Home Database Mysql Tutorial 关于Oracle分区表信息的查询

关于Oracle分区表信息的查询

Jun 07, 2016 pm 05:01 PM
database

查看所有用户分区表及分区策略(1、2级分区表均包括):SELECT p.table_name AS 表名, decode(p.partitioning_key_count, 1,

查看所有用户分区表及分区策略(1、2级分区表均包括):

SELECT p.table_name AS 表名, decode(p.partitioning_key_count, 1, '主分区') AS 分区类型,
p.partitioning_type AS 分区类型, p.column_name AS 分区键,
decode(nvl(q.subpartitioning_key_count, 0), 0, '无子分区', 1, '子分区') AS 有无子分区,
q.subpartitioning_type AS 子分区类型, q.column_name AS 子分区键
FROM (SELECT a.table_name, a.partitioning_type, b.column_name, a.partitioning_key_count
FROM user_part_tables a, user_part_key_columns b
WHERE a.table_name = b.NAME
AND b.object_type = 'TABLE') p,
(SELECT a.table_name, a.subpartitioning_type, b.column_name, a.subpartitioning_key_count
FROM user_part_tables a, user_subpart_key_columns b
WHERE a.table_name = b.NAME
AND a.subpartitioning_key_count 0
AND b.object_type = 'TABLE') q
WHERE p.table_name = q.table_name(+)
ORDER BY 5,4,1;

显示数据库所有分区表的信息:DBA_PART_TABLES

显示当前用户可访问的所有分区表信息:ALL_PART_TABLES

显示当前用户所有分区表的信息:USER_PART_TABLES

显示表分区信息显示数据库所有分区表的详细分区信息:DBA_TAB_PARTITIONS

显示当前用户可访问的所有分区表的详细分区信息:ALL_TAB_PARTITIONS

显示当前用户所有分区表的详细分区信息:USER_TAB_PARTITIONS

显示子分区信息显示数据库所有组合分区表的子分区信息:DBA_TAB_SUBPARTITIONS

显示当前用户可访问的所有组合分区表的子分区信息:ALL_TAB_SUBPARTITIONS

显示当前用户所有组合分区表的子分区信息:USER_TAB_SUBPARTITIONS

显示分区列显示数据库所有分区表的分区列信息:DBA_PART_KEY_COLUMNS

显示当前用户可访问的所有分区表的分区列信息:ALL_PART_KEY_COLUMNS

显示当前用户所有分区表的分区列信息:USER_PART_KEY_COLUMNS

显示子分区列显示数据库所有分区表的子分区列信息:DBA_SUBPART_KEY_COLUMNS

显示当前用户可访问的所有分区表的子分区列信息:ALL_SUBPART_KEY_COLUMNS

显示当前用户所有分区表的子分区列信息:USER_SUBPART_KEY_COLUMNS

--------------------------------------------------------------------------------------------------

怎样查询出Oracle数据库中所有的的分区表

select * from user_tables a where a.partitioned='YES'

 

删除一个表的数据是truncate table table_name;

删除分区表一个分区的数据是alter table table_name truncate partition p5;

如果我要将分区表中各个分区的数据都清空,可以用truncate table table_name直接删除;

也可以用:

alter table table_name truncate partition p1;

alter table table_name truncate partition p2;

alter table table_name truncate partition p3;

alter table table_name truncate partition p4;

alter table table_name truncate partition p5;

alter table table_name truncate partition p6;

逐个删除。

linux

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How does Go language implement the addition, deletion, modification and query operations of the database? How does Go language implement the addition, deletion, modification and query operations of the database? Mar 27, 2024 pm 09:39 PM

Go language is an efficient, concise and easy-to-learn programming language. It is favored by developers because of its advantages in concurrent programming and network programming. In actual development, database operations are an indispensable part. This article will introduce how to use Go language to implement database addition, deletion, modification and query operations. In Go language, we usually use third-party libraries to operate databases, such as commonly used sql packages, gorm, etc. Here we take the sql package as an example to introduce how to implement the addition, deletion, modification and query operations of the database. Assume we are using a MySQL database.

How does Hibernate implement polymorphic mapping? How does Hibernate implement polymorphic mapping? Apr 17, 2024 pm 12:09 PM

Hibernate polymorphic mapping can map inherited classes to the database and provides the following mapping types: joined-subclass: Create a separate table for the subclass, including all columns of the parent class. table-per-class: Create a separate table for subclasses, containing only subclass-specific columns. union-subclass: similar to joined-subclass, but the parent class table unions all subclass columns.

An in-depth analysis of how HTML reads the database An in-depth analysis of how HTML reads the database Apr 09, 2024 pm 12:36 PM

HTML cannot read the database directly, but it can be achieved through JavaScript and AJAX. The steps include establishing a database connection, sending a query, processing the response, and updating the page. This article provides a practical example of using JavaScript, AJAX and PHP to read data from a MySQL database, showing how to dynamically display query results in an HTML page. This example uses XMLHttpRequest to establish a database connection, send a query and process the response, thereby filling data into page elements and realizing the function of HTML reading the database.

iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos Jul 18, 2024 am 05:48 AM

Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps

Detailed tutorial on establishing a database connection using MySQLi in PHP Detailed tutorial on establishing a database connection using MySQLi in PHP Jun 04, 2024 pm 01:42 PM

How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())

How to handle database connection errors in PHP How to handle database connection errors in PHP Jun 05, 2024 pm 02:16 PM

To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.

Tips and practices for handling Chinese garbled characters in databases with PHP Tips and practices for handling Chinese garbled characters in databases with PHP Mar 27, 2024 pm 05:21 PM

PHP is a back-end programming language widely used in website development. It has powerful database operation functions and is often used to interact with databases such as MySQL. However, due to the complexity of Chinese character encoding, problems often arise when dealing with Chinese garbled characters in the database. This article will introduce the skills and practices of PHP in handling Chinese garbled characters in databases, including common causes of garbled characters, solutions and specific code examples. Common reasons for garbled characters are incorrect database character set settings: the correct character set needs to be selected when creating the database, such as utf8 or u

How to use database callback functions in Golang? How to use database callback functions in Golang? Jun 03, 2024 pm 02:20 PM

Using the database callback function in Golang can achieve: executing custom code after the specified database operation is completed. Add custom behavior through separate functions without writing additional code. Callback functions are available for insert, update, delete, and query operations. You must use the sql.Exec, sql.QueryRow, or sql.Query function to use the callback function.

See all articles