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C++ Database::GetTable方法代码示例

本文整理汇总了C++中Database::GetTable方法的典型用法代码示例。如果您正苦于以下问题：C++ Database::GetTable方法的具体用法？C++ Database::GetTable怎么用？C++ Database::GetTable使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Database的用法示例。


在下文中一共展示了Database::GetTable方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: GetDatabase

		Database GetDatabase()
		{
			Database db;

			Field f1("testInt", Field::FieldType::int32, 10);
			Field f2("testStr", Field::FieldType::fixedchar, 30);

			/*Table schema1;
			schema1.AddField(f1);
			schema1.AddField(f2);

			db.CreateTable("table1", schema1);*/
			CreateTable create(&db);
			create.SetName("table1");
			create.AddField(f1);
			create.AddField(f2);
			create.Execute();

			Assert::IsTrue(db.HasTable("table1"));
			Assert::AreEqual(2, db.GetTable("table1").GetNumFields());

			Field f3("strTest", Field::FieldType::fixedchar, 30);
			Field f4("intTest", Field::FieldType::int32, 10);

			Table schema2;
			schema2.AddField(f3);
			schema2.AddField(f4);

			db.CreateTable("table2", schema2);

			Assert::IsTrue(db.HasTable("table2"));
			Assert::AreEqual(2, db.GetTable("table2").GetNumFields());

			return db;
		}
开发者ID:stormbreakerbg，项目名称:stormsql，代码行数:35，代码来源:DatabaseTests.cpp

示例2: CreateTable

void API::CreateTable(SQLCreateTable& statement)
{
	cout << "Creating table: " << statement.get_tb_name() << endl;
	if (current_db_.length() == 0) throw NoDatabaseSelectedException();

	Database *db = catalog_m_->GetDB(current_db_);
	if (db == NULL) throw DatabaseNotExistException();
	if (db->GetTable(statement.get_tb_name()) != NULL) throw TableAlreadyExistsException();

	string file_name(path_ + current_db_ + "/" + statement.get_tb_name() + ".records");
	boost::filesystem::path folder_path(file_name);

	if (boost::filesystem::exists(folder_path))
	{
		boost::filesystem::remove_all(folder_path);
		cout << "Table file exists and deleted!" << endl;
	}

	ofstream ofs(file_name);
	ofs.close();

	cout << "Table file created!" << endl;
	db->CreateTable(statement);

	cout << "Catalog written!" << endl;
	catalog_m_->WriteArchiveFile();
}
开发者ID:rockhacker，项目名称:BeetleDB，代码行数:27，代码来源:API.cpp

示例3: CreateTable

/*创建数据表 找出要创建数据表的数据库;操作对应文件;利用catalog Manager实现对应数据表的创建*/
void API::CreateTable(SQLCreateTable& sql_statement)
{
	cout << "创建表: " << sql_statement.get_table_name() << endl;
	if (current_database_.length() == 0) throw NoDatabaseSelectedException();/*判断当前数据库是否选中*/
	Database *db = catalog_manager_->GetDB(current_database_);
	if (db == NULL) throw DatabaseNotExistException();/*【catalog Manager】判断当前数据库是否存在*/
	if (db->GetTable(sql_statement.get_table_name()) != NULL) throw TableAlreadyExistsException();/*【catalog Manager】判断当前数据库是否已有该数据表*/

	string file_name(path_ + current_database_ + "/" + sql_statement.get_table_name() + ".records");
	boost::filesystem::path folder_path(file_name);/*【file System】利用boost库为该table创建文件*/

	if (boost::filesystem::exists(folder_path))/*【file System】利用boost库判断该文件地址是否已存在。存在则删除。不存在则继续执行*/
	{
		boost::filesystem::remove_all(folder_path);/*【file System】利用boost库删除该文件地址对应文件*/
		cout << "数据表文件已存在，并已删除。" << endl;
	}
	ofstream ofs(file_name);/*【file System】创建该文件地址对应文件*/
	ofs.close();
	cout << "数据表文件已创建。" << endl;

	db->CreateTable(sql_statement);/*【catalog Manager】在该database中创建该数据表*/

	cout << "目录管理已写入" << endl<<endl;
	//【catalog Manager】在catalog中写文档
	catalog_manager_->WriteArchiveFile();

	//cout << "在当前数据库中创建数据表" + sql_statement.get_table_name()<< endl;
}
开发者ID:XuJing1022，项目名称:DataBaseProject，代码行数:29，代码来源:API.cpp

示例4: InsertData

		void InsertData(Database& db)
		{
			Insert insert(&db.GetTable("table1"));
			insert.SetInt(0, 1);
			insert.SetString(1, "testString");
			insert.Execute();

			insert.SetInt(0, 2);
			insert.SetString(1, "anotherTest");
			insert.Execute();

			Insert insert2(&db.GetTable("table2"));
			insert2.SetString(0, "stringTest");
			insert2.SetInt(1, 3);
			insert2.Execute();

			insert2.SetString(0, "anotherTest");
			insert2.SetInt(1, 4);
			insert2.Execute();
		}
开发者ID:stormbreakerbg，项目名称:stormsql，代码行数:20，代码来源:DatabaseTests.cpp

示例5: Update

void API::Update(SQLUpdate& statement)
{
	if (current_db_.length() == 0) throw NoDatabaseSelectedException();
	Database *db = catalog_m_->GetDB(current_db_);
	if (db == NULL) throw DatabaseNotExistException();

	Table *tb = db->GetTable(statement.get_tb_name());
	if (tb == NULL) throw TableNotExistException();
	
	RecordManager *rm = new RecordManager(catalog_m_, buffer_m_, current_db_);
	rm->Update(statement);
	delete rm;
}
开发者ID:rockhacker，项目名称:BeetleDB，代码行数:13，代码来源:API.cpp

示例6: CreateIndex

void API::CreateIndex(SQLCreateIndex& statement)
{
	cout << "Creating Index: " << statement.get_index_name() << endl;
	if (current_db_.length() == 0) throw NoDatabaseSelectedException();
	
	Database *db = catalog_m_->GetDB(current_db_);
	if (db->GetTable(statement.get_tb_name()) == NULL) throw TableNotExistException();
	if (db->CheckIfIndexExists(statement.get_index_name()) ) throw IndexAlreadyExistsException();

	IndexManager *im = new IndexManager(catalog_m_, buffer_m_, current_db_);
	im->CreateIndex(statement);
	delete im;
}
开发者ID:rockhacker，项目名称:BeetleDB，代码行数:13，代码来源:API.cpp

示例7: DropTable

/*删除数据表*/
void API::DropTable(SQLDropTable& sql_statement)
{
	cout << "Droping table: " << sql_statement.get_table_name() << endl;
	if (current_database_.length() == 0)/*判断当前数据库是否选定*/
	{
		throw NoDatabaseSelectedException();
	}

	Database *db = catalog_manager_->GetDB(current_database_);
	if (db == NULL)/*判断该当前数据库是否存在*/
	{
		throw DatabaseNotExistException();
	}

	Table *tb = db->GetTable(sql_statement.get_table_name());
	if (tb == NULL)/*判断该数据库是否存在数据表*/
	{
		throw TableNotExistException();
	}
	string file_name(path_ + current_database_ + "/" + sql_statement.get_table_name() + ".records");/*获取该数据表的文件地址*/

	if (!boost::filesystem::exists(file_name))/*【file system】利用boost库判断该文件是否存在*/
	{
		cout << sql_statement.get_table_name() +" 数据表文件不存在。" << endl;
	}
	else
	{
		boost::filesystem::remove(file_name);/*【file system】利用boost库删除该文件*/
		cout << sql_statement.get_table_name() + "数据表文件已删除。" << endl;
	}

	cout << "删除数据表下索引文件。" << endl;
	for (unsigned int i = 0; i < tb->GetIndexNum(); i++)
	{
		string file_name(path_ + current_database_ + "/" + tb->GetIndex(i)->get_name() + ".index");/*获取该数据表的文件地址*/
		if (!boost::filesystem::exists(file_name))/*【file system】利用boost库判断该文件是否存在*/
		{
			cout << "索引文件不存在。" << endl;
		}
		else
		{
			boost::filesystem::remove(file_name);
			cout << "索引文件已删除" << endl;
		}
	}

	db->DropTable(sql_statement);/*【catalog manager】在目录中删除该数据表*/
	cout << "目录文件已写入。" << endl;
	catalog_manager_->WriteArchiveFile();/*【catalog manager】在catalog中写文档*/
	//cout << "删除数据表。" << endl;
}
开发者ID:XuJing1022，项目名称:DataBaseProject，代码行数:52，代码来源:API.cpp

示例8: Update

/*更新数据*/
void API::Update(SQLUpdate& sql_statement)
{
	if (current_database_.length() == 0)/*判断当前数据库是否选定*/
	{
		throw NoDatabaseSelectedException();
	}
	Database *db = catalog_manager_->GetDB(current_database_);
	if (db == NULL)/*判断当前数据库是否存在*/
	{
		throw DatabaseNotExistException();
	}
	Table *tb = db->GetTable(sql_statement.get_tb_name());
	if (tb == NULL)/*判断数据表是否存在是否存在*/
	{
		throw TableNotExistException();
	}
	RecordManager *rm = new RecordManager(catalog_manager_, buffer_manager_, current_database_);
	rm->Update(sql_statement);
	delete rm;
	//cout << "更新数据" << endl;
}
开发者ID:XuJing1022，项目名称:DataBaseProject，代码行数:22，代码来源:API.cpp

示例9: DropTable

void API::DropTable(SQLDropTable& statement)
{
	cout << "Droping table: " << statement.get_tb_name() << endl;
	if (current_db_.length() == 0) throw NoDatabaseSelectedException();

	Database *db = catalog_m_->GetDB(current_db_);
	if (db == NULL) throw DatabaseNotExistException();

	Table *tb = db->GetTable(statement.get_tb_name());
	if (tb == NULL) throw TableNotExistException();
	
	string file_name(path_ + current_db_ + "/" + statement.get_tb_name() + ".records");

	if (!boost::filesystem::exists(file_name)) cout << "Table file doesn't exists!" << endl;
	else
	{
		boost::filesystem::remove(file_name);
		cout << "Table file deleted!" << endl;
	}

	cout << "Removing Index files!" << endl;
	for (unsigned int i = 0; i < tb->GetIndexNum(); i++)
	{
		string file_name(path_ + current_db_ + "/" + tb->GetIndex(i)->get_name() + ".index");
		if (!boost::filesystem::exists(file_name)) cout << "Index file doesn't exist!" << endl;
		else
		{
			boost::filesystem::remove(file_name);
			cout << "Index file removed!" << endl;
		}
	}

	db->DropTable(statement);
	cout << "Catalog written!" << endl;
	catalog_m_->WriteArchiveFile();
}
开发者ID:rockhacker，项目名称:BeetleDB，代码行数:36，代码来源:API.cpp


注：本文中的Database::GetTable方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。