Structure of DBMS (Database Management System): Users and Interfaces with Diagram: A DBMS – Database management system is a complex software system that stores a huge amount of data and handles multiple requests (insert, delete, update and retrieve) from users. Internally, various components constitute DBMS and each component is known to perform the unique functionality. … Read more
What is Schedule in DBMS? Types, Advantages, Disadvantages: In DBMS, the schedule is the sequence following which the instruction of transactions will be performed. It is a process using which transactions are lined for execution. It ensures that the operations don’t get overlapped when numerous transactions are running concurrently. Also See: What is Serializability in … Read more
Decomposition in DBMS? Types, Advantages, Properties, Issues: Decomposition can be defined as a database management system process for dividing a single relation into multiple sub-relations. Its main purpose is to break down the functions of a company into fine levels of detail. It eliminates the anomalies and redundancy from the database by breaking it up … Read more
What is Serializability in DBMS? Types, Advantages, and Significance: Serializability can be called a process used for finding the correct non-serial schedules in the database. It basically helps maintain the consistency in the database and often relates to the isolation features of a transaction. There is a solid sort of inconsistency caused by non-serial schedules … Read more
What is Traditional File Processing System And Its Characteristics: Before the use of computer, a manual file system was used to maintain the records and files. All the data was stored in files and it makes it easy to find any information. But this system was good only for small organizations having small number of … Read more
TCL Commands in SQL- Transaction Control Language Examples: Transaction Control Language can be defined as the portion of a database language used for maintaining consistency of the database and managing transactions in the database. A set of SQL statements that are co-related logically and executed on the data stored in the table is known as … Read more
Characteristics of Database Management System: At the end of this article you will be able to understand what are the basic Characteristics of Database management systems? There are numerous characteristics of database management system but a few of them are very important that are given below. Also See: Features of Database Management System Characteristics of … Read more
The Update is one of the DML (data manipulation) commands that are essentially used to update the existing data in the records/tuples. Pick a case of a company as an example that maintains the database for all the employees working for the company. But what happens when an employee decides to leave the company? His … Read more
Insert statement is a basic yet most useful command in SQL to insert new data (records) into the table in the database. There are various ways in which data can be inserted into a table. For instance, you can insert data into specific columns of a table or insert data in the entire row (consisting … Read more
As a SQL developer, often there are scenarios when you tend to manipulate and retrieve the data in a specific way. In other words, you would want to perform various operations. And knowing SQL operators is the key solution to all such requirements. So let us first understand What is an Operator? An operator in … Read more