delete all partitions

MySQL allows you to quickly delete all tables without deleting databases. This example describes how MySQL can quickly delete all tables without deleting databases. We will share this with you for your reference. The details are as follows: If you use phpmyadmin directly, it must be very simple. Check "data table", cli

not careful you will encounter some pits that are difficult to spot, resulting in a program that is not as expected. The pit here is the problem of traversing the list through a for loop and removing all elements. For example, the following example program creates a list, stores 0-3 sequentially, and then iterates through the list with a for loop to delete all t

On the "standby" page, click the "contacts" icon.2. Click the menu and select the contacts to be displayed ].3. Click the [All contacts] icon.4. Click the menu and select Delete ].5. Click Select all and then click finish ].6. Click OK to delete all conta

Tags: process bodyconstrain Delete begin cas type select## --Delete all constraints, tables, views, and other SQL scripts--###############################################--Delete all foreign KEY constraints--############################## ################# DECLARE @SQL VARC

When using SVN to manage code, if you submit the original SVN managed project to the new SVN directory, you need to delete all the contents of the. svn file in the original folder, or the direct commit will cause the failure.Note: It is a good idea to copy a new item first and then delete the. svn file under the backup folder. in order to avoid the original SVN p

Delete from tablename Truncate table tablename All records in the table can be deleted -- I used to know this command, but I don't know how it works and its performance. Today I am reading a book and posting it to share it with you. The delete statement deletes a row from the table each time, and saves the delete

When reading a document using software Word2007, we may insert a lot of annotations in order to better understand the article. But after a while, the document is already in place, and it feels like the annotations that were inserted are already superfluous, and the document page looks messy, so you need to delete all annotations. So here's the problem: because there are too many annotations inserted, it's

C # delete all files in a folder, Public static void DelectDir (string srcPath){Try {DirectoryInfo dir = new DirectoryInfo (srcPath); FileSystemInfo [] fileinfo = dir. getFileSystemInfos (); // return all files and subdirectories in the directory. foreach (FileSystemInfo I in fileinfo) {if (I is DirectoryInfo) // determine whether the folder {DirectoryInfo subdi

Label:1. If you have permission to delete a user, you can:Drop user user_name cascade;Add the cascade can delete the user data.Delete and then create the user.--Create an administrator userCreate user username identified by password default tablespace space_data (tablespace name) temporary tablespace space_temp (temporal tablespace name);--AuthorizationGrant CONNECT,DBA to user name;--Revision limitsALTER u

1, if there is a Plsql client, you can use the user login, select all the table right-click Drop.2. If you have permission to delete a user, you can:[SQL]View Plaincopy Drop user user_name cascade; Add the cascade can delete the user data.Delete and then create the user.[SQL]View Plaincopy --Create User Create user username profile def

1. If you have permission to delete a user, you can:Drop user user_name cascade;Add the cascade can delete the user data.Delete and then create the user. --Create Admin user user name identified by password default tablespace space_data (tablespace name) temporary tablespace space_temp (temporary tablespace name); --authorizing grant CONNECT,DBA to username; --Modify the quota alter user "username" QUOTA UN

No display Delete Reply show all replies show star reply show score reply PHP is not the three major Web development languages (Java, ASP. NET, PHP) the least quality of a language? No display Delete Reply show all replies show star reply show score reply PHP is not the three major Web development languages (Java, ASP.

Delete all files under a path and files under a path To delete all objects under a path: Delete the file. Insus. NET writes two methods, with the same name and heavy load. The principle is simple, that is, all directories and s

Recently engaged in Dede collection, mention weaving dream believe that we are not unfamiliar, I in the first time to collect, because will not write rules, and is not a separate collection of an article, but the list of articles in a one-time all collection, and other export data, I and the small partners are stunned, collected the news almost are missing arms and legs, At the beginning is also an article of the deletion, it is very annoying, however

First, batch and shell Directories and documents: Copy Code code as follows: C:\TESTFOLDER\TEST ├─test2 └─test3 Test.txt Delete the directory and all the files under it: Copy Code code as follows: RMDIR/S/q C:\TestFolder\test Deletes files in all directories, but the directory structure cannot be deleted:

SQL Delete duplicate rows (all or distinct)/*Delete a duplicate row SELECT statement Use the all or distinct option to display all rows in the table that meet the criteria, or delete duplicate rows of data, default to

Ask PHP regular expression to get all the picture names in the specified folder, and then delete the related pictures of the operation Recently helped a friend to do a backstage, which is used FCKeditor as an editor, but FCKeditor did not provide upload pictures after the picture name written to the database function, delete the news only

To migrate a project to another SVN directory at work, you need to first migrate the original. delete SVN, add it to the new SVN, and start to manually delete it. However, it is too time-consuming and labor-consuming. I searched several deletion methods on the Internet and tried them again. I summarized them, write a memo. 1. Run the following command in the DOS window: For/r 2. Add the "

Questions raised:With notepad++ writing code, there are a lot of blank lines, sometimes need to delete these blank lines, but the operation is more troublesome, especially sometimes we edit the document is particularly large, one line to delete is not possible, so you need to be able to quickly delete all the blank lin

The following is a unified script for deleting a table with the prefix "Prefix_": Copy CodeThe code is as follows: Sets the database connection information. Database server address, database user name, data password mysql_connect (' Database host ', ' Database user name ', ' Database Password '); Set the database name for the query mysql_select_db (' database name '); $rs =mysql_query (' Show Tables '); while ($arr =mysql_fetch_array ($RS)) { Set the database table prefixes to be deleted in bu