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MongoDB : couldnt open /data/db/yourdb.ns errno:13 Permission denied
Starting MongoDB server, it shows error “Permission denied” on one of the database and shutdown the server automatically.
2019-08-18【[Java]】
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MongoDB Authentication example
This guide shows you how to enable authentication in MongoDB. The authentication is disabled by default. To configure it, you must first add a user to the “admin” database.
2019-08-18【[Java]】
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Spring Data MongoDB : Save binary file, GridFS example
In MongoDB, you can use GridFS to store binary files. In this tutorial, we show you how to use Spring Data’s GridFsTemplate to store / read image in / from MongoDB.
2019-08-18【[Java]】
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MongoDB import and export example
In this tutorial, we show you how to backup and restore MongoDB with the commands : mongoexport and mongoimport.
2019-08-18【[Java]】
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Spring Batch Example – XML File To MongoDB Database
In this tutorial, we will show you how to configure a Spring Batch job to read data from an XML file (XStream library) into a no SQL database (MongoDB). In additional, create a unit test case to launch and test the batch jobs.
2019-08-18【[Java]】
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Spring Data MongoDB : get last modified records (date sorting)
In Mongodb, you can use sort()to do the date sorting.
2019-08-17【[Java]】
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MongoDB find all documents where an array / list size is greater than N
Review following documents :
2019-08-17【[Java]】
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MongoDB Aggregate and Group example
In this tutorial, we will show you how to use MongoDB aggregate function to group documents (data).
2019-08-17【[Java]】
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MongoDB : write Aggregation result into a new collection
This article shows you 2 ways to export a MongoDB “aggregation” result into another new collection.
2019-08-17【[Java]】
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MongoDB Remove a field from array
Prior to MongoDB 2.6, there is no official function to $unset a field from array document.
2019-08-17【[Java]】
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MongoDB Update to upper case
A document, and you want to update all the ‘source’ values to UPPERCASE.
2019-08-17【[Java]】
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MongoDB How to remove a field from document
This MongoDB article shows you how to remove a field from document and array.
2019-08-17【[Java]】
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MongoDB Allow remote access
In this tutorial, we will show you how to enable remote access to a MongoDB server. Here is the tested environment :
2019-08-17【[Java]】
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Spring Data MongoDB Select fields to return
In MongoDB console, you can use field:1 to select the fields to return from a query :
2019-08-17【[Java]】
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Spring Data MongoDB Aggregation Grouping Example
In this tutorial, we will show you how to do the data grouping with Spring Data + MongoDB aggregation framework.
2019-08-17【[Java]】
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