Relationship among entities
Relationship A relationship is represented by diamond shape in ER diagram, it shows the relationship among entities. There are four types of relationships: One to … Read more
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Entity and Attribute
Entity An entity is an object or component of data. An entity is represented as rectangle in an ER diagram. For example: Let we have … Read more
SQL | DDL, DML, DCL Commands
Structured Query Language(SQL) is the database language which is used to perform certain operations on the existing database and also this language is used to … Read more
Advantages and Disadvantages of DBMS
Advantages of DBMS DBMS offers a variety of techniques to store & retrieve data DBMS serves as an efficient handler to balance the needs of … Read more
Introduction to Database
Before knowing database one must know about data. Data In simple words data can be facts related to any object in consideration. For example your … Read more
Introduction to DBMS
DBMS stands for Database Management System. DBMS means database with management system. That means a system used to manage database. Database Management System is a … Read more
CISC [Complex instruction set Computing]
It is very large instruction sets ,more than 300 separate instructions. Performance was improved by allowing the simplification of program compilers. The range of more … Read more
RISC [Reduced instruction set Computing]
It is small set of instructions. It contains at most 100 instructions set. Because of simple instructions, RISC chips require fewer transistors to produce processors. … Read more
Data and Resource dependencies:
Data Dependences: Instruction i produces a result that may be used by instruction j, or Instruction j is data dependent on instruction k, and instruction … Read more