Object database

Concurrency loss due to IO path critical sections (IPCS) Time lost in waiting queue (WT) to enter a critical section affects an application concurrency (AC), and impedes the application performance from scaling (AC ∝ 1 / WT) if a workload is bursty and highly parallelized. It is apparent that the wait time to enter a critical section is a function of the CS’s size (CSS) and the number of waiting threads (NWT) i.e. WT ∝ CSS * NWT. Furthermore, the work done (IO completed) is proportional to the…

Introduction The project YrPIM was briefly introduced with a basic reasoning of its creation. This probes into details of the idea behind the project which was to create a website that can be used by middle school students who are fall in the range of 11- 14 years of age. It is assumed that by this age a student has a basic understanding of how to operate a computer since the US consensus of 2014 states that approximately 83.8% of the houses have at least one computer. Of each of these houses…

We’ve used a lot of devices and storages so far in our life, but one thing that might be weird to people is the RAID. RAID stand for redundant array of independent disks and is a place for people to store their information. It is stored on CDs, instead of the normal flash drives and hard drives. RAIDS are different from the normal CDs, because they have to divide the data and spread the blocks into several megabytes for RAID to work. This is to make RAID efficient and fast. There are lots of…

responsibilities include physical design, installs, security, backups, and requirements of the database. 7. The trade-offs for concurrency controls are: a. If it’s too strict it can lead to locking the entire database. b. Other measures have low level of concurrency control. 8. Atomic transaction ensures that all the actions on the database are done or none of them are done at all. If none of them are done then the database remains unchanged. It’s important because if ensures that important…

Step 9 monitors the database application systems and improves performance by making amendments to the design as appropriate. 16.2 What factors can be used to measure efficiency? There are a number of factors that we may use to measure efficiency: • Transaction throughput:…

operating system Apache as the server, MQSQL as the Database and PHP…

software in the market to use. A person who is related with Relational Databases must consider the advantages and disadvantages of them and try to get the most efficient one. Many reasons to handle data is to keep information of something important which may improve a work that you are involve. In the following paragraphs, I will talk about general information of RDBMS and I will discuss and evaluate alternatives Relational Database Management Systems and the advantages and disadvantages that…

professionally execute his role: 1. A DBA should have good awareness of physical database design. 2. He should have the best knowledge of the operating system. 3. He should be excellent in all Oracle utilities and tools. 4. He must be able to deliver a planned database direction to the enterprise. 5. His personality must possess a sharp aptitude to execute the best performance of operating system and Oracle database. 6. He must have excellent and up-to-date knowledge of various scenarios of…

known as representation of objects, events which are stored and recorded in the computer and the data exists in a variety of forms such as values, variables and numbers and so on etc. EX: The database in a hospital contains data such as name of the patient, address, disease and contact number. Definition of Database: The term database is determined as data collection in an organized manner and every data present is related to each other in some other way. Definition of Database Management…

management: SQL server has a feature called policy-based management which is used to define and also implement policies in SQL server. It is used if we want to apply any policy against a table or database and then checks whether the database or table satisfies with the given policy. If target database objects are not satisfied with the policies then either a trigger should be fired or we can enforce it so that an administrator will come to know that there is some policy violation. It will manage…