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Data modeling is the process of creating abstract representations of the structure and relationships within a database, using techniques such as entity-relationship diagrams or schema diagrams, to provide a visual guide for database design and help stakeholders understand the organization and flow of data within a system.
Redis, an in-memory data structure store, is often used as a database, cache, and message broker. Its versatility and speed make it a popular choice among developers. The possibilities are endless when combined with Python, one of the most widely-used programming languages. In this article, we’ll explore the basics of […]
In cloud computing, data is the driving force behind innovation and business success. As businesses strive to extract valuable insights from vast and interconnected datasets, graph databases have emerged as a powerful solution. Amazon Web Services (AWS) Neptune is a fully managed graph database service that enables organizations to build […]
In MySQL, there isn’t a native BOOLEAN data type. However, BOOLEAN it is an alias for TINYINT(1). When you define a column of type BOOLEAN, MySQL internally creates it as a TINYINT(1) column. In this context: For example, the following two table definitions are equivalent: When you insert values into […]
Oracle has announced a series of significant enhancements to its MySQL HeatWave, introducing support for vector store, generative AI, and a range of in-database machine learning features. These updates are set to revolutionize the way customers interact with their data. One of the standout features is the vector store, currently […]
A window function in MySQL is a type of function that performs a calculation across a set of related rows without grouping or aggregating the data. Window functions are also known as analytic functions or ranking functions. Window functions are different from regular aggregate functions, such as SUM(), AVG(), MAX(), […]
To restart the MySQL server from within the MySQL command line interface, you generally need superuser or administrative privileges on the operating system on which the MySQL server is running. MySQL itself does not provide a SQL command to restart the server. However, you can accomplish this by calling a […]
In MySQL, VARCHAR and LONGTEXT are two different data types used to store character strings. VARCHAR is a variable-length character string type that can store up to 65,535 characters. When you define a VARCHAR column, you need to specify the maximum number of characters it can hold. For example, if […]
In MySQL, the GROUP BY keyword is used with the SELECT statement to group the result set by one or more columns. When a SELECT statement includes the GROUP BY clause, the result set is divided into groups based on the unique values in the specified columns. Then an aggregate […]
Choosing the right partition key is essential in designing and building scalable and reliable applications on top of DynamoDB. What is a partition key? DynamoDB supports two types of primary keys: Why do I need a partition key? DynamoDB stores data as groups of attributes known as items. Items are […]
A graph data structure represents a set of objects (called nodes or vertices) and the relationships between them (called edges). Graphs can model real-world entities and associations, such as social networks, transportation networks, and computer networks. There are many reasons why we use graph data structures. Some of the most […]