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MongoDB truncate collection

发布时间:2025/04/28 作者:JIYIK 分类:MongoDB

A collection is nothing but a folder that contains all the documents. When using capped collections, there is a cap on the number of records you can add to the collection. The maximum size of a document is 16MB. Sometimes you want to build...

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Deleting Duplicates in MongoDB

发布时间:2025/04/28 作者:JIYIK 分类:MongoDB

If you are a database administrator, you are probably familiar with duplicate entries. Duplicate entries are a common problem in database management. In this article, we will see how to remove duplicate entries in MongoDB, and we will also...

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Using findOneAndUpdate() method in MongoDB

发布时间:2025/04/28 作者:JIYIK 分类:MongoDB

This article will introduce the findOneAndUpdate() method in MongoDB. We will use this method to update the first matching and embedded document. Using findOneAndUpdate() method in MongoDB db.collection.findOneAndUpdate() Method updates the...

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Starting MongoDB from Windows

发布时间:2025/04/28 作者:JIYIK 分类:MongoDB

Use this MongoDB tutorial article to install and start MongoDB 5.0 Community Edition on Windows using the default installation wizard. This article uses the default MSI installation process to install MongoDB on Windows. However, system adm...

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$unset operator in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

This article will discuss how the $unset operator works in MongoDB. Additionally, we will demonstrate the use of this operator to remove a field from all documents in a MongoDB collection. $unset operator in MongoDB $unset is an operator us...

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Compass Filters in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

This short article will cover the various ways to use Compass filters in MongoDB . Compass Filters in MongoDB MongoDB has a GUI called Compass . It is also known as MongoDB GUI. Users can use MongoDB to inspect the contents of their stored...

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Sorting by timestamp in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

This article will introduce various methods of sorting timestamps in MongoDB. Sorting by timestamp in MongoDB sort() The method will sort documents in MongoDB. The method accepts a document containing a list of fields and the order in which...

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Deleting a user from a database in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

This article will explain how to delete a user from a MongoDB database. In addition, we will see an example to make the topic easier to understand. Deleting a User from a MongoDB Database Sometimes we need to remove a particular user from t...

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Deleting items by ID in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

Sometimes we need to delete data from a database based on specified criteria. Unlike other SQL databases, MongoDB does not include SQL queries for this purpose. Instead, it uses commands. This article will discuss how to delete documents ba...

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Using ISODate for date queries in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

This MongoDB tutorial article will explain Date() the methods. This article introduces different ways to query using dates. Date() Method in MongoDB Date() The method returns the date as a string or a Date object. In the MongoDB shell or mo...

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Return unique values in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

In this article, we will address how to use the MongoDB distinct() method to return unique values. In addition, returning unique values ​​in arrays and fields is discussed. In MongoDB, sometimes you may want to present or return unique...

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Case insensitive query in MongoDB

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

In this article, case insensitive queries are discussed briefly and in detail. Also, case insensitive search queries are explained in detail. This article discusses the following topics. Case-insensitive search Improve case-insensitive regu...

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MongoDB query nested objects

发布时间:2025/04/27 作者:JIYIK 分类:MongoDB

In this article, we will learn how to query nested objects in MongoDB. Querying nested objects in MongoDB MongoDB provides read operations to retrieve embedded or nested data from a collection or to search for embedded or nested documents....

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