'your_username', 'password': 'your_password', 'host': 'your_host', 'port': 'your_port' } # 连接到数据库 try: conn = psycopg2.connect(**conn_params) print("Connected to the database successfully") except Exception as error: print(f"Error while connecting to PostgreSQL: {error}") ...
rs.close(); }catch(Exception exc1) { System.out.println("There's some exception happend while rs closed!"); } System.out.println("--ResultSet has been closed!"); } //关闭数据库连接 public void Close() { try { if(rs!=null) { rs.close(); } if(stmt!=null) { stmt.close();...
1. Exception on client: AI检测代码解析 Code: 117. DB::Exception: Unknown field found while parsing JSONEachRow format: n Connecting to 192.168.0.200:9000 as user default. Connected to ClickHouse server version 20.1.4 revision 54431. 1. 2. 3. 五、Parquet数据格式 支持Parquet格式的导出和导入。
catch(Exception e){ System.out.println("Error loading mysql driver!"); e.printStackTrace(); } try{ //second:connect sql server Connection connect = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/test","root","123456"); System.out.println("success connecting mysql server!"); //t...