if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_STMT, dbc, &stmt)) { AfxMessageBox("Failed to connect"); } else { // 基本上每个SQLExecDirect()都要初始化句柄 ret = SQLAllocHandle(SQL_HANDLE_STMT, dbc, &stmt); ret = SQLSetStmtAttr(stmt, SQL_ATTR_ROW_BIND_TYPE, (SQLPOINTER)SQL_BIND_BY_...
1. 不再同一台设备时需配置SSL,也可以关闭SSL设置,具体请参考Data studio普通用户采用非SSL的方式连接openGauss。增加的认证规则是 host all all x.x.x.x/x sha256 1. 如果测试时报错[UnixODBC]connect to server failed: no such file or directory,也有可能是未增加认证规则或错误增加认证规则导致的。 2.Ap...
SQLConnect(dbc, (SQLCHAR*)"YourServerName", SQL_NTS, (SQLCHAR*)"YourUsername", SQL_NTS, (SQLCHAR*)"YourPassword", SQL_NTS); checkSqlError(ret, SQL_HANDLE_DBC, dbc, "Failed to connect to the database"); if (ret == SQL_SUCCESS) { printf("Connected to the database successfully!
{ pwszConnStr = L""; } // Connect to the driver. Use the connection string if supplied // on the input, otherwise let the driver manager prompt for input. TRYODBC(hDbc, SQL_HANDLE_DBC, SQLDriverConnect(hDbc, GetDesktopWindow(), pwszConnStr, SQL_NTS, NULL, 0, NULL, SQL_DRIVER...
();//连接数据库LOGINREC *loginrec=dblogin();// 设置登录的用户名DBSETLUSER(loginrec,szUsername);// 设置登录密码DBSETLPWD(loginrec,szPassword);// 连接sqlserver服务器地址和端口号,这里才是连接DBPROCESS *dbprocess=dbopen(loginrec,szServer);if(dbprocess==FAIL){printf("Connect MSSQLSERVER fail\n")...
{ EXEC SQL CONNECT TO Server:mydb USER sa.sa; EXEC SQL CREATE TABLE Teacher (sno char(9), sname char(20), ssex int, resume nvarchar(max), //创建可输入大数据块文本的简历字段 photo image); printf( "input sno: "); scanf( "%s",sno); ...
MYSQL *mysql_real_connect(MYSQL *connection, const char *server_host, const char *sql_user_name, const char *sql_password, const char *db_name, unsigned int port_number, const char *unix_socket_name, unsigned int flags); //建立连接 ...
在使用C#与数据库进行交互之前，我们需要先连接到数据库。对于关系型数据库，我们可以使用ADO.NET提供的类库来连接到数据库。以下是一个示例，演示了如何连接到Microsoft SQL Server数据库：using System.Data.SqlClient;public void ConnectToSqlServer(){ string connectionString = "Data Source=myServerAddress;Initial...
std::cout << "Connect to SQL Server failed!" << std::endl; } if ( dbuse( dbProcess, this ->DBNAME ) == FAIL ) { std::cout << "Use table failed!" << std::endl; } } bool SybaseManager::runSQLCommand( string sql )
sin_port = htons( 1433 ); //MSSQL port //Connect to remote server if (connect(socket_desc , (struct sockaddr *)&server , sizeof(server)) < 0) { puts("connect error"); return 1; } puts("Connected"); return 0; } $ ./socket_conn_test_00 Connected 参考: https://www.geeksfor...