Method: 1. Execute the "select * from all_tables where owner='VTATEST';" statement; 2. Execute the "select * from user_tables;" statement; 3. Execute "select * from tabs;".
The operating environment of this tutorial: Windows 7 system, Oracle 11g version, Dell G3 computer.
All tables in the Oracle query database
Method 1:
select * from all_tables where owner='VTATEST';
all_tables Check out Check the tables under all users, including the tables you log in with, and then add where to the user name you want to check. (Remember to capitalize the user name)
Method 2:
select * from user_tables;
The query is only for the tables under the user you are logged in, and tables under other users will not be displayed. .
Method three:
select * from tabs;
This is the same as the second class, but the writing is simpler, and it also checks the table under the user you are in.
Recommended tutorial: "Oracle Tutorial"
The above is the detailed content of How to query all tables in oracle database. For more information, please follow other related articles on the PHP Chinese website!

Oracle's mission is to "help people see the value of data", and its core values include: 1) Customer first, 2) Integrity, 3) Innovation, and 4) Teamwork. These values guide Oracle's strategic decision-making and business innovation in the market.

Oracle Database is a relational database management system that supports SQL and object relational models to provide data security and high availability. 1. The core functions of Oracle database include data storage, retrieval, security and backup and recovery. 2. Its working principle involves multi-layer storage structure, MVCC mechanism and optimizer. 3. Basic usages include creating tables, inserting and querying data; advanced usages involve stored procedures and triggers. 4. Performance optimization strategies include the use of indexes, optimized SQL statements and memory management.

In addition to database management, Oracle software is also used in JavaEE applications, data grids and high-performance computing. 1. OracleWebLogicServer is used to deploy and manage JavaEE applications. 2. OracleCoherence provides high-performance data storage and caching services. 3. OracleExadata is used for high performance computing. These tools allow Oracle to play a more diversified role in the enterprise IT architecture.

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

Oracle software applications in the real world include e-commerce platforms and manufacturing. 1) On e-commerce platforms, OracleDatabase is used to store and query user information. 2) In manufacturing, OracleE-BusinessSuite is used to optimize inventory and production planning.

The reason why Oracle software shines in multiple fields is its powerful application and customized solutions. 1) Oracle provides comprehensive solutions from database management to ERP, CRM, SCM, 2) its solutions can be customized according to industry characteristics such as finance, medical care, manufacturing, etc. 3) Successful cases include Citibank, Mayo Clinic and Toyota, 4) The advantages lie in comprehensiveness, customization and scalability, but challenges include complexity, cost and integration issues.

Choosing MySQL or Oracle depends on project requirements: 1. MySQL is suitable for small and medium-sized applications and Internet projects because of its open source, free and ease of use; 2. Oracle is suitable for core business systems of large enterprises because of its powerful, stable and advanced functions, but at a high cost.

Oracle's product ecosystem includes databases, middleware and cloud services. 1. OracleDatabase is its core product, supporting efficient data storage and management. 2. Middleware such as OracleWebLogicServer connects to different systems. 3. OracleCloud provides a complete set of cloud computing solutions.


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

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

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