如何搭建linux下c++开发环境

方法/步骤

1

1、下载

Linux 下的 Oracle Instant Client 有rpm包和zip包两种，下载任意一种即可，这里以下载的 zip

包为例，下载rpm包的安装见 Oracle Instant Client rpm包安装

instantclient-basic-linux.x64-11.2.0.3.0.zip

instantclient-sqlplus-linux.x64-11.2.0.3.0.zip

instantclient-sdk-linux.x64-11.2.0.3.0.zip

instantclient-precomp-linux.x64-11.2.0.3.0.zip

2、解压安装 unzip

instantclient-basic-linux.x64-11.2.0.3.0.zip unzip

instantclient-sqlplus-linux.x64-11.2.0.3.0.zip unzip

instantclient-sdk-linux.x64-11.2.0.3.0.zip unzip

instantclient-precomp-linux.x64-11.2.0.3.0.zip

文件被解压到目录instantclient_11_2下

3、创建数据库连接文件在instantclient_11_2目录下创建

network/admin目录,使用命令mkdir -p

network/admin,并在admin目录下创建tnsnames.ora文件,文件内容类似如下:XXX = (DESCRIPTION

= (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST =

192.168.0.10)(PORT = 1521)) ) (CONNECT_DATA =

(SERVICE_NAME = orcl) ) )

4、配置环境变量 这里配置 root 用户环境变量：

~/.bash_profile export ORACLE_HOME=/oracle/instantclient_11_2

export PROC=$ORACLE_HOME/sdk export PATH=$PATH:$ORACLE_HOME:$PROC

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib:$ORACLE_HOME export

LIBRARY_PATH=$LIBRARY_PATH:/usr/lib:$ORACLE_HOME

注意要配置LD_LIBRARY_PATH变量,sqlplus等程序运行时需要加载相应库,若不配置,则运行时会出现错误配置完毕后 source

~/.bash_profile

5、sqlplus测试[centos@localhost soft]$ sqlplus

/nologSQL*Plus: Release 11.2.0.1.0 Production on 星期二 1月 10 11:14:31

2012Copyright (c) 1982, 2009, Oracle. All rights reserved.SQL> conn

scott/tiger@XXX

已连接SQL>

6、proc测试

测试代码:

#include

exec sql include sqlca;

int main(void) {

exec sql begin declare section;

char userpwd[30] = "scott/tiger@XXX";

char curdate[20] = {0};

exec sql end declare section;

exec sql connect:userpwd;

if(sqlca.sqlcode == 0) {

fprintf(stderr, "connect to database success!\n");

}

else {

fprintf(stderr, "connect to database failed! error:%s\n", sqlca.sqlerrm.sqlerrmc);

return -1;

}

exec sql select to_char(sysdate, 'yyyy-mm-dd hh24:mi:ss') into:curdate from dual;

fprintf(stderr, "%s", curdate);

return 0;

}

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