SQL, or Structured Query Language, is a commonly used programming language for managing data in relational databases. A SQL Developer helps with the design, development and maintenance of databases. They ensure that the databases work correctly and efficiently and can also create testing procedures. With the help of a SQL Developer, clients are able to get an efficient system for managing their company data. By developing secure and reliable databases, businesses can maximize their potential and streamline all processes.

Here's some projects that our expert SQL Developers made real:

  • Improving query speed and accuracy on large datasets
  • Implementing views and stored procedures for quick retrieval of data
  • Designing database tables to store all types of data
  • Automating processes to reduce manual work while working with databases
  • Creating an efficient search function using complex SQL queries
  • Providing insights into data by creating analytical models

SQL is an invaluable tool for businesses today in managing their data efficiently. Our experienced SQL Developers help clients by developing a secure and reliable database that meets their needs. With the help of a SQL Developer, clients can ensure that their database systems work correctly and with maximum efficiency.

If you're looking for an expert SQL Developer to create efficient databases or enhance your existing systems, here at Freelancer.com you will find the perfect contractors for the task. Our wide network of talents has put together many successful SQL projects for satisfied customers around the world today. So if you're ready to take your business to the next level, post your project now on Freelancer.com and hire an expert SQL Developer to work with you on this journey!

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    NEED EXPERT WITH Oracle SQLData 6 дней(-я) left

    Hello ALL, I need help with an Oracle SQL data project. Specifically, I have a problem with stored procedures that I need assistance with. I am encountering an issue with how to represent a table as an input for a stored procedure. I therefore require expertise to help resolve how to call an stored procedure as input a table, and receive response from as a table too. I have the error: ‘’ Fail to construct descriptor: Invalid arguments" I am using Spring 2.7 Oracle 12 Java 17 I cannot use deprecate functions. I need help for the SQLData code review, the SP input as a table and the receipt of the info as a table too. This is the stored procedure: Create or replace type SCHEMA.ROUTING_KVP as OBJECT( KEYNAME varchar(1024), VAL varchar(1024) ); Create or replace type ...

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    SQL Query Optimization Expert Needed ASAP Skills: - Strong knowledge and expertise in SQL - Proficient in query optimization techniques - Advanced understanding of SQL database complexity Project Requirements: - Immediate assistance required for query optimization - Deadline: Within 24 hours Please only apply if you have the necessary skills and can deliver within the specified timeframe. This is an urgent project that requires an expert in SQL optimization.

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    SQL, TSQL (advanced questions/queries) 6 дней(-я) left

    I am looking for a freelancer who is experienced in SQL and TSQL to assist me with query optimization. The ideal candidate should have strong skills in database design and data analysis and expert knowledge in SQL, PSQL and TSQL This is a very short project which should take no more then few hours.

    $135 (Avg Bid)
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    Desarrollar proyectos en Power Apps con CRUD en SQL, preferiblemente conocimientos en Python

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    AWS developer 6 дней(-я) left

    We are looking for an experienced AWS programmer.

    $1 - $5 / hr
    $1 - $5 / hr
    0 заявок(-ки)
    Funnel de ventas 6 дней(-я) left

    Necesito crear un funnel de ventas, este consistirá de una página VSL, un lead magnet (calculadora financiera, que recibe 8 datos y hace 3 operaciones matemáticas sencillas que mande el resultado de diagnóstico por email con cuatro opciones) y una página para reservar un lugar en un webinar. Toda la información deberá guardarse en una base de datos en SQL Azure, CosmoDB o MariaDB, montada en Azure y puede ser escrita en PHP, Python, .NET, Node o Ruby. Favor de cotizar horas de esfuerzo y adjuntar cronograma propuesto.

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    Una app completa Back-Front 6 дней(-я) left

    Estamos buscando un desarrolador app, no nos importa el lenguaje, flutter, react native... El diseño principal esta ya en figma desarrollado por lo que la base en cuanto al diseño ya estaria creada. App social la cual dispondra de chats tanto como canales como telegram el cual habla unicamente el admin con la posibilidad de mandar mensajes especiales, y grupos los cuales puedan hablar todos los participantes. que sean canales de pagos y frees. -Login-SignUp - Pagina para buscar los canales, por grupos con mas personas dentro... - Pagina la cual salen los ultimos mensajes especiales/noticias -Pagina la cual habra cursos de pago Todo esta explicado por encima para una idea sobre la app.

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    I am looking for a skilled professional to help me set up SQL Standard on a new remote server and assist in transferring databases from an old server. Operating System: Windows - The remote server is running on a Windows operating system. Data Migration Assistance: - I require complete assistance in migrating the data from the old server to the new server. Database Size: - The databases that need to be transferred are more than 10GB in size. Ideal Skills and Experience: - Extensive experience in setting up SQL Standard on Windows operating systems. - Expertise in data migration and transferring large databases.

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    Google BigQuery / Data Studio Project 6 дней(-я) left

    I am looking for a someone with expertise with Google BigQuery and Data Studio. I need help importing some data into BigQuery and then using Data Studio or similar to help visualize the data. Message me and I can send over sample data to give you a better idea of what Im trying to do. Should be pretty easy for someone with good knowledge with these 2 tools. thanks

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    bar graphs and round graphs in vb.net 6 дней(-я) left

    I need someone with experience in bar graphs and round graphs in vb.net, to make me two graphs with some component that does the same but looks modern. the data all comes via SQL

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    I am looking for an experienced freelancer who can provide me with steps or scripts to migrate my small Oracle database (less than 100GB) to PostgreSQL using the Ora2pg tool. Requirements: - Familiarity with Oracle and PostgreSQL databases - Expertise in using the Ora2pg tool for migration - Ability to migrate custom processes or functions from Oracle to PostgreSQL Responsibilities: - Provide detailed steps or scripts for the Oracle to PostgreSQL migration process - Ensure all custom processes or functions in the Oracle database are successfully migrated - Assist in testing and validating the migrated PostgreSQL database Please note that I do not require assistance in testing and validating the migrated PostgreSQL database.

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    Bug Resolution 6 дней(-я) left

    I am looking for a developer to resolve several defects or enhancements. please refer attached document for details defect vb.net, microsoft sql server

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    Oracle Fusion security Expert 6 дней(-я) left

    Looking for Oracle Fusion Cloud Expert who can draft the Solution offering in Oracle Fusion Cloud related to all modules in Fusion as well as provide a real time use case study. Only experienced Fusion expert is required.

    $273 (Avg Bid)
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    Tableau hierarchy 6 дней(-я) left

    I am looking for a Tableau expert who can assist me with creating an organizational hierarchy. Specific requirements: - Experience in creating organizational hierarchies in Tableau - Ability to work with a detailed structure provided by me - Familiarity with data preparation and cleaning techniques in Tableau Additional details: - Although I don't have the data set ready at the moment, I will be able to provide it soon - The ideal candidate should have strong communication skills and be able to understand my requirements and preferences effectively.

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    I am looking for a PHP developer to work on a project that requires connectivity with an Oracle 11g database. I need the developer to be knowledgeable in implementing data manipulation using PHP (Insert, Update, Delete) and be proficient in writing SQL queries. The code will need to be compatible with PHP 5. If you have any other features or functions that you are especially experienced in doing, please let me know. My timeline and budget for this project is flexible and I look forward to your reply. Thank you!

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    PowerBi Jr Analyst (solo habla hispana) 6 дней(-я) left

    Somos una empresa pequeña de software y consultoría IT en busca de un profesional en PowerBI para trabajar en proyectos a largo plazo. Si eres apasionado por el análisis de datos y tienes una sólida experiencia comprobable en PowerBI, Requerimientos para esta posición: Experiencia comprobable en análisis y visualización de datos con PowerBI. Capacidad para trabajar de forma autónoma y en equipo. Conocimientos sólidos en SQL y Excel. DAX Studio deseable. Python deseable. Habilidad para comunicarse de manera clara y efectiva con el equipo y clientes. Conocimientos en estadística y modelado de datos. Nivel de inglés avanzado.

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    C#, SQL Developers with good communication 5 дней(-я) left

    Need 6 developers. Please bid with resumes and rate for 1 year contract. The standard job description for a software developer. The person need to do development and support work, and need to have experience in the Microsoft stack (C#, Sql, etc. - Entity Framework is a plus.) It is mostly backend development and 3rd party integration. In terms of the experience, I would say 4+ years for an intermediate and >6 years for senior developer.. C# and SQL Developers with good communication skills needed for new development project with a timeline of more than 6 months. Skills and Experience: - Strong knowledge of C# and SQL - Experience with database management systems - Good communication skills Project Details: - The project involves new development using C# and SQL. - The estimated timeli...

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    AI LLM Project 5 дней(-я) left

    Looking for full stack AI Engineers to work on AI LLM project. Backend in python with langchain as the base framework. Looking for front end and back end engineers.

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    I am struggling with filters synch with the heat map..for eg if I select any filter then heat map only shows data related to that heat map and rest all the days as blank.. whereas I want rest all days to be green

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    I have a problem with database on VS application 5 дней(-я) left

    Title: Database Connection Issue on VS Application Project Description: I am looking for a skilled developer who can help me resolve a database connection issue on my Visual Studio application. The specific issue I am experiencing is related to connection problems with my SQL Server database. Skills and Experience Required: - Strong knowledge and experience in working with SQL Server databases - Proficient in troubleshooting and resolving database connection issues - Familiarity with Visual Studio and C# programming language - Excellent problem-solving skills - Ability to work efficiently and effectively under tight deadlines Project Deliverables: - Identify and resolve the database connection issue on the Visual Studio application - Ensure smooth data retrieval and prevent any future d...

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    Power Bi Dashboard 5 дней(-я) left

    Project Description: Power Bi Dashboard Data Sources: - The project requires connecting to Excel files to create the Power BI dashboard. Visualizations: - The client is interested in having tables and charts as visualizations for the dashboard. Interactivity: - The client wants the dashboard to be interactive. Ideal Skills and Experience: - Proficiency in Power BI and data connection with Excel files. - Strong knowledge of creating tables and charts for visualizations. - Experience in designing interactive dashboards. Note: The project does not require connecting to SQL databases or Web APIs, and custom visuals or maps are not specified as requirements.

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    solve a sql queries 5 дней(-я) left

    Hi, I am looking for an experienced freelancer to help me solve SQL queries for my database management system. I am using MySQL and need assistance with simple data retrieval queries. If you have experience working with MySQL databases and writing data retrieval queries, I welcome your help. I am not looking for complex solutions - just basic SQL. Please get in touch if you think you have the skillset I am looking for. Thank you!

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    Database Sql & Frontend 5 дней(-я) left

    I am in the process of creating a new database and am looking for someone to help me. I need someone experienced with MongoDB who can create this database from the ground up. This will likely be a relatively small database, handling less than 1GB of data in total. The successful applicant must have a proven track record working with MongoDB databases and be willing to adhere to my deadlines and project specifications. If you think you are the right person for the job, I would love to hear from you. Please provide me with some evidence of your past work and any relevant qualifications, certifications or accreditations that you may have. I am excited to get started on this project and hope to find the perfect fit for my needs soon.

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    I am looking for a qualified freelancer to develop an Oracle Apex application with specific functionality related to user authentication and authorization. The application is intended for my customers and I need it to be completed within 1 month. The freelancer should have a deep understanding of Oracle Apex, as well as relevant experience in data entry and management, reporting and analytics, and user authentication and authorization. They should also be detail-oriented and able to consistently deliver results on time. The successful applicant will be expected to collaborate with me regularly on project development, and suggest solutions based on the requirements. They will also be responsible for troubleshooting any issue that may arise during the development process. If you think you...

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    Oracle Apex developer 5 дней(-я) left

    I'm looking for an experienced Oracle Apex developer to help with a project. The project requires expertise in Oracle Apex 23.1, and I have no specific requirements or goals in mind – I'm open to any suggestions or guidance that the freelancer can offer. The estimated timeline of the project is 1-3 months. If you have the necessary experience and are interested in this project, please apply.

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    data designer 5 дней(-я) left

    I am looking for a data designer who specializes in data analysis using SQL Server. The project involves analyzing a medium-sized dataset of 1000-10,000 records. Ideal Skills and Experience: - Strong expertise in SQL Server and data analysis - Proficiency in querying and manipulating data using SQL - Ability to identify trends, patterns, and insights from the dataset - Experience in generating reports and visualizations to present the findings - Understanding of data cleaning and validation techniques - Attention to detail and ability to work with large datasets - Excellent problem-solving and analytical skills If you have the necessary skills and experience in data analysis and SQL Server, please reach out to discuss the project further.

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    Notification Msgs on Whatsapp 5 дней(-я) left

    I am looking for a freelancer who can help me integrate WhatsApp for sending delivery notifications. Skills and experience required: - Strong knowledge of WhatsApp integration - Experience in setting up notification systems on WhatsApp - Familiarity with handling a daily volume of 1-10 notifications Please provide examples of similar projects you have completed in the past. we are a small logistics company,we have database in sql

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    Mac/Web App with Data Migration 4 дней(-я) left

    I have a new degree in Software Development. I have an idea for a word processing app. The app will be available on Web and Mac. The documents needs to be able to be saved on Web and be opened on Mac(and vice versa) This will require migration of data between the two systems. The app needs to be able to change font and spacing. The app needs to be able to let a user add images and outlines. [Removed by Admin] to see my computer and teach me. Once I understand the building blocks. The first meeting I will pay $5 for $5 minutes. This is your interview to see if you really know these environments. If you know how to do the work, I will pay you $30/hour and more if you are exceptional. This job is as needed, so don't bid with 7hours of work a week. I will record our zoom calls ...

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    sql project 4 дней(-я) left

    More details: What specific SQL task do you need help with? Query optimization What information should successful freelancers include in their application? This question was skipped How soon do you need your project completed? ASAP

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    ETL Informatica Powercenter Developer for Job support 4 дней(-я) left

    ETL Informatica Powercenter Developer for Job support Looking for job support on Informatica development. Required Skills, * Informatica (Power Center) * SQL (MS SQL Server management Studio) and Oracle. * Job Scheduler (UC4) or any other scheduler tool is also preferred.

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    Sql server data recovery 4 дней(-я) left

    I'm looking for an experienced database specialist who can provide support in recovering data from a SQL server. The size of the database is between 1GB - 10GB, and I need all data recovered. It's not clear at this point if I have a backup of the data, so I need someone to identify if one exists and use it as a starting point for the recovery process. Any additional workarounds or solutions that will help in the effort will be deeply appreciated.

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    Machine learning project 4 дней(-я) left

    Testing. This is a dummy project without any content. The purpose of this is to know the working of this site.

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    relational database to manage its operations 4 дней(-я) left

    Relational Database to Manage Customer Relationship Management Operations Ideal Skills and Experience: - Strong proficiency in MySQL database management system - Experience in designing and implementing customer relationship management systems - Knowledge of best practices for data storage and retrieval - Familiarity with inventory management and sales and order management processes Project Description: - I am looking for a skilled freelancer who can develop and implement a relational database to manage our customer relationship management operations. - The primary purpose of this database will be to store and analyze customer data, allowing us to effectively manage our relationships with our clients. - The freelancer should have a strong understanding of MySQL database management system ...

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    SQL Server replication troubleshoot -- 2 4 дней(-я) left

    I am looking for a SQL Server expert who can troubleshoot replication latency in my SQL Server 2014 or later. The specific issue I am experiencing is replication latency. I am using Transactional Replication for my database. Skills and Experience: - Strong knowledge of SQL Server 2014 or later - Expertise in troubleshooting replication issues - Proficient in Transactional Replication - Experience in optimizing replication performance - Familiarity with replication monitoring tools - Ability to analyze replication latency and implement necessary solutions

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    I am looking for a freelance developer to create a web application that will serve as an SMS Gateway and also support WhatsApp. The primary function of the application should be both sending and receiving messages on both platforms. Additionally, I require system integration with other systems. Ideal skills and experience for this project include: - Strong knowledge and experience in web development - Proficiency in programming languages such as C#, JavaScript, and HTML - Experience with SMS Gateway and Whatsapp API integration - Familiarity with system integration and API development - Ability to ensure the application is secure and scalable for multiple clients If you have the necessary skills and experience, please submit your proposal along with relevant examples of your previous w...

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    Tableau expert needed -- 3 4 дней(-я) left

    I am looking for a Tableau expert to assist me with data visualization tasks. I will provide the specific dataset to work with and I would like the visualized data to be presented using Tableau Public. Ideal skills and experience for this project include: - Strong proficiency in Tableau - Experience with data visualization and analysis - Ability to create engaging and informative dashboards in Tableau Please include examples of previous Tableau projects in your proposal.

    $6 - $63
    $6 - $63
    20 заявок(-ки)
    ServiceNow and SQLServer Engineer(Exp 7+Years) 4 дней(-я) left

    Role - Job Support Exp - 7+ years of exp in sql developer specially in serviceNow 5 days in a week Daily 2 hours on zoom call Remote support role You will have to help developer for completing the task Timings - 7 am IST (or evening IST) Payment - You will be paid for those hours while you will be working, You will be informed in advance if there is no work and for those hours you will not be paid. Role - ServiceNow Note - Please ping me only if you have experience in serviceNow

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    Looking For Oracle Expert ! 4 дней(-я) left

    Hi All, I want to you help with Oracle SQLDATA project More details via chat Thank You

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    spatial analysis 3 дней(-я) left

    I'm in need of a professional to conduct spatial analysis on my data using Geographic Information Systems (GIS), with a focus on spatial and Locational Analysis. I already have specific data that I'd like analyzed, so the job is to interpret and utilize existing data. The desired outcome of this project is to generate insights and results based on locational analysis. Experienced experts in GIS with familiarity in using and understanding location-based data will be preferred for this project.

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    Updating my exisiting property database 3 дней(-я) left

    I am looking for a skilled freelancer to help me update my existing property database. The project involves making specific changes to the property information, such as updating details and adding new properties. Additionally, there is a need to delete outdated properties based on specific criteria that I will provide. We are using spreadsheets Skills and experience required: - Strong knowledge and experience in working with property databases - Proficient in updating and managing large databases - Attention to detail to ensure accurate property information - Ability to understand and follow provided criteria for deleting outdated properties Note: The current database contains more than 500 properties.

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    I want to Esp32 change protocol http to ftp ! 3 дней(-я) left

    Hello All. I have an esp32 that transmits through a sim800 to a Sql, it is currently in http protocol and I need to change it to ftp, the file is the PHP in the server More details via chat Thank You

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    Create a Power BI dashboard from SQL database 3 дней(-я) left

    I am looking for a freelancer to create a Power BI dashboard from an SQL database. The purpose of the dashboard is for reporting and monitoring. We require a basic level of complexity with a few key metrics. I have specific requirements for visualizations and charts that need to be included. Skills and experience needed for this project: - Proficiency in Power BI - Strong SQL database knowledge - Ability to create visually appealing and effective data visualizations - Understanding of reporting and monitoring requirements If you have experience in creating Power BI dashboards and can meet these requirements, please submit your proposal. We are a small logistics company with key/flag points of the process stored in date format. we need power BI dashboards to be shared with our limite...

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    As a beginner in the world of pyspark, I am looking for an experienced developer to provide guidance as I work on my project. I have a specific project in my work that I am tackling and need assistance understanding the syntax and functions of pyspark to make sure I'm on the right track. I am looking for someone who can provide me with clear and concise instruction to help me with optimizing performance and scalability of my pyspark project.

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    Power Bi Reports Generation using SQL 3 дней(-я) left

    I am looking for a freelancer who can generate Power Bi reports using SQL. The ideal candidate should have experience in creating reports based on sales data from a SQL Server database. Specific requirements for the project include: - Creating reports that display sales data in the specified format - Utilizing SQL queries to extract the necessary data from the database - Designing visually appealing and easily readable reports Skills and experience required: - Proficiency in Power Bi and SQL - Strong knowledge of data visualization and report design - Experience working with SQL Server databases If you have the skills and experience required for this project, please submit your proposal.

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    Développeur qfull Stack 3 дней(-я) left

    Anyone available to support Java project (Senior full stack developer)? Needs to be in EST, should be 100% online for 8 hours. I will just login to laptop 8:00 am EST after that you will be responsible to stay online and complete the work.

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    I need help fixing a Microsoft ACE.OLEDB.12.0 provider registration error on my local machine setup. My version of Microsoft Office is Office 365 and I am not sure whether the error is occurring on a 32-bit or 64-bit system. The specific software or application that is triggering this error is Microsoft Access. I am looking for someone who can provide quick and efficient support to diagnose and resolve the issue. Ideal candidate should have experience with similar problems and be patient and easy to communicate with.

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    We have a SQL database containing information which is updated regularly, and needs certain information updated into client Access databases. Ideally a SQL job or web service etc. that can poll our SQL database looking for relevant data to be updated on the customers ends, then connect to the access DB and update the information in the appropriate fields at the customer end. We would also like for the service to have to authenticate with a DB user (same user on each DB). Very open to solution options based on your knowledge. After something quick and simple which will perform the above function reliably. Considerations: 1. Keep it simple, prefer not to have to install anything at client end. 2. Prefer polling at server end, and pushing to client DB 3. Prefer web protocols, keep it simpl...

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    I am looking for a skilled and experienced full stack developer to develop and maintain my website. Programming Languages: - React.js, Node.js, SQL, Also Familiar with AWS and Git. Experience Level: - Mid-level Requirements: - Develop and maintain the website using React and Node.js - Collaborate with the team to design and implement new features - Troubleshoot and debug issues - Optimize website performance - Ensure cross-platform compatibility - Stay up-to-date with emerging technologies Skills and Experience: - Proficiency in React and Node.js - Strong understanding of HTML, CSS, and JavaScript - Experience with database design and management - Knowledge of RESTful APIs - Familiarity with version control systems - Excellent problem-solving and communication skills - Ability to work...

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    Coding Challenge Creator for Technical Courses 2 дней(-я) left

    We are seeking a dedicated and innovative individual to join our team as a Coding Challenge Creator for our technical courses. In this role, you will be responsible for creating engaging and thoughtful coding challenges that will help our students hone their skills in SQL, Python, and Java. Knowledge and proficiency in SQL is a must. Knowledge of Java and Python is a bonus. Key Responsibilities: - Develop unique and engaging coding challenges for our technical courses - Ensure challenges align with course objectives and learning outcomes - Work closely with course instructors to tailor challenges to specific course content - Regularly update challenges to ensure they remain relevant and effective Key Requirements: - Proficiency in SQL is mandatory - Excellent writing skills - Knowledge ...

    $14 / hr (Avg Bid)
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    Power bi portfolio dashboard integrated with primavera p6 2 дней(-я) left

    I am looking for a skilled Power BI developer to create a portfolio dashboard that integrates with Primavera P6. Data Integration: - I want to include cost analysis data from Primavera P6 in the Power BI dashboard. - Real-time data integration is required for up-to-date cost analysis. Visualizations: - The Power BI dashboard should include bar graphs to visualize the cost analysis data. Ideal Skills and Experience: - Strong expertise in Power BI development and integration with external systems. - Proficiency in working with Primavera P6 data. - Experience in creating dynamic and visually appealing dashboards with bar graphs. - Ability to implement real-time data integration for accurate and timely updates. Please provide examples of previous Power BI projects and experience with Prim...

    $30 (Avg Bid)
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    11 заявок(-ки)

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