A DBMS is a group of interrelated data and a collection of programs to access that data. RDBMS is the variant of DBMS devised to remove the inefficiencies of DBMS. The common difference between DBMS and RDBMS is that DBMS just provide an environment where people could conveniently store and retrieve information with in the presence of redundant data. On the other hand, RDBMS uses normalization to eliminate the data redundancy. DBMS follows a navigational model while RDBMS uses the relational … [Read more...]
Difference Between Classification and Clustering
Classification and Clustering are the two types of learning methods which characterize objects into groups by one or more features. These processes appear to be similar, but there is a difference between them in context of data mining. The prior difference between classification and clustering is that classification is used in supervised learning technique where predefined labels are assigned to instances by properties, on the contrary, clustering is used in unsupervised learning where similar … [Read more...]
Difference Between Normalization and Denormalization
Normalization and denormalization are the methods used in databases. The terms are differentiable where Normalization is a technique of minimizing the insertion, deletion and update anomalies through eliminating the redundant data. On the other hand, Denormalization is the inverse process of normalization where the redundancy is added to the data to improve the performance of the specific application and data integrity. Normalization prevents the disk space wastage by minimizing or … [Read more...]
Difference Between Where and Having Clause in SQL
WHERE and HAVING clause are mainly used in the statement of SQL queries, these allow us to restrict the combination in the result relation through using a specific predicate. The major difference between WHERE and HAVING is that WHERE clause specifies the conditions for selecting the tuples (rows) from the relations, including join conditions if needed. On the other hand, HAVING clause specifies a condition on the groups being selected rather than on individual tuples. SQL stands for … [Read more...]
Difference Between C++ and Java
C++ and Java are most commonly used programming languages. Java has a strong influence of C++ as it was developed after C++ and both support OOP (Object Oriented Programming) paradigms. The crucial difference which differentiates both of the programming languages is that C++ is platform dependent while Java is platform independent. Java source code is converted into bytecode when compiled. At runtime, the interpreter executes this bytecode and gives output. Mostly Java is an interpreted … [Read more...]
Difference Between Data Warehouse and Data Mart
Data warehouse and Data mart are used as a data repository and serve the same purpose. These can be differentiated through the quantity of data or information they stores. The vital difference between a data warehouse and a data mart is that a data warehouse is a database that stores information-oriented to satisfy decision-making requests whereas data mart is complete logical subsets of an entire data warehouse. In simple words, a data mart is a data warehouse limited in scope and whose data … [Read more...]
Difference Between Star and Snowflake Schema
Star and snowflake schemas are the most popular multidimensional data models used for a data warehouse. The crucial difference between Star schema and snowflake schema is that star schema does not use normalization whereas snowflake schema uses normalization to eliminate redundancy of data. Fact and dimension tables are essential requisites for creating schema. You can also refer our previously published article on the difference between fact and dimension table to understand it … [Read more...]
Difference Between Program and Process
A program and a process are related terms. The major difference between program and process is that program is a group of instructions to carry out a specified task whereas the process is a program in execution. While a process is an active entity, a program is considered to be a passive one. There exist a many-to-one relationship between process and program, which means one program can invoke multiple processes or in other words multiple processes can be a part of the same program. Content: … [Read more...]
Difference Between SRAM and DRAM
SRAM and DRAM are the modes of integrated-circuit RAM where SRAM uses transistors and latches in construction while DRAM uses capacitors and transistors. These can be differentiated in many ways, such as SRAM is comparatively faster than DRAM; hence SRAM is used for cache memory while DRAM is used for main memory. RAM (Random Access Memory) is a kind of memory which needs constant power to retain the data in it, once the power supply is disrupted the data will be lost, that's why it is known … [Read more...]
Difference Between RPC and RMI
RPC and RMI are the mechanisms which enable a client to invoke the procedure or method from the server through establishing communication between client and server. The common difference between RPC and RMI is that RPC only supports procedural programming whereas RMI supports object-oriented programming. Another major difference between the two is that the parameters passed to remote procedures call consist of ordinary data structures. On the other hand, the parameters passed to remote method … [Read more...]
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