Online Database, IT, Database design, Database management system, Algorithms and Data Structures, Data Science tutor
3 weeks ago
Database management system designed to efficiently handle both (transactions) and (aggregate queries) workloads.
The system consists of three main components:
Transaction Manager, Data Manager, and Scheduler. In this overview, I'll outline the requirements for each one
Transaction Manager
The Transaction Manager reads commands from multiple program files concurrently and manages transactions.
It supports the following operations:
B:
Begin (Start) a new transaction or process.
C:
Commit (End) current transaction or process.
A:
Abort (End) current transaction or process.
Q:
Quit (terminate) current script.
I:
Insert a new record into a table.
U:
Update the intensity of a coffee type.
R:
Retrieve record(s) with a specific coffeeID.
T:
Retrieve all records from a table.
M:
Retrieve the name for all records with a specific .
G:
Count the number of with a specific .
Operations R, U, I, and T are performed on the row buffer, while operations M and G are performed on the column buffer.
The Transaction Manager writes parsed operations and transactions to a log file for demonstration purposes.Data Manager
The Data Manager is responsible for managing data in main memory and secondary storage, as well as for recovery. It handles disk organization, main memory organization, and integration with the Transaction Manager.
Key tasks include:
Defining the organization of each column data file on disk.
Implementing a Bloom filter access method on the coffeeID attribute.
Implementing a Least Recently Used (LRU) page replacement mechanism.
Keeping data synchronized and consistent between buffers and disk.
Recording all Data Manager actions in a log file.
Scheduler
The Scheduler is responsible for scheduling operations from transactions. More details about this phase will be provided later.
Level:
Intermediate
Gender Preference:
None
Meeting options:
Available online - via skype etc.
-
Data Management Officer
15 hours ago
Dhaka, Dhaka, Bangladesh International Centre for Diarrhoeal Disease Research Full timeJob DescriptionDescription ->icddr,b is a Bangladesh-based international health research institute that aims to address public health challenges through high-quality scientific research and innovation. The organization values diversity, including women and individuals with disabilities.The main goal of the project, part of the Programme for Emerging...
-
Dhaka, Dhaka, Bangladesh UNICEF - United Nations Children's Fund Full timeUNICEF works in over 190 countries and territories to save children's lives, defend their rights, and help them fulfill their potential, from early childhood through adolescence.At UNICEF, we are committed, passionate, and proud of what we do. Promoting the rights of every child is not just a job – it is a calling. UNICEF is a place where careers are...
-
Statistics and Data Analysis Associate
5 days ago
Dhaka, Dhaka, Bangladesh United Nations High Commissioner for Refugees Full timeJob DescriptionDescription –>All UNHCR staff members are accountable to perform their duties as reflected in their job description. They do so within their delegated authorities, in line with the regulatory framework of UNHCR which includes the UN Charter, UN Staff Regulations and Rules, UNHCR Policies and Administrative Instructions as well as relevant...
-
Statistics and Data Analysis Associate
5 days ago
Dhaka, Dhaka, Bangladesh United Nations High Commissioner for Refugees Full timeJob DescriptionDescription –>All UNHCR staff members are accountable to perform their duties as reflected in their job description. They do so within their delegated authorities, in line with the regulatory framework of UNHCR which includes the UN Charter, UN Staff Regulations and Rules, UNHCR Policies and Administrative Instructions as well as relevant...
-
Statistics and Data Analysis Associate
1 week ago
Dhaka, Dhaka, Bangladesh United Nations High Commissioner for Refugees Full timeJob DescriptionDescription –>All UNHCR staff members are accountable to perform their duties as reflected in their job description. They do so within their delegated authorities, in line with the regulatory framework of UNHCR which includes the UN Charter, UN Staff Regulations and Rules, UNHCR Policies and Administrative Instructions as well as relevant...
-
Junior/Data Scientist
4 weeks ago
Dhaka, Dhaka, Bangladesh Advanced Chemical Industries Limited (ACI) Full timeResponsibilities & ContextDefine and deliver metrics, reporting platforms, dashboards, and analytical models vital for tracking and managing the business.Identify business challenges and initiate process improvement.Collaborate with Marketing, Sales, MIS (IT), Operations, etc. to build scalable processes and metricsResponsible for carrying out complex...
-
Senior Research Analyst
1 week ago
Dhaka, Dhaka, Bangladesh WorldFish Full timeJob DescriptionDescription –>WorldFish is looking for a nationally recruited Senior Research Analyst (integrated multi-trophic aquaculture) to support the achievement of the work package [Integrated Multitrophic Aquaculture (IMTA): seawater Farming of Finfish-Bivalves-Seaweed] in Bangladesh. The primary purpose of this position is to support the work...
-
Senior Research Analyst
2 weeks ago
Dhaka, Dhaka, Bangladesh WorldFish Full timeJob DescriptionDescription –>WorldFish is looking for a nationally recruited Senior Research Analyst (integrated multi-trophic aquaculture) to support the achievement of the work package [Integrated Multitrophic Aquaculture (IMTA): seawater Farming of Finfish-Bivalves-Seaweed] in Bangladesh. The primary purpose of this position is to support the work...
-
Internship - ICT
7 days ago
Dhaka, Dhaka, Bangladesh Save the children Full timeResponsibilities & ContextWe are glad to announce an INTERNSHIP opportunity in ICT department for 1 year based in Dhaka. Only Female candidates are eligible to apply. Detailed information as mentioned below:Application Categories (you can apply in one category only)Web Application (Dot Net & Open Source - PHP) and Mobile Application Development- Requirements...
-
Software Specialist/Software Specialist
3 weeks ago
Dhaka, Dhaka, Bangladesh SSL Wireless Full timeResponsibilities & ContextWeb application development expertise in PHP, JavaScriptWork with frontend developers to build site templates, access and store data, and provide AJAX/REST endpoints.Knowledge of front-end framework like Angular, React, Vue etc will be plusWorking knowledge of Web Services (e.g., JSON, RPC, REST, XML, SOAP, etc.)Optimize websites...
-
Senior Research Officer
4 weeks ago
Dhaka, Dhaka, Bangladesh International Centre for Diarrhoeal Disease Research Full timeJob DescriptionDescription –>icddr,b is a Bangladesh-based international health research institute that strives to solve key public health problems through high-quality scientific research and innovation. icddrb as a values-based organization encourages women and people with disabilities.The Initiative for Climate Change and Health within the Health System...
-
Agricultural Research and Development Research
4 weeks ago
Dhaka, Dhaka, Bangladesh International Rice Research Institute Full timeJob DescriptionDescription –>This position will contribute to AMD's climate change research and development activities in the agrifood systems in Bangladesh, focusing on conducting studies on climate and environmental vulnerabilities, verification and validation of climate-smart maps, identification of climate-smart and alternative technology/intervention...
-
Budget Officer
2 weeks ago
Dhaka, Dhaka, Bangladesh United Nations Children's Fund Full timeJob DescriptionDescription –>Budget Officer is expected to provide effective and efficient budget management services to Bangladesh country office, exercise effective oversight support regarding the programme budget management and work closely with programme colleagues at both national and field offices in ensuring that funds are monitored, and grants are...
-
Deputy Manager
4 weeks ago
Dhaka, Dhaka, Bangladesh Anwar Group of Industries Full timeResponsibilities & ContextTo responsible for achieving sales target with proper planning and executionTo follow up properly to customer till execution of salesTo prepare weekly/monthly sales performance reportsTo maintain and update client databaseTo maintain relationships with clients by providing technical informationTo develop new clients and maintain...
-
Online Edexcel IGCSE ICT tutor
1 day ago
Dhaka, Dhaka, Bangladesh TeacherOn Full timeI need 2024 ICT (4IT1) Data files. If you can help with this, let's discuss further.Payment Method: Nagad or bKash onlyI am interested in hiring an online tutor specifically from Bangladesh.Level: IGCSEGender Preference: NoneMeeting Options: Available online - via Skype, etc.
-
Finance and Administrative Assistant
7 days ago
Dhaka, Dhaka, Bangladesh Food and Agriculture Organization Full timeJob DescriptionDescription –>The Food and Agriculture Organization is specialized agency of the United Nations that leads international efforts to defeat hunger. FAO's goal is to achieve food security for all and make sure that people have regular access to enough high-quality food to lead active, healthy lives. We believe that everyone can play a part in...
-
Finance and Administrative Assistant
5 days ago
Dhaka, Dhaka, Bangladesh Food and Agriculture Organization Full timeJob DescriptionDescription –>The Food and Agriculture Organization is specialized agency of the United Nations that leads international efforts to defeat hunger. FAO's goal is to achieve food security for all and make sure that people have regular access to enough high-quality food to lead active, healthy lives. We believe that everyone can play a part in...
-
Online Science
3 weeks ago
Dhaka, Dhaka, Bangladesh TeacherOn Full timeInter Final yearScienceI need a teacher from Bangladesh only.Level: IntermediateGender Preference: Preferably femaleMeeting options:Available online - via skype etc.At home - Student can meet at their place.
-
Manager - Sales (Flat/Apartment)
4 weeks ago
Dhaka, Dhaka, Bangladesh Anwar Group of Industries Full timeResponsibilities & ContextTo responsible for achieving sales target with proper planning and executionTo follow up properly to customer till execution of salesTo prepare weekly/monthly sales performance reportsTo maintain and update client databaseTo maintain relationships with clients by providing technical informationTo develop new clients and maintain...
-
MIS Officer
2 weeks ago
Dhaka, Dhaka, Bangladesh Advanced Chemical Industries Limited (ACI) Full timeResponsibilities & ContextManage central computing systems and their associated operating systems as per requirement of superior. Manage troubleshooting of central computing resources for performance optimization.Ensure all data connectivity systems are running properly.Monitor daily all running work station.Carry out all the responsibilities assigned by the...