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 358,553 opiniones, los clientes califican nuestro SQL Developers 4.87 de un total de 5 estrellas.
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    92 trabajados encontrados, precios en USD

    Se requiere un sistema de asistencia que controle las asistencias de docentes o profesores de un grupo de colegios, escuelas y jardines, con reportes mensuales y semanales.

    $488 (Avg Bid)
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    43 ofertas

    Hola que tal busco alguien que me ayude a programar una aplicación para PC que tenga funciones de inventario entradas salidas compras reportes de movimientos de inventario generación de códigos de barras para artículos consultas de skus almacenaje de imágenes usuarios contraseñas consulta de artículos

    $486 (Avg Bid)
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    Tenía una web en funcionamiento y al borrar al administrador se borró parte del contenido. Restaure la copia seguridad desde el hosting y me baje los ficheros de contenido y el SQL . El problema es que no se cómo continuar porque hay que subirlos al mysql..alguien que pueda ayudarme . Gracias

    $173 (Avg Bid)
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    Backup + Actualización Moodle 2 días left

    Hola, necesito generar un backup y una actualización a la última versión de moodle. Agegrar un módulo que permita la generación y descarga automática del certificado de estudios. Es importante profesionalismo en esta tarea ya que la plataforma cuenta con muchos cursos e información de almunos por lo que se valora la experiencia.

    $36 (Avg Bid)
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    8 ofertas
    Consulta en mysql 1 día left

    desarrolla run consulta en sql, en la que pueda obtener el reultado deseado

    $21 (Avg Bid)
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    40 ofertas

    Si te gusta crear soluciones empresariales que den valor a las empresas y escalar económicamente junto a los proyectos esto es para ti. Busco analista de datos o analista de datos JR que quiera trabajar desde su casa creando soluciones para múltiples empresas. Es un trabajo es mensual por cada cuenta atendida.

    $129 (Avg Bid)
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    Poseo un script en funcionamiento y solo necesito pasarlo a python con libreria pandas. El mismo ejecuta una serie de SQLs ya armados (1 drop, 1 create, 2 insert, 1 verificación)

    $28 (Avg Bid)
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    SQLMap Injection 6 días left

    I am looking for a freelancer to help with a project that requires SQLMap Injection testing. I need injection tests for both automated and manual execution, and specifically require vulnerability verification of the results. The successful freelancer must be experienced in both manual and automated testing of SQLMap Injections.

    $63 (Avg Bid)
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    DotNet developer required for Improvement work in thenafter Host on server. Website address- User id- @gmail.c Password- kaspersky Explaining 'Basic functionalities' link is below- Explaining 'Improvement work to be done' video link is below-

    $142 (Avg Bid)
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    I am looking for a skilled Freelancer to help me set up a node.js project on my local PC and resolve existing bugs on the existing codebase. I will be using a Windows operating system and I have some knowledge of the codebase, but I need assistance with debugging different problems and setting up the development environment on my PC. I'm looking for someone who can quickly identify and address potential issues, make necessary improvements, and keep the development environment up and running. the current codes are running in developement mode and unable to run in production mode due the the bugs. I need to resolve the bugs as I would like to run it in production mode. Think you're the right candidate for this job? Get in touch!

    $160 (Avg Bid)
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    I am looking for a programmer to create a MSSQL database sync application which will run on a central IIS server hosted on a Windows Server. This application will be set to automatically perform a real-time database sync so that the data is always up to date. The application should be reliable, efficient and secure. The programmer needs to be experienced in developing applications for Windows Servers with knowledge of MSSQL databases. Any other suggestions that could help improve the performance and security of the application are welcome. Database structure for all sub centers are same.

    $570 (Avg Bid)
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    32 ofertas
    Issues in databases. 6 días left

    I am facing some issues in existing website regarding databases can you fix them?

    $15 (Avg Bid)
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    We are one of Australia's largest garage door manufacturers, with a national presence having branches in Western Australia, Queensland and Victoria. I'm looking for someone to convert our business' current Microsoft Excel dashboard into a fully integrated Power BI dashboard that is dynamic, easy to understand and visually appealing. Up until now, our business has run a Microsoft Excel dashboard that has pulled data from an SQL server from ERP (Enterprise Resource Planning) software called CENCO. It has acted as a means for the viewer to have a full insight and overview into our business in real-time; being able to view KPI's into multiple areas of the business, including sales and invoice figures, production numbers, sales rep budgets, labour capacity, purchase...

    $1599 (Avg Bid)
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    Access Report Recovery 6 días left

    I accidentally deleted a report from my access database and doesn't have backup. Need help to recover it.

    $24 (Avg Bid)
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    8 ofertas
    python code to sql 6 días left

    I have multiple excel files that needs to be uploaded to sql database with specifications that are explained in the document file. I have a python code that creates a sql query to upload the specific rows. I will provide the code wich its open with google connect, what I want is to create a program that will be run one time and it will upload the files straight into sql. To proceed with the project I will need to share screens with you through teamviewer or zoom so you can work through my computer since I am not able to share the database. Please place a bid if you are willing to share screens. thank you!

    $35 (Avg Bid)
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    Help with tableau 6 días left

    Need to connect with me and help me with tableau

    $13 (Avg Bid)
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    7 ofertas

    1. Billing Application for Android using C# 2. Offline and Online Capability 3. Inventory Management 4. Report Management 5. Billing Report Printing functionality

    $369 (Avg Bid)
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    rest api for guns.com and other 6 días left

    These websites allows sellers to manage inventory with rest api My desire is to use the RestAPI to manage my inventory and possible orders Currently I manually create the product listings and when we sell on a website I have to manually remove from other websites. I do have my data in a sql database so I can assist with the data table but you will have to do the api I have no experience in that JIm

    $571 (Avg Bid)
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    I work for a residential care charity and am exploring possible solutions to a problem that I have been asked to solve, and being a charity, for the least money possible..... We have approx 150 staff, who each need to take between 10 and 25 courses each per year. The courses are done by our inhouse trainer, or via online providers. I need to be able to keep track of who has completed what training and when, and alert by email them and their teamleader, when the training needs to be redone. Ideally there would be access (read only) by the teamleaders with editing rights restricted to myself and one or two others. It would need to be able to produce a report by staff member, or team, or course The report would need to demonstrate who held valid current training on each course and when...

    $1251 (Avg Bid)
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    I need someone to be able to log into my system, and extract all the database details. The database password and documentation have all disappeared with the developer of this system.

    $123 (Avg Bid)
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    Looking for .net and c# developer 5 días left

    I am looking for an experienced .net and c# developer to take on a data-driven application project. Looking for a developer with expertise in .net, and reactjs, who is also familiar with Relational database, who is good at c# .net core - mysql, sql. And Convert sql stored procedures to .net query using dapper or entity framework. We have two projects that will run simultaneously. We can discuss more details of the projects over a quick call. I have taken care of the database structure and need the project completed as soon as possible. This is an exciting opportunity to work on a complex and challenging project with a tight turnaround window. If you are up for the challenge and have the necessary proficiency with .net and c#, please apply.

    $13 / hr (Avg Bid)
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    ERD sql developer project 5 días left

    ERD generated in SQL Developer Data Modeler based on your reasonable requirements – scope to <10Relational Schema generated (and tidied) from the ERD.

    $110 (Avg Bid)
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    18 ofertas

    I'm seeking an experienced software developer to build a small react+Django full-stack project for me. The project requires the use of an SQL database, React framework for the front-end, and does not require authentication. I'm looking for fast and reliable work that meets deadlines and is of high quality. I am willing to provide more details upon request. If this project if of interest to you, and you fit these requirements, please don't hesitate to get in contact with me. backend SQL generator will be created. work mainly on the front-end.

    $229 (Avg Bid)
    $229 Oferta promedio
    53 ofertas
    Access MDB Database Editing 5 días left

    MsAccess relationship database technologies. • Knowledge of MsAccess database design • Ability to provide user with system documentation if required.

    $155 (Avg Bid)
    $155 Oferta promedio
    28 ofertas

    I would like a clean installation through the release files. I've considered some of the installer packages but would like a clean installation. The installer packages use mySQL as a back-end which I don't want. I've attempted the install and ran into incompatibility issues with certain gems through Ruby on Rails. I would ideally like a walkthrough on it. Where i can replicate the steps. Instructions here but I think I'm using the latest gems, ruby and ruby on rails:

    $51 (Avg Bid)
    $51 Oferta promedio
    5 ofertas
    Build me an iOS app/excel 5 días left

    I need a developer who understands option strategy analysis and calculator and programming. I want to have live feed of US stocks/ options on excel/sheet where I can enter various strategies in excel/sheets and I can see updates are refreshed with live prices every 5 seconds. I want similar functionality as on my iPhone. The app will be showing me live data feeds of US equity and option prices. OptionStrat and OPC (just a calculator) are similar apps.

    $583 (Avg Bid)
    $583 Oferta promedio
    45 ofertas

    We are Looking for a Database Administrator, For Providing Expert Advise on 1. Analyzing our Databases 2. Providing Expert Solution for Optimzation 3. Implementation of Plan 4. Migrating from MySQL to Other Databases

    $13 / hr (Avg Bid)
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    7 ofertas

    Environment Office 365 dan Sharepoint : 1. Microsoft Form dan Team Forms 2. Power Apps 3. Power Automate 4. Data source SQL

    $21 / hr (Avg Bid)
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    19 ofertas

    I'm looking for an experienced data analytics expert with expertise in Power BI and DAX. The data source that I would like analyzed is a SQL database. The insights that I am looking to gain are interactive reports. I already have the data set ready to go and I am able to provide it. I am expecting a professional approach to this project, and results that will meet my expectations. This is a project that can last for several month and training is required

    $21 / hr (Avg Bid)
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    Hi, I am looking for some help on the following project. BCP is used to create exports of MSSQL tables. Example: 2133|test||1|0| The desired export format is: 2133|test|N|1|0|N Meaning, the empty slots should be replaced by N. The tables are very large so we it needs to be a fast working solution.

    $137 (Avg Bid)
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    25 ofertas
    Wordpress website building 4 días left

    I need to build a wordpress website in 3-4 parts. First part is the database construction and the details are provided, as attached. This is an opportunity for those who want to increase their reviews with good scores as I'll assign other 3 projects to the same freelancer who is selected for this part of the website. I can provide a maximum of 150HKD for this task. Suitable for new freelancers who want to build their profiles with excellent reviews

    $5 / hr (Avg Bid)
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    Our database is 5 gb, recently it has started throwing randomly wait time out error. We reversed any new developments we had done. Shifted server to new server. Increased time to 2000. Still the error comes as the number of users increase. Does not come with less users.

    $128 (Avg Bid)
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    23 ofertas

    My dadabase around 5gb is suddenly showing time out errors. All routine solutions done. New codes revised. Still error randomly persists.

    $310 (Avg Bid)
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    16 ofertas
    SQL database graph design 4 días left

    I need someone that can create a visualization of my SQL Database named FDOT_Test_Road_DB. For this project to be completed we will have to share screens through teamviewer or zoom so you can work through my screen the final goal is to show how each table is linked to each other as well as the views. There is an example below of what it needs to be performed.

    $159 (Avg Bid)
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    37 ofertas

    Unable to use application due to non-availability of database for application server. In any case if any one of the database servers are down system should automatically switch to different node to make sure application should be running and end user should not have any impact for both execution and downloading reports.

    $280 (Avg Bid)
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    6 ofertas
    Develop CRUD operation in PHP 3 días left

    I am looking for someone to develop a CRUD operation in PHP with a MySQL database and for it to be hosted on a self-hosted environment. User authentication is not necessary. The deliverables should include the source code of all related files, the written documentation, and any other related documents. Furthermore, I will need proof that the operation works correctly. I'm open to proposals on the best route to deliver this project and am eager to get started.

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

    Unable to use application due to non-availability of database for application server.

    $12 / hr (Avg Bid)
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    2 ofertas
    Create a sequel query 17 March 3 días left

    I'm looking for someone to create a sequel query on 17 March. The task would require the use of Azure Data Studio, as well as any reference materials necessary to complete the project. The completed project should be delivered in a SQL Database format. The right freelancer should be able to efficiently create a sequel query based on the given instructions.

    $134 (Avg Bid)
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    29 ofertas

    I want to Building a database that will store and display data about Formula 1. The details will be discussed in the chat. please bid if you are expert.

    $7 - $67
    $7 - $67
    31 ofertas
    help me in writing code in sql 3 días left

    Hello, I am looking for someone to help me write code in SQL for a personal project I am working on. Specifically, I need someone who is familiar with the SQL language who can help me write code for this project. I do not have a specific database that needs to be accessed; I just need someone to help me write the code in SQL.

    $28 (Avg Bid)
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    DBA sql server 2017 scale out 3 días left


    $42 / hr (Avg Bid)
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    Automate oracle DB Sswitchover 1. Perform the checklist for ADG and DB server switchover readiness 2. Automate the DB switchover 3. Post check after primary DB 4. Validate GG config, if server had one 5. Shell script to Python script needs to be done

    $13 / hr (Avg Bid)
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    Hi, I run a textile manufacturing business. I have a textile ERP setup that uses SQL. I want to build an inventory management system that can track my raw material, my work in progress, and my finish inventory level. If I can setup it in a way where the module can import data from SQL like material bill and sales bills, that'd make it even better.

    $125 (Avg Bid)
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    Power BI developer -- 2 2 días left

    We are looking for a Power BI developer with good knowledge in below. Study, analyze and understand business requirements in context to business intelligence. Design and map data models to shift raw data into meaningful insights. Utilize Power BI to build interactive and visually appealing dashboards and reports. Run DAX queries and functions in Power BI Good knowledge in SQL queries, views and procedures.

    $12 / hr (Avg Bid)
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    I want to scrape data from a website and put that data in SQL server and then again I want that data to be placed in Power BI without human intervention.

    $42 (Avg Bid)
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    Sql expert in medical domain 2 días left

    Need an sql expert to clarify my doubts typically takes 1 to 2 hrs.

    $40 (Avg Bid)
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    25 ofertas

    I want to create a simple Job portal where companies can open their job, select candidates, schedule interviews and finalize the candidates and the interview process management should also be there and it should have candidate login structure also.

    $84 (Avg Bid)
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    1 ofertas

    I am using wamp 3.3.0 with php 8.2.0 I have a SQL server database which I want to connect form my web pages using the wamp server in that particular version, I want someone to help me to find the suitable version of the sqlserv extension to connect between php 8.2.0 to SQL server

    $35 (Avg Bid)
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    ** Updated description Job Title: C# Developer - HTTPS SOAP Project Job Description: We are looking for a skilled C# developer to create a HTTPS SOAP project that includes a client and a server. The project must be created as WPF user controls and will require SSL using cert files. Additionally, SOAP file creation and processing must be based on provided WSDL and XSD files. Responsibilities: • Develop a HTTPS SOAP client and server using C# 4.8 as WPF user controls • Implement SSL using cert files for secure communication • Develop SOAP file creation and processing based on provided WSDL and XSD files • Ensure the project is scalable, reliable, and maintainable • Troubleshoot and debug issues as they arise • Collaborate with other developers, stakeholde...

    $1606 (Avg Bid)
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    Need .Net Full Stack Developer 2 días left

    Looking for full-time full stack developer for a long-term. Must-meet the following: · University degree or equivalent education (Computer Science or Technical degree is optimal) · Excellent English verbal and written communication skills · 5+ years working in a full stack Dotnet developer Experience in Asp.net MVC is required · Expertise in React.js · A positive, can-do attitude · Self-motivated to find ways to unblock oneself · Trustworthy, team-oriented, and transparent · Total Experience: 5+ years (3+ years in React.JS +Dotnet) Role Full Stack dot net developer Department Engineering - Software Employment Type Full Time Role Category Software Development Education: UG: B.Sc. in Computers, BCA in Computers, ...

    $1174 (Avg Bid)
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