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 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 1475 2023-04-17 14:49:18
-
- How to set encoding in oracle
- In Oracle database, character set is a very important part. Character sets determine how the database handles different characters, data types, and languages. In some cases, especially when working in Oracle multinationals or in multi-language environments, setting the appropriate character set is critical. Oracle supports many different character sets and languages, including Unicode and many single-byte and multi-byte character sets. By default, Oracle database uses the operating system character set, which may not be the best choice. In this article, we will discuss such
- Oracle 1736 2023-04-17 14:48:30
-
- What is the oracle import process?
- Oracle Database is a very popular relational database management system with an efficient data processing and storage engine that can be used to store, manage and process large amounts of data. For businesses and organizations, it is often necessary to import data from external data sources into Oracle databases for deeper analysis and operations. This article will introduce the import process in Oracle database to help users better understand the use of the database. 1. Data import type Before proceeding with the import process, you need to determine the data type to be imported. in Or
- Oracle 777 2023-04-17 14:47:54
-
- How to query all libraries in oracle
- With the popularization and deepening of enterprise information construction, the application scope of databases has become more and more extensive, and querying data in databases has become one of the essential operations for enterprise information operation management. In the Oracle database, we need to master how to query related operations of all libraries. This article will introduce the methods of Oracle querying all libraries from the following aspects. 1. Use the data dictionary to query all libraries. The data dictionary is a table built into the Oracle database. It stores
- Oracle 9130 2023-04-17 14:47:34
-
- What databases does Oracle have?
- Oracle is one of the world's largest developers of relational database management systems and has a wide range of database products. This article will introduce readers to the types of Oracle database products. 1. Oracle Database Standard Edition Oracle Database Standard Edition is the entry level of the Oracle Database product series. It provides basic database management functions and supports stand-alone and small applications. Sta
- Oracle 947 2023-04-17 14:47:16
-
- How to configure physical memory in oracle
- Oracle is a very popular relational database management system that is widely used in enterprises. For first-time users of Oracle, installation and configuration is one of the processes that must be mastered. During the installation of Oracle, the size of physical memory directly affects the performance and reliability of the database. Therefore, in order to ensure the stable operation of Oracle services, you must understand how to configure physical memory. 1. How to check physical memory? Before installing Oracle, you need to check how much physical memory your system has. in operation
- Oracle 967 2023-04-17 14:46:58
-
- How to log in to oracle
- Oracle is a popular relational database commonly used for the development and management of enterprise-level applications. Oracle has multiple versions and different configuration options, so its installation and use may vary. But basically, there are two ways to log in to Oracle: using SQL*Plus (a command line tool) and using Oracle SQL Developer (a graphical user interface (GUI) tool). This article will focus on how to use these two tools to log in to Oracle. 1. Using SQL*Plus
- Oracle 3984 2023-04-17 14:42:49
-
- How to close oracle
- Oracle is a popular relational database management system that is widely used in enterprise-level applications, data warehouses, and large-scale data processing systems. During the process of Oracle database maintenance and management, it is sometimes necessary to shut down the Oracle database. There are many ways to shut down the Oracle database. This article will introduce the three commonly used shutdown methods in detail. Method 1: Use the SQL*Plus tool to shut down the Oracle database. SQL*Plus is Oracle’s standard command line tool. It can be entered by typing SQ on the command line.
- Oracle 5100 2023-04-17 14:42:27
-
- Is oracle not case sensitive?
- Oracle is a widely used database management system that supports many different programming languages and operating systems. In Oracle, a common problem is case, because Oracle is not case sensitive, which means it treats uppercase and lowercase letters as the same characters. Therefore, when writing Oracle queries, you must be careful about casing issues. First, we need to understand the basics of Oracle query language. Oracle Query Language is a Structured Query Language (SQL) that allows us to retrieve and process data from a database
- Oracle 4069 2023-04-17 14:42:01
-
- How to modify column name in oracle
- In Oracle database, modifying column names is a common operation. When the table structure needs to be changed or the column names are inappropriate, we need to modify the column names. This article will describe how to modify column names through the ALTER TABLE statement. 1. Check the table structure. Before modifying the column names, we need to check the table structure to determine the column names that need to be modified. You can use the following statement to view the table structure: ```DESC table name;``` where DESC represents the abbreviation of describe, which is used to display the structure of the table. After executing this statement, we
- Oracle 7044 2023-04-17 14:41:29
-
- An article introducing Oracle SID settings and operation methods
- Oracle SID Settings Oracle database is a relational database management system widely used in the industry. When using Oracle database, system administrators and developers often need to set the SID to ensure the uniqueness and security of the database instance. This article will introduce Oracle SID settings and operation methods. 1. What is Oracle SID? Oracle SID (System Identifier) is an important concept in Oracle database. It is the
- Oracle 2523 2023-04-17 14:41:00
-
- How to convert oracle number
- With the continuous development of data processing, numbers are becoming more and more important in modern society, especially in the field of computer science. In the Oracle database, numbers are one of the most common data types. To process and use numbers correctly, you need to master some basic knowledge, such as the number type in Oracle and how to convert it. The number type in Oracle is a variable-capacity numeric data type that can contain signed or unsigned positive decimals, positive integers, negative decimals, and negative integers. In any case, O
- Oracle 2999 2023-04-17 14:40:39
-
- How to convert oracle character set
- Oracle character set conversion is a relatively common requirement, and it is usually applied when different regions or countries use different character sets. In this case, Oracle Database needs to convert the data from one character set to another to ensure the correctness and integrity of the data. In this article, we will discuss the basics of Oracle character set conversion, including the concept of character sets, why character set conversion is needed, common character set conversion methods, and specific operations on how to perform character set conversion. 1. The concept of character set. Character set refers to
- Oracle 1259 2023-04-17 14:40:13
-
- How to install Oracle database on CentOS6
- CentOS 6 Installation of Oracle Database Oracle Database is usually used for information management and data analysis in large enterprises. It is a commercial-level database software with powerful functions and high stability. This article will take you through the steps to install Oracle database on Centos6 operating system. Step 1: Install the necessary software Before installing the Oracle database, you need to install several necessary software. Open a terminal and enter the following command to install: ```yum -y install bin
- Oracle 711 2023-04-17 14:39:55
-
- Briefly describe the use of Oracle stored procedures and SQL statements
- Oracle stored procedures are a set of predefined PL/SQL blocks stored in the database that can be executed through Name calls. It is often used in development to improve database processing efficiency and security. SQL statement is the abbreviation of Structured Query Language and is a standard language for operating relational databases. In the Oracle database, SQL statements can be executed through command line input, SQL development tools, or applications. Stored procedures and SQL statements are two important programming methods in Oracle database. Let’s learn more about it below
- Oracle 930 2023-04-17 14:39:31
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
