70 lines
2.8 KiB
C#
70 lines
2.8 KiB
C#
using TDengineDriver;
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namespace TDengineExample
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{
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internal class SQLInsertExample
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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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IntPtr res = TDengine.Query(conn, "CREATE DATABASE power");
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CheckRes(conn, res, "failed to create database");
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res = TDengine.Query(conn, "USE power");
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CheckRes(conn, res, "failed to change database");
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res = TDengine.Query(conn, "CREATE STABLE power.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)");
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CheckRes(conn, res, "failed to create stable");
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var sql = "INSERT INTO d1001 USING meters TAGS('California.SanFrancisco', 2) VALUES ('2018-10-03 14:38:05.000', 10.30000, 219, 0.31000) ('2018-10-03 14:38:15.000', 12.60000, 218, 0.33000) ('2018-10-03 14:38:16.800', 12.30000, 221, 0.31000) " +
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"d1002 USING power.meters TAGS('California.SanFrancisco', 3) VALUES('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000) " +
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"d1003 USING power.meters TAGS('California.LosAngeles', 2) VALUES('2018-10-03 14:38:05.500', 11.80000, 221, 0.28000)('2018-10-03 14:38:16.600', 13.40000, 223, 0.29000) " +
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"d1004 USING power.meters TAGS('California.LosAngeles', 3) VALUES('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000)('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)";
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res = TDengine.Query(conn, sql);
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CheckRes(conn, res, "failed to insert data");
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int affectedRows = TDengine.AffectRows(res);
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Console.WriteLine("affectedRows " + affectedRows);
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ExitProgram(conn, 0);
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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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Console.WriteLine("Connect to TDengine failed");
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Environment.Exit(0);
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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 CheckRes(IntPtr conn, IntPtr res, String errorMsg)
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{
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if (TDengine.ErrorNo(res) != 0)
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{
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Console.Write(errorMsg + " since: " + TDengine.Error(res));
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ExitProgram(conn, 1);
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}
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}
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static void ExitProgram(IntPtr conn, int exitCode)
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{
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TDengine.Close(conn);
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TDengine.Cleanup();
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Environment.Exit(exitCode);
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}
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}
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}
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// output:
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// Connect to TDengine success
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// affectedRows 8
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