Connecting mysql php5 jobs

...scalable backend infrastructure that can handle high volumes of bookings while ensuring a smooth user experience. I need a skilled Core PHP Developer to build a custom web application with database management capabilities, using MySQL as the preferred database management system. The application should be well-structured and efficient with an emphasis on data handling. Key Requirements: - Extensive experience working with Core PHP. - Proven track record of developing dynamic, secure, and efficient web applications. - Strong understanding and experience with MySQL database management. - Ability to ensure the application is well-structured and follows best practices for data handling. - Strong problem-solving skills and the ability to work independently. ?️ Key Responsibi...

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.

Seeking a Drupal maestro who can seamlessly integrate Printful to my currently running Drupal platform. The goal is a complete functionality with product synchronization, order automation, and real-time shipping rates. As I already have a Printful account, you'll be tasked with connecting the existing account with the Drupal platform. The integration will play a crucial role in streamlining my business operations, so attention to detail, precision, and expertise in both Drupal and API integrations are paramount. Preferred skills: - Solid grasp of Drupal CMS - Proven experience in API integrations (preferably Printful) - Detail-oriented approach - Knowledgeable in eCommerce operations and logistics - Exceptional problem-solving abilities.

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' name, etc. • Take pictures of the subject company and its vicinity, as per Confirmis&rs...

I have an existing Laravel-based ecommerce application that requires a series of modifications and additions. Key Tasks: - **New Tables & Conditions**: I'm looking to add several new tables and conditions to the application. Skills & Experience: - **Laravel Proficiency**: I'm seeking a seasoned Laravel programmer who has extensive experience ...Proficiency**: I'm seeking a seasoned Laravel programmer who has extensive experience with ecommerce applications. The ideal candidate should be highly proficient in Laravel framework and comfortable creating new tables and conditions within the application. - **Database Management**: A solid grasp on database management is crucial to successfully add and integrate these new tables. Experience with MySQL or other r...

I'm looking ...skilled WordPress and IT professional to execute various tasks on my website. The scope of work includes: - Setting up user registration and login functionality. This feature should be available to any user who chooses to register. - Making specific edits on the website – this could involve changing the theme, customizing the layout, or adding new content. - Assisting with IT tasks such as connecting my Namecheap URL to my cyber panel. Your job will be to establish the initial setup, ensuring a seamless connection between both platforms. Ideal candidates should have substantial WordPress experience, specifically with user registration and website modification. Familiarity with Namecheap and cyber panel is a plus, as is a solid understanding of initial I...

I'm looking for an experienced PHP developer who is well-versed with MySQL to help me with editing the search module of my website. The primary focus of this project is on modifying the way images are retrieved then displayed in the search results. Key Requirements: - Modify the retrieval of images in the search results to use URLs for specific sizes as opposed to the current methodology of storing images locally and then displaying. - No specific enhancements are needed for the image thumbnails, just an adjustment in the retrieval and subsequent display methodology. Ideal Skills: - Proficiency in PHP and MySQL - Experience with implementing search modules in web development - Familiarity with retrieving and displaying images in various sizes - Strong problem-solving ...

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis...

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis...

HRM Modules: This application allows representing the relationships between employees, the groups they belong to, and the training they have attended. 1. "Employee": They are characterized by: name: The employee's last name. first_name: The employee's first name. date_of_birth: The employee's date of birth. position: The position held by the employee. establishment: The establishment where the employee works. hire_date: The date the employee was hired. contract_type: The type of contract. seniority: The seniority. 2. "Group": They are characterized by: group_name: The name of the group. group_selection_criteria: The selection criteria of the group. 3. "Training": Each training is characterized by: name: The name of the training. description: A...

-DATING and SOCIAL NETWORK WEBSITES , I'm looking for a highly skilled and React.js developer who can expertly handle complex application development. Your r... - React.js - GraphQL - - Team collaboration - Strong understanding of front-end development - You work 45 hours per week by sharing your screen during your shift - weekend available - You work on monthly basis incoms "no upfront" - You work on UTC time Please apply with your relevant experience and portfolio. (MIDDLE MAN OR AGENCY STAY AWAY) Your expertise will empower a community-connecting network that's rich in features and ready to scale. If you're eager to tackle this exciting challenge, I'd love to hear your strategy and see your portfolio showcasing similar projects. Let's build...

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' name, etc. • Take pictures of the subject company and its vicinity, as per Confirmis&...

Hi, Nee one simple PhP,MySQL app which will prompt/require for Document-URL: and extract all the short abbreviations inner in (....) from entire document(with PDF,...extensions). The report/result will like this table with 2 columns: sentence | terms-founded | string of terms | check-selection | button "do-it" Then I will select the terms by checking and then I will press the button "do-it" and the selected terms founded between (...) will be savet into MysQl Table. So for Document-URL: this is simple example of line from this report -sentence: "With the deployment of

1. Introduction: This requirement document outlines the necessary features and functionalities for developing a 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 ac...

We are seeking an experienced custom web developer to create a unique web application tailored to our specific needs. The ideal candidate will have expertise in the following areas: Recommended applications and Technology: HTML, CSS, JavaScript, React/Vue/Angular) Laravel, CodeIgniter, Node.js, Python, Ruby on Rails, PHP, or similar - Database management (MySQL, PostgreSQL, MongoDB, etc.) - API integration - Responsive design **Responsibilities:** - Develop and maintain the web application according to the project specifications. - Collaborate with our team to refine and improve features. - Ensure the application is secure, efficient, and scalable. **Requirements:** - Proven experience in custom web development. - Strong portfolio showcasing relevant projects. - Excellent proble...

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 fronten...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

In search of a dedicated salesperson with a strong background in securing successful B2C engagements. Your primary task is fostering and maintaining meaningful relationships with potential consumers via phone calls. The goal is to promote and sell an array of service-based offerings. Responsibilities: - Leverage communication skills for potent phone-based sale...potent phone-based sales - Transact with our diverse consumer base for service-oriented sales - Maintain excellent customer relations Ideal Candidate: - Proficient in telephone-based communication - Experience in B2C sales, specifically for services - Exceptional customer service and negotiation skills If your skill set matches the job description, don't hesitate to bid. Looking forward to connecting with potent...

...Function to an Azure MySQL database. The function is being used as a Web API, and I need it to be able to both read and write data to the MySQL database. Key Requirements: - Development: You will need to establish a secure, reliable connection between the Azure Function and the Azure MySQL database. - Data Handling: The API should be able to retrieve data from the database as well as input new data into it. - Security and Optimization: Ensure proper security measures are in place to protect the data, and optimize the API for performance. Skills and Experience: - Proficient in C#: You should have strong experience working with C# and Azure Functions. - Azure Services: A solid understanding of Azure services and how they interact. - MySQL Database: Previous e...

Hello, I need a reliable, fast, and affordable installation of the Stripe payment processor for my website, from someone who keeps their commitments. This person must have knowledge of HTML, PHP, and MySQL. Regards

Hi David, I can't connect VSC to the Hostinger VPS. I can provide you with a file describing what I did and the problems I found. This project is about providing me with the instructions to connect VSC to the VPS and also provide the instructions I should follow to be able to edit the CrewAI files (using the CrewAI that you installed), namely pyproject.toml. , , , etc. I also need to know how to create a "tools" folder and edit files to create tools.

...WordPress site on the chosen hosting platform. Ensure HTTPS is enabled for secure data transmission. Provide documentation and a brief training session on managing the site and handling common issues. Technical Requirements: Frontend: HTML, CSS, JavaScript (with jQuery or a framework like React/Vue if necessary). Backend: PHP, WordPress, Google Cloud Text-to-Speech API, FFMPEG. Database: MySQL or equivalent (if needed). Hosting: Recommendations for hosting solutions that support WordPress and required processing capabilities. Deliverables: Fully functional WordPress website with the described features. Custom WordPress plugin for handling audio generation and integration. Documentation for setup, maintenance, and troubleshooting. Brief training session for site ad...

...need an expert to pull data from my MySQL database, specifically from the Customers and Orders tables, and send it to a Slack channel in a unified message. The data includes text, numeric, and date entries. Key Requirements: - Integrate MySQL data with Slack: I need the freelancer to help me integrate the data entries from the specified tables with a Slack channel. - Collide Entries: The entries from the Customers and Orders tables need to be combined into a single, coherent message. - Include Specific Fields: The message should include specific fields from the MySQL tables. These fields include Customer Name, Order ID, Order Date, Customer Phone Number, Customer User ID, Product Details, and Product Quantity. Ideal Skills and Experience: - Proficient in MySQL...

ABSTRACT MODERN MEANINGFUL 3 simple but different logo idea drafts. Not finalized, sketch only. Blue, gold, black Eye and lightbulb as two spheres overlapping or connecting somehow meaningful, meeting each other

...developer with experience in creating automation tools. We're looking to build a sophisticated website and dashboard, which will be later integrated with API and MySQL. The final product should be a robust, blockchain-based automation platform. Key responsibilities include: - Building a website and dashboard from scratch - Implementing blockchain technology for automation - Ensuring seamless integration with API and MySQL The ideal freelancer should have: - Extensive experience in web development, particularly in creating automation tools - Proven track record in implementing blockchain technology - Strong understanding of API and MySQL integration - Ability to deliver high-quality work within a short timeframe This is an urgent project, and we need someone ...

I need a developer proficient in and a good understanding in API development. I have a parameter I would like to pass which is a string value to pull an entire user object with all of the properties in a database. this would be a string parameter passed into a Get request with a response of an entire record pulled from a MySQL database and using an Interface to extract the properties into a page. This is a very small project and should only take a few minutes of time.

I'm looking for a professional Flask and Python developer to help me implement a user management system for my website. The user management system should have Social Media login integration. Additionally, I would like the selected developer to set up a payment gateway and a MySQL database. Ideal Skills: - Proficient in Flask and Python - Experience in implementing user management systems with social media login integration - Proficient in setting up payment gateways - Proficient in working with MySQL databases

...Tailored Solutions: We create custom web applications that meet your specific business needs, enhancing productivity and operational efficiency. ● Versatile Applications: Our solutions range from customer portals to complex inventory management systems, each built to address unique business challenges. ● Technology Stack: Node.js, , Ruby on Rails, Django, Laravel, MongoDB, PostgreSQL, MySQL, AWS, Docker....

...talented full stack developer, specialized in Flutter, jQuery, MySQL, AWS, and Google Cloud Platform, to help me bring my vision to life. I plan to develop a premium content platform for the web. The platform will provide a seamless user experience yet restricts premium content behind pay walls. Key requirements: - Develop a web-based premium content platform using Flutter and jQuery - Implement a secure and reliable system for MySQL database management - Integrate an inbuilt payment gateway for user subscriptions - Utilize AWS and Google Cloud Platform to ensure the platform's scalability and performance Ideal candidates should have: - Extensive experience in full stack development - Proven expertise in Flutter, jQuery, MySQL, AWS, and Google Cloud Platform ...

I'm in need of skilled manufacturers to create top-notch stonewashed cotton bed sheets for single and double sized beds. Bed sheets will have a key difference where they have a zip connecting them together, unlike anything currently on the market. Applicants should have experience in textile manufacturing, specifically with the production of cotton bedding items. Knowledge in thread count specifications and bed sizing is a must. Expected deliverable is high-quality, durable, and comfortable bed sheets made of 400-500 thread count cotton.

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' name, etc. • Take pictures of the subject company and its vicinity, as per Confirmis&...

Project Description: I am seeking an experienced freelancer to develop a directory listing website, similar in design and functionality to the following template: The design will be provided by me. Requirements: 1. Technical Specifications: - Framework/Technology: Please suggest suitable technologies. - Database: MySQL, PostgreSQL, or another relational database. - Responsiveness: The design must be fully responsive and work flawlessly on all 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

I'm seeking a meticulous and experienced medical writer to develop a compelling research letter based on AI program called Regard connecting it to patient safety. Key Responsibilities: - Write within 600 words - Loop the patient safety with use of AI note writing and how does it help with patient safety Ideal Skills: - Proficient in medical report writing. If you have an in-depth knowledge of use of AI in medical field,I look forward for your bid.

I've been facing issues with a MySQL table that seems to be taking up too much space in my database, despite there being no data in it. The table is almost 2MB in size while it has no rows at all. The database was originally like 50kb a few weeks ago. Recently we made some minor changes, like adding index. Then it suddenly become so huge. Key points: - Table size issue: The MySQL table is bloated despite having no data, and it's causing performance problems. - Insertion operations: The table is mainly used for inserts, which are what I need it to be optimized for. The work needs to be done remotely using anydesk. If you know how to do it, it should be just a few min fix.

I need a professional to connect my website with CowPay payment gateway through API. Requirements: - Connecting the CowPay payment gateway via API to my existing WordPress site. - The integration should be seamless and secure, ensuring a smooth transaction process for customers. - It will be primarily used for processing product sales, so the system should be optimized for this purpose. - The necessary API credentials have already been provided from CowPay, so the main task is the integration itself. Ideal Skills and Experience: - Proficiency in WordPress and e-commerce website development. - Prior experience in integrating payment gateways using APIs. - Strong understanding of security protocols for online transactions. - Effective communication skills to collaborate and troub...

...as well as connecting them with service providers. Key Features: - User Registration and Login: Users should be able to create accounts and sign in securely. - Push Notifications: Implement push notifications to notify users about important updates. - In-App Purchases: Enable in-app purchases for premium features or services. - Realtime In-App Messaging: Implement a messaging feature that allows users to communicate with service providers. - Provide a path to payment Target Audience: My app is tailored for boat owners, particularly adult boat owners. It's crucial that the developer understands this demographic and can craft an intuitive user experience for them. Main Purpose: The primary goal of the app is to assist boat owners in managing their maintenance needs and c...

...developer who can build an automated document verification system to simplify the document management procedure in educational institutions. The system must include the following features: - Database Integration: Integrate with MySQL, our preferred database management system, to make document retrieval and management easier. - User Authentication: I want the system to authenticate users via Single Sign-On (SSO) using existing authentication platforms like Google and Facebook. This is to ensure a secure, seamless and user-friendly sign-in process. Proficiency in MySQL, SSO Integration, and system development is required. Prior experience in document management system creation will be preferable. The ideal candidate should understand the intricacies of data security and ...

My existing React Native application, which is supported by NodeJS and backed by a MYSQL database, needs immediate attention. Here's what needs to be done: User Interface Updates: The component related to photos in the application requires significant changes. I also need a feature that shows the GPS route to the specified delivery point. This functionality was not implemented in the initial version of the application. Additionally, changing screen configuration doesn't display corresponding states with their color (only changes upon updating the application). Functionality Improvements: On top of the UI changes, the app needs general functionality improvements to enhance user experience and the app's efficiency. Also, create a button for downloading PDF files; the ...

Website Designer , Php , E Commerce having knowledge of MySQL

I'm looking for someone to work with me on an automated crypto trading bot. It will use Tradingview alerts, (which uses Webhook URL) to ping a script on a server, which then uses an exchange API to execute crypto trades. I will integrate the script into MySQL using php to track the amount traded and set a e.g. a sell price for the crypto just purchased after the alert... I can do that... But I need help with the integration of alerts from Tradingview and the API code to the exchange.

I'm seeking an experienced video editor to craft a captivating storytelling-style wedding video that is less than 30 minutes long. Key requirements include: - Collating all the recorded moments from my wedding into a seamless video - Highlighting key aspects from the ceremony, reception, and couple shots - Producing a memorable narr...and highlights of the day. The ideal freelancer for this project has a knack for storytelling and a good eye for detail, and understand the nuances of wedding videography. Experience in short-form video editing and proficiency with appropriate editing software is essential. I'm striving for a product that will let anyone who watches it feel as if they were there at my wedding, so creativity in connecting all the different parts and moments ...

Project Overview: We are in need of a skilled backend developer to implement the necessary functions for our financial services website. The primary goal is to ensure smooth operation and functionality across various sections of the site. Project Details: Functionality Scope: Implement backend functions to support the frontend interface. Develop APIs ...discussed based on project scope. Timeline: Fastest to complete. Preferred Communication Channel: Freelancer platform messaging system. Additional Notes: Collaborate closely with frontend developers to ensure seamless integration. Prioritize security and data integrity in backend implementation. Skills Required: Node.js RESTful API Development Database Management (e.g., MongoDB, MySQL) Authentication and Authorization Systems

I'm seeking a skilled system administrator to replace my current MariaDB with MySQL 8.0 on a CentOS server. The ideal candidate will be able to: - Completely remove MariaDB ensuring no data loss - Install and configure MySQL 8.0, adhering to: * Default configuration * Custom storage engine Security is a key concern. Remote access to the MySQL installation must be restricted. This is crucial to maintain the integrity and security of the server and its data.

...an experienced AWS DevOps specialist to host my business management tool which consists of a React-based front-end, an ASP.NET API and a MySQL database on AWS, specifically using Elastic Compute Cloud (EC2). Key requirements: - Hosting: Set up and manage the hosting environment on AWS EC2, ensuring the site is stable and accessible. - Scalability: Implement strategies to accommodate low traffic, up to 100 users per day. - Security: Ensure the highest level of security and integrity of the data. Ideal candidates should have: - Proven experience in DevOps and cloud hosting, particularly with AWS EC2. - Background or familiarity with React, ASP.NET, and MySQL. - An understanding of best practices for hosting and optimizing web applications. This project is crucial for my b...

??? ?????: ????? ?????? ????????? (????-????, ??????) Salary: up to 4000$ USD/month The ideal candidate will have a passion for algorithmic trading and extensive experience with the NinjaTrader platform software. This is a fully remote position with a flexible schedule, but the candida...Experience with version control and continuous integration tools such as GitHub/GitLab • Knowledge of third-party libraries and APIs • Proficiency in building enterprise web solutions using the MERN stack • Strong proficiency in HTML, CSS, JavaScript, and JavaScript frameworks like Dart, React, and Node • Experience with server-side languages such as Python, PHP, and C# • Knowledge of databases such as MySQL, NoSQL, and GraphQL Ability to accurately forecast and communicate ...

I am in need of an experienced developer who can work on creating a custom Outlook calendar API. This API should have some specific functionalities and integrations that I need to make my workflow more efficient and effective. Key Project Requirements: - **Event Synchronization**: T...**Reminder Notification**: This API should also be capable of sending out reminder notifications for important events. Ideal Skills and Experience: - **Node.js**: As I prefer this platform for the development, experience with Node.js is a must. - **Outlook API Familiarity**: Prior experience with Outlook calendar API development is highly desirable. - **Integration Experience**: Experience in connecting APIs with Microsoft products, especially Microsoft Outlook and Microsoft Azure, would be an added ...

We have a website developed in PHP & MySQL database. We need to add news section in the home page. The same should be available to be edited from the Admin Section for the user to change contents in the News Section.

Confirmis () is a Singapore-based business information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis...

I'm currently having difficulties with my Windows VM network connection when I configure it to use the Internal network type in Hyper-V. Despite setting it up, my VM is not connecting to the internet and displaying a 'No Internet' error message. Key Points: - My host machine runs on Windows. - I'm using Hyper-V as my virtualization software. - The network type I'm trying to configure is Internal. Requirements: - Troubleshoot the current network settings of my Windows VM on Hyper-V. - Resolve the 'No Internet' error and ensure the internet connectivity. - Perform necessary configurations to establish a successful connection over an Internal network type. Ideal Skills and Experience: - Proficiency in Windows operating system and Hyper-V. - Strong ...

I'm in need of an IT professional who can not only assist me in integrating text generation GPTs into my current website but also aid in the development of an iOS mobile application that mirrors its functionality. - GPT Integration: Expertise in connecting and integrating text-generation GPTs is crucial. This will involve a thorough understanding of how GPTs function, and we can use an existing subscription model interface. - iOS App Development: I'm also looking for someone with a solid history in iOS app development to replicate my website's functionality in mobile application form. In conclusion, the ideal candidate will have deep experience in iOS app development and the use of existing subscription model interfaces and GPT integration. They will be adept in ...

I'm in need of an IT professional who can not only assist me in integrating text generation GPTs into my current website but also aid in the development of an iOS mobile application that mirrors its functionality. - GPT Integration: Expertise in connecting and integrating text-generation GPTs is crucial. This will involve a thorough understanding of how GPTs function, and we can use an existing subscription model interface. - iOS App Development: I'm also looking for someone with a solid history in iOS app development to replicate my website's functionality in mobile application form. In conclusion, the ideal candidate will have deep experience in iOS app development and the use of existing subscription model interfaces and GPT integration. They will be adept in ...