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Found 6705 Articles for Database

4K+ Views
The practice of protecting database data from unauthorized access, theft, alteration, and destruction is known as database security. Protecting sensitive information from many risks, including hackers, nefarious insiders, and natural calamities, is the aim of database security. Organizations can implement database security safeguards using a variety of techniques. We will talk about some of the most popular database security control mechanisms in this article − Authentication Database Encryption Access control Inference control Flow control Database Security Applying Statistical Method Authentication Database security that verifies the user's login information stored in the database is known as database authentication. The ... Read More

20K+ Views
In Relational Database Model , constraints are guidelines or limitations imposed on database tables to maintain the integrity, correctness, and consistency of the data. Constraints can be used to enforce data linkages across tables, verify that data is unique, and stop the insertion of erroneous data. A database needs constraints to be reliable and of high quality. What are the Constraints of the Relational Database Model? In Relational Database Model, constraints refer to limitations placed on data or data processes. This indicates that only a particular type of data may be entered into the database or that only a ... Read More

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Data storage, retrieval, administration, and processing are all made possible by database management systems (DBMS), which are the foundation of the current computerized world. The DBMS employs several strategies to guarantee the consistency, integrity, and security of data. A DBMS's capacity to generalize data that is suitable for various applications is one of its most important features. To make sure that data is correct and current, DBMS generalization restrictions must be taken into account. By eliminating pointless elements and simplifying the material, generalization is the process of summing up the information. Making data more manageable and practical for a variety ... Read More

87K+ Views
In DBMS (Database Management Systems), constraints are guidelines or limitations imposed on database tables to maintain the integrity, correctness, and consistency of the data. Constraints can be used to enforce data linkages across tables, verify that data is unique, and stop the insertion of erroneous data. A database needs constraints to be reliable and of high quality. What are the Constraints of DBMS? In DBMS, constraints refer to limitations placed on data or data processes. This indicates that only a particular type of data may be entered into the database or that only a particular sort of operation can be ... Read More

817 Views
Developed to manage massive volumes of data across commodity servers, Apache Cassandra is a distributed, highly scalable NoSQL database management system. Cassandra's configurable consistency is one of its core characteristics, allowing users to combine data consistency with speed and availability. In this post, we will go through the various consistency levels in Cassandra and present examples of how to use them. A consistency level in Cassandra is the number of replicas that react before providing a response to a user. Cassandra's consistency is configurable, which means that any client may decide how much consistency and availability they want. It is ... Read More

383 Views
A database management system is a system tool that enables effective and convenient data storage, access, manipulation, and sharing. It facilitates access and storage of linked data. Data Dictionary Management, Database Access Languages, Data Transformation and Presentation, Data Storage Management, Multi-User Access Control, Data Integrity Management, Database Communication Interfaces, Application Programming Interfaces, and Backup and Recovery Management are just a few of the functionalities it includes. We'll go over the most typical DBMS interview queries in this post to help you be ready for meetings with major MNCs. Keys, constraints, functional dependencies, normalization, transactions, joins, and SQL queries are ... Read More

501 Views
1)What are the different types of constraints in a database and how are they used? Rules that limit the values that may be added to a table are known as constraints in databases. A database may have primary key constraints, foreign key constraints, unique constraints, check constraints, and not null constraints, among other sorts of restrictions. Foreign key constraints ensure that the values in a field match those in another table, whereas primary key constraints guarantee that each row in a table is distinct. While check constraints ensure that values in field match specific requirements, unique constraints guarantee that each ... Read More

3K+ Views
In the networking system, when one transmits the data it is very obvious that factors like interference, noise, and other disturbances can add to the transmitted signal which causes data corruption and it may lead to significant problems like mishearing, wrong interpretation therefore it is very important to make sure that transmitted data should be reliable, noise-free. To avoid above mentioned critical problem some techniques are there called error detection codes like CRC (Cycle redundancy check), Checksum which we are going to discuss in this article these error detection codes are added to the header of the data packet and ... Read More

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MySQL is a popular open-source relational database management system that is widely used in modern web applications. Go, on the other hand, is a fast and efficient programming language that is becoming increasingly popular for building web applications. In this article, we will discuss how to use Go with MySQL, including how to connect to a MySQL database and how to perform basic CRUD operations. Installing the MySQL Driver for Go Before we can start using Go with MySQL, we need to install the MySQL driver for Go. The easiest way to do this is by using the following command ... Read More

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In every database management system, stored procedures are a crucial component. Database programming is made more effective and manageable by its ability to encapsulate intricate SQL queries and business logic into reusable code blocks. But have you ever wondered if a saved process may be called repeatedly? This blog article will examine this query and go into the technicalities of recursive stored procedures. What is Recursion? Recursion is a programming method where a function or process invokes itself either directly or indirectly. Problems that may be divided into smaller, identical sub-problems are frequently solved using this method. Programmers can develop ... Read More