Label:One, cold backup A cold backup occurs when the database has been shut down properly and provides us with a complete database when it shuts down normally. Cold backup is a statement that copies critical files to another location. The fastest and safest method for bac
Back up the specified library mongodump-h ip-d dbname-o dir//-h back with server ip-d followed by database name No then backup all libraries-o after specifying where to back up it is a directoryBack up all libraries mongodump-h Ip-o dirBack up the specified collection mongodump-d mydb-c testc-o/TMP/TESTC//-c Specify the collection nameExport collection to JSON file mongoexport-d mydb-c testc-o/tmp/testc.jso
When dealing with databases, it is inevitable that data backup and recovery will occur. The following are the instructions used. I will leave them here for the time being.
Data backup:
E: \ mongodb-win32-x86_64-2.2.1 \ bin> export dump.exe -- db CpsCommodityInfo E: \ tables 20130329
Data Recovery:
E: \ mongodb-wi
Backup and recovery are important technologies for data storage. This is only a single machine learning record operation.MongoDB supports backup and recovery. The backup format is bson and the backup format is JSON and CSV.
A) export bson formatIt is mainly used for backup a
Preparatory work:
Need to advance in the VPS to install good lftp,lftp function more powerful, CentOS Direct execution: Yum install Lftp,debian execution: Apt-get install.
You need to create the/home/backup/directory on the VPS and create the backup directory on FTP.
If the VPS on the database is not much to use GoDaddy free space can (10GB space, 300GB traffi
Master-slave synchronization:
1. Create a database directory
Mkdir/mongodb/masterdb
Mkdir/mongodb/slavedb_1
Mkdir/mongodb/slavedb2.
2. Start the Master/Slave servers respectively.Start the master server to listen to port 10000
./Bin/mongod-dbpath/mongodb/masterdb/-- port1000
Mongodb database adding System Service tutorial, mongodb System Service 1. Create the mongod file in the/etc/init. d directory and grant the correct permissions:
root@ubuntu:/etc/init.d# touch mongodroot@ubuntu:/etc/init.d# chmod 755 mongod
2. Edit the mongod File
#!/bin/sh### BEGIN INIT INFO# Provides: mongod# Required-Start: $local_fs $syslog# Required-St
Cold backup occurs when the database is shut down normally. When the database is shut down normally, it will provide us with a complete database. Cold backup is one of the key files copied to another location.
Cold backup occurs w
Tags: and through director extended get database int backup technology shareOne: Handwritten tsql script 1, automatic backup Weekly full Backup of database, set Schedule Interval to weekly UseMasterGo
Declare @FileName nvarchar( the)
Set @FileName =N'D:\SQLBackupFolder\Te
Tags: MONGO backup restoreMongoDB Data BackupIn MongoDB we use the Mongodump command to back up MongoDB data. The command can export all data to the specified directory.The Mongodump command allows you to specify the server to which the exported data can be dumped by parameter.GrammarThe mongodump command script syntax is as follows:>mongodump-h dbhost-d Dbname-o
provided us with two
Modifier: $inc and $set.
① $inc modifier
$inc is the abbreviation of increase, students who have studied SQL Server should be familiar with, for example, we do an online user status record, each modification will be based on the original
Self-$inc The specified value, if this key is not in the document, the key is created, as the following example will read.
② $set modifier
Don't say anything, just go to the code.
This is the "word" created by
The Windows platform uses a MongoDB shell to connect to a MONGODB server and create a database
command line into the bin directory of MongoDB run Mongod.exe
mongod --dbpath c:\data\dbOr find the bin directory of MongoDB and double-click Run Mongod.exe. To outpu
switched to DB stady > db.createcollection (' School ')//Create School collection {"OK": 1} > Db.school.insert ({"id": 1, "name": "Lisi", "Score": 90})//Insert data into the collection Writeresult ({"ninserted": 1}) > Db.school.fin D ()//view data in collection {"_id": ObjectId ("5b4843900edf47ef3aa006f3"), "id": 1, "name": "Lisi", "Score": > for (var i=2;iImport and export of data
Exporting data in a library[[emailprotected] mongodb]#mongoe
Tags: MongoDB database command NoSQLMongoDB is a NoSQL database that uses the "set-oriented" (collection-oriented) principle, meaning that data is grouped in a dataset, called a collection (Collection). Each collection (Collection) has a unique identifying name in the database and can contain an unlimited number of obj
First, data backup operationsIn real-world scenarios, it is often necessary to back up business data for disaster preparedness, and MongoDB provides backup and recovery capabilities, namely the Mongodump.exe and Mongorestore.exe files in the MongoDB download directory, in the form of
A Some advantages of RMAN backup
1. RMAN detects and reports corrupted blocks of data.
2. RMAN can connect to the backup database without having to put the table space into hot backup mode. Additional build redo logs are generated during hot backup.
3. RMAN automatically
I. Back up the database 1. Open the SQL enterprise controller and click Microsoft SQL Server in the root directory of the console.
2. SQL Server group --> double-click to open your Server --> double-click to open the database directory
3. Select Your Database Name (for example, financial database cwdata) --> click too
Detailed examples of PHP operations on MongoDB databases (add, delete, modify, and query) (6). mongodb DatabasePHP operations on mongodb:Modules are required for PHP to operate mongodb.Official website can download: http://pecl.php.net/package/mongo downloadSet mongodb to user-authorized Startup ModeThe php Manual does not have some user authorization methods for
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