#include <stdio.h>
#include <stdlib.h>
#include <winsock.h>
#include <mysql.h>
int xinsert(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("æ’入行数=%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
int xupate(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("更新行数=%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
int xdelete(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("åˆ è¡Œæ•?%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
#include <stdlib.h>
#include <winsock.h>
#include <mysql.h>
int xinsert(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("æ’入行数=%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
int xupate(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("更新行数=%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
int xdelete(MYSQL *mysql,char *strsql)
{
int t;
MYSQL_RES *res;
t=mysql_real_query(mysql,strsql,(unsigned int)strlen(strsql));
if(t){
printf( "Error id=%d Error: %s\n",mysql_errno(mysql),mysql_error(mysql));
return mysql_errno(mysql);
}else{
res=mysql_store_result(mysql);
printf("åˆ è¡Œæ•?%d\n",mysql_affected_rows(mysql));
mysql_free_result(res);
}
return 0;
}
one.c 代ç 如下:
#include <stdlib.h>
#include <winsock.h>
#include <mysql.h>
#include <stdio.h>
#include <mysqltool.h>
int main()
{
MYSQL mysql; //mysql˜qžæŽ¥
MYSQL_RES *res; //˜q™ä¸ª¾l“构代表˜q”回行的一个查询结果集
MYSQL_ROW row; //一个行数æ®çš„类型安å…?type-safe)的表½C?/span>
char *query; //查询è¯å¥
int t,r;
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost", "lottobar", "123456", "lottobar",3306,NULL,0))
{
printf( "Error connecting to database: %s\n",mysql_error(&mysql));
} else
printf("Connected
\n");
query="SET CHARACTER SET GBK"; //讄¡½®¾~–ç
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("¾~–ç 讄¡½®å¤ÞpÓ|\n");
}
query=" select * from demo ";
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("执行查询时出现异� %s",mysql_error(&mysql));
}else
printf("[%s] æž„å¾æˆåŠŸ \n",query);
res=mysql_store_result(&mysql);
while(row=mysql_fetch_row(res))
{
for(t=0;t<mysql_num_fields(res);t++)
{
printf("%s\t",row[t]);
}
printf("\n");
}
mysql_free_result(res);
t=mysql_real_query(&mysql,"SET AUTOCOMMIT =0",(unsigned int)strlen("SET AUTOCOMMIT =0"));
if(t){
printf("å¯ç”¨æ‰‹å·¥äº‹åŠ¡å¤ÞpÓ|\n");
}else{
printf("å¯ç”¨æ‰‹å·¥äº‹åŠ¡æˆåŠŸ\n");
}
t=mysql_real_query(&mysql,"Begin ;",(unsigned int)strlen("Begin ;"));
query="insert into demo(name,age)values('è€è£´','89')";
int inset_result=xinsert(&mysql,query);
query="delete from demo where name='è€è£´'";
int delete_result=xdelete(&mysql,query);
query="update demo set name='裴屋æ? where name='ccd' and inc_id=13";
int update_result=xupate(&mysql,query);
query="insert into demo(inc_id,name,age)values(16,'è€è£´','89')";//执行会出现异常的è¯å¥
int fail_result=xinsert(&mysql,query);
if(inset_result==0 && delete_result==0 && update_result==0 && fail_result==0){
printf("事务æ交\n");
t=mysql_real_query(&mysql,"COMMIT;",(unsigned int)strlen("COMMIT;"));
}else{
printf("事务回滚\n");
t=mysql_real_query(&mysql,"ROLLBACK;",(unsigned int)strlen("ROLLBACK;"));
}
return 0;
}
#include <winsock.h>
#include <mysql.h>
#include <stdio.h>
#include <mysqltool.h>
int main()
{
MYSQL mysql; //mysql˜qžæŽ¥
MYSQL_RES *res; //˜q™ä¸ª¾l“构代表˜q”回行的一个查询结果集
MYSQL_ROW row; //一个行数æ®çš„类型安å…?type-safe)的表½C?/span>
char *query; //查询è¯å¥
int t,r;
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost", "lottobar", "123456", "lottobar",3306,NULL,0))
{
printf( "Error connecting to database: %s\n",mysql_error(&mysql));
} else
printf("Connected
\n");query="SET CHARACTER SET GBK"; //讄¡½®¾~–ç
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("¾~–ç 讄¡½®å¤ÞpÓ|\n");
}
query=" select * from demo ";
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("执行查询时出现异� %s",mysql_error(&mysql));
}else
printf("[%s] æž„å¾æˆåŠŸ \n",query);
res=mysql_store_result(&mysql);
while(row=mysql_fetch_row(res))
{
for(t=0;t<mysql_num_fields(res);t++)
{
printf("%s\t",row[t]);
}
printf("\n");
}
mysql_free_result(res);
t=mysql_real_query(&mysql,"SET AUTOCOMMIT =0",(unsigned int)strlen("SET AUTOCOMMIT =0"));
if(t){
printf("å¯ç”¨æ‰‹å·¥äº‹åŠ¡å¤ÞpÓ|\n");
}else{
printf("å¯ç”¨æ‰‹å·¥äº‹åŠ¡æˆåŠŸ\n");
}
t=mysql_real_query(&mysql,"Begin ;",(unsigned int)strlen("Begin ;"));
query="insert into demo(name,age)values('è€è£´','89')";
int inset_result=xinsert(&mysql,query);
query="delete from demo where name='è€è£´'";
int delete_result=xdelete(&mysql,query);
query="update demo set name='裴屋æ? where name='ccd' and inc_id=13";
int update_result=xupate(&mysql,query);
query="insert into demo(inc_id,name,age)values(16,'è€è£´','89')";//执行会出现异常的è¯å¥
int fail_result=xinsert(&mysql,query);
if(inset_result==0 && delete_result==0 && update_result==0 && fail_result==0){
printf("事务æ交\n");
t=mysql_real_query(&mysql,"COMMIT;",(unsigned int)strlen("COMMIT;"));
}else{
printf("事务回滚\n");
t=mysql_real_query(&mysql,"ROLLBACK;",(unsigned int)strlen("ROLLBACK;"));
}
return 0;
}
]]>
一�span style="font-family: 宋体">哆嗦一�/span>
从打开始妾~–程以æ¥åQŒæŽ¥è§¦çš„½W¬ä¸€é—¨çœŸæ£çš„¾~–程è¯è¨€æ˜?/span>CåQ?/span>foxbaseä¸ç®—åQ‰ï¼Œæƒ›_½“òq´ä¿ºè‡ªå¦å®Œæµ©å¼ºå”那本ã€?/span>Cè¯è¨€½E‹åºè®¾è®¡ã€‹æ—¶åQŒè€å¸ˆæ‰å¼€å§‹æ•™pascal。自毕业以æ¥ä¸€ç›´æ²¡æœ‰æœºä¼šå†™˜q‡æœ‰åº”用价值的C½E‹åºåQŒä»ŽDelphiåšåˆ°J2EE。打½Ž—从现在开始利用业余时间å¦ä¹?/span>Pro*CåQ?/span>Mysql CåQŒä¹Ÿä¸çŸ¥ä¸ºå•¥å¯?/span>C念念ä¸å¿˜åQŒå´æ²¡æœºç”?/span>Cæ¥å†™½E‹åºã€?/span>
二ã€?span style="font-family: 宋体">å¼€å‘环å¢?/span>
1�nbsp;windowsXP
2�nbsp;mysql 5.0.22
3�nbsp;Dev-C++ 4.9.9.2
4�nbsp;Mysql C for Dev-Cpp (MySQL.DevPak)
a) 用过Dev-C++çš„äh都应该知é?/span>devpakå§æˆ‘ž®×ƒ¸è¯¦è¯´åQŒå¦‚æžœä½ ç”¨çš„æ˜?/span>C++åQŒè¯·ä¸‹è²(mysqlpp-2.3.2-gcc3.4.2-1due.DevPak)
b) MySQL.DevPak 下è²åœ°å€åQ?/span> http://downloads.sourceforge.net/dev-cpp/MySQL.DevPak
三ã€?span style="font-family: 宋体">安装åŠé…¾|?/span>
1ã€åŒå‡?/span>MySQL.DevPakæ–‡äšgåQŒæŒ‰æ¥éª¤æŠŠè¿™å¼€å‘包安装完æˆã€‚ç›´åˆ?/span>package Mangaer 出现“MySQL”å›_¯ã€?/span>
2ã€å•å‡?#8220;工具”->“¾~–译选项”->“¾~–译å™?#8221;->“在连接器命ä×oè¡Œä¸åŠ 下以下命ä×o”åQˆé€‰æ‹©åQ‰ï¼Œåœ¨ä¸‹é¢çš„文本框ä¸æ·ÕdŠ -lmysql ã€?/span>
3ã€åœ¨Dev-C++ä¸æ·»åŠ?/span>mysqlçš?/span>libå’?/span>include æ–‡äšgåQŒå…·ä½“æ–¹æ³?/span>:
“工具”->“¾~–译选项”->“¾~–译å™?#8221;->“目录” ä¸æ·»åŠ?/span>
å››ã€?span style="font-family: 宋体">例程代ç
#include <stdlib.h>
#include <winsock.h>
#include <mysql.h>
#include <stdio.h>
/*
Name: ‹¹‹è¯•ä¾‹å
Copyright: http://www.aygfsteel.com/pdw2009
Author: 裴å¯dä¸?/span>
Date: 09-03-08 18:14
Description:
*/
int main()
{
MYSQL mysql; //mysql˜qžæŽ¥
MYSQL_RES *res; //˜q™ä¸ª¾l“构代表˜q”回行的一个查询结果集
MYSQL_ROW row; //一个行数æ®çš„类型安å…?/span>(type-safe)的表½C?/span>
char *query; //查询è¯å¥
int t,r;
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost", "lottobar", "123456", "lottobar",3306,NULL,0))
{
printf( "Error connecting to database: %s"n",mysql_error(&mysql));
} else
printf("Connected..."n");
query="SET CHARACTER SET GBK"; //讄¡½®¾~–ç
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("¾~–ç 讄¡½®å¤ÞpÓ|"n");
}
query=" select * from demo ";
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
if(t)
{
printf("执行查询时出现异�/span>: %s",mysql_error(&mysql));
}else
printf("[%s] æž„å¾æˆåŠŸ "n",query);
res=mysql_store_result(&mysql);
while(row=mysql_fetch_row(res))
{
for(t=0;t<mysql_num_fields(res);t++)
{
printf("%s"t",row[t]);
}
printf(""n");
}
mysql_free_result(res);
sleep(1);
return 0;
}
五ã€?span style="font-family: 宋体">注æ„事项
Windows C½E‹åºè®‘Öªè¦æ¶‰åŠç½‘¾lœçš„éƒ½åº”è¯¥åŠ ä¸Šè¿™ä¸¤ä¸ªæ–‡äšgåQŒå¦åˆ™è‚¯å®šå‡ºé”?/span>
#include <stdlib.h>
#include <winsock.h>
Mysql Cä¹Þq 的解å†Ïx–¹å¼?/span>
query="SET CHARACTER SET GBK"; //讄¡½®¾~–ç
t=mysql_real_query(&mysql,query,(unsigned int)strlen(query));
å¦‚æžœä½ æœ‰é—®é¢˜å¯ä»¥åˆ?/span>www.aygfsteel.com/pdw2009åŽÖMº¤‹¹?/span>
该文属作者原åˆ?转è²è¯äh³¨æ˜Žå‡º: http://www.aygfsteel.com/pdw2009
]]>
Bã€æ²¡æœ‰IDENTIFIED BYåå¥
EXEC SQL CONNECT :usr_pwd
usr_pwdç”?分隔用户åå’Œå£ä×o
2ã€æ˜¾å¼ç™»é™?br /> EXEC SQL BEGIN DECLARE SECTION
VARCHARE username[20];
VARCHARE password[20];
VARCHARE dbname[20];
EXEC SQL END DECLARE SECTION
/*附å€û|¼Œç•?/
EXEC SQL DECLARE dbname DATABASE;
/*登陆˜qœç¨‹éžé»˜è®¤æ•°æ®åº“*/
EXEC SQL CONNECTION :username IDENTIFIELD BY :password
AT db_like_name USING :dbname;
/*如果db_like_name 是宿ä¸Õd˜é‡å°±ä¸ç”¨å®šä¹‰*/
éƒé—·åœ¨hpux下写好多例程åQŒå¯ä¸å°å¿ƒä¸€ä¸ªrmž®±å¹²æŽ‰äº†, 没法å†æ›´æ–?br />
]]>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
EXEC SQL include sqlca;
EXEC ORACLE OPTION (RELEASE_CURSOR = YES);
EXEC SQL BEGIN DECLARE SECTION;
VARCHAR username[20];
VARCHAR password[20];
EXEC SQL END DECLARE SECTION;
void sql_error()
{
EXEC SQL WHENEVER SQLERROR CONTINUE;
printf("\n Oracle error detected:\n");
printf("\n%.70s\n",sqlca.sqlerrm.sqlerrmc);
EXEC SQL ROLLBACK RELEASE;
exit(1);
}
main()
{
strcpy(username.arr,"gdnum_true");
strcpy(password.arr,"gdnumtrue_10");
username.len=strlen(username.arr);
password.len=strlen(password.arr);
EXEC SQL CONNECT :username IDENTIFIED BY :password;
printf("sqlca.sqlcode=%d;\n",sqlca.sqlcode);
printf("login user=%s",username.arr);
exit(0);
}
#include <string.h>
#include <stdlib.h>
EXEC SQL include sqlca;
EXEC ORACLE OPTION (RELEASE_CURSOR = YES);
EXEC SQL BEGIN DECLARE SECTION;
VARCHAR username[20];
VARCHAR password[20];
EXEC SQL END DECLARE SECTION;
void sql_error()
{
EXEC SQL WHENEVER SQLERROR CONTINUE;
printf("\n Oracle error detected:\n");
printf("\n%.70s\n",sqlca.sqlerrm.sqlerrmc);
EXEC SQL ROLLBACK RELEASE;
exit(1);
}
main()
{
strcpy(username.arr,"gdnum_true");
strcpy(password.arr,"gdnumtrue_10");
username.len=strlen(username.arr);
password.len=strlen(password.arr);
EXEC SQL CONNECT :username IDENTIFIED BY :password;
printf("sqlca.sqlcode=%d;\n",sqlca.sqlcode);
printf("login user=%s",username.arr);
exit(0);
}
proc pro1.pc
cc -o pro1 pro1.c -L $ORACLE_HOME/lib32 -lclntsh
ä¸ä½œæ–‡å—说明åQŒåªä½œä¾‹½E‹è®°è½?
]]>