/* Simple C program that connects to MySQL Database server */
#include <mysql.h>
#include <stdio.h>
main() { char *begin="\n+--------------BEGIN---------------+\n\n"; printf(begin);MYSQL *conn; MYSQL_RES *res; MYSQL_ROW row; char *server = "localhost"; char *user = "your mysql user";char *password = "your password";char *database = "your database"; conn = mysql_init(NULL); /* Connect to database */ /* * CLIENT_MULTI_RESULTS * 通知服务器，客户端能够处理来自多语句执行或存储程序的多个结果集。 * 如果设置了CLIENT_MULTI_STATEMENTS，将自动设置它。 */ if (!mysql_real_connect(conn, server, user, password, database, 0, NULL, CLIENT_MULTI_RESULTS)) { fprintf(stderr, "%s\n", mysql_error(conn)); exit(1); }char *tell="SQL Table Query...\n"; printf(tell); // SQL 普通表查询 char *sql="select password from Users whereUserName='client1@192.168.1.122'"; if (mysql_query(conn, sql)) { fprintf(stderr, "%s\n", mysql_error(conn)); exit(1); }res = mysql_use_result(conn); printf("SqlCommand:%s",sql); printf("\n"); while ((row = mysql_fetch_row(res)) != NULL) { printf("PassWord:%s \n\n", row[0]); } mysql_free_result(res); char *tell2="SQL Store Query More...\n"; printf(tell2); // SQL 存储过程查询 char *sql1="call P_GetCurrentCostPriceByUserName('client1@192.168.1.122')"; if (mysql_query(conn, sql1)) { fprintf(stderr, "%s\n\n", mysql_error(conn)); exit(1); } 　　/* * 存储过程默认返回的是多个结果集， * 所以要用mysql_next_result取出并检查 * 下一个的结果集。否则在存储过程下的 * 其它查询语句都会出现 “Commands out of sync; * you can't run this command now”错误！ */ do { if ((res = mysql_use_result(conn))) { printf("SqlCommand:%s",sql1); printf("\n"); while ((row = mysql_fetch_row(res)) != NULL) { printf("UserName:%s \n", row[0]); printf("Balance:%s \n",row[1]); printf("Price:%s \n\n",row[2]); } } }while (!mysql_next_result(conn)); mysql_free_result(res); char *tell3="SQL View Query More...\n"; printf(tell3); // SQL 视图查询 char *sql2="select CameraID,URL,RtspName,PW,PTZ,PTZServer from V_UserEquipment whereLoginName='client1@192.168.1.122'"; if (mysql_query(conn, sql2)) { fprintf(stderr, "%s\n", mysql_error(conn)); exit(1); } res = mysql_use_result(conn); printf("SqlCommand:%s",sql2); printf("\n"); while ((row = mysql_fetch_row(res)) != NULL) { printf("CameraID:%s \n", row[0]); printf("URL:%s\n",row[1]); printf("RtspName:%s \n",row[2]); printf("PW:%s \n", row[3]); printf("PTZ:%s \n",row[4]); printf("PTZServer:%s \n\n",row[5]); } mysql_free_result(res); mysql_close(conn); char *end="+--------------END----------------+\n"; printf(end);
} 

gcc -o sqla $(mysql_config --cflags) sqla.c $(mysql_config --libs)

+--------------BEGIN---------------+
SQL Table Query...
SqlCommand:select password from Users where UserName='client1@192.168.1.122'
PassWord:client1
SQL Store Query More...
SqlCommand:call P_GetCurrentCostPriceByUserName('client1@192.168.1.122')
UserName:client1@192.168.1.122
Balance:30000
Price:0.05
SQL View Query More...
SqlCommand:select CameraID,URL,RtspName,PW,PTZ,PTZServer from V_UserEquipment where LoginName='client1@192.168.1.122'
CameraID:051010049@192.168.1.122_0
[url=rtsp://192.168.1.93/1.mp4]URL:rtsp://192.168.1.93/1.mp4[/url]
RtspName:admin
PW:admin
PTZ:1
PTZServer:ptzserver1@192.168.1.122
+--------------END----------------+