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+// file : schema/embedded/database.hxx
+// copyright : not copyrighted - public domain
+
+//
+// Create concrete database instance based on the DATABASE_* macros.
+//
+
+#ifndef DATABASE_HXX
+#define DATABASE_HXX
+
+#include <string>
+#include <memory> // std::unique_ptr
+#include <cstdlib> // std::exit
+#include <iostream>
+
+#include <odb/database.hxx>
+
+#if defined(DATABASE_MYSQL)
+# include <odb/mysql/database.hxx>
+#elif defined(DATABASE_SQLITE)
+# include <odb/sqlite/database.hxx>
+#elif defined(DATABASE_PGSQL)
+# include <odb/pgsql/database.hxx>
+#elif defined(DATABASE_ORACLE)
+# include <odb/oracle/database.hxx>
+#elif defined(DATABASE_MSSQL)
+# include <odb/mssql/database.hxx>
+#else
+# error unknown database; did you forget to define the DATABASE_* macros?
+#endif
+
+inline std::unique_ptr<odb::database>
+create_database (int& argc, char* argv[])
+{
+ using namespace std;
+ using namespace odb::core;
+
+ if (argc > 1 && argv[1] == string ("--help"))
+ {
+ cout << "Usage: " << argv[0] << " [options]" << endl
+ << "Options:" << endl;
+
+#if defined(DATABASE_MYSQL)
+ odb::mysql::database::print_usage (cout);
+#elif defined(DATABASE_SQLITE)
+ odb::sqlite::database::print_usage (cout);
+#elif defined(DATABASE_PGSQL)
+ odb::pgsql::database::print_usage (cout);
+#elif defined(DATABASE_ORACLE)
+ odb::oracle::database::print_usage (cout);
+#elif defined(DATABASE_MSSQL)
+ odb::mssql::database::print_usage (cout);
+#endif
+
+ exit (0);
+ }
+
+#if defined(DATABASE_MYSQL)
+ unique_ptr<database> db (new odb::mysql::database (argc, argv));
+#elif defined(DATABASE_SQLITE)
+ unique_ptr<database> db (
+ new odb::sqlite::database (
+ argc, argv, false, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE));
+#elif defined(DATABASE_PGSQL)
+ unique_ptr<database> db (new odb::pgsql::database (argc, argv));
+#elif defined(DATABASE_ORACLE)
+ unique_ptr<database> db (new odb::oracle::database (argc, argv));
+#elif defined(DATABASE_MSSQL)
+ unique_ptr<database> db (
+ new odb::mssql::database (argc, argv, false, "TrustServerCertificate=yes"));
+#endif
+
+ return db;
+}
+
+#endif // DATABASE_HXX