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 should I do if Oracle cannot open em?
- Oracle cannot be opened EMOracle is a commercial-grade database system that provides very rich functions and application support. Among them, EM (Enterprise Manager) is a web management tool provided by Oracle that can be used to manage and monitor Oracle databases. However, sometimes when we want to open EM, we may encounter some problems. This article will introduce some possible reasons why Oracle cannot open EM and the corresponding solutions. 1. Network connection problem when we try to open
- Oracle 1120 2023-04-17 14:55:47
-
- An article introducing the relevant knowledge of Oracle OCP
- Oracle OCP refers to Oracle Certified Professional. OCP certification is a form of Oracle professional certification examination and is a certificate issued by Oracle Corporation. Candidates need to pass the official Oracle certification exam to obtain this certificate, which proves that the candidate has sufficient skills and knowledge in the professional field of Oracle database. This article will introduce you to the relevant knowledge of Oracle OCP, including certification exams, exams
- Oracle 1260 2023-04-17 14:55:23
-
- How to install oracle silently on linux
- When using a Linux environment, you may sometimes need to install an Oracle database on the operating system. At this time, a simple and effective method is to use silent installation mode to install Oracle. This article will introduce how to use silent installation mode to install Oracle database. First, we need to download the installation file of the Oracle database. Before downloading the installation file, we need to confirm whether the Java Software Development Kit (JDK) has been installed on the Linux operating system we are running. You can do this by typing in the command line
- Oracle 825 2023-04-17 14:54:51
-
- How to query a table in oracle
- Oracle Querying a Table Oracle is a widely used relational database management system that helps users store, manage, and retrieve data in other database processes. When working with Oracle, one of the most basic operations is querying a table. Next, this article will introduce how to query a table. Querying a Single Table Oracle can query a table through SQL statements, the most basic of which is the SELECT statement. This statement helps you select data from one or more tables and return it to the user. Below is a
- Oracle 1280 2023-04-17 14:54:34
-
- Detailed explanation of oracle installation garbled problem
- Overview Oracle is a commonly used relational database management system. During the installation and use of Oracle database, you will encounter many problems, one of which is garbled characters. This article will introduce the reasons and solutions for garbled characters during Oracle installation. Problem description: During the Oracle installation process, garbled characters sometimes occur. For example, the text in the installation interface displays garbled characters, or when using the Oracle client for operations, garbled characters appear. Cause of the problem There are many reasons why Oracle installation is garbled, mainly including
- Oracle 2498 2023-04-17 14:54:12
-
- Understand the modification of Oracle stored procedures
- Oracle is one of the world's largest database companies, and its database management system is one of the most widely used databases. In the Oracle database, a stored procedure is an executable program that consists of a series of PL/SQL or SQL statements with a definite name and can be executed multiple times so that these statements can be reused. This article will take you through the modification of Oracle stored procedures. For stored procedures in Oracle database, when the requirements of the database change or developers need to update them, it is crucial to modify the stored procedures.
- Oracle 2334 2023-04-17 14:53:59
-
- How to delete foreign key in Oracle database
- As databases develop day by day, Oracle Database Management System (DBMS) becomes more and more popular. However, no matter which database system you are in, foreign key (Foreign Key) is a very important concept. In Oracle database, foreign keys are crucial because they allow us to establish associations in tables. However, sometimes we may need to delete certain tables or records, which involves deleting foreign keys. This article details how to delete foreign keys in Oracle database. 1. Basic knowledge of foreign keys first
- Oracle 1342 2023-04-17 14:53:41
-
- How to modify stored procedures in oracle
- With the development and changes of business, the modification of stored procedures has become a very important task in database management. Oracle database provides convenient stored procedure modification function, which can be achieved through the following steps. 1. View stored procedures. To modify stored procedures, you first need to understand which stored procedures currently exist, as well as their definitions, uses, parameters and other information. You can view information about stored procedures in the current database through the following SQL statement: ```sqlSELECT object_name, status,
- Oracle 3400 2023-04-17 14:52:51
-
- How to install Oracle Database 10g on Linux operating system
- With the continuous progress of information construction, database software has become an important part of enterprise information construction. Oracle is one of the most commonly used and widely used database software in the industry. This article will introduce how to install Oracle Database 10g on the Linux operating system. 1. First, we need to download the installation package of Oracle database 10g. Just download it from the official website or other trusted download websites. After the download is completed, we need to upload the installation package to the Linux system. You can upload using FTP or SCP. two,
- Oracle 1119 2023-04-17 14:52:19
-
- What is the difference between Oracle SQL and other SQL
- Oracle SQL is a specific SQL, which is a structured query language used for data query, update, insertion and other operations in Oracle relational database. SQL (Structured Query Language) is a general query language that is supported by almost all relational database management systems, but different database management systems may have some differences. So, what is the difference between Oracle SQL and other SQL? 1. Grammatical differences: Although
- Oracle 634 2023-04-17 14:51:57
-
- What to do if oracle files are lost
- As the complexity of our computer operations increases, problems and errors are inevitable. When you face the problem of missing Oracle files, the issue may take some time and effort to resolve. In this article, we will learn how to solve this problem. First, we need to identify the file type that is lost. If you have lost a configuration file, you can try to replace the lost file with a backup file. You can use backup software to fully back up your database instance and the data files in it. If there are any lost files, you can use the backup file to restore them to their original
- Oracle 916 2023-04-17 14:51:33
-
- What are the installation requirements for Oracle?
- Oracle is currently one of the most popular relational database management systems in the commercial field, providing enterprises with reliable and scalable data management solutions. For users who need to install Oracle database, certain requirements must be met. Let's take a look at the requirements for Oracle installation. 1. Hardware requirements The installation of Oracle database needs to meet certain hardware requirements, including CPU, memory, hard disk, etc. In terms of CPU, it is generally required to have at least a dual-core CPU. It is recommended to use a CPU with hyper-threading technology, which can greatly
- Oracle 1445 2023-04-17 14:50:58
-
- Discuss how to call stored procedures in Oracle
- Oracle database is a powerful relational database management system, in which stored procedures are one of the most important features. In Oracle, a stored procedure is a set of SQL statements written to complete specific tasks in the database, usually identified by a name. In this article, we will explore how to call stored procedures in Oracle. In Oracle, stored procedures are usually used to perform specific tasks, such as querying data from the database, updating data, deleting data, and inserting data. These stored procedures can be accessed via SQL
- Oracle 1100 2023-04-17 14:50:30
-
- How to change username and password in oracle
- Oracle is a very powerful database management system that is used by many businesses and organizations to store and manage important data. However, due to security and data protection reasons, administrators need to regularly change the username and password of Oracle users. In this article, we will introduce how to change username and password in Oracle database. Step 1: Stop the Oracle service First, you need to stop the running Oracle service. The service can be stopped by running: sudo systemctl
- Oracle 5114 2023-04-17 14:50:06
-
- What to do if Oracle accidentally deletes table space
- In database management, mistakes such as accidentally deleting table spaces are very common. Whether it is due to negligence or other unexpected factors, it may lead to unexpected conditions in the operation of the database. Especially in Oracle database management, accidentally deleting a table space may cause more serious consequences. This article will focus on this problem and talk about how to deal with the problem of accidentally deleting table spaces in Oracle database. The consequences of Oracle accidentally deleting a table space. When we accidentally delete a table space, Oracle will not be able to read any data in the table space.
- Oracle 1427 2023-04-17 14:49:18
Recommended Articles
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
