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：
-
- Some tips and methods for debugging stored procedures in Oracle
- Oracle stored procedures are precompiled database objects that can be executed repeatedly. In order to optimize database performance and save time, many developers use stored procedures. But when an error occurs in a stored procedure, debugging can become tricky. This article will introduce some tips and methods for debugging stored procedures in Oracle. 1. Set the debug flag of the stored procedure. In order to start debugging the stored procedure, you first need to set the debug flag in the code. Oracle provides a package called DBMS_DEBUG in which debugging flags are set. specific method
- Oracle 2020 2023-04-25 17:12:20
-
- How to solve the problem of not being able to connect to the oracle database
- When performing some database operations, we often encounter situations where we cannot connect to the Oracle database. This may cause unnecessary trouble and waste of time. If you have also encountered this situation, don’t worry, I will introduce you to several common solutions below. 1. Check whether the connection information is correct. When connecting to the Oracle database, make sure the connection information is filled in correctly, such as host name, port number, user name, password, etc. Check it for spelling errors or formatting errors. 2. Check whether the network is smooth and ensure the server where the Oracle database is located
- Oracle 6509 2023-04-25 17:13:35
-
- What does is mean in oracle?
- is in Oracle is a conditional statement used to determine whether a value meets a given condition. It is generally used together with other conditional statements (such as where, having, etc.) to filter and filter data. Specifically, is can be used in the following situations: 1. Determine whether a value is null. In Oracle, null represents an unknown or inapplicable value. Therefore, we need to use is null or is not null statement to check if a certain value is null. For example, suppose we have a table named
- Oracle 1063 2023-04-25 17:15:38
-
- How to modify Oracle views
- Oracle is an object-oriented database solution, in which views are a very important database object. In practical applications, we often need to modify the view to meet changes in business needs. In this article, we will delve into how to modify Oracle views. 1. Oracle View Overview A view is a virtual table that does not actually own data, but derives data from the base table. In Oracle, view is an important data structure, which is crucial for data query, analysis and permission control.
- Oracle 4988 2023-04-25 17:18:20
-
- Reasons and solutions for automatic shutdown of Oracle database
- Oracle database automatic shutdown problem analysis and solution Oracle database is an enterprise-level relational database. Its stability and reliability directly affect the security of enterprise data and business continuity. However, in the process of using the Oracle database, automatic shutdown sometimes occurs, which causes uneasiness and worry for database users. This article will analyze and give solutions from the following four aspects: 1. Cause analysis, 2. Log analysis, 3. Configuration check, 4. Solution. 1. Cause analysis Oracle database automatically shuts down
- Oracle 4874 2023-04-25 17:18:05
-
- How to debug stored procedures in Oracle
- Oracle database is a relational database management system widely used by major enterprises. Its powerful functions and stability are favored by people. In the actual development process, developers often need to write stored procedures to implement various business logic, and may encounter some problems when debugging stored procedures. This article will introduce how to debug stored procedures in Oracle database. 1. Use SQL Developer to debug stored procedures. SQL Developer is a free database development tool officially provided by Oracle. It provides
- Oracle 5474 2023-04-25 17:20:00
-
- How to export stored procedures in Oracle
- Oracle is a powerful, stable and reliable database that is widely used in enterprise-level systems. In database development, stored procedures are a very practical and flexible function that can improve the efficiency and stability of the database system. Sometimes, we need to export stored procedures from one database to another database for easy reuse. This article will introduce how to export stored procedures in Oracle. 1. What is a stored procedure? A stored procedure is a precompiled program that is stored and executed in a database. It can
- Oracle 3212 2023-04-25 17:22:04
-
- How does Oracle determine whether a table exists and delete it?
- Oracle database is a commonly used relational database management system with high scalability and security. When doing database management, we need to operate tables. Sometimes we need to delete a table. Before deleting, we need to determine whether the table exists. If it exists, delete it. This article will introduce how to achieve this operation. In the Oracle database, we can query whether the table exists through the following statement: ```sqlSELECT COUNT(*) FROM user_tables WHER
- Oracle 4545 2023-04-25 17:24:27
-
- Examples of how to create and execute stored procedures in Oracle
- Oracle is a very powerful database management system with many advanced functions and features, of which stored procedures are one of them. A stored procedure is a set of predefined SQL statements for database operations that can be stored in the database for later call use. In Oracle, stored procedures are written in PL/SQL, a language that combines SQL and programming. PL/SQL has strong data manipulation capabilities and process control capabilities, and can easily write efficient stored procedures. storage
- Oracle 4718 2023-04-25 17:27:02
-
- oracle11g installation tutorial sharing
- Oracle 11g installation tutorial Oracle 11g is a database management system launched by Orcale, which is widely used in enterprise-level applications. With the advent of the Internet and big data era, the role of database management systems has become increasingly important. Therefore, this article will introduce in detail the installation method of Oracle 11g to help readers quickly master this skill. 1. Preparation work Before installing Oracle 11g, you need to consider the following points: 1. Hardware configuration requirements: CPU: at least 1GHz Internal
- Oracle 6225 2023-04-25 16:07:04
-
- How to make a call with parameters in Oracle stored procedure
- An Oracle stored procedure is a pre-compiled, reusable SQL statement that is stored in the database and can be executed and called at any time. In Oracle stored procedures, you can use parameters to achieve more flexible calling. This article explains how to use parameters in Oracle stored procedures. ## Create a stored procedure and define parameters In Oracle database, you need to use the `CREATE PROCEDURE` statement to create a stored procedure. Here is a simple example: ``
- Oracle 1972 2023-04-25 09:29:30
-
- How to delete duplicate data in oracle
- When performing data processing, data duplication problems are often encountered. In order to ensure the accuracy of the data and the clarity of the data warehouse, we often need to delete duplicate data in the database. This article will introduce how to delete duplicate data in Oracle database. 1. Determine data duplication. Before deleting duplicate data, you first need to determine which data is duplicated. We can use the SELECT statement and GROUP BY statement to query for duplicate data. For example, we have a table named "tablename" which contains a table named "
- Oracle 3083 2023-04-25 09:27:46
-
- How to modify port in oracle
- Oracle is a popular relational database management system through which large amounts of data can be stored and managed. Oracle uses the default port 1521 to establish connections with clients. However, if you need to install multiple instances on the same computer, or if you need to implement network security restrictions through a firewall, you need to modify the Oracle port. This article will introduce how to modify Oracle's port. 1. Check the current Oracle port. Before modifying the Oracle port, we need to check the current Oracle instance.
- Oracle 3874 2023-04-25 09:27:09
-
- How to back up oracle
- In the field of data management, backup and recovery are very critical operations. Oracle is a widely used relational database management system, therefore, backing up the Oracle database is a necessary task to protect its data from various corruptions or failures. In this article, we will introduce how to backup Oracle database to ensure data security and reliability. 1. Backup types Oracle database supports multiple backup types, as shown below: 1. Full backup: Full backup refers to backing up the entire database. This type of backup contains
- Oracle 17292 2023-04-25 09:26:22
-
- How to modify oracle monitoring
- The listener in Oracle database is an important configuration that is responsible for listening for requests from the database instance and distributing them to the correct service. If there is a problem with the listener configuration, it may cause the database to malfunction or fail to connect, so for database administrators, modifying the configuration of the Oracle listener is a necessary skill. This article will introduce how to modify the configuration of the Oracle listener, including the following steps: 1. Confirm the current status of the listener 2. Edit the listener configuration file 3. Restart the listener 1. Confirm that the current status of the listener is being repaired
- Oracle 1945 2023-04-21 16:54:42
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
