68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// TAOS standard API example. The same syntax as MySQL, but only a subset
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// to compile: gcc -o insert_data_demo insert_data_demo.c -ltaos
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "taosws.h"
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static int DemoInsertData() {
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// ANCHOR: insert_data
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int code = 0;
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char *dsn = "ws://localhost:6041";
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// connect
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WS_TAOS *taos = ws_connect(dsn);
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if (taos == NULL) {
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fprintf(stderr, "Failed to connect to %s, ErrCode: 0x%x, ErrMessage: %s.\n", dsn, ws_errno(NULL), ws_errstr(NULL));
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return -1;
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}
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// insert data, please make sure the database and table are already created
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const char *sql =
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"INSERT INTO "
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"power.d1001 USING power.meters TAGS(2,'California.SanFrancisco') "
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"VALUES "
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"(NOW + 1a, 10.30000, 219, 0.31000) "
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"(NOW + 2a, 12.60000, 218, 0.33000) "
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"(NOW + 3a, 12.30000, 221, 0.31000) "
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"power.d1002 USING power.meters TAGS(3, 'California.SanFrancisco') "
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"VALUES "
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"(NOW + 1a, 10.30000, 218, 0.25000) ";
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WS_RES *result = ws_query(taos, sql);
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code = ws_errno(result);
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if (code != 0) {
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fprintf(stderr, "Failed to insert data to power.meters, sql: %s, ErrCode: 0x%x, ErrMessage: %s\n.", sql, code,
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ws_errstr(result));
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ws_close(taos);
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return -1;
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}
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ws_free_result(result);
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// you can check affectedRows here
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int rows = ws_affected_rows(result);
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fprintf(stdout, "Successfully inserted %d rows into power.meters.\n", rows);
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// close & clean
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ws_close(taos);
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return 0;
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// ANCHOR_END: insert_data
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}
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int main(int argc, char *argv[]) { return DemoInsertData(); }
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