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Aggregation in MongoDB

Content Overview : – What is Aggregation ? What is Aggregation? When it’s time to gather the metrics from MongoDB, maybe for some graphical representation or some other operation, there is no better technique than MongoDBaggregations. Aggregation in MongoDB is an operation used to process the data that returns the computed results.  Aggregation basically groups the data …

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How to install Django using virtualenv

let’s create a virtual environment (also called a virtualenv). Virtualenv will isolate your Python/Django setup on a per-project basis. This means that any changes you make to one website won’t affect any others you’re also developing. For this, we will be using a new directory DhruvPy We will make a virtualenv called myvenv. The general command will be in the …

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PHP array_column() Function

Usage The array_column() function returns the values from a single column in the input array. Syntax array_column(array,column_key,index_key); array: Required. Specifies the multi-dimensional array (record-set) to use column_key: Required. An integer key or a string key name of the column of values to return. This parameter can also be NULL to return complete arrays (useful together …

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Migrations In Laravel

Migrations are like version control for your database, allowing your team to easily modify and share the application’s database schema. Migrations are typically paired with Laravel’s schema builder to easily build your application’s database schema. If you have ever had to tell a teammate to manually add a column to their local database schema, you’ve …

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