OLAP (Online Analytical Processing) is data processing technique. It is used to query and analyze data. It analyze data in real time from multiple sources. In 1993, EF Codd introduced 12 rules for the relational database model for OLAP systems. These rules are known as "Codd’s rules". These rules serve ... Read More

Online Analytical Processing Server (OLAP) is used to enable users to perform analysis on information retrieved from multiple database systems concurrently. It operates on a multidimensional data model. Users can write query data across multiple dimensions, such as location, time, and categories (e.g., Hyderabad-> 2017 -> Sales data). In OLAP, ... Read More

On-Line Transaction Processing (OLTP) System is a type of computer system that helps manage transaction-related tasks. These systems are made to quickly handle transactions and queries on the internet. For instance, supermarket's POS (point of sale) system is an example of an OLTP system. Almost every industry nowadays uses ... Read More

Retrieval and Update Operations When we work with files, we usually do two types of operations: retrieval and update. Retrieval operations help us find specific records in the file and look at their data. Update operations change the file by adding, removing, or modifying records. Selection Conditions To do either ... Read More

Cassandra is a distributed NoSQL database system. It offers high scalability, availability, and fault-tolerance. It uses a decentralized architecture, where data is distributed across multiple nodes, and provides several operations to manipulate data. In this article, we will discuss operations on tables in Cassandra. Creating Tables The first operation in ... 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 ... 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 ... Read More

Oracle Label-Based Security (OLS) is a feature of the Oracle Database that provides fine-grained access control over sensitive data based on security labels. This feature enables organizations to enforce access control policies based on the sensitivity of the data rather than the traditional approach of user roles and privileges. In ... 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 ... Read More

According to many technical and research organizations, nowadays, cloud computing systems are dealing with a lot of data across multiple cloud organizations. It is hard for these organizations to deploy, ship, and maintain various versions of containers that perform specific tasks. It is difficult for managing large amounts of data ... Read More