Erlang在Redhat 5.3下使用unixODBC连接Oracle数据库的配置
个人在安装配置时遇到一些麻烦,特此记录如下: 环境 数据库服务器操作系统:Windows 2003 数据库:Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 erlang运行的服务器操作系统:Redhat 5.3 erlang:Erlang R14B03 (erts-5.8.4) 注意 ==========
个人在安装配置时遇到一些麻烦,特此记录如下:
-
环境
数据库服务器操作系统:Windows 2003
数据库:Oracle Database 10g Enterprise Edition Release 10.2.0.1.0erlang运行的服务器操作系统:Redhat 5.3
erlang:Erlang R14B03 (erts-5.8.4)
- 注意
redhat 5.3中默认安装的unixODBC是2.2.11版本,这个版本与oracle的odbc驱动不兼容。所以需要将先将其卸载,然后安装unixODBC 2.3.0
卸载unixODBC的rpm包:
rpm -e mysql-connector-odbc-3.51.12-2.2.i386
rpm -e unixODBC-devel-2.2.11-7.1
rpm -e unixODBC-2.2.11-7.1
下载安装unixODBC 2.3.0
从www.unixodbc.org处下载,或者
http://olex.openlogic.com/package_versions/download/10003?package_version_id=5966&path=openlogic%2Funixodbc%2F2.3.0%2Fopenlogic-unixodbc-2.3.0-all-src-2.zip
在configure时加两个参数:--sysconfdir=/etc --prefix=/usr
然后make install就可以啦
安装完成后执行odbcinst -j可以看到配置文件等的位置
===============================================================================
1. 从Oracle网站下载客户端安装包
http://download.oracle.com/otn/linux/instantclient/11203/oracle-instantclient11.2-basic-11.2.0.3.0-1.i386.rpm
http://download.oracle.com/otn/linux/instantclient/11203/oracle-instantclient11.2-odbc-11.2.0.3.0-1.i386.rpm
最好再安装一下sqlplus
http://download.oracle.com/otn/linux/instantclient/11203/oracle-instantclient11.2-sqlplus-11.2.0.3.0-1.i386.rpm
2. 配置lib目录
cd /usr/lib/oracle/11.2/client/lib
pwd >>/etc/ld.so.conf
ldconfig
3. 修改/etc/odbcinst.ini
增加如下:
# Driver form oracle
[Oracle]
Desription = ODBC for Oracle
Driver = /usr/lib/oracle/11.2/client/lib/libsqora.so.11.1
Setup = /usr/lib/liboraodbcS.so
FileUsage = 1
这个加到odbcinst.ini文件的最后。测试时用,正常使用时应该去掉
[ODBC]
Trace = 1
TraceFile =/tmp/odbc.log
Debug = 1
Pooling = No
4. 修改/etc/odbc.ini
增加如下
[ORCL_146] #本地数据源名
Description = ODBC for Oracle
Driver = Oracle
Server = 192.168.1.146
Port = 1521
ServerName = ORCL_146 #tnsnames.ora中的服务名
UserID = mycomm
Password = mycomm123
5. 增加/usr/lib/oracle/11.2/network/admin/tnsnames.ora
ORCL_146 =(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.146)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
其中ORCL_146要与odbc.ini的ServerName相同,
SERVICE_NAME为oracle的服务名
HOST为数据库所在主机IP,PORT为数据库所在主机port。
6. 在/etc/profile中增加:
export TNS_ADMIN=/usr/lib/oracle/11.2/network/admin/
然后,为了让TNS_ADMIN环境变化现在就生效,执行
. /etc/profile
7. 用isql测试一下
isql ORCL_146 -v
出错:
[01000][unixODBC][Driver Manager]Can't open lib '/usr/lib/oracle/11.2/client/lib/libsqora.so.11.1' : libclntsh.so.11.1: cannot open shared object file: No such file or directory
[ISQL]ERROR: Could not SQLConnect
发现是没有libclntsh.so.11.1这个库文件,这个库文件在/usr/lib/oracle/11.2/client/lib/下,之所以没有找到是由于在第2步时执行ldconfig的终端不是现在执行isql的终端。
重新执行一下ldconfig
再执行isql ORCL_146 -v
出错:
isql: symbol lookup error: /usr/lib/oracle/11.2/client/lib/libsqora.so.11.1: undefined symbol: SQLGetPrivateProfileStringW
这个问题就是unixODBC的版本问题啦,如果前面安装了unixODBC 2.3.0的话不会出现这个错误
如果sqlplus可以连接,但isql不可以,需要确认是否export了TNS_ADMIN这一环境变量
8. erlang odbc 连接oralce时出错如下:
------------------------------------------
Erlang R14B03 (erts-5.8.4) [source] [smp:2:2] [rq:2] [async-threads:0] [hipe] [kernel-poll:false]
Eshell V5.8.4 (abort with ^G)
1> odbc:start().
ok
2> odbc:connect("DSN=ORCL_146;UID=scott;PWD=tiger", []).
=ERROR REPORT==== 21-Oct-2011::19:23:49 ===
ODBC: received unexpected info: {tcp_closed,#Port}
{error,connection_closed}
3>
=ERROR REPORT==== 21-Oct-2011::19:23:49 ===
** Generic server terminating
** Last message in was {#Port,{exit_status,23}}
** When Server state == {state,#Port,
{,#Ref},
,undefined,on,undefined,undefined,on,
connecting,undefined,0,
[#Port,#Port],
#Port,#Port}
** Reason for termination ==
** {port_exit,collecting_of_driver_information_faild}
----------------------------------------------
根据这里的方法
http://www1.erlang.org/pipermail/erlang-questions/2005-August/016816.html
这样连接就可以啦
3> odbc:connect("DSN=ORCL_146;UID=scott;PWD=tiger", [{scrollable_cursors, off}]).
{ok,}
4>
其实这里可以不用UID和PWD,只要一个DSN就可以啦,形如:
odbc:connect("DSN=ORCL_146", [{scrollable_cursors, off}]).

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Magnet link is a link method for downloading resources, which is more convenient and efficient than traditional download methods. Magnet links allow you to download resources in a peer-to-peer manner without relying on an intermediary server. This article will introduce how to use magnet links and what to pay attention to. 1. What is a magnet link? A magnet link is a download method based on the P2P (Peer-to-Peer) protocol. Through magnet links, users can directly connect to the publisher of the resource to complete resource sharing and downloading. Compared with traditional downloading methods, magnetic

How to use mdf files and mds files With the continuous advancement of computer technology, we can store and share data in a variety of ways. In the field of digital media, we often encounter some special file formats. In this article, we will discuss a common file format - mdf and mds files, and introduce how to use them. First, we need to understand the meaning of mdf files and mds files. mdf is the extension of the CD/DVD image file, and the mds file is the metadata file of the mdf file.

CrystalDiskMark is a small HDD benchmark tool for hard drives that quickly measures sequential and random read/write speeds. Next, let the editor introduce CrystalDiskMark to you and how to use crystaldiskmark~ 1. Introduction to CrystalDiskMark CrystalDiskMark is a widely used disk performance testing tool used to evaluate the read and write speed and performance of mechanical hard drives and solid-state drives (SSD). Random I/O performance. It is a free Windows application and provides a user-friendly interface and various test modes to evaluate different aspects of hard drive performance and is widely used in hardware reviews

foobar2000 is a software that can listen to music resources at any time. It brings you all kinds of music with lossless sound quality. The enhanced version of the music player allows you to get a more comprehensive and comfortable music experience. Its design concept is to play the advanced audio on the computer The device is transplanted to mobile phones to provide a more convenient and efficient music playback experience. The interface design is simple, clear and easy to use. It adopts a minimalist design style without too many decorations and cumbersome operations to get started quickly. It also supports a variety of skins and Theme, personalize settings according to your own preferences, and create an exclusive music player that supports the playback of multiple audio formats. It also supports the audio gain function to adjust the volume according to your own hearing conditions to avoid hearing damage caused by excessive volume. Next, let me help you

NetEase Mailbox, as an email address widely used by Chinese netizens, has always won the trust of users with its stable and efficient services. NetEase Mailbox Master is an email software specially created for mobile phone users. It greatly simplifies the process of sending and receiving emails and makes our email processing more convenient. So how to use NetEase Mailbox Master, and what specific functions it has. Below, the editor of this site will give you a detailed introduction, hoping to help you! First, you can search and download the NetEase Mailbox Master app in the mobile app store. Search for "NetEase Mailbox Master" in App Store or Baidu Mobile Assistant, and then follow the prompts to install it. After the download and installation is completed, we open the NetEase email account and log in. The login interface is as shown below

After long pressing the play button of the speaker, connect to wifi in the software and you can use it. Tutorial Applicable Model: Xiaomi 12 System: EMUI11.0 Version: Xiaoai Classmate 2.4.21 Analysis 1 First find the play button of the speaker, and press and hold to enter the network distribution mode. 2 Log in to your Xiaomi account in the Xiaoai Speaker software on your phone and click to add a new Xiaoai Speaker. 3. After entering the name and password of the wifi, you can call Xiao Ai to use it. Supplement: What functions does Xiaoai Speaker have? 1 Xiaoai Speaker has system functions, social functions, entertainment functions, knowledge functions, life functions, smart home, and training plans. Summary/Notes: The Xiao Ai App must be installed on your mobile phone in advance for easy connection and use.

Cloud storage has become an indispensable part of our daily life and work nowadays. As one of the leading cloud storage services in China, Baidu Netdisk has won the favor of a large number of users with its powerful storage functions, efficient transmission speed and convenient operation experience. And whether you want to back up important files, share information, watch videos online, or listen to music, Baidu Cloud Disk can meet your needs. However, many users may not understand the specific use method of Baidu Netdisk app, so this tutorial will introduce in detail how to use Baidu Netdisk app. Users who are still confused can follow this article to learn more. ! How to use Baidu Cloud Network Disk: 1. Installation First, when downloading and installing Baidu Cloud software, please select the custom installation option.

Get started easily: How to use pip mirror source With the popularity of Python around the world, pip has become a standard tool for Python package management. However, a common problem that many developers face when using pip to install packages is slowness. This is because by default, pip downloads packages from Python official sources or other external sources, and these sources may be located on overseas servers, resulting in slow download speeds. In order to improve download speed, we can use pip mirror source. What is a pip mirror source? To put it simply, just
