Found 115 Articles for RDBMS

You should consider the needs of the applications during designing a database. Object databases offer a unique approach to database design that can be beneficial in certain situations. In this article, we will discuss the conceptual design of object databases. Object database design Object-Oriented Model is process of representing real-world entities as objects in computer programs. It is fundamental aspect of Object Database Conceptual Design. Object-oriented modeling is more flexible and dynamic than traditional relational model. It enables developers to model complex relationships between objects more efficiently. Object-oriented modeling allows for inheritance, encapsulation, and polymorphism. It is easier to maintain ... Read More

Generally, there are two major types: object-oriented databases and object-relational databases. Both have their advantages and disadvantages. Choosing the right type for your project can be critical to its success. In this article, we will discuss object-oriented and object-relational databases along with their use cases. Object-oriented databases (OODBs) Object-oriented databases (OODBs) are designed to store and manipulate objects. It is similar to object-oriented programming languages, i.e. Java and Python. Objects can contain data, methods, and relationships to other objects. In OODB, the object itself is the storage rather than the representation of the data. This allows for more efficient and ... Read More

In database management systems (DBMS), super keys are an essential concept used to identify unique records in a table. A super key is a set of one or more than one attribute that can uniquely identify a record in a table. In this article, we will explore the number of possible super keys in a database and their significance. What is a Super Key? A super key is a group of attributes in a table that can identify each row in that table uniquely. It's different from primary and candidate keys because only the smallest possible super keys can be ... Read More

An architecture pattern is a way of organizing data in a logical and structured manner. So, it can be stored and accessed efficiently. NoSQL databases are different from traditional relational databases. Because Tables are not used to store data in it. It uses document-oriented, key-value or graph formats. It makes them more flexible. NoSQL databases can handle a wide variety of data types and sizes. It is suitable for big data applications. It can also provide faster performance than traditional relational databases. It is therefore ideal for applications that require real-time data processing. Architecture Patterns of NoSQL There are given ... Read More

Neo4j database is one of the most popular choices in graph databases. One of the reasons for this is its powerful query language, Cypher. Neo4j has developed its own query language called Cypher, which differs from SQL in that it operates on nodes rather than tables, rows, and columns. Its syntax is similar to SQL. But it is better suited for working with graph data. This is because Neo4j is a graph database that stores data in nodes and relationships. It can be visualized in a graph format rather than the traditional table format. In this article, we will discuss ... Read More

MySQL Recursive CTE allows users to write queries that involve recursive operations. Recursive CTE is an expression that is defined recursively. It is useful in hierarchical data, graph traversals, data aggregation, and data reporting. In this article, we will discuss Recursive CTE with its syntax and examples. Introduction Common Table Expression (CTE) is a way to give a name to the temporary result sets generated by each query in MySQL. The WITH clause is used to define a CTE, and multiple CTEs can be defined in a single statement using this clause. However, a CTE can only reference other CTEs ... Read More

In this article, we will discuss multimedia databases, its data representation, data storage, data retrieval, data management and applications of multimedia databases. Introduction To store pictures, videos, and sounds that people use for learning, fun, health, and advertising. We need a multimedia database. A multimedia database has all kinds of information, like words, pictures, sounds, and videos. It keeps track of all this information and finds data easily. These databases enable the storage and retrieval of multimedia data components. All media files in these databases are stored as binary strings and encoded according to their file types. Let's explore the ... Read More

In this article, we will discuss concepts of Multilevel Association Rule mining and its algorithms, applications, and challenges. Data mining is the process of extracting hidden patterns from large data sets. One of the fundamental techniques in data mining is association rule mining. To identify relationships between items in a dataset, Association rule mining is used. These relationships can then be used to make predictions about future occurrences of those items. Multilevel Association Rule mining is an extension of Association Rule mining. Multilevel Association Rule mining is a powerful tool that can be used to discover patterns and trends. Association ... Read More

When we work with data in MS SQL Server, we often need to perform calculations or filter results based on data type. Properly converting data types ensures that our calculations are accurate and our queries return the desired results. In this article, we will discuss various type conversions in MS SQL Server. Built-in Data Types in MS SQL Server MS SQL Server has various built-in data types to store different types of data. These are the common built-in data types in MS SQL Server − int: Used to store integers. decimal: Used to store decimal numbers. varchar: Used to ... Read More

Cassandra is a distributed NoSQL database that can handle a large amount of data. In Cassandra, data is organized and stored in keyspaces, which are the top-level containers that group tables together. Keyspace modification is a critical task in Cassandra that allows you to create, modify, and drop keyspaces to manage your data more efficiently. In this article, we will discuss the different ways to modify a keyspace in Cassandra with examples. Introduction In Cassandra, a keyspace is a namespace that defines the scope of data replication. It contains one or more tables. Each table has its own column family. ... Read More