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!

De 356,657 opiniones, los clientes califican nuestro SQL Developers 4.87 de un total de 5 estrellas.
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    51 trabajados encontrados, precios en USD

    Se necesita migrar un formulario 6i a 12c que realiza impresión a matricial y considera el tamaño de hoja

    $165 (Avg Bid)
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    Hola! Buscamos una empresa o freelance que sea experta en aplicaciones empresariales de Azure que trabaje a nivel de consultoría por horas o proyecto cerrado. Queremos desarrollar una aplicación empresarial (que no pase por el registro en la galería) que implemente un inicio de sesión basado en SAML en la que puedan autenticarse tanto usuarios de nuestro AD como de otras organizaciones con AD de Azure. La idea es que nuestros clientes con AD de Azure puedan registrar nuestra aplicación a través de un fichero de metadatos de federación y que sus empleados puedan realizar el login en nuestro sistema a través de la estructura de usuarios y grupos de su propio Active Directory. ¡Nos urge! Gracias!!

    $38 / hr (Avg Bid)
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    Un cliente quiere montarse un sistema de BI para analizar a sus usuarios. Tiene unos 500K clientes con unas 10K ventas mensuales. El tamaño como ves es mediano/pequeño. El tema esta en que hay que montar un ETL para sacar los datos de distintas fuentes MySQL para el email, Navision, SQL, para las ventas off-line y Magento, MySQL, para las on-line. Con todo esto hay que hacer un profiling de los usuarios y montar un dashboard para dirección. Lo suyo es empezar con algo simple, extrayendo datos de las distintas fuentes y luego hacerlo en semi-tiempo-real. Como herramienta de explotación de BI tienen un Power BI muy simple que coge los datos de Navision. Lo suyo seria extender esto con otras fuentes provenientes de MySQL. Estoy buscando a alguien que pueda llev...

    $570 (Avg Bid)
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    Busco programador(a) WHM 2 Finalizado left
    VERIFICADO

    Hola, para iniciar por favor escribe la respuesta de la pregunta al inicio de tu oferta. ¿Cuál es el número de el chavo? Estoy buscando una persona proactiva con experiencia en programación y WHM para trabajar en diferentes proyectos con la posibilidad de establecer un equipo para ofrecer otros servicios relacionados con el área. El postulante debe saber trabajar bajo ambiente Windows o Mac El puesto de trabajo es presencial con facilidades en el horario. El precio de la oferta es en base un mes de trabajo. Si la persona es diseñador gráfico o sabe algunos programas de diseño, es un plus. Nuevos en la plataforma de freelancer son bienvenidos. Buena Suerte!

    $476 (Avg Bid)
    Local
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    Hi everyone, I'm looking for an experienced freelancer to help me build a real-time system for air traffic monitoring and control. This system needs to be deployed on the QNX platform. Experienced freelancers should include their experience in their application as that is the most important criteria for selection. Once the system is setup, I'll need the freelancer to provide training support to ensure its efficient use. If you are interested in this project, send me your application, including your past work and a detailed project proposal. Thanks!

    $1574 (Avg Bid)
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    Google bigquery help 6 días left
    VERIFICADO

    Hello! I am looking for consulting services to help me with my Google BigQuery needs for our SaaS app. Specifically, I need external help to generate reports and set up the environment. Each client will have their own data, and we have one table with a few columns for each client. We need to pivot the data by grouping it by year, semester, and quarter. In some cases, we also need to perform simple math with the result of the SUM of two or three columns. I need help to determine the best way to do this, whether we can do it inside BigQuery or return the amounts and run the calculations on the frontend. Since we will have many users running different filters, we want to allow users to save data presets as a view on the frontend. We need to improve these queries if possible. Lastly, I need...

    $127 (Avg Bid)
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    API Connections (ten) 6 días left
    VERIFICADO

    API connections needed. There will be about 8 to 10. Requirements 1. Programming language: C#, .NET 2. DB connectivity via EntityFramework 3. DB: Azure SQL Server (just for their information, any DB work we can implement) 4. You dont need to deploy, we deploy the code to an Azure Web API.

    $206 (Avg Bid)
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    Dear Freelancers, We are company based in Bangalore. Currently looking for experienced Custom Application Developers who are proficient in PHP script. We have over 150 applications that require customization and we are seeking individuals who can work with us to deliver high-quality results within a timely manner. If you have expertise in PHP, as well as experience in developing custom applications, we encourage you to apply for this opportunity. As a freelancer, you will have the opportunity to work remotely and collaborate with our team to create custom solutions for our clients. We look forward to hearing from you and potentially working together in the near future.

    $13 / hr (Avg Bid)
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    Database Normalisation Problem 6 días left
    VERIFICADO

    Need to Normalise a given form to its 3NF stage and state all the dependencies in each stage from UNF. This is a database concept.

    $28 (Avg Bid)
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    Private lessons on ServiceNow 6 días left
    VERIFICADO

    I need between 20-30 hours of private lessons on ServiceNow. The teacher must be a Certified Technical Architect with at least 5 years of experience.

    $40 / hr (Avg Bid)
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    Tidying up wordpress database and normalized the tables so we can easily use it in a single transaction API. We are non-profit organization so we can't offer high compensation (max 100 USD). It's a simple work, we need to connect 4-5 post type (incuding woocommerce 'product', images, taxonomy, CPT UI post type) under one connection so API can call the relevant data one time instead of multiple time.

    $145 (Avg Bid)
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    Looking for database projects 6 días left
    VERIFICADO

    I am looking for someone to create database projects using SQL, with an advanced level of complexity. Whether hosting the database on a server is needed or not is uncertain. Therefore, I am looking for a resourceful database expert who can assess the situation and provide sound advice on the best solution. If they are also adept at other database technologies such as NoSQL and cloud solutions, this would be a valuable bonus.

    $117 (Avg Bid)
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    24 ofertas

    Necesito proyectar un sistema en Flutterflow Para un sistema de courier

    $188 (Avg Bid)
    $188 Oferta promedio
    16 ofertas

    code as per requirements in the sheet

    $31 (Avg Bid)
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    34 ofertas
    i need help in code 5 días left
    VERIFICADO

    I need assistance in a code as per requirements given

    $21 (Avg Bid)
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    11 ofertas

    We have an Access Db with a SQL backend which we use as a CRM and customer log that we designed ourselves 17 years ago. This is based on our server and is now reaching its end of life. We therefore want to build a new database using latest tech, probably cloud based, to record our actions with customers, and record time or value for each, with simple easy to use activity and value reporting. The current Db records user, time and date of activity, nature of activity, e.g. sales/ admin etc, client name with details of contacts, records of terms sent, notes, time log (this automatic from start of entry) and so on. Values are not currently linked to invoicing or online accountancy software and having auto invoicing would potentially be an advantage. We are based in Hove, Sussex.

    $2828 (Avg Bid)
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    MySQL database 5 días left
    VERIFICADO

    I have excel files. I need someone to create a MySQL database where I can upload files everyday.

    $146 (Avg Bid)
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    122 ofertas

    I have a membership based website using Wordpress and Ultimate Member Pro. Many of the members have not uploaded their profile picture. I want to download their photos from LinkedIn and then post those directly into the SQL database on the site. We have root access to the server. 1. We can scrape the photos or you can. 2. We will provide the member ID that the photos are associated with 3. You need to create a process that will insert the photos into the proper spot in the database. 4. You'll test this on a dev server with a small number of records. 5. Once it's working, we'll test the bulk solution (thousands of records involved). 6. When the solution is stable on the dev site, we will redo the process for the production site. 7. We will need to do this again in ...

    $175 (Avg Bid)
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    MS access database check 5 días left
    VERIFICADO

    I need help with a MS access database that has already been created. the data base is about product suppliers and products. Some products are suplied by many suppliers and one supplier will have many products. the goal is for me to easily compare the price of single product from various suppliers so that i can select the supplier. i have already created this database but want a professional to have a look at this and provide the following improvements. I want to enter data about new products from the products table. From the products table, if i need to enter a new supplier information, i should be able to do it from this table also. i have uploaded a relationship diagramme. the data base will be send to the selected freelancer

    $37 (Avg Bid)
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    RFID reader to Local SQL 5 días left
    VERIFICADO

    I'm looking for someone who can connect a portable RFID reader to my local SQL server using a WiFi connection. The RFID reader needs to be able to input text data into the system. The project requires a quick turnaround, so only experienced individuals need apply. Security and privacy of the data is essential so experience with encryption is also preferred. Knowledgeable individuals should feel free to contact me if they're able to provide a solution. Thank you in advance. The manual of the RFID reader is attached . I need the scanned Tag by this reader to be inserted into SQL Server . I am developing an application based on this data for reporting and tracking assets inside a warehouse.

    $15 (Avg Bid)
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    4 ofertas
    The Trading Project 5 días left
    VERIFICADO

    I am looking for programmer that knows Azure, SQL, and the skill to assemble a platform from several integrated programs.

    $340 / hr (Avg Bid)
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    25 ofertas
    I NEED help in code in sql 4 días left
    VERIFICADO

    pls assist in code in sql as per requirements

    $22 (Avg Bid)
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    76 ofertas

    I'm looking for an experienced Power BI expert who can help me with a proof of concept task that I need to have completed as soon as possible. This project will involve designing a fully functional analytics platform with Power BI. I have intermediate experience with the tool, but need a skilled professional to help me achieve my vision. I need this project completed ASAP. If you have the skills and the availability, please reach out and let me know. I look forward to hearing from you.

    $45 (Avg Bid)
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    33 ofertas

    The development is already done and there are small methods, need to write unit tests for each postgresql, python, sqlalchemy, pytest skill required

    $89 (Avg Bid)
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    12 ofertas
    sql and Tableau help 4 días left
    VERIFICADO

    I need help with using sql and Tableau particularly debugging the count from sql to Tableau. I am familiar with the concepts and just need someone to help me execute them. If you have expertise in this area, I would love to have your help.

    $24 (Avg Bid)
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    23 ofertas

    I need a database for a startup company for grain storage. I need it to track each customers unloads and outlays, tonnage, what grade it is, send invoices etc. no preferences on the programming language but would need to be easy to use

    $2721 (Avg Bid)
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    I am looking for an expert consultant to help me with modeling and normalization for my relational database. I need help with design enhancements and optimization, but do not need help populating the database. Additionally, I am also in need of additional consulting services to ensure that I have a fully functional, properly designed database. The consultant should have extensive knowledge and experience in relational database modeling and normalization, as well as the ability to identify and evaluate changes that should be made to improve design effectiveness. Strong understanding of relational database concepts: The freelancer should have a solid grasp of the principles of relational databases, including tables, primary and foreign keys, relationships, and constraints. Database modelin...

    $1069 (Avg Bid)
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    Hello, We have setup a replication from MSSQL to MySQL. SymmetricDS auto creates the schema, but one table in source (MSSQL) contains trailing space => 'Artikelnr '. This gives an error with MySQL. This project is about fixing this issue so it automatically corrects it and creates the table. <!DOCTYPE database SYSTEM ""> <database name="dataextractor"> <table name=""> <column name="Artikelnr " type="VARCHAR" size="50"> <platform-column name="mssql2016" type="varchar" size="50"/> </column> Must be future proof so no one time manual fixes. A pastebin log file can be supplied for more info.

    $489 (Avg Bid)
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    help in coding of sql 3 días left
    VERIFICADO

    I am looking for an expert in coding SQL to help with a project. Specifically, I need help with debugging existing code, creating stored procedures and working with a MySQL database. The ideal candidate should have extensive experience in coding SQL, including working with databases, debugging code and writing stored procedures. An aptitude to problem solving is also essential.

    $49 (Avg Bid)
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    Looking for dedicated Developer 3 días left
    VERIFICADO

    Hi, I have multiple projects which is based on .Net. Interested person only contact me. Details will be shared with the selected candidate. Regards, Dipak

    $141 (Avg Bid)
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    42 ofertas

    .NET MVC 5 ile yazılmış (Veri tabanı: MSSQL) Ecza deposu ERP programımızdan, 4 adet eczane otomasyon programına E-fatura iletmek için Web servisi yazdırmak istiyoruz. 4 adet eczane otomasyon programının url'lerini belirtiyorum. 1) 2) 3) 4) * ERP programımızdan bu 4 adet eczcane programı ile uyumlu, E-fatura aktarımı yapabilmek için web servisi yazılmasını istiyoruz

    $28 (Avg Bid)
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    6 ofertas

    As per our project scope, we need to save the data from the primary server to the secondary server. However, In the secondary server, the field of date-time is considered the same server system date-time. According to the requirement Need to pass the value of date-time parameters from the primary to the secondary server. Find strings in multiple tables of the Database. Hence, I would like to request you please do the needful for the same. please let me know if you have any concerns.

    $50 / hr (Avg Bid)
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    I am looking for someone that is an expert at creating Dev Express Reports with the Report master tool. I have existing software that is written with Dev Express C++. Some of the reports have already been created. These reports would just need to be modified to a more modern look. I would also like to talk about adding more reports if possible. If I choose you to work with this is how it would work. I would send you a copy of the software, You would go to the admin>reports and create 1 report. You can export the database and send it to me to load on my software. I can review the report to see if it is what is needed. Please only reply if you have experience in this type of work. Give me an estimate to upgrade 1 existing report.

    $243 (Avg Bid)
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    30,000 Foot View On Air: At Air, we are obsessed with creating magical products that will make our future grandkids proud and that cause our customer’s faces to light up. We are currently working on a suite of products that help businesses scale rapidly… from a fintech platform that facilitates high ticket purchases, to a conversational AI that can have full-blown 25 minute sales calls and is indistinguishable from a human. Because of our customers' love for our products, we’ve generated $9.7MM+ in revenue since launching Air 71 days ago ($50MM/yr pace w/o a dime of VC capital) What We Are Looking For: We are looking for a general tech wizard to help with a ton of different special projects. You'll be working directly alongside the co-founders solving challeng...

    $63757 (Avg Bid)
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    Database Security 2 días left
    VERIFICADO

    Module Learning Outcomes The following LOs are achieved by the student by completing the assignment successfully 1. Evaluate techniques used to ensure security in a database-oriented information system. 2. Manage user access and user profiles within a complex and DBMS. 3. Conduct database audit. Assignment Objective 1. Understand the security attacks in the database. 2. Create database security auditing plan. 3. Implement user management controls to achieve security requirements. Write assignment

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    MySql Expert 2 días left
    VERIFICADO

    Hello I need mysql expert within DB and hosting.i have files,i will share it .it is simple work if you are check and solve my problem. Thank you

    $15 (Avg Bid)
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    29 ofertas

    SQL - EXCEL Link for Navision General Ledger Entries with Balance and Full Record I need one excel file with SQL link to Navision and full scope General Ledger Transaktions

    $162 (Avg Bid)
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    File Sharing Database System 2 días left
    VERIFICADO

    Description on document attached.

    $1416 (Avg Bid)
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    I'm looking for an experienced professional to build a school management system that focuses on student database management. The system should store student records and be designed with the ability to interface with any existing school systems in the future. It is important that the system is secure and organized, designed to provide seamless data access and tracking of student information. I'm looking for someone who can implement efficient processes to facilitate quick data input and retrieval, ensuring that all stored information is accurate and up-to-date. The developer should have extensive knowledge of database design to ensure functionality and optimization for the system.

    $159 (Avg Bid)
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    Build a chatbot to teach various data engineering concepts. The topics of teaching include SQL Programming, Data Modeling, Data Visualization, ETL, Data Analysis, etc. Details on what each concept should cover will be provided. The responses should include videos, code snippets, etc. The objective is to build a chatbot to make learning complex topics simple. Need the ability to scale the bot to add new topics in the future, like Data Science, Statistics, etc. Finally, looking to build both a web page and a mobile app for the chatbot, but can focus on the web page to begin with.

    $26 / hr (Avg Bid)
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    The project is written in C# (Microsoft Visual Studio 2013 or Its later version) as front end , Microsoft SQL Server database as back end with Crystal Reports. I would like to make some modifications to the program 1- The product number (or any way to protect the program from copying on multiple computers). The goal is to activate the product on one or two computers so that the program does not work when copied by the customer to another computer. 2- Print invoices after the sale process via a thermal printer with a printer selection page and print paper settings 3- Modify the barcode printing page and make it possible to choose page dimensions and printer type 3- Adding the feature of selling by installments (payment in stages, such as every month or date, when the customer pays part ...

    $52 (Avg Bid)
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    I want to stored a trained .h5 model in SQLserver and be able to use it to predict future data

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    Hello everyone! I am currently looking for a developer for a FiveM project in an associative declaring structure. I suspect that DEVs are a rare commodity, but I take the liberty of throwing a bottle into the sea which, with luck, will find a recipient. I'm looking for someone with experience who can get involved over the long term, see very long term! Remuneration is of course considered, our association would like an estimate on the project in view of these ambitions Thank you for your attention and see you soon, my PMs are here for more explanations!

    $534 (Avg Bid)
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    15 ofertas
    Sql serveice reporting service 1 día left
    VERIFICADO

    I want to implement SSRS and integrate with my web based application

    $281 (Avg Bid)
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    15 ofertas
    Oracle sql tuning - DB Tuning 1 día left
    VERIFICADO

    Oracle SQL Tuning, Tuning 4 oracle Exadata queries that's taking 3-4 minutes to run to make it to run in less than 30 seconds.

    $118 (Avg Bid)
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    22 ofertas
    Access VBA Development using ADO 1 día left
    VERIFICADO

    Need a simple Access UI to connect to the back end sql server databases using 1) ADO Connection 2) Ability to Save the connections in the Local Database 3) Data Select and DML operations 4) Pass Through Queries Execution

    $164 (Avg Bid)
    $164 Oferta promedio
    18 ofertas
    Magneto 2 SQL error 1 día left
    VERIFICADO

    In line 144: SQLSTATE[HY000] [1040] Too many connections In line 128: SQLSTATE[HY000] [1040] Too many connections

    $34 (Avg Bid)
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    Alexandros.Mdb 21 horas left
    VERIFICADO

    One of our clients has many Access 2003 databases which they have adjusted many times. They would like to make some changes to these 2003 Mdbs and after all of their 2003 Mdbs have been adjusted they would like to upgrade all of their difference Access database to Access 2007.

    $144 (Avg Bid)
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    I need a ColdFusion programmer who can administer and maintain a legacy CF application currently using CF 10, SQL Server 12, and Dreamweaver v11 (or a different type of application interface, if desired). The application needs to be set up in a sandbox on the development computer. Maintenance requirements are minimal and involve updating CF HTML primarily with little or no programming. After the goal listed above is accomplished, we will entertain a quote to upgrade the application to current versions of CF and SQL server.

    $53 / hr (Avg Bid)
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    Hi, I have an existing application which is developed on .Net 4 and we are planning to implement the new design/Theme based on the existing code. Detailed discussion will be done with the interested candidate. Feel free to contact with me. Regards, Dipak

    $352 (Avg Bid)
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    42 ofertas

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