Free application sql server backenddela

I will provide you with example designs, and you can choose the admin panel design yourself. You will create a UI inspired by these designs using React, , or Vue.js. For the backend, you can use Node.js or Django—it's up to you. Finally, you will deploy from my Digital Ocean server, and we will test it. All these projects are open-source, requiring only design changes, integrations, and minor developments. If you create chatbots, please respond and read carefully. It must be deployed within 1 months and the price is fixed. Price doesn't change, and neither does deadline to Before making an offer, I want you to install and try the chatbot and perplexica! :)

I have a .bin file, i can interpreat the file using a desktop software to get software number and software upgrade number from the file. file exist these info: SW: 2769022101 SW upg.: 2769033803 can you interpreat the bin file and retrive those data from the file. is it possible by php ...can interpreat the file using a desktop software to get software number and software upgrade number from the file. file exist these info: SW: 2769022101 SW upg.: 2769033803 can you interpreat the bin file and retrive those data from the file. is it possible by php ? if not then if you use any other language then will you able to give api in json format so that i will send you file from php application and you will return json response. My budget: 500$ time: 3 days let me know if you can d...

Project Title: Continious Speech Conversation Function Description: Simply replicate this on the frontend Our app is curretnly using push to talk function where as the backend is fully functional.

... The role may also involve programming. Key points: - Coaching: I need 1/1 coaching via Teams on Data Analysis & Data Visualization within Azure Analytics - Programming: If the opportunity arises, the candidate could get involved in programming using SQL - Proficiency: I consider myself at an Intermediate level with Azure Analytics Ideal Skills and Experience: - Proficient in Azure Analytics: You should have a strong understanding of Azure Analytics, specifically in Data Analysis and Data Visualization - SQL Programming: Experience with SQL is a must as you may be involved in programming for this project - Teaching or Coaching Experience: Prior experience in teaching or coaching Azure Analytics would be advantageous - Strong Communication: The ability to clear...

Hi, I need a VPN application with V2Ray protocol. It should support VMESS and VLESS methods. The project can be developed in Swift or Objective-C or Flutter. UI Is attached to the project. Api is ready and all information and payloads related with api will provided by me. Main features: * User will connect to server using an activation code (Like: 23wsfio3592 (include digit and char)) * User can see the remain days and traffic (Like: 25 Days left, 55 GB remaining) * User can change the server to connect to different locations (Simple combo box to select server) * Server list can show the online percentage (Api will return percentage of total traffic on server) * Api will provided best server to connect (Auto connect) that w...

A business-centric, data-oriented, and analytical mindset. Comprehensive knowledge of data science concepts and disciplines. Knowledge of enterprise information management processes and methodologies. Skills in database design, data security, and data lifecycle ...considerations. . Combinations of experience and education will be considered on a case-by-case basis. Experience in data warehousing and governance. Practical experience in enabling data usability, availability, and efficiency. Experience in data management, quality, metadata management, and modeling. Knowledge of database systems: MS SQL Server, Oracle, or another commercial RDBMS required, Snowflake, or other non-relational database desired. Knowledge of SQL. Experience with scripting languages, especially...

Das Projekt basiert auf der Interaktion eines Benutzers mit einem System, das dynamisch mit Inhalten und Daten von außen aus einem Backend gespeist wird. Dies ist eine kurze Beschreibung, was das System können soll und wie die Interaktion des Systems mit dem Benutzer aussehen wird: Der Kunde wird vor einem großen Monitor sitzen oder stehen. Auf diesem Monitor befindet sich ein 3D-Avatar, der in einem 3D-modellierten Raum steht. Während der Interaktion wird der Avatar verschiedene Dinge tun, zum Beispiel: Animationen: Der Avatar wird nicken, einen Ruhezustand einnehmen, wenn er nicht mit dem Benutzer interagiert oder nicht spricht, winken, die Arme in verschiedene Positionen bewegen usw... Sprechen: Es wird Textzeilen geben, die immer die gleichen sind, egal...

...displayed as a profile icon next to their name on the screens - A base design with each lesson (math, science, reading, history), and all the data is linked via Chatgpt (GPT) backend process with an API - Detailed customizable report generation process Ideal Skills and Experience: - Proven experience in UI/UX design, particularly with educational platforms - Strong familiarity with data visualization tools and techniques - Ability to create user-friendly and visually appealing design - Knowledge of integrating graphical representations, such as bar graphs, with user data - Experience in working with APIs and chatbot backend processes - Previous work with customizable report generation features is a plus This project requires a designer who can combine functional...

I'm looking for a frontend developer with expertise in React and Vercel, who can also work on blockchain projects, particularly in Solana. The project is a game website targeting cryptocurrency enthusiasts. The backend is already developed using Strapi. Your main task would be to make the game functional on the frontend. Key Requirements: - Solid experience in frontend development with React and Vercel - Previous work on blockchain projects, specifically in Solana - Understanding of cryptocurrency and blockchain technology - Familiarity with developing game websites - Can work with ports and making show real-time updates to game as it happens (since it is multiplayer) Key Tasks: - Integrating login with wallet - Displaying previous games - Ensuring a seamless user experience ...

...skilled freelancer to help me develop a web application. The project is a web based Pathalogy lab appointment booking system. In terms of the project's key functionalities, I'd like the web application to include: - User login and registration: The application should allow users to create accounts and log in. - Database integration: It is crucial for the system to store and retrieve data efficiently. - Responsive design: The application should be user-friendly and adjust well to different device screen sizes. Moreover, the application should have (CORE FEATURES OF WEBSITE):- - User Profile Dashboard: It should provide a personalized experience for users and allow them to manage their account details. - Smart Report Generation: The appli...

I'm in need of a skilled developer who is experienced with inventory management systems, report production, analytics, user access control, and Windows-based applications. This job involves maintenance of a warranty return tracking software, with specific attention to: - Inventory ...a plus. The overriding purpose of this software is to track and manage warranty returns effectively. Ideally, you should have previous experience in software creation and maintenance for tracking and managing products. The purpose of this project would be Bug fixing and improvement of the software tool already existing. Required: Experience with ER Models architecture Experience with MS SQL server 2017 express as DBMS Experience with Python 3.8.3 and Tkinter GUI toolkit Experience wi...

I am looking for a cybersecurity expert to conduct a thorough penetration test on my custom-built web application. The primary goal of this testing is to ensure my application is fully compliant with the regulations set by the Saudi Cyber Security Authorities. Key requirements for the project: - Conduct a comprehensive penetration testing on my web application. - Identify and exploit vulnerabilities in the current setup. - Suggest and implement measures to address any identified issues. - Ensure the application is fully compliant with the regulations set by the Saudi Cyber Security Authorities. Ideal Freelancer: - Proven track record of successful penetration testing on custom-built web applications. - Extensive experience working with regulatory standards, id...

Hi, I am looking for the top developer who can develop a auction site with features and customize other necessary features for the frontend & backend. Need to have good sense of UI designing. Requires Live Streaming integration Reference site

We are looking for a web designer who has minimum 3 years of experience in Full Stack Development. Tech for backend can be python/node.js and for frontend react.js. We have the UI for what we want to build, we need backend and frontend to be developed for the same. Our website is a marketplace, where publishers can register and add their offerings and advertiser can purchase it and place orders, admin panel UI is also available. You should know how to follow structured approach and keeping scalability in mind.

So i want rewrite a whole my website demo (laravel) to be backend = node.js framework frontend = react.js framework website = << topup gaming store this site have 5 payment gateway (linqu, tripay, ipaymu, duitku, tokopay) i want add 1 more payment gateway (xendit) this site have 3 api to product vendor and i want add 1 more api and last one have 1 api to unofficial whatsapp gateway Please give me your proposal about the cost and time for finisih this job. After this task, i want make an application by flutter but maybe later.

...recruitment website. The website aims to serve as a platform connecting job seekers with employers, facilitating the job search and recruitment process. 2. Scope: The recruitment website will provide a user-friendly interface for job seekers and employers to register, search, and manage job postings and applications. It will include job search, resume upload, employer profile creation, job posting, application management, and communication tools. 3. Functional Requirements: 3.1 User Registration and Authentication: • Users (job seekers and employers) should be able to register on the platform. • Authentication mechanisms should be implemented to ensure secure access to user accounts. 3.2 Job Seeker Features: • Job seekers should be able to create and manage their ...

More details: What platform(s) do you want the mobile application to be compatible with? Both What main functionality should the application have? It is for disabled people transportation and dining in restaurants What specific features should the application have for disabled people transportation? Wheelchair accessibility information, GPS tracking for disabled-friendly transportation, Communication with drivers and reserving and dining in restaurants friendly fir disabled people

...to leverage real-time crop images and AI to enhance crop monitoring, ultimately increasing crop yield and reducing water usage. Key requirements and deliverables include: - Building an intuitive Web UI that can analyze and display real-time crop images - Implementing machine learning algorithms using Python to interpret and predict the crop health and water requirements - Designing a robust backend system that can process and store large volumes of image data The ideal freelancer for this project should have: - Proficiency in Python programming - Experience in developing machine learning algorithms - Strong background in image processing and analysis - Prior experience in building web applications If you are excited about the possibilities of precision farming and have the r...

I already have a Java project that takes two photos then I can crop a piece of photo and place it above the other picture than I press "merge" button so the two pictures will merge. -What do I need is this: Instead of selecting and cropping the photos ...it above the other picture than I press "merge" button so the two pictures will merge. -What do I need is this: Instead of selecting and cropping the photos from Java, I want to do that from Flutter, then I send the necessary data to Java EE to merge it and send the merged photo back to Flutter. Key Skills: - Proficiency in Java EE - Strong understanding of Flutter - Proven experience with backend and frontend development A video shows the Java project:

I'm in need of a professional developer to handle the architecture implementation of an IOT server. Key Responsibilities: - Connecting sensors and GPS based Telematics devices to the server. - Handling data collection and storage. - Managing device commands. - Setting up real-time monitoring and alerts. Your expertise in setting up a NoSQL database is essential for this project. I'm looking for someone who can not only execute this task but also provide valuable insights and inputs to enhance the overall performance of the server.

I'm currently working on a portfolio website using and I'm seeking a skilled frontend developer to help me address some issues. The website frontend is built on Next.js. The project page data is connected to Strapi.io. Can add you to git repo. URL - Strapi backend url- Issues to be fixed: 1. Delay in page routing (homepage to about page etc) 2. Strapi data is not showing on projects page 3. Configure Google Recaptcha & on contact page- the code is there, you need to only configure Would be great if you can fix it quick. Kindly only apply if you are experienced with the technology.

Current project is built on Laravel for both front and backend. Need to build React frontend to replace Laravel frontend side. All the pages inside current pages should be moved to React with new template UI and all same functionalities. Main Laravel frontend back end Login this saas/superadmin version (include All modules) USE THIS Admin TEMPLATE FOR Frontend Current system making this stacks - Laravel, MySQL, VueJS, JQuery & Bootstrap, DOCUMENTATION API DOC

I'm in urgent need of an AWS expert to deploy my entire SaaS application. Key requirements: - Deployment of the entire SaaS application, utilizing key AWS services such as EC2 instances, S3 storage, and Lambda functions. Ideal Skills and Experience: - Proficiency in AWS services and deployment strategies. - Experience with SaaS application deployment. - Ability to work under tight deadlines.

As the project demands, I'm looking to build a student academic project Transport Mana...should receive relevant notifications such as schedule changes and general announcements. Incorporate the following features: - Include the option for both student and admin login. - The app should be user-friendly and intuitive. - It should be visually appealing, with a focus on smooth, efficient navigation. Ideal skills include: - Proficiency in Android app development. - Experience with backend development and database management. - Attention to UI/UX design. - Strong communication skills to ensure the app meets the needs of both administrators and students. The successful developer will be able to provide a robust, reliable app with a focus on the efficient management of college ...

I'm looking for an experienced developer to create a dynamic property search portal with Andriod and IOS mobile application / Apps. Website similar to property portal. Using laravel flexhome to customize IOS and Android application will be associated with the website. The project entails creating a seamless user experience, allowing individuals to search for real estate properties across different sectors - residential, commercial, and industrial. Below are some key requirements: - **Advanced Search Filters:** The portal should offer users advanced search filters, facilitating precise property searches. This may involve filters based on price range, location, property type, and more. - **Property Listings:** It's important for the site to have a large datab...

I am looking for a skilled writer to create an ebook from the material I provide. The requirements are as follows: - Content Rewriting: You will need to rephrase and reword the provided content to ensure it is original and does not appear to be copied...into a coherent and logical structure, including chapters and sections as appropriate. - Professional Formatting: The final product should be formatted into a professional-looking ebook, in the format of my choice (PDF etc.). - Collaborative Process: I will review drafts and provide feedback until the final product meets my satisfaction. Please ensure the final ebook is polished, engaging, and free from plagiarism. If you have experience in ebook creation and are able to deliver high-quality, original content, I would love to work...

I'm looking for a skilled developer to create a chatbot specifically for our website. The primary function of the chatbot will be to assist customers with their queries. It should be able to: - Provide prompt and accurate responses to common inquiries - Direct customers to relevant sections of the website - Transfer more complex questions to a human customer support agent ...requirements include: - Proficiency in creating chatbots for websites - Prior experience in designing chatbots for customer support purposes - Strong understanding of user experience and customer service principles The chatbot doesn't need to communicate in multiple languages. It should, however, be designed with scalability and future updates in mind. A seamless integration with our website's backe...

...audio file. Scope of Work: Setup and Configuration: Install and configure WordPress on a suitable hosting platform. Ensure the environment is secure and optimized for performance. Frontend Development: Create a user-friendly form for parents to input their child’s name and provide consent. Ensure the form is responsive and works seamlessly across different devices and browsers. Backend Development: Develop a custom WordPress plugin to handle form submissions, generate TTS audio, and merge it with the pre-recorded story. Implement Google Cloud Text-to-Speech API for generating the child’s name in audio format. Use FFMPEG or similar tools to merge the TTS audio with the pre-recorded story. Integration and Testing: Ensure the TTS audio seamlessly...

...ReactJS developer who can handle a variety of tasks. This project will involve Front-end development, UI/UX design, and API integration. Key Responsibilities: - Front-end Development: You will be responsible for creating the user-facing features of our web application. - UI/UX Design: I have a Figma design file which you will need to convert into Reactjs components. This means you should have a good eye for design and be able to translate it accurately into the final product. - API Integration: You will also need to work with our backend team to connect the front end to our APIs. Ideal Skills and Experience: - Strong experience with ReactJS and front-end development. - Previous work on UI/UX design is essential. - Experience with API integration is a plus. - Proficiency...

I need an adept SQL developer proficient in crafting SQL queries for various tables within our database. The task entails generating four queries, each encompassing approximately 20 conditions that must be met. Utilizing ChatGPT, could you assist in devising these queries?

I'm in need of an experienced SQL Server data warehouse designer to help with a project of integrating and consolidating data from different sources. Key requirements: - Expertise in SQL Server: You should be able to design, implement and optimize data warehouse solutions on SQL Server. Understanding data warehouse design principles is essential. - Data Integration: You'll need to work with some of our developers / power users to source data and establish automated integration; experience with integrating relational databases and APIs from web services is crucial. - Data Consolidation: You should be able to create a cohesive, consolidated dataset from these different sources applying appropriate design principles. - Medium-sized project...

As someone who cares about the safety and integrity of my software, I am currently in search of a skilled ethical hacker. Your task would primarily involve: - Performing network testing on our Android mobile application - Executing robust vulnerability assessments to identify potential weaknesses - Conducting comprehensive web application tests to ensure overall security Ideally, you would have an extensive background in ethical hacking and previous experience with Android mobile applications. It's important that you are familiar with contemporary network infrastructure and can proactively target potential threats. Your task will fundamentally influence the security of our app and its users, so thorough diligence and a keen eye for detail are critical. Please only app...

I'm looking for a skilled web developer to create an e-commerce website for my business. The site will host a substantial inventory of around 1000 to 1500 products spread across 10 different categories. The key functionalities and requirements are: - **Product Management**: I'll need the capability to bulk upload products through a spreadsheet. This will b...crucial aspect of the site as it will be the primary method through which customers will be transacting. The ideal candidate should have proven experience in building e-commerce websites with extensive product catalogs and automated product management systems. A strong understanding of handling payment gateways is also a must. Your suggestions for optimizing the site for smooth user experience and backend management ...

I need a professional website that aptly portrays my investment advisory services and showcases my portfolio. The website s...relating to finance or investments will have an advantage. - An investment portfolio section: The ideal freelancer should demonstrate an ability to elegantly display financial data in an accessible manner. - A contact form: Allow visitors to submit inquiries directly through the site. - An investment calculator: This needs to be user-friendly and visually appealing, requiring both frontend and backend capabilities. Ideal skills and experience: - Proficient in front-end and back-end development. - Demonstrable experience with finance or investment-related projects. - Ability to create a visually pleasing, user-friendly interface. - Exceptional attention ...

Dynamic Website With Backend for 3 pages Products, Brands, Solutions. Total site of 5 pages :- Home Products, Brands, Solutions, About Us, Contact Us page. No Ecommerce Only Lead Generation With Whatsapp integration and contact form integration.

...is generating errors thus preventing development. SOLUTION: Create a replica of RDS production server (to be called "dev") on AWS, that can be used for development on local environment and for staging testing later on. CONTRACTORS ANTICIPATED TASKS (high level) 1. Take backup of production database on AWS 2. Create new RDS instance (server) using the backup and restore the backup. 3. Configure and verify the network settings to make connections over internet. 4. Test connection of new dev database with web application on local environment. DELIVERABLES 1. Demo showing the website on local environment working with new "dev" database. 2. Document of how to integrate database with web application on development environment and fix any pot...

I'm in need of a skilled Java developer to create a new web application for my established business. If you're experienced in Java and have a solid track record of building web applications, I'd love to hear from you. Key requirements and responsibilities: - Develop a robust, user-friendly web application from scratch. - Ensure the application is scalable and secure. The ideal candidate should have: - Proven experience in Java development. - Strong understanding of web application development principles. - Ability to work independently and meet deadlines. This is a great opportunity for a Java developer to showcase their skills and contribute to a growing business.

I'm looking to create an all-in-one casino app that offers real money gaming to users in India. Here are more details about the requirements: - casino Android App with different real money games for India. (I have already found a few apps that are very similar as example code. Would like to have the most popular games in India and make it very simple and quick) - node.js backend with DB and payment. Configure and test that it works. If you have worked on similar projects and believe that you can help me, place your offer and I will get back to you for a chat. Thank you for the attention! :)

Note: Budget Fix 2000INR and time line 5 Day's I have a project currently in Codeigniter 3, and I'd like it converted to Laravel 10. This pro...will require thorough understanding of both frameworks, and it's crucial that all existing features and functionalities are precisely replicated in the new version. While I don't have specific features to prioritize, I will identify specific elements as the project progresses. Skills and experience required: - Profound knowledge in Codeigniter 3 and Laravel 10 - Expertise in PHP development and SQL databases - Proven experience in similar conversion projects Note: The finalized budget for this project is 2000INR. Please only bid if you can work within this budget. The timeline for project completion can be discussed d...

I am seeking a skilled React developer with expertise in frontend development and user interface/user experience design. I need to create a web application that provides a responsive, engaging experience for young adults. Your key responsibilities in this role would include: - Creating a frontend for the web application that is interactive and user-friendly. - Developing a UI/UX design that is visually appealing to young adults and promotes ease of use. Successful freelancers must have prior experience in these areas. Please include samples of the responsive web applications you have developed that cater specifically to young adults, along with an explanation of how the frontend and UI/UX design work you performed contributed to the application's overall success.

I'm looking for a UI designer to develop a clean and minimalist interface for a stock taking application. This UI will be used primarily by our Warehouse staff. Key components of the project include: - UI Design: The primary focus of this project is the design of the user interface. It should be user-friendly, intuitive, and minimalist in style. - Backend Development: The system will be powered by Microsoft Access. The backend should support: - Inventory Tracking: The system should be able to record and update our inventory. - Cost Analysis: The backend should be able to calculate the cost of our stock. - Report Generation: The system should be able to generate detailed reports based on the data entered. The ideal freelancer for this project should...

The website is built on a custom CMS platform. I need the following customizations: ...of how the current mechanism works, and the ability to make the necessary alterations whilst ensuring the overall functionality of the site is maintained. Instead of Following or Subscribing to unlock content, content will be unlocked after completion of affiliate offers. This includes backend modification to add affiliate offer links based on country of visitor, and integration with the affiliate network through API and postback scripts so affiliate statistics and earnings can be tracked from the backend. - Custom Integrations: I also require the integration of a new service into the website. This will require you to have experience with API integration and be able to work smoothly with ...

I'm in urgent need of a customized typing test to use in a job application process. Key requirements: - The test should last about 2 minutes. - The content should be relevant to general office tasks (word processing, data entry, etc). - I need this completed as soon as possible. Required skills: - Experience in test creation, particularly typing tests. - Understanding of job application processes and expectations. - Ability to work quickly and efficiently. Please let me know your approach to creating such a test and your availability. I'm looking forward to seeing your proposals.

I require a proficient JavaScript developer to create a unique, data-intense application. The main functionalities of the application should focus on real-time updates and data visualization. Key Responsibilities: - Development and implementation of real-time updates feature - Design and creation of a user-friendly data visualization system Required Skills and Experiences: - Extensive experience in JavaScript - Proven track record of creating applications with real-time updates - Experience in data visualization, a bonus if able to demonstrate prior work in this area. This project therefore requires someone who is knowledgeable in current JavaScript trends and has innovated within the realms of real-time updates and data visualization.

This should be simple for an experienced dev. Need portfolio of flutter dev to apply. Existing code base in place. I am currently in search of a profic...layout needs some reorganization. It may involve adding/removing sections based on our requirements. The positioning of various elements within the interface also needs tweaking. This is not just about modification; the potential candidate needs to evaluate the backend code to ensure all parts are in sync and working smoothly. Ideal Skills: - Proficiency in Flutter development - Solid background in UI design - Confident in handling color schemes and theme alteration - High-level problem-solving capacity to correct possible backend issues. Experience in a similar job and a portfolio showcasing previous work will be a s...

I need a proficient Java developer who can work effectively using Agile software development methodologies. You will primarily focus on the backend part of a software development project. Familiarity and experience with Spring Boot and Java EE are crucial. • Main task: Backend software development • Methodology: Agile • Key technologies: Spring Boot, Java EE Previous experience in similar software development projects and a strong comprehension of Agile methodologies will be the key to success. You are expected to hit the ground running, so prior hands-on experience with Spring Boot and Java EE is essential. Your strong knowledge in these technologies will guarantee the swift and efficient progression of this project.

I'm in need of a seasoned IT professional who can set up a Windows-based VPN server for my company. The primary purpose of this server is to allow our employees to access the company's resources securely from remote locations, which is currently a pressing need for us. Key Requirements: - Configuration of a VPN server on Windows OS - Setting up a secure connection for remote employees - Allowing simultaneous connection for a small user base (1-10 users) Ideal Skills and Experience: - Proficiency in Windows OS - Hands-on experience with VPN server configuration - Knowledge of network security best practices - Prior experience with remote access solutions Your expertise will play a crucial role in enhancing the security and efficiency of our remote w...

I seek guidance from an experienced ecommerce consultant to establish my first online store. Your expertise is desired to direct me through each step of setting up the storefront, from selecting a suitable platform to designing an aesthetically pleasing and fully functional website. Your skills are needed to configure the backend and optimize the front end experience for customers. It is also important to me that the site is built with search engine optimization top of mind. Proper implementation of SEO best practices during the development phase, such as appropriate metadata, hyperlinks and responsive design, will help ensure our products are easily discoverable online from launch. User experience must be smooth across all devices. Your guidance on pricing, payment options and inve...

...devices (desktop, tablet, smartphone). - SEO: It must be possible to optimize each individual listing for SEO, as well as the overall website. - Security: Implementation of security measures to protect user data. - Performance: The website must load quickly and be highly performant. - Import Functionality: Ability to import an Excel file so that entries are automatically created in the backend. 2. Design and User Interface: - Pixel-Perfect: The highest priority is given to a pixel-perfect implementation of the provided design. - Favorite Lists: Users should be able to create and rename multiple favorite lists. 3. Project Management: - Timeline: Please provide an estimated timeline for the completion of the project. - Communication: Regular updates and me...

...high-complexity T-SQL stored procedure used for data analysis that I need translated into PySpark code. The procedure involves advanced SQL operations, temporary tables, and dynamic SQL. It currently handles over 10GB of data. - Skills Required: - Strong understanding and experience in PySpark and T-SQL languages - Proficiency in transforming high complexity SQL scripts to PySpark - Experience with large volume data processing - Job Scope: - Understand the functionality of the existing T-SQL stored procedure - Rewrite the procedure to return the same results using PySpark - Test the new script with the provided data set The successful freelancer will assure that the new PySpark script can handle a large volume of data and maintai...