backup | 易学教程

Cannot open backup device. Operating System error 5

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问题 Below is the query that I am using to backup (create a .bak ) my database. However, whenever I run it, I always get this error message: Msg 3201, Level 16, State 1, Line 1 Cannot open backup device \'C:\\Users\\Me\\Desktop\\Backup\\MyDB.Bak\'. Operating system error 5(Access is denied.). Msg 3013, Level 16, State 1, Line 1 BACKUP DATABASE is terminating abnormally. This is my query: BACKUP DATABASE AcinsoftDB TO DISK = \'C:\\Users\\Me\\Desktop\\Backup\\MyDB.Bak\' WITH FORMAT, MEDIANAME = \'C

How can I schedule a daily backup with SQL Server Express? [duplicate]

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问题 This question already has an answer here: SQL Server Automated Backups [closed] 3 answers I\'m running a small web application with SQL server express (2005) as backend. I can create a backup with a SQL script, however, I\'d like to schedule this on a daily basis. As extra option (should-have) I\'d like to keep only the last X backups (for space-saving reasons obviously) Any pointers? [edit] SQL server agent is unavailable in SQL server express... 回答1: You cannot use the SQL Server agent in

How to restore to a different database in sql server?

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问题 I have a backup of Database1 from a week ago. The backup is done weekly in the scheduler and I get a .bak file. Now I want to fiddle with some data so I need to restore it to a different database - Database2 . I have seen this question: Restore SQL Server database in same pc with different name and the recommended step is to rename the original db, but I am out of that option as I am in the production server and I cant really do it. Is there any other way of restoring it to Database2 , or

Restoring MySQL database from physical files

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Is it possible to restore a MySQL database from the physical database files. I have a directory that has the following file types: client.frm client.MYD client.MYI but for about 20 more tables. I usually use mysqldump or a similar tool to get everything in 1 SQL file so what is the way to deal with these types of files? Vincent A MySQL MyISAM table is the combination of three files: The FRM file is the table definition. The MYD file is where the actual data is stored. The MYI file is where the indexes created on the table are stored. You should be able to restore by copying them in your

Can I restore my source code that has been uploaded into Google AppEngine?

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问题 I recently had a hard drive crashed and lost all of my source code. Is it possible to pull/checkout the code that I have already uploaded to Google App Engine (like the most recent version)? 回答1: Since I just went to all the trouble of figuring out how to do this, I figure I may as well include it as an answer, even if it doesn't apply to you: Before continuing, swear on your mother's grave that next time you will back your code up, or better, use source control. I mean it: Repeat after me "

How do I register a custom filetype in iOS

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问题 I am currently creating a app in which i want to let the user backup their files (plist + m4a). I zip the files and change the extension to a custom one (specifically for my app, say \"*.MyBackup\"). The user can then either export via email or with iTunes file sharing. I have already read about CFBundleDocumentTypes but didn\'t really get what I had to do with them. The part where i am currently stuck at is how to associate my extension with my app. If the user sends himself an email with

How to backup sqlite database?

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问题 What\'s the proper way to do it? Do I just copy the .sq3 file? What if there are users on the site and file is being written while it\'s being copied? 回答1: The sqlite3 command line tool features the .backup dot command. You can connect to your database with: sqlite3 my_database.sq3 and run the backup dot command with: .backup backup_file.sq3 Instead of the interactive connection to the database, you can also do the backup and close the connection afterwards with sqlite3 my_database.sq3 "

Find files and tar them (with spaces)

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问题 Alright, so simple problem here. I\'m working on a simple back up code. It works fine except if the files have spaces in them. This is how I\'m finding files and adding them to a tar archive: find . -type f | xargs tar -czvf backup.tar.gz The problem is when the file has a space in the name because tar thinks that it\'s a folder. Basically is there a way I can add quotes around the results from find? Or a different way to fix this? 回答1: Use this: find . -type f -print0 | tar -czvf backup.tar

How to Copy (and increment) Multiple Instances of a File Using Batch File

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问题 I need to create a batch file that copies a file and increments it upon placing it at the destination. Example. copy C:\\TEMP\\MyDoc.txt E:\\MyData\\ Essentially, I need this copy command to copy every time I start it (which it does now just fine). I would like it to increment the file name instead of overwrite it though. If I ran this three times or 100 times (never a certain number) I would like to see on the \"MyData\" folder: MyDoc.txt MyDoc(1).txt ... Or Copy (1) I\'m not really sure

Can I restore a single table from a full mysql mysqldump file?

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I have a mysqldump backup of my mysql database consisting of all of our tables which is about 440 megs. I want to restore the contents of just one of the tables form the mysqldump. Is this possible? Theoretically, I could just cut out the section that rebuilds the table I want but I don't even know how to effectively edit a text document that size. uloBasEI You can try to use sed in order to extract only the table you want. Let say the name of your table is mytable and the file mysql.dump is the file containing your huge dump: $ sed -n -e '/CREATE TABLE.*`mytable`/,/CREATE TABLE/p' mysql.dump