current location：Home>Technical Articles>Database>Oracle
- Direction：
- All web3.0 Backend Development Web Front-end Database Operation and Maintenance Development Tools PHP Framework Daily Programming WeChat Applet Common Problem Other Tech CMS Tutorial Java System Tutorial Computer Tutorials Hardware Tutorial Mobile Tutorial Software Tutorial Mobile Game Tutorial
- Classify：
- What is oracle database used for?
- Oracle Database is a relational database management system used in a wide range of applications, including transaction processing systems, data warehousing, and data mining. Its main advantages include: reliability, scalability, high performance, security, ease of management and support for multiple platforms.
- Oracle 950 2024-05-10 04:15:26
- How much memory does oracle require?
- The amount of memory required by Oracle depends on database size, activity level, and required performance level: for storing data buffers, index buffers, executing SQL statements, and managing the data dictionary cache. The exact amount is affected by database size, activity level, and required performance level. Best practices include setting the appropriate SGA size, sizing SGA components, using AMM, and monitoring memory usage.
- Oracle 495 2024-05-10 04:12:15
- How big is the oracle database?
- Oracle database size depends on data volume, table structure, indexes, and temporary space. Influencing factors include: Data volume: The largest factor affecting database size. Table structure: Tables with complex structures will be larger. Indexes: Indexes can significantly increase database size. Temporary tables and temporary space: storing temporary data will also increase the size.
- Oracle 1137 2024-05-10 04:09:17
- How much data can an oracle database store?
- The storage capacity of Oracle database depends on factors such as hardware limitations, disk space, memory, data block size, table space, indexes, data types, compression, etc. Generally speaking, large enterprise databases can store terabytes or even petabytes of data, while small business or personal databases may only have a few hundred gigabytes or less of data.
- Oracle 832 2024-05-10 04:06:17
- What does an oracle database server consist of?
- Oracle Database Server consists of seven main components: 1. Instance (manages connections and data processing); 2. Database (stores actual data); 3. SGA (caches data and code, improves performance); 4. PGA (stores user sessions) information); 5. Background process (performs critical tasks); 6. Network service (handles connection and authentication); 7. Operating system (provides underlying resource management).
- Oracle 512 2024-05-10 04:03:17
- Oracle database server hardware configuration requirements
- Oracle database server hardware configuration requirements: Processor: multi-core, with a main frequency of at least 2.5 GHz. For large databases, 32 cores or more are recommended. Memory: At least 8GB for small databases, 16-64GB for medium sizes, up to 512GB or more for large databases or heavy workloads. Storage: SSD or NVMe disks, RAID arrays for redundancy and performance. Network: High-speed network (10GbE or higher), dedicated network card, low-latency network. Others: Stable power supply, redundant components, compatible operating system and software, heat dissipation and cooling system.
- Oracle 635 2024-05-10 04:00:28
- How many connections does oracle database support?
- The number of Oracle Database connections is affected by version, hardware, application, and workload. According to official guidelines, each 5GB of RAM can support approximately 50 (simple applications), 25 (moderate complexity), or 10 (very complex) connections. Actual connection capacity may vary and requires performance testing to determine.
- Oracle 360 2024-05-10 03:54:17
- What are the data types supported by Oracle database?
- Oracle database provides diverse data types, including: numeric types: INTEGER, FLOAT, DOUBLE PRECISION, NUMBER, DEC text types: CHAR, VARCHAR2, CLOB, NCLOB date and time types: DATE, TIME, TIMESTAMP, INTERVAL Boolean type: BOOLEAN Binary types: BLOB, BFILE
- Oracle 1050 2024-05-10 03:51:17
- Does oracle database support sql language?
- Yes, Oracle Database supports the SQL language. The applications of SQL in Oracle database include: 1. Data query; 2. Data update; 3. Data management; 4. Database management; 5. Data operation.
- Oracle 1062 2024-05-10 03:45:24
- How much memory is needed to use oracle database
- The amount of memory required for an Oracle database depends on the database size, workload type, and number of concurrent users. General recommendations: Small databases: 16-32 GB, Medium databases: 32-64 GB, Large databases: 64 GB or more. Other factors to consider include database version, memory optimization options, virtualization, and best practices (monitor memory usage, adjust allocations).
- Oracle 538 2024-05-10 03:42:18
- What is the hardware environment for Oracle installation?
- Hardware environment requirements for Oracle database installation include: Certified server: with sufficient processing power, memory, and redundant components. Multi-core CPU: High clock speed and multiple cores. Sufficient memory: meets workload needs. High-performance storage: SSD or hybrid storage array (RAID configuration). Stable network: acceptable bandwidth and latency. Compatible operating systems: Windows, Linux or UNIX, matching database version. Certified virtualization platform (optional): Follow Oracle best practices.
- Oracle 1018 2024-05-10 03:39:18
- What services need to be started in oracle database
- The startup services required to start the Oracle database include: Oracle TNS Listener (for connection request routing) Oracle Database Service (for managing database instances) Oracle Server Manager (for internal process management) Oracle Log Writer Process (for write rewrite) Make log files) Oracle Checkpoint Process (for writing data files) Oracle Process Monitor (for monitoring and restarting processes) Oracle Lock Manager (for managing locks and latches
- Oracle 379 2024-05-10 03:36:16
- Do Oracle database need to configure environment variables?
- Yes, using Oracle database requires configuring the following environment variables: ORACLE_HOME: The path to the Oracle software installation directory. PATH: The path containing the path to the Oracle executable file. LD_LIBRARY_PATH (Linux/Unix only): Path containing paths to Oracle shared libraries.
- Oracle 1055 2024-05-10 03:33:15
- To start the oracle database, which service must be started?
- Required services required to start an Oracle database: Oracle Database Listener Service: It listens for client connection requests and routes them to the database instance. How to start the Oracle Database Listener Service: Windows: Find and start the "OracleXXXListener" service in the Services Control Panel. Linux/Unix: Use the "lsnrctl start" command to start the listener service.
- Oracle 1186 2024-05-10 03:30:21
- How long will Oracle database logs be kept?
- The retention period of Oracle database logs depends on the log type and configuration, including: Redo logs: determined by the maximum size configured with the "LOG_ARCHIVE_DEST" parameter. Archived redo logs: Determined by the maximum size configured by the "DB_RECOVERY_FILE_DEST_SIZE" parameter. Online redo logs: not archived, lost when the database is restarted, and the retention period is consistent with the instance running time. Audit log: Configured by the "AUDIT_TRAIL" parameter, retained for 30 days by default.
- Oracle 747 2024-05-10 03:27:19
Tool Recommendations
jQuery enterprise message form contact code
jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29
HTML5 MP3 music box playback effects
HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.
Player special effects
2024-02-29
HTML5 cool particle animation navigation menu special effects
HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29
jQuery visual form drag and drop editing code
jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29
Organic fruit and vegetable supplier web template Bootstrap5
An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03
Bootstrap3 multifunctional data information background management responsive web page template-Novus
Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02
Real estate resource service platform web page template Bootstrap5
Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02
Simple resume information web template Bootstrap4
Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02
Cute summer elements vector material (EPS PNG)
This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09
Four red 2023 graduation badges vector material (AI EPS PNG)
This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29
Singing bird and cart filled with flowers design spring banner vector material (AI EPS)
This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29
Golden graduation cap vector material (EPS PNG)
This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27
Home Decor Cleaning and Repair Service Company Website Template
Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09
Fresh color personal resume guide page template
Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29
Designer Creative Job Resume Web Template
Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
Modern engineering construction company website template
The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
