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This commit is contained in:
sheyanjie-qq 2024-08-12 20:56:20 +08:00
parent 29df00a89d
commit c6e7d69bb4
8 changed files with 65 additions and 63 deletions
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20
docs/examples/c/create_db_demo.c
View File

@ -22,7 +22,6 @@
#include <string.h> #include <string.h>
#include "taos.h" #include "taos.h"
static int DemoCreateDB() { static int DemoCreateDB() {
// ANCHOR: create_db_and_table // ANCHOR: create_db_and_table
const char *host = "localhost"; const char *host = "localhost";
@ -34,7 +33,8 @@ int code = 0;
// connect // connect
TAOS *taos = taos_connect(host, user, password, NULL, port); TAOS *taos = taos_connect(host, user, password, NULL, port);
if (taos == NULL) { if (taos == NULL) {
printf("Failed to connect to %s:%hu, ErrCode: 0x%x, ErrMessage: %s.\n", host, port, taos_errno(NULL), taos_errstr(NULL)); printf("Failed to connect to %s:%hu, ErrCode: 0x%x, ErrMessage: %s.\n", host, port, taos_errno(NULL),
taos_errstr(NULL));
taos_cleanup(); taos_cleanup();
return -1; return -1;
} }
@ -43,7 +43,8 @@ if (taos == NULL) {
TAOS_RES *result = taos_query(taos, "CREATE DATABASE IF NOT EXISTS power"); TAOS_RES *result = taos_query(taos, "CREATE DATABASE IF NOT EXISTS power");
code = taos_errno(result); code = taos_errno(result);
if (code != 0) { if (code != 0) {
printf("Failed to create database power, Server: %s:%hu, ErrCode: 0x%x, ErrMessage: %s.\n", host, port, code, taos_errstr(result)); printf("Failed to create database power, Server: %s:%hu, ErrCode: 0x%x, ErrMessage: %s.\n", host, port, code,
taos_errstr(result));
taos_close(taos); taos_close(taos);
taos_cleanup(); taos_cleanup();
return -1; return -1;
@ -52,17 +53,20 @@ taos_free_result(result);
printf("Create database power successfully.\n"); printf("Create database power successfully.\n");
// create table // create table
const char* sql = "CREATE STABLE IF NOT EXISTS power.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (groupId INT, location BINARY(24))"; const char *sql =
"CREATE STABLE IF NOT EXISTS power.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (groupId "
"INT, location BINARY(24))";
result = taos_query(taos, sql); result = taos_query(taos, sql);
code = taos_errno(result); code = taos_errno(result);
if (code != 0) { if (code != 0) {
printf("Failed to create stable power.meters, Server: %s:%hu, ErrCode: 0x%x, ErrMessage: %s\n.", host, port, code, taos_errstr(result)); printf("Failed to create stable power.meters, Server: %s:%hu, ErrCode: 0x%x, ErrMessage: %s\n.", host, port, code,
taos_errstr(result));
taos_close(taos); taos_close(taos);
taos_cleanup(); taos_cleanup();
return -1; return -1;
} }
taos_free_result(result); taos_free_result(result);
printf("Create stable meters successfully.\n"); printf("Create stable power.meters successfully.\n");
// close & clean // close & clean
taos_close(taos); taos_close(taos);
@ -71,6 +75,4 @@ return 0;
// ANCHOR_END: create_db_and_table // ANCHOR_END: create_db_and_table
} }
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) { return DemoCreateDB(); }
return DemoCreateDB();
}

2
docs/examples/node/websocketexample/tmq_example.js
View File

@ -66,7 +66,7 @@ async function subscribe(consumer) {
console.log("Commit offset manually successfully."); console.log("Commit offset manually successfully.");
} }
} catch (err) { } catch (err) {
console.error("Failed to poll data; err.code, ErrCode:" + err.code + "; ErrMessage: " + err.message); console.error("Failed to poll data; ErrCode:" + err.code + "; ErrMessage: " + err.message);
throw err; throw err;
} }
// ANCHOR_END: commit // ANCHOR_END: commit

2
docs/examples/node/websocketexample/tmq_seek_example.js
View File

@ -59,7 +59,7 @@ async function subscribe(consumer) {
} }
} }
} catch (err) { } catch (err) {
console.error("Failed to poll data; err.code, ErrCode:" + err.code + "; ErrMessage: " + err.message); console.error("Failed to poll data; ErrCode:" + err.code + "; ErrMessage: " + err.message);
throw err; throw err;
} }

2
docs/examples/python/reqid_native.py
View File

@ -1,7 +1,7 @@
import taos import taos
conn = None conn = None
reqId = 1 reqId = 3
host="localhost" host="localhost"
port=6030 port=6030
try: try:

2
docs/examples/python/reqid_rest.py
View File

@ -2,7 +2,7 @@ import taosrest
client = None client = None
url="http://localhost:6041" url="http://localhost:6041"
reqId = 1 reqId = 3
try: try:
client = taosrest.RestClient(url=url, client = taosrest.RestClient(url=url,
user="root", user="root",

4
docs/examples/python/reqid_ws.py
View File

@ -1,7 +1,7 @@
import taosws import taosws
conn = None conn = None
reqId = 1 reqId = 3
host="localhost" host="localhost"
port=6041 port=6041
try: try:
@ -12,7 +12,7 @@ try:
port=port, port=port,
) )
result = conn.query_with_req_id("SELECT ts, current, location FROM power.meters limit 100", req_id=1) result = conn.query_with_req_id("SELECT ts, current, location FROM power.meters limit 100", req_id=3)
# Get data from result as list of tuple # Get data from result as list of tuple
for row in result: for row in result:
print(f"ts: {row[0]}, current: {row[1]}, location: {row[2]}") print(f"ts: {row[0]}, current: {row[1]}, location: {row[2]}")