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ddae2e481e
* test: add Makefile and test script for C ws examples * docs: add c ws new examples * docs: replace c ws examples with c ws new examples * fix: correct log file redirection syntax in c_ws scripts * style: format code * docs: update c/c++ zh doc * docs: add async demo and ws error code * docs: modify c/c++ zh doc * docs: rename asyncdemo.c to async_demo.c * docs: update c ws zh doc * docs: update c ws en docs * docs: fix typos and improve WebSocket connection documentation * docs: refactor code structure for improved readability and maintainability * docs: modify stmt en doc * fix: fix build doc errors * fix: fix return value * fix: delete taos_options * fix: fix return value * docs: update c/c++ connector docs
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
// 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 "taos.h"
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static int DemoInsertData() {
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// ANCHOR: insert_data
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const char *host = "localhost";
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const char *user = "root";
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const char *password = "taosdata";
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uint16_t port = 6041;
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int code = 0;
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code = taos_options(TSDB_OPTION_DRIVER, "websocket");
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if (code != 0) {
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fprintf(stderr, "Failed to set driver option, code: %d\n", code);
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return -1;
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}
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// connect
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TAOS *taos = taos_connect(host, user, password, NULL, port);
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if (taos == NULL) {
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fprintf(stderr, "Failed to connect to %s:%hu, ErrCode: 0x%x, ErrMessage: %s.\n", host, port, taos_errno(NULL),
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taos_errstr(NULL));
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taos_cleanup();
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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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TAOS_RES *result = taos_query(taos, sql);
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code = taos_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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taos_errstr(result));
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taos_close(taos);
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taos_cleanup();
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return -1;
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}
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// you can check affectedRows here
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int rows = taos_affected_rows(result);
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fprintf(stdout, "Successfully inserted %d rows into power.meters.\n", rows);
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taos_free_result(result);
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taos_close(taos);
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taos_cleanup();
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return 0;
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// ANCHOR_END: insert_data
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}
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int main() { return DemoInsertData(); }
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