IT – Information Technology

What is Diffie – Helman Algorithm

Hello my dear friends. Today we are going to discuss about what is Diffie - Helman algorithm. The Diffie - Helman algorithm is a very important algorithm in computer security. Then without wasting many time let's learn about what is Diffie - Helman algorithm. For what purpose it is using. The Diffie - Helman algorithm invented in the year 1976. The invention is a collaboration of two people. They are Whitfield Diffie and Martin Helman. Diffie - Helman algorithm is a specific method of…

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How to solve blocking factor questions in DBMS
How to solve blocking factor questions in DBMS

How to solve blocking factor questions in DBMS

Hello friends! Nice to meet you all again. Today I have brought you a very interesting topic. This is also a kind of difficult lesson. Don’t worry we will discuss everything nicely. In a simple manner. The topic we are going to discuss today is blocking factor questions in DBMS. Sounds not familiar. So many students yet don’t know what is the proper name for this topic. You might have seen questions like asking to calculate the blocking factor for different indexing types. That’s…

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Query processing and Optimization
Query processing and Optimization

Query processing and Optimization

Hi! my dear friends. So we again meet with another post. Today we are going to discuss about very interesting topic. That is about query processing and optimization. Databases are all about queries. So many queries work on a single database. Query processing and optimization take important role in database management systems. This is also a very easy topic. We will learn it together. So let's start the lesson. Today the sub topics we are going to discuss is what is query optimization. What…

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Triggers Questions and answers
Triggers Questions and answers

Triggers Questions and answers

Hi! my dear friends. We discussed about the triggers theories in another post. Yet we couldn't discuss questions from triggers. I promised to write a post about trigger questions and answers. So here I brings you a post about triggers questions and answers for them. let's solve some questions. Previously also I told you this is a chapter that you have show your query writing skills. If you lack in SQL knowledge my dear friend you have to upgrade it. Before starting questions I…

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How to Write Stored Procedures
Database Stored Procedures

How to Write Stored Procedures

Hello Friends! We again meet with another post. That is about database stored procedures. This is also can be someone's hate chapter. As I told earlier this is also an easy chapter. Like triggers. If you learn the theories nicely then it would not be a problem anyway. How to write stored procedures are easier than triggers. If you already know triggers learning stored procedures is easy to you. Again I am telling if you are lack in query writing this chapter look little…

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How to Write Database Triggers
Database Triggers

How to Write Database Triggers

Hello friends! Today I have brought you another interesting topic. This can be someone's most hating chapter. After reading this article I am sure it will changed. Today our topic is how to write database triggers. Actually database triggers are very easy chapter. You might not agree with me now since you don't understand. When you understand it you will also say it. Clear your mind and read the post carefully and learn. You can score on this topic. So let's start. Database triggers…

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Timestamping in Database Management System
Timestamping in Database Management System

Timestamping in Database Management System

Hello students! Today I brought you another interesting article. Hope you are doing in your studies. Earlier we have discussed about concurrency control techniques. There we told we have two techniques. They are locking and timestamping. We discussed about locking concept. If you missed it here's the post. Database Locking. From this post we are going to discuss about timestamping in database management system. Without wasting time furthermore we will start the lesson. What is timestamping in databases Timestamping method is a success method…

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Concurrency Control Techniques
Concurrency Control Techniques

Concurrency Control Techniques

Hello friends today we will discuss about another interesting topic that is concurrency control techniques. .So we will start the post without wasting time. Here in this post we are going to discuss concurrency control techniques. Already you know what are concurrency issues happen in a database. If you don't know about it you can go through that article again. Here's the post. Concurrency problems. Know we know we have different conflicts in a transaction schedules as well as. If you couldn't read the post.…

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Transaction Schedule and serializability
Transaction Schedule and serializability

Transaction Schedule and serializability

Hello friends! This is a another article about database transactions. So today we will discuss about transaction schedules in DBMS. Therefore without wasting time we will start about transaction schedule and serializability. Please go through the whole article then you can learn about it well.  Topics for today Today we are going to discuss several sub topics under this topic. Here we discuss different transaction schedules. What is serializability schedule. What is serial and non serial schedule. How do you identify conflict serializability in…

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Concurrency control problems in DBMS
Concurrency control problems in DBMS

Concurrency control problems in DBMS

Howdy friends today we are going to discuss about concurrency control problems in DBMS. When databases work concurrently there are problems in concurrency control. In the real world transactions are not working individually. We know that. Let's see what are those concurrency issues. Those concurrency issues in database are dirty read, unrepeatable read problem, lost of update, phantom read, inconsistence analysis. Let's learn one by one what these things are. In order to understand these operations it's mandatory to know how read and write…

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