Check the Oracle instance name through the following steps: 1. Use SQL*Plus to connect to Oracle; 2. Run the query: SELECT INSTANCE_NAME FROM V$INSTANCE; 3. The query results will display the name of the current instance.
How to check the Oracle instance name
Step 1: Open the command prompt
- Windows: Press the "Windows" key "R" on your keyboard, and then enter "cmd" in the "Run" dialog box.
- Mac/Linux: Open a terminal window.
Step 2: Connect to Oracle using SQL*Plus
- In the command prompt, enter the following command:
<code>sqlplus username/password</code>
Where:
-
username
is your Oracle username. -
password
is your Oracle password.
Step 3: Run the query
- After connecting, run the following query:
<code>SELECT INSTANCE_NAME FROM V$INSTANCE;</code>
Steps 4: View the results
- The query results will display the name of the current instance.
Example:
<code>SQL> SELECT INSTANCE_NAME FROM V$INSTANCE; INSTANCE_NAME --------------- orcl</code>
In this example, the instance name is "orcl".
The above is the detailed content of How to read oracle instance name. For more information, please follow other related articles on the PHP Chinese website!

Oracle software can improve performance in a variety of ways. 1) Optimize SQL queries and reduce data transmission; 2) Appropriately manage indexes to balance query speed and maintenance costs; 3) Reasonably configure memory, optimize SGA and PGA; 4) Reduce I/O operations and use appropriate storage devices.

Oracle is so important in the enterprise software and cloud computing sectors because of its comprehensive solutions and strong technical support. 1) Oracle provides a wide range of product lines from database management to ERP, 2) its cloud computing services such as OracleCloudPlatform and Infrastructure help enterprises achieve digital transformation, 3) Oracle database stability and performance and seamless integration of cloud services improve enterprise efficiency.

MySQL and Oracle have their own advantages and disadvantages, and comprehensive considerations should be taken into account when choosing: 1. MySQL is suitable for lightweight and easy-to-use needs, suitable for web applications and small and medium-sized enterprises; 2. Oracle is suitable for powerful functions and high reliability needs, suitable for large enterprises and complex business systems.

MySQL uses GPL and commercial licenses for small and open source projects; Oracle uses commercial licenses for enterprises that require high performance. MySQL's GPL license is free, and commercial licenses require payment; Oracle license fees are calculated based on processors or users, and the cost is relatively high.

Oracle's evolution from database to cloud services demonstrates its strong technical strength and market insight. 1. Oracle originated in the 1970s and is famous for its relational database management system, and has launched innovative functions such as PL/SQL. 2. The core of Oracle database is relational model and SQL optimization, which supports multi-tenant architecture. 3. Oracle cloud services provide IaaS, PaaS and SaaS through OCI, and AutonomousDatabase performs well. 4. When using Oracle, you need to pay attention to the complex licensing model, performance optimization and data security issues in cloud migration.

Oracle is suitable for enterprise-level applications that require high performance and complex queries, and MySQL is suitable for web applications that are rapidly developed and deployed. 1. Oracle supports complex transaction processing and high availability, suitable for financial and large ERP systems. 2.MySQL emphasizes ease of use and open source support, and is widely used in small and medium-sized enterprises and Internet projects.

The differences in user experience between MySQL and Oracle are mainly reflected in: 1. MySQL is simple and easy to use, suitable for quick access and high flexibility scenarios; 2. Oracle has powerful functions, suitable for scenarios that require enterprise-level support. MySQL's open source and free features attract startups and individual developers, while Oracle's complex features and tools meet the needs of large enterprises.

The difference between MySQL and Oracle in performance and scalability is: 1. MySQL performs better on small to medium-sized data sets, suitable for fast scaling and efficient reading and writing; 2. Oracle has more advantages in handling large data sets and complex queries, suitable for high availability and complex business logic. MySQL extends through master-slave replication and sharding technologies, while Oracle achieves high availability and scalability through RAC.


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

WebStorm Mac version
Useful JavaScript development tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

Zend Studio 13.0.1
Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
