When the Oracle database is not uninstalled cleanly, residual files will appear in the registry and operating system, affecting subsequent installation or operations. The processing steps are as follows: check whether there are any residual entries in the registry; clean the operating system files and folders; reinstall the Oracle database; manually repair the Oracle service; and rebuild the Oracle network configuration.
What to do if the Oracle database is not uninstalled cleanly
#Question: What to do if the Oracle database is not uninstalled cleanly ?
Answer:
Incomplete uninstallation of the Oracle database will result in residual files and configuration information in the registry and operating system, affecting subsequent database installation or operations.
Processing steps:
1. Check whether there are any residual entries in the registry
- Open the registry editor (regedit.exe)
- Navigate to the following path: HKEY_LOCAL_MACHINE\SOFTWARE\Oracle
- Delete all subkeys related to the Oracle instance that was not completely uninstalled
2. Clean operating system files and folders
- Delete the Oracle installation directory (usually C:\oracle\
) -
Remove Oracle services and drivers:
- Open "Computer Management" (compmgmt.msc)
- Expand "Services and Applications" → "Services"
- Stop and delete Oracle-related services
-
Delete the following folder:
- %WINDIR%\oracle (Oracle files in the Windows directory )
- %ProgramFiles%\Oracle (Oracle files in Program Files)
- %WINDIR%\SysWOW64\oracle (32-bit Oracle files in 64-bit systems)
3. Reinstall the Oracle database
- Reinstall the Oracle database in a clean environment.
- Make sure to use the same version and patch as before the complete uninstall.
4. Manually repair the Oracle service
- If the database service still cannot start after reinstallation, please try to repair it manually:
-
Open command prompt (cmd.exe)
- Run with administrator privileges
-
Navigate to the Oracle service installation directory (usually For C:\oracle\
\crs\bin) - 64-bit system: cd C:\oracle\
\crs\bin\amd64 - 32-bit system: cd C:\oracle\
\crs\bin\i386
- 64-bit system: cd C:\oracle\
- ##Run the following command: caddsrv –init
- This will recreate the Oracle service and set it to start automatically
If there is a problem with the network configuration, please rebuild:
- Open the command prompt (cmd.exe)
-
Run with administrator privileges
\network\admin) - Rename sqlnet.ora and tnsnames.ora File
- Restart Oracle service
- Oracle will automatically create a new version of the file
The above is the detailed content of What should I do if the Oracle database is not uninstalled cleanly?. For more information, please follow other related articles on the PHP Chinese website!
Oracle Backup & Recovery: Ensuring Data Integrity & AvailabilityApr 10, 2025 am 09:40 AMThe core purpose of Oracle backup and recovery is to quickly restore the database to a consistent state when data is lost or corrupted. 1. Backup phase: Copy the database file to the backup media through RMAN or other tools. 2. Recovery phase: When a database fails, first restore the backup data, and then restore to the pre-failed state by applying the redo log file.
Oracle Real Application Clusters (RAC): Scalability & High AvailabilityApr 09, 2025 am 12:16 AMOracleRAC achieves high availability and scalability through multi-node shared database storage. Its working principle includes load balancing, failover and dynamic node expansion to ensure efficient operation of the system and data consistency.
Oracle Cloud Infrastructure (OCI): Deploying & Managing Oracle Databases in the CloudApr 08, 2025 am 12:09 AMDeploying and managing Oracle databases in OCI can be achieved through the following steps: 1. Create a database instance and set configuration parameters using OCIPythonSDK; 2. Configure network and storage resources; 3. Connect to the database and execute SQL queries; 4. Perform database backup and recovery operations; 5. Optimize database performance by adjusting resource configuration, network optimization and backup policies. This is a highly automated process where users only need to provide the necessary configuration parameters and the OCI will handle the remaining work.
Oracle Interview Questions: Crack Your Database Administrator InterviewApr 07, 2025 am 12:17 AMOracleDBA interview preparation requires mastering core knowledge such as database architecture, performance tuning, and backup and recovery. 1. Understand the Oracle database schema, including the relationship between instances and databases. 2. Master performance tuning methods, such as SQL tuning and index optimization. 3. Familiar with backup and recovery strategies and use RMAN and data pump tools. Through these preparations, you can demonstrate your professional skills in the interview and successfully pass the interview.
Advanced Oracle SQL Tuning: Optimizing Query Performance for ExpertsApr 06, 2025 am 12:06 AMOracleSQL tuning can improve query performance through the following steps: 1. Create an appropriate index, such as creating an index for the department column; 2. Analyze the execution plan, use the EXPLAINPLAN command to view and optimize; 3. Perform SQL rewrite, such as using subqueries to avoid unnecessary connection operations. Through these methods, the query efficiency of Oracle database can be significantly improved.
Oracle Database Security: Hardening & Protecting Your DataApr 05, 2025 am 12:17 AMThe security of Oracle databases can be achieved through a variety of measures, including authentication, authorization, encryption and auditing. 1) Use password files for user authentication and authorization; 2) Protect sensitive data through transparent data encryption (TDE); 3) Use virtual private databases (VPDs) to achieve fine-grained access control; these methods ensure the confidentiality, integrity and availability of data.
Oracle GoldenGate: Real-Time Data Replication & IntegrationApr 04, 2025 am 12:12 AMOracleGoldenGate enables real-time data replication and integration by capturing the transaction logs of the source database and applying changes to the target database. 1) Capture changes: Read the transaction log of the source database and convert it to a Trail file. 2) Transmission changes: Transmission to the target system over the network, and transmission is managed using a data pump process. 3) Application changes: On the target system, the copy process reads the Trail file and applies changes to ensure data consistency.
Oracle PL/SQL Deep Dive: Mastering Procedures, Functions & PackagesApr 03, 2025 am 12:03 AMThe procedures, functions and packages in OraclePL/SQL are used to perform operations, return values and organize code, respectively. 1. The process is used to perform operations such as outputting greetings. 2. The function is used to calculate and return a value, such as calculating the sum of two numbers. 3. Packages are used to organize relevant elements and improve the modularity and maintainability of the code, such as packages that manage inventory.
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
WebStorm Mac version
Useful JavaScript development tools
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SublimeText3 Linux new version
SublimeText3 Linux latest version
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
