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add demo.c

This commit is contained in:
yihaoDeng 2020-11-13 06:50:37 +00:00
parent 01d1782d5b
commit ee4adca353
1 changed files with 15 additions and 30 deletions
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45
tests/examples/c/demo.c
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@ -50,10 +50,10 @@ static void queryDB(TAOS *taos, char *command) {
taos_free_result(pSql);
}
void Test(char *qstr, const char *input, int i);
int main(int argc, char *argv[]) {
TAOS * taos;
char qstr[1024];
TAOS_RES *result;
// connect to server
if (argc < 2) {
@ -63,41 +63,26 @@ int main(int argc, char *argv[]) {
// init TAOS
taos_init();
taos = taos_connect(argv[1], "root", "taosdata", NULL, 0);
for (int i = 0; i < 4000000; i++) {
Test(qstr, argv[1], i);
}
taos_cleanup();
}
void Test(char *qstr, const char *input, int index) {
TAOS *taos = taos_connect(input, "root", "taosdata", NULL, 0);
printf("==================test at %d\n================================", index);
queryDB(taos, "drop database if exists demo");
queryDB(taos, "create database demo");
TAOS_RES *result;
if (taos == NULL) {
printf("failed to connect to server, reason:%s\n", "null taos"/*taos_errstr(taos)*/);
exit(1);
}
printf("success to connect to server\n");
//taos_query(taos, "drop database demo");
queryDB(taos, "drop database if exists demo");
//result = taos_query(taos, "create database demo");
//if (result == NULL) {
// printf("failed to create database, reason:%s\n", "null result"/*taos_errstr(taos)*/);
// exit(1);
//}
queryDB(taos, "create database demo");
printf("success to create database\n");
//taos_query(taos, "use demo");
queryDB(taos, "use demo");
// create table
//if (taos_query(taos, "create table m1 (ts timestamp, ti tinyint, si smallint, i int, bi bigint, f float, d double, b binary(10))") == 0) {
// printf("failed to create table, reason:%s\n", taos_errstr(result));
// exit(1);
//}
queryDB(taos, "create table m1 (ts timestamp, ti tinyint, si smallint, i int, bi bigint, f float, d double, b binary(10))");
printf("success to create table\n");
// sleep for one second to make sure table is created on data node
// taosMsleep(1000);
// insert 10 records
int i = 0;
for (i = 0; i < 10; ++i) {
sprintf(qstr, "insert into m1 values (%" PRId64 ", %d, %d, %d, %d, %f, %lf, '%s')", 1546300800000 + i * 1000, i, i, i, i*10000000, i*1.0, i*2.0, "hello");
@ -117,7 +102,6 @@ int main(int argc, char *argv[]) {
}
taos_free_result(result);
//sleep(1);
}
printf("success to insert rows, total %d rows\n", i);
@ -147,5 +131,6 @@ int main(int argc, char *argv[]) {
taos_free_result(result);
printf("====demo end====\n\n");
return getchar();
taos_close(taos);
}