74 lines
2.9 KiB
C#
74 lines
2.9 KiB
C#
using TDengineDriver;
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namespace TDengineExample
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{
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internal class OptsTelnetExample
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{
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static void Main()
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{
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IntPtr conn = GetConnection();
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try
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{
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PrepareDatabase(conn);
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string[] lines = {
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"meters.current 1648432611249 10.3 location=California.SanFrancisco groupid=2",
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"meters.current 1648432611250 12.6 location=California.SanFrancisco groupid=2",
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"meters.current 1648432611249 10.8 location=California.LosAngeles groupid=3",
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"meters.current 1648432611250 11.3 location=California.LosAngeles groupid=3",
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"meters.voltage 1648432611249 219 location=California.SanFrancisco groupid=2",
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"meters.voltage 1648432611250 218 location=California.SanFrancisco groupid=2",
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"meters.voltage 1648432611249 221 location=California.LosAngeles groupid=3",
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"meters.voltage 1648432611250 217 location=California.LosAngeles groupid=3",
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};
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IntPtr res = TDengine.SchemalessInsert(conn, lines, lines.Length, (int)TDengineSchemalessProtocol.TSDB_SML_TELNET_PROTOCOL, (int)TDengineSchemalessPrecision.TSDB_SML_TIMESTAMP_NOT_CONFIGURED);
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if (TDengine.ErrorNo(res) != 0)
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{
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throw new Exception("SchemalessInsert failed since " + TDengine.Error(res));
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}
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else
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{
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int affectedRows = TDengine.AffectRows(res);
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Console.WriteLine($"SchemalessInsert success, affected {affectedRows} rows");
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}
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TDengine.FreeResult(res);
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}
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catch
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{
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TDengine.Close(conn);
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}
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}
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static IntPtr GetConnection()
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{
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string host = "localhost";
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short port = 6030;
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string username = "root";
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string password = "taosdata";
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string dbname = "";
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var conn = TDengine.Connect(host, username, password, dbname, port);
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if (conn == IntPtr.Zero)
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{
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throw new Exception("Connect to TDengine failed");
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}
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else
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{
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Console.WriteLine("Connect to TDengine success");
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}
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return conn;
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}
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static void PrepareDatabase(IntPtr conn)
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{
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IntPtr res = TDengine.Query(conn, "CREATE DATABASE test WAL_RETENTION_PERIOD 3600");
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if (TDengine.ErrorNo(res) != 0)
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{
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throw new Exception("failed to create database, reason: " + TDengine.Error(res));
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}
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res = TDengine.Query(conn, "USE test");
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if (TDengine.ErrorNo(res) != 0)
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{
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throw new Exception("failed to change database, reason: " + TDengine.Error(res));
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}
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}
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}
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}
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