SQL Server Blog
MongoDB grouping commands: count, group, distinct should be considered separately. Number of items in the collection With the count() function you can get the number of elements in the...
The easiest way to get the database content is to use the find function. The action of this function is largely similar to the usual SELECT * FROM Table query, which extracts all strings. For...
PreambleDatabase plays an important role in every modern web application. Due to the dynamic nature of web applications nowadays, even the simplest applications require some storage, access, and...
PreambleMongoDB has a removal method to remove documents:db.users.remove({name : "Tom"})The remove() method returns the WriteResult object. If one document is deleted successfully, the result is the...
When switching from MS SQL to MySQL, apart from data migration, you must also transfer the application code, which is in the database.Earlier we discussed how to move MS SQL to a MySQL...
There are several ways to connect to a MySQL database in PHP. The most common are the MySQL API, MySQLi API, and PDO API (PHP data objects). The latter two support more functions than the old...
SQL (Structured Query Language) is a simple language, but it is not as simple when you work with datasets that contain millions of records.When you work with medium and large tables, writing...
MongoDB Documentation - There are several methods to update Document in MongoDB:updateOne: refreshes one document that meets the filtering criteria and returns information about the update...
The most popular database management system for Node.js at the moment is MongoDB. To work with this platform, you must first install the server MongoDB itself. More details on how to do this are...
MongoDB PHP: The database will receive a data stream from an external application or return this data back to it.Therefore, we will need to organize work between MongoDB and an application...
NoSQL is an approach to the implementation of scalable storage (database) of information with a flexible data model that differs from the classical relational DBMS.In non-relational...
SQL - in simple words, it is a programming language for structured queries (SQL, Structured Query Language), which is used as an effective way to save data, find its parts, update, extract from...
MongoDB Database - Having installed the DB, we can now add data to it. All data is stored in the DB in the BSON format, which is close to JSON, so we also need to enter data in this...
When you start working with MongoDB Database, the first thing you need to do is to install the database we need as a current database in order to use it later.To do this, use the use command...
To install MongoDB we download one distributed package from the official website www.mongodb.com/download/The official website provides distribution packages for different platforms: Windows,...
MongoDB implements a new approach to database construction, where there are no tables, schemes, SQL queries, external keys, and many other things that are inherent in object-relational...