.as(sqlpp::alias::a);
SQLPP_COMPARE(s, "SELECT tab_foo.id, tab_foo.int_n FROM tab_foo");
SQLPP_COMPARE(a, "(SELECT tab_foo.id, tab_foo.int_n FROM tab_foo) AS a");
SQLPP_COMPARE(a.id, "a.id");
SQLPP_COMPARE(a.intN, "a.int_n");
SQLPP_COMPARE(all_of(a), "a.id, a.int_n");
}
return 0;
}