PLSQL无法连Oracle 11g接数据库--问题解决
本人在PC机上安装了Oracle 11g R2版本的数据库服务，通过PL/SQL连接数据库时总是无法连接，下面具体说明下安装环境。
问题说明：
本人在PC机上安装了Oracle 11g R2版本的数据库服务，，通过PL/SQL连接数据库时总是无法连接，下面具体说明下安装环境。
PC操作系统: Window7 (64bit)
Oracle服务器版本：Oracle 11g R2 (（安装目录:D:\oracle\）(64bit)
PL/SQL版本：PL SQL 10.0
在配置好oracle的tnsnames.ora文件(D:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\)，内容如下：
# tnsnames.ora Network Configuration File: D:\oracle\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
DAVID =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = david)
)
)
并在Tools-->Preferences窗口中配置Oracle Home和Oracle library，如下图所示：
在PL/SQL的登陆界面却无法检测到oracle服务名DAVID，如下图：
在“Enter”键后，会弹出如下错误提示框，如下图：
问题分析
因为PLSQL没有64位版，通过32bit的PLSQL连接64位的Oracle时就会报错，需要一个32位的oracle客户端工具instantclient进行转换。
问题解决
1、下载oracle客户端
下载instantclient-basic-win32-10.2.0.5.zip ，下载地址：
2、安装instantclient
解压安装包instantclient-basic-win32-10.2.0.5.zip，解压目录：D:\Program Files\destination files\oracleclient
然后建立一个目录D:\Program Files\destination files\oracleclient\NETWORK\ADMIN
3、复制tnsnames.ora
将D:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN目录下的tnsnames.ora文件复制到D:\Program Files\destination files\oracleclient\NETWORK\ADMIN下
4、配置PLSQL
打开 Tools-->Preferences窗口中配置Oracle Home和Oracle library，如下图：
Oracle Home:D:\Program Files\destination files\oracleclient
Oracle library:D:\Program Files\destination files\oracleclient\oci.dll
5、重启PLSQL
重启PLSQL，在Oracle登陆界面上将出现DAVID数据库的服务名，如下图：
相关阅读：
Oracle 10g 安装后重启系统,用PLSQL连接报没有监听
ORA-03114 PLSQL过程编译断开连接错误
PLSQL 连接 Oracle简单配置
PLSQL批量Forall操作性能提升详解
使用Oracle SQLDeveloper连接数据库并创建用户
Oracle自带的PL/SQL Developer导入导出数据
在64位Win7系统下安装Oracle 11g和Oracle SQL Developer客户端
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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
1662
14
1418
52
1311
25
1261
29
1234
24
When might a full table scan be faster than using an index in MySQL?
Apr 09, 2025 am 12:05 AM
Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.
Can I install mysql on Windows 7
Apr 08, 2025 pm 03:21 PM
Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.
Can mysql and mariadb coexist
Apr 08, 2025 pm 02:27 PM
MySQL and MariaDB can coexist, but need to be configured with caution. The key is to allocate different port numbers and data directories to each database, and adjust parameters such as memory allocation and cache size. Connection pooling, application configuration, and version differences also need to be considered and need to be carefully tested and planned to avoid pitfalls. Running two databases simultaneously can cause performance problems in situations where resources are limited.
MySQL: Simple Concepts for Easy Learning
Apr 10, 2025 am 09:29 AM
MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.
Laravel Eloquent ORM in Bangla partial model search)
Apr 08, 2025 pm 02:06 PM
LaravelEloquent Model Retrieval: Easily obtaining database data EloquentORM provides a concise and easy-to-understand way to operate the database. This article will introduce various Eloquent model search techniques in detail to help you obtain data from the database efficiently. 1. Get all records. Use the all() method to get all records in the database table: useApp\Models\Post;$posts=Post::all(); This will return a collection. You can access data using foreach loop or other collection methods: foreach($postsas$post){echo$post->
RDS MySQL integration with Redshift zero ETL
Apr 08, 2025 pm 07:06 PM
Data Integration Simplification: AmazonRDSMySQL and Redshift's zero ETL integration Efficient data integration is at the heart of a data-driven organization. Traditional ETL (extract, convert, load) processes are complex and time-consuming, especially when integrating databases (such as AmazonRDSMySQL) with data warehouses (such as Redshift). However, AWS provides zero ETL integration solutions that have completely changed this situation, providing a simplified, near-real-time solution for data migration from RDSMySQL to Redshift. This article will dive into RDSMySQL zero ETL integration with Redshift, explaining how it works and the advantages it brings to data engineers and developers.
The relationship between mysql user and database
Apr 08, 2025 pm 07:15 PM
In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.
MySQL: The Ease of Data Management for Beginners
Apr 09, 2025 am 12:07 AM
MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.
