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HomeDatabaseMysql Tutorial不安装Oracle客户端使用PLSQL连接Oracle数据库的方法

http://wenku.baidu.com/link?url=0i6xJL1ZV7uAbyS4gc_RMqjma1MyytEsSESRqRZVe08c9tbsE7wqmrdGc-I0Goc9K4mAZ89RoFKN7Ey0VbvzJHtOQPVi3E02rSJFe2OWTpS 1.下载Oracle Client Package . 从 http://www.oracle.com/technology/software/tech/oci/instantclient/h

http://wenku.baidu.com/link?url=0i6xJL1ZV7uAbyS4gc_RMqjma1MyytEsSESRqRZVe08c9tbsE7wqmrdGc-I0Goc9K4mAZ89RoFKN7Ey0VbvzJHtOQPVi3E02rSJFe2OWTpS

1.下载Oracle Client Package .

从 http://www.oracle.com/technology/software/tech/oci/instantclient/htdocs/winsoft.html下载

Instant Client Package – Basic 包 ( 标注 :All files required to run OCI, OCCI, and JDBC-OCIapplications) 这里下载的是 Version 11.1.0.7

2.本地保存Oracle Client Package:

创建文件夹 , 比如 oracle_client, 将下载的文件加压缩到此文件夹里 .( 笔者目录 :D:\oracle_client\instantclient_10_2)

3. 在当前目录下 ,新建立两个文件,sqlnet.ora和tnsnames.ora然后再 手动配置 sqlnet.ora 和 tnsnames.ora

比如这里是 :

sqlnet.ora 文件内容 :

SQLNET.AUTHENTICATION_SERVICES=(NTS)

NAMES.DIRECTORY_PATH= (TNSNAMES,EZCONNECT)

 

tnsnames.ora 文件内容 ( 斜体表示需要替换的内容 ):

orcl =

(DESCRIPTION =

    (ADDRESS_LIST=

     (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.103 )(PORT = 1521))

    )

    (CONNECT_DATA=

     (SERVICE_NAME = orcl )

    )

)

 

4. 配置环境变量

变量名 : TNS_ADMIN

变量值 : D:\oracle_client\instantclient_10_2

否则出现 :ORA-12154: TNS:could notresolve the connect identifier specified错误

 

 

如果之前 安装了 Oracle 又卸载 , 会遗留 NLS_LANG=NA 的键值 . 输入 RegEdit 打开注册表HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE. 在右面找到 NLS_LANG=NA 并删除掉

否则会报 ORA-12705: Cannot access NLS datafiles or invalid 错误 .

 

5. 安装 pl/sql软件(过程略)

6.配置pl/sql的Oracle连接参数:

选择 pl/sql 的工具 / 首选项 (too/ preference/ ) 里的连接 , 在右面设置 Oracle 主目录名 ( 即安装目录 ) 和 OCI 库 .

Oracle 主目录名 :D:\oracle_client\instantclient_10_2

OCI 库 :D:\oracle_client\instantclient_10_2\oci.dll

7. 登陆 pl/sql 测试成功


我遇到的问题是:

应该在64位系统上下载32位进行安装。

http://blog.csdn.net/hemingwang0902/article/details/7027543

今天在 x64 的 Win7 上重新安装了 Oralce 后,通过 PL/SQL 连接数据库时,提示如下错误信息

环境

windows7 64bit

Oracle win64 11gR2

PL/SQL v9.0

详细错误信息

[plain] view plaincopy

  1. Initialization error  
  2. Could not initialize "C:\oracle\product\11.2.0\dbhome_1\bin\oci.dll"  
  3. Make sure you have the 32 bits Oracle Client installed.  
  4.   
  5. OCIDLL forced to C:\oracle\product\11.2.0\dbhome_1\bin\oci.dll  
  6. LoadLibrary(C:\oracle\product\11.2.0\dbhome_1\bin\oci.dll) returned 0  

问题原因

安装完后Oracle的 oci.dll 是64位的,而32位应用程序 PLSQL Developer 无法加载。

解决方案

1. 从 http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html 下载Oracle Client Package。 我下载的是Instant Client for Microsoft Windows (32-bit) 【instantclient-basic-nt-11.2.0.2.0.zip】 

2. 将 instantclient-basic-nt-11.2.0.2.0.zip 解压至 c:\oracle, oci.dll 所在目录为:c:\oracle\instantclient_11_2\

3. 设置环境变量

    TNS_ADMIN=c:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN

    NLS_LANG=AMERICAN_AMERICA.ZHS16GBK (注:NLS_LANG前半部分必须是AMERICAN_AMERICA,因为instant client不支持其他语言;而后半部分可以根据你数据库的字符集调整,如果数据库采用AL32UTF8,则可以设置AL32UTF8)

4. 启动PL/SQL Developer ,点击“取消”不要登录,菜单 --> Tools --> Perferences --> Connection 修改 Oracle_Home 和 OCI Library 的配置:
    OracleHome: OraDb11g_home1
    OCI library: C:\oracle\instantclient_11_2\oci.dll


5. 重新启动 PL/SQL并登录对应的数据库,连接正常,问题成功解决!

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