Apache Airflow is a popular open-source platform for scheduling and orchestrating complex workflows. It is used by many companies to manage their ETL pipelines, machine learning workflows, and other data-driven processes. In this article, we...
Read MoreJSONiq JSONiq is a query language that is outlined for the widely known JSON data model. The most important conceptions of jSONiq were derived from the hard learnt lesson for over 30 years of relational...
Read MoreBefore going in detail about types of indexes in MongoDB let’s talk a little about what indexes does in your database and how it help you to speed up your database search queries. When we...
Read MoreIf you come from the world of relation database then you certainly know that the best way to keep your data and design your scheme is to keep them in third normal form 3NF, you...
Read MoreIn MongoDB you must have ID for each collection you create and the data type that you can store in the ID field is limited only to arrays in other word you can use all kinds of data type including timestamp, integer, string and etc. But you cannot use array as your document id as...
[ Click to Continue ]In NoSQL databases world there is no tables instead you store your data in collections which is similar to normal relation database table they are not really a table in structure but if you compare it with relation database you can do so with tables, collection in mongo is kind of scope which defines and...
[ Click to Continue ]Your application always stores the data that is given to it by the user in the memory and then it stores that data to a storage medium device mainly the disk or other type of storage devices, and MongodDB uses memory mapped files as the server cannot stores all its information in the memory instead...
[ Click to Continue ]For demo purpose we are going to configure three servers primary, secondary and arbiter servers and we are going to do this in local computer for testing purpose only in real world you need separate servers or you can use virtual machine to use seprate virtual machines for each servers,open command line and paste the...
[ Click to Continue ]To start programming I will just briefly discuss what really a PL/SQL is why I go briefly is because maybe you already know what it really is and you just want to jump in to start programming or you have read somewhere else what really it’s, PL/SQL is nothing but a programming language for Database...
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Teradata announced several new capabilities to its database that take advantage of new technology including the new Teradata Studio, Smart Loader and more. WASHINGTON — Teradata, a provider of analytic data solutions, has announced new database capabilities that enable customers to deliver real-time agility. The new Teradata Database capabilities include workload management features, Teradata Data...
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What is DocumentID in MongoDB?