1、创建表并写入数据
create table student( id int(11), name varchar(45), primary key (id));
insert into student values(1, "aa");
insert into student values(2, "bb");
2.接口使用
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#include "stdio.h"
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#include <string.h>
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#include <algorithm>
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#include <iostream>
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MYSQL DbObj;//handle
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MYSQL_RES *pRes;//results
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MYSQL_ROW sqlrow;//rows
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int main()
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{
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char tmp[255];
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mysql_init(&DbObj);
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#define MAX_COLUMN_LEN 32
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char column[MAX_COLUMN_LEN][MAX_COLUMN_LEN];
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if (!mysql_real_connect(&DbObj,"10.10.12.87" ,"zhaopf", "zhaopf", "mytest", 0, NULL, 0))
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{
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return 0;
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}
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sprintf(tmp,"select * from student");
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int res=mysql_query(&DbObj,tmp);
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pRes = mysql_use_result(&DbObj);//保存查询到的数据到result
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if(pRes)
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{
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int i=0;
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int j=mysql_num_fields(pRes);
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for(i=0; i<j;i++)//获取列名
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{
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MYSQL_FIELD *fd=mysql_fetch_field(pRes);
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bzero(column[i],sizeof(column[i]));
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strcpy(column[i],fd->name);
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printf("%s\t",column[i]);
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}
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printf("\n");
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while(sqlrow=mysql_fetch_row(pRes))//获取具体的数据
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{
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for(i=0;i<j;i++)
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{
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printf("%s\t",sqlrow[i]);
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}
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printf("\n");
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}
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}
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else
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{
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printf("query Failed.\n");
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}
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mysql_free_result(pRes);
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mysql_close(&DbObj);
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return 0;
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}
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编译
g++ -g -o mysqltest mysql_test.cpp -I/usr/local/mysql/include -L/usr/local/mysql/lib -lmysqlclient
-I指定包含头文件路径
-L指定lib库的路径
-l指定依赖库
3、设置环境变量
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib:/usr/local/mysql/lib
4、执行
[mysql@rhel87 ~]$ ./mysqltest
id name
1 aa
2 bb
OK.
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