2 – #mongoimport –host IP address –port Port -d Library name –c collection name --type=csv--headerline [--drop] Directory name/file name. csv Note: When the libraries and collections do not exist when the data is imported, the libraries and collections are created, the data is imported, and the data is imported into the collection by appending, using the-drop op
Linux under the mongodb installation and data import and export tutorial# View linux distributionsCat/etc/issue# View the linux kernel version numberUname-rI,Linux under The general steps of MongoDB installation1. Go to MongoDB 's website (https://www.mongodb.org/downloads)
Linux under the mongodb installation and data import and export tutorial# View linux release numberCat/etc/issue# View linux kernel versionUname-rI,Linux under The general steps of MongoDB installation1. Download the installation package for your system to the website of MongoDB
This article is reproduced to: https://www.cnblogs.com/qingtianyu2015/p/5968400.html
1. Export tool: Mongoexport 1, Concept: the Mongoexport tool in MongoDB can export a collection to a file in JSON format or CSV format. You can specify the exported data items through parameters, or you can export the data based on the criteria you specify. 2. Syntax: mon
style.2 exporting files in CSV format/test/mongodb/bin/mongoexport-d wxdata-c apachelog--csv-f host,time,method-o apachelog_csv.datConnected to:127.0.0.1Exported 2 recordsCat Apachelog_csv.datHost,time,method"66.249.69.194", "12/jun/2014:12:57:59", "GET"Parameter description:--csv means to export to CSV format-F indicates which examples need to be exportedMore detailed usage can be mongoexport–help to seeData imp
How to import MongoDB data into hive.
Principle:
By default, any table created in Hive is hdfs-based; That's, the metadata and underlying rows of data associated with the table are stored in HDFS. Mongo-hadoop now supports the creation of mongodb-based Hive tables and bson-b
Mongodb database backup and recovery in windowsI can talk about data backup to the c: \ data \ dump directory, first create this path. Go to the bin directory of mongodb.Mine is:C: \ Program Files \ mongodb \ binThe backup script is:// BackupExport dump-h 127.0.0.1: 27017-d test-o c: \
SQL Server data import to Mongodb 1. Idea: MySQL can be imported into Mongodb in the free version of MySQL. Therefore, the idea is to import SQL Server to MySQL and then import Mongo from MySQL. 2. Prepare 1. Install the mysql dat
Tags: format composite need to import collection data export God nbsp Share picture, two tools are located in the bin directory of the MongoDB installation directory Here's how they are used:OneExport Tool MongoexportThe Mongoexport tool in MongoDB can export a collection to a file in JSON or CSV format. You can spe
MongoDB's data import method is similar to that of MySQL.
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Data export:
Mongodump -- Host XXXXX -- Port 27017 -- username -- password passwd -- out/mnt/dbbak
In this way, the data is remotely stored in the local/mnt/dbbak.
The password u
[MongoDB] Export Import and Export export of data (1), export db1_import
In the software development, we usually are faced with a common question of exporting or importing data from database. So in this blog we will together study the specified DDB export and mongodb
password-D database-C table name-F field-Q conditional export--csv-o file name specific path (suffix format can be. dat or. csv); mongoimport Import the table, or some of the fields in the table : 1. restore a non-CSV file exported from an entire table Command format: mongoimport-h IP--port Port-u user name-p password-D database-C table name--upsert--drop file name specific path (--drop when you do not need to delete the source file can not add) 2
One, remote connection MongoDBConnection command:mongo-u username-p pwd 192.168.41.215:27017/database (database for user name)Second,mongodump backup DatabaseExport command:mongodump-h IP--port Port-u user name-p password-d database-o file exists path Detailed Explanation: The server address where the-H:MONGODB is located (must specify a port), if not specified, is the local 127.0.0.1:27017-U: User name-P: Password-D: The database that needs to be backed up (export entire
Requirement Environment:There is a project that needs to upgrade MongoDB sharding from 2.6 to 3.0 and use the WT engine, where 2.6 of the environment many collectiong turn on sharding, and the amount of data is large.Select Mongodump,mongorestore Mode
Problem:There are 2 problems with the restore step1) Large number of data
Mongoexport--help Export Parameter Help
Mongoimport--help Import Parameters Help
Summarize:
Mongoexport--host 172.20.41.xx--username--port xxx xxx--password 1234--db cmpdb--collection wangzs-f name-o E:\wan Gzs.datMongoimport--host 172.20.41.xx--port xxx--username xxx--password 1234--db cmpdb--collection wangzstemp E:\wangzs.dat
The exported Wangzs.dat file is in JSON format, which includes the _id field, and the _id field is imported when the new
, if it is not the public method, it needs to setaccessible (true); Then invoke the value of the field in the instance and database. All code: Directly copy the past can be used, you change the IP definition of your entity class just fine, if you can't add me QQ468165108 Jar Package used: Ojdbc14.jar,mongo-2.5.3.jar Jar:http://pan.baidu.com/s/1ktgnvoj Password: 69FZ, public void Odbctomongo () throws Exception {Mongo Mongo = new Mongo ("192.168.1.3", 30000);
DB db = Mongo.getdb ("test");
--fileUser_csv.datConnected to:127.0.0.1Imported 3 objects[Email protected] bin]#Parameter description:-type indicates the file format to import-headerline The first row is not imported because the first row is a column name-file indicates the file path to importAttention:CSV format is good, mainstream database support export to CSV format, so this format is very beneficial to heterogeneous data migration
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