47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
// compile with
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// gcc -o line_example line_example.c -ltaos
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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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void executeSQL(TAOS *taos, const char *sql) {
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TAOS_RES *res = taos_query(taos, sql);
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int code = taos_errno(res);
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if (code != 0) {
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printf("%s\n", taos_errstr(res));
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taos_free_result(res);
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taos_close(taos);
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exit(EXIT_FAILURE);
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}
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taos_free_result(res);
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}
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// ANCHOR: main
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int main() {
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TAOS *taos = taos_connect("localhost", "root", "taosdata", "", 0);
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if (taos == NULL) {
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printf("failed to connect to server\n");
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exit(EXIT_FAILURE);
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}
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executeSQL(taos, "DROP DATABASE IF EXISTS test");
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executeSQL(taos, "CREATE DATABASE test");
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executeSQL(taos, "USE test");
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char *lines[] = {"meters,location=California.LosAngeles,groupid=2 current=11.8,voltage=221,phase=0.28 1648432611249",
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"meters,location=California.LosAngeles,groupid=2 current=13.4,voltage=223,phase=0.29 1648432611250",
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"meters,location=California.LosAngeles,groupid=3 current=10.8,voltage=223,phase=0.29 1648432611249",
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"meters,location=California.LosAngeles,groupid=3 current=11.3,voltage=221,phase=0.35 1648432611250"};
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TAOS_RES *res = taos_schemaless_insert(taos, lines, 4, TSDB_SML_LINE_PROTOCOL, TSDB_SML_TIMESTAMP_MILLI_SECONDS);
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if (taos_errno(res) != 0) {
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printf("failed to insert schema-less data, reason: %s\n", taos_errstr(res));
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} else {
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int affectedRows = taos_affected_rows(res);
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printf("successfully inserted %d rows\n", affectedRows);
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}
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taos_free_result(res);
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taos_close(taos);
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taos_cleanup();
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}
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// output:
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// successfully inserted 4 rows
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// ANCHOR_END: main
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