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!

From 358,541 reviews, clients rate our SQL Developers 4.87 out of 5 stars.
Hire SQL Developers

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    75 jobs found, pricing in USD
    .Net Developer 6 days left
    VERIFIED

    I'm looking for experinced .Net Developer based on Egypt to provide support for existing applications for 2 weeks only. - 5 Yrs plus in MS Technology, SQL/C#/JS/SSRS

    $5 / hr (Avg Bid)
    $5 / hr Avg Bid
    10 bids

    I have a current project and i want to set it up on local pc and link to sql and php api so that i can work and debug locally.

    $140 (Avg Bid)
    $140 Avg Bid
    17 bids

    Build a local web dashboard to show good datasets (statistics, filters, graphs) linked with SQL server To be developed using SQLserver & Python

    $148 (Avg Bid)
    $148 Avg Bid
    12 bids

    We are looking to engage a highly skilled freelancer who can assist us in integrating SQL databases with our NTINDI supply chain web application. Our cutting-edge solution caters to Enterprise companies seeking to track the sustainability progress of their suppliers by connecting with each supplier's specific instance of our platform. With multiple suppliers subscribing to our platform, each working through pre-made, specific workflows, the networks can be large and complex. Bringing this data back into their own NTINDI Enterprise portal provides a control tower view of all progress made. We require a professional who can work seamlessly with our existing development team to document our entire backend solution and ensure its functionality. Additionally, the candidate will run exte...

    $767 (Avg Bid)
    Urgent
    $767 Avg Bid
    29 bids

    I have to complete 2 challenges, that test beginner/ intermediate Python and SQL skills. I basically have to pair this skills with problem-solving and creative thinking. I have to submit my work before the 30th of March and it has to be like it was made by a brilliant beginner/intermediate python developer. I am attaching below both challenges. Contact me for rate and prices.

    $30 (Avg Bid)
    $30 Avg Bid
    11 bids

    I have an sql server which i pull service-related data from in power bi. its all organized in tables now. im looking for a person who can zoom call IMMEDIATELY right now for maybe an hour or two. Open to pay negotiations if you can REALLY help me. must know at least dax.

    $46 / hr (Avg Bid)
    $46 / hr Avg Bid
    11 bids

    Our company is currently seeking a skilled Tableau Developer and Power BI Expert to join our team. As a data visualization specialist, you will be responsible for developing and implementing visualizations, reports, and dashboards to help us gain valuable insights into our data. Responsibilities: Design and develop data visualizations using Tableau and Power BI Create and customize dashboards to meet business requirements Generate reports and automate report generation processes Analyze data, create data models and integrate and transform data from multiple sources Optimize performance and troubleshoot issues Collaborate with stakeholders to identify business needs and design solutions Requirements: Proven experience in developing visualizations using Tableau and Power BI Strong knowled...

    $13 / hr (Avg Bid)
    Featured
    $13 / hr Avg Bid
    18 bids
    SQL Server Blocking issue 6 days left
    VERIFIED

    Hi, I need your help to optimize SQL Server performance issue.

    $39 (Avg Bid)
    $39 Avg Bid
    22 bids

    My project is a spam classifier system built with a serverless platform and using a Naive Bayes algorithm. We are looking for an experienced developer to create the system using Python. The serverless platform will make the system highly scalable and cost-effective, while the Naive Bayes algorithm will maximize accuracy and speed in detecting potential spam. The engineer will be responsible for designing, building, and testing the system, using Python and any necessary third-party APIs to ensure proper functionality. Additionally, they must ensure that the system works seamlessly with the existing systems and data sources. We anticipate this project will take a minimum of two weeks to complete, depending on the complexity. As appropriate, the engineer must document their code and provide...

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    13 bids

    We are looking for a simple "CRM like" asp.net based web page/application with user logins. Application should read & write data into a database i.e. view, modify & create entities. For starters, entities will be Customers, Projects, Users. Database model will be provided as a part of specification. Application will be hosted on azure web app service. Branding and visual "eye candy" is out of scope. Application needs to be created & written in a sense that it can be easily scaled up.

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    66 bids

    I have designed the website using vue and node js and would need to accept payments through a gateway

    $71 (Avg Bid)
    $71 Avg Bid
    4 bids

    Looking for Remote - Power BI Developer - Full time Contract Experience - 10-12 years Job Description: Power BI Dashboards(MOQ, Retail, Camp Master, P&L), • Yardi Orion BI Dashboards(on SQL DB) • MOQ – POS Connectivity for New Tenants on .NET based Program. • Other Automation Programmes Support to the RPA Specialists Must Haves • Advance SQL query writer, tsql, ddl,dml • Power bi , DAX ability, • API read and write information, (postman, etc) • Basic C#, Python read and understandable

    $44 (Avg Bid)
    $44 Avg Bid
    9 bids
    Database Project 5 days left

    Drawing B+ and B- trees and knowledge on hash table buckets can be really helpful. New freelancers needed

    $24 / hr (Avg Bid)
    $24 / hr Avg Bid
    6 bids
    Database Expert 5 days left
    VERIFIED

    Here's a simple flow leading form a mobile base in website.i have sample.i need database also.

    $15 (Avg Bid)
    $15 Avg Bid
    18 bids

    A database to be made using a previous websites information. ERD will be given to follow along with. A dev server will be used to make changes along with MySQL. PHP will also be needed for this. The website should be able to be changed with the database.

    $191 (Avg Bid)
    $191 Avg Bid
    41 bids
    DBA expert needed 5 days left
    VERIFIED

    I'm looking for an expert DBA to help with a project related to moving data from an existing MySQL-based database to a new database system. Both database have different structure, table and datatype. I'm looking for someone with experience and expertise in MySQL, as well as a strong knowledge of best practices when it comes to data migration. Ideally, the candidate should have experience working on project-based tasks and be able to provide clear timelines for completion of the project. If you think you would make a great fit for this project, please don't hesitate to apply!

    $70 - $100
    Sealed
    $70 - $100
    14 bids

    I need to move data around from an existing database into other databases and api sources

    $26 / hr (Avg Bid)
    $26 / hr Avg Bid
    80 bids

    I am looking for someone to help me with a project involving sql (Structured Query Language). I don't need help writing a query, but I don't have an existing database nor do I have the structure set up. I also do not need help creating stored procedures. The project does not involve any of these tasks. I simply need somebody to help me with sql for a particular project.

    $8 / hr (Avg Bid)
    $8 / hr Avg Bid
    29 bids
    VISUAL BASIC EXCEL 5 days left
    VERIFIED

    I NEED TO CREATE A REGISTRATION FORM, TO CREATE BOMS USING A DATABASE.

    $139 (Avg Bid)
    $139 Avg Bid
    51 bids

    I'm looking to hire a freelancer who can help me with Oracle SQL Query Tuning and improve Oracle Performance. I will be using Oracle Exadata Database and therefore the successful freelancer should have prior experience working with these versions. The specific work required is Ad-hoc Query Tuning so the applicant should include relevant past work and experiences as part of their application. Detailed project proposals are also appreciated. Scenario: 4 Oracle SQL Queries that we have taking time anywhere from 3-7 minutes and wanted these to be running in less than 30 seconds. So require some one with Oracle SQL Performance Tuning Expertise to rewrite the query or Add any DB Configuration or Indexes or other Performance enhancement tips to cut that runtime down to 30 seconds or less. ...

    $391 (Avg Bid)
    $391 Avg Bid
    30 bids
    Database Project -- 3 5 days left
    VERIFIED

    Drawing B+ and B- trees and knowledge on hash table buckets can be really helpful.

    $26 (Avg Bid)
    $26 Avg Bid
    16 bids

    I am looking for Freelancer with good Technical skills in ASP.NET. Only the serious developer and must have good knowledge in asp.net and can work long terms on task basis. Regards!

    $34 (Avg Bid)
    $34 Avg Bid
    9 bids

    I am looking for Freelancer with good Technical skills in ASP.NET. Only the serious developer and must have good knowledge in asp.net and can work long terms on task basis. Regards!

    $59 (Avg Bid)
    $59 Avg Bid
    9 bids

    Hello. I am finding ASP .NET Core API developer who know CQRS pattern. This is full time position. Please tell me your availability per week.

    $32 / hr (Avg Bid)
    $32 / hr Avg Bid
    69 bids

    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:

    $35 (Avg Bid)
    $35 Avg Bid
    6 bids

    Person should have experience in Java 11 AWS - lambda, S3, Postgres SQL, IAM Lambda should be written in Java 11 corretto.

    $8 / hr (Avg Bid)
    $8 / hr Avg Bid
    7 bids

    Hi, please read my requirement carefully and bid on my project only 5+ year experienced candidate in ASP.Net core, MS SQL Server. Requirement: 1) Tax Regime Form, Tax definition form for GST Setup and a Item Tax class form 2) Develop a procedure at backend which can be called to apply accounting (accounting double entry fession): 3) Develop a price list form: description - Price list form should have two major sections ( A: Master- in which we will declare price list header level details like Price List short Name, Description, Start Date, End Date, Enabled Flag, Global Discount etc. B: Detail- Here will assign all types of items (Goods and Service Type item), Rate, Start date, End Date, discount etc. 4) Integrate this new price list form with existing sales and purchase orde...

    $444 (Avg Bid)
    NDA
    $444 Avg Bid
    7 bids
    $54 / hr Avg Bid
    17 bids

    by exident I reinstalled my forum. I have the SQL database with all categories ect. Can someonme help me fix it ?? to inplent again!!

    $440 (Avg Bid)
    $440 Avg Bid
    38 bids

    Sql server database backup job position We need a responsible hard worker that delivers results in a timely manner and that respects time estimates and pre agreed goals. A remote job cannot work properly without time / results discipline. Able to work remotely and independently making changes visible worldwide for peers from all over the world. Need to be free from other projects / family issues at least 10 hours a week. A few hours every week day to not miss with responsabilities. End of the week chat or live call required to keep up the project and avoid time lapses of no improves. New backend loader responsabilities: Backup DBs. And upload them if needed Install software in new servers. Able to install LAMP or equivalent smoothly. General mantainance of site's versions Updating m...

    $101 (Avg Bid)
    $101 Avg Bid
    14 bids
    Create a database 4 days left
    VERIFIED

    I have several realestate documents of realestate pin numbers and lot number owned by several owners. We are looking for someone to transpose from the paper print outs and list the owner names, the pin number and the lot numbers associated by owner. In other words, we are looking for the number of lots owned by each named owner. What owner names are associated to lots and pin numbers.

    $224 (Avg Bid)
    Featured
    $224 Avg Bid
    31 bids
    parse json data in snowflake 4 days left
    VERIFIED

    Hello all, I want to parse json data in snowflake with iterate, without defining the column name.

    $11 (Avg Bid)
    $11 Avg Bid
    6 bids

    Will need to screen-share to be coached in realtime while completing the assessment. If that sounds like your interested. Give me a shout!

    $16 / hr (Avg Bid)
    $16 / hr Avg Bid
    29 bids
    Make my app a PWA 4 days left
    VERIFIED

    I am looking for a web developer to help me turn my app into a Progressive Web App (PWA). My app needs to be supported on the browser platform, and should be offline capable. A key element of the project will be to implement dynamic data into the PWA, making sure it works in all conditions. Features I'm interested on: Full responsiveness Push notifications Install icon message Offline Remember me option or something similar to keep me login I have SSL certificate The app is already working, Find on Github I would like to add, manifest, configure service worker and and just the necessary files. I wouldn't like to start all over or working on some framework. I found something similar that I think it might help If you believe that you have the experience and skills needed to...

    $173 (Avg Bid)
    $173 Avg Bid
    43 bids
    SAP ABAP course teacher 4 days left
    VERIFIED

    I need an ABAP programmer teacher to do a course. The course is remote and for 4 people, full time for 1 month 4 hours a day. The basic fundamentals of ABAP should be taught. If interested, I'll send and share the course schedule. The teacher will have to be on call for 4 hours a day and speak in English to a class of 4 people. We expect the course to start within 10 days.

    $10 / hr (Avg Bid)
    $10 / hr Avg Bid
    7 bids

    Hi, We are looking for expert who could help us get data on existing report in SQL server reporting services & microsoft report builder, 2 reports are currently not returning data suddenly everything is intact, we are using SQL server 2016. SQL query in dataset is not returning data as of now. connection string / some connection dataset or queries needs to be checked. There is a table created by our team in SQL 2016. We need help in getting the data from database.

    $111 (Avg Bid)
    $111 Avg Bid
    13 bids

    i need someone who is good at ERD, 3NF, Data dictionary, SQL scripts use of ER modelling

    $28 (Avg Bid)
    $28 Avg Bid
    15 bids

    Need Oracle expert and python and also minimum 3 years of experience in IT . Small task just plug and play the code. Old query replace with new query.

    $7 / hr (Avg Bid)
    $7 / hr Avg Bid
    11 bids
    Sql server programmer 4 days left
    VERIFIED

    I need a good sql server programmer to be my right hand man , I have multiple projects small and big .I just need someone that knows SQL not bid if you haven't read the description ,you will be denied

    $22 (Avg Bid)
    $22 Avg Bid
    46 bids

    I am looking for an experienced Oracle SQL and Python expert who is comfortable working at an intermediate level. The ideal candidate should have experience in a similar position, and should be able to demonstrate their ability to fulfill this role. The deliverables of the project will be SQL scripts that are built to accomplish a specific goal. This can involve automation of existing databases, as well as writing and improving existing ones. The successful freelancer will also be expected to perform data analysis and create reports from the results. For consideration, please include relevant experience, detailed project proposals and also past work in your application.

    $11 / hr (Avg Bid)
    $11 / hr Avg Bid
    10 bids

    Hi I need to do the certificate for ifs supply chain practitioner. Need your help if you can. I am sending you the sample questions. If you think you can work on this let me know. You just need to know how use the ifs application.

    $11 / hr (Avg Bid)
    $11 / hr Avg Bid
    2 bids

    I'm looking for an Oracle SQL and Python expert to help with a personal project I am working on. I have existing materials that need to be modified and utilized for the given project. The amount of time needed for this project should not exceed 2 hours. This project is for personal use and does not involve starting a new enterprise or working for an existing business. I am a knowledgeable user of SQL and Python, but am looking for someone who may have more experience to give me some extra guidance in completing my project with these languages. If you are an experienced Oracle SQL and Python programmer, I would greatly appreciate your assistance. If you are able to help complete the project in under two hours, please reach out to me and let's discuss further!

    $8 / hr (Avg Bid)
    $8 / hr Avg Bid
    10 bids

    I am looking for an experienced PHP developer to help me with an automation project involving Microsoft Excel. I need to be able to customize the Excel sheet to a high degree, so that it properly pulls data from formulas and calculations. This is a critical project for me, so the ideal candidate will have experience in automating data from Microsoft Excel.

    $85 (Avg Bid)
    $85 Avg Bid
    18 bids

    Analysis of changes and massive update of data between two tables of agricultural parcels with a common field. Work environments: GIS, ms access, SQL and python.

    $16 / hr (Avg Bid)
    $16 / hr Avg Bid
    42 bids

    I am looking for an automation anywhere and SQL expert to help with a one-time project. The scope of the project is designed to be completed within a week. My team is not sure whether we have an automation anywhere or sql expert already present. If you have the expertise, I would love to hear from you.

    $489 (Avg Bid)
    $489 Avg Bid
    39 bids
    Neo4j project -- 3 4 days left
    VERIFIED

    I'm looking for an experienced Neo4j freelancer to help me with a project. The goal is to create a new data model in Neo4j that will allow us to visualise our data. I will provide the data and all necessary documents; the freelancer's job will be to build the model and bring it to life. I'm looking for someone with a strong background in data modelling, preferably with experience working with Neo4j. This will require a deep understanding of Neo4j structure and features and the ability to create custom queries, models, and visualisations as needed. If you're up for the challenge and think you can help, I'd love to hear from you. Please note that payment is gladly made but only after completion of each milestone.

    $116 (Avg Bid)
    $116 Avg Bid
    7 bids

    Warning: Only working directly with Developers only No third parties or Sales Guy or CEO prohibited on this project: will be reported n case of violence: most of the bidders are just time wasters so please make sure you are not one of them dum persons. thanks we are looking Expert in Vue JS - Front End - Web API .Net core and good knowledge of handling web api .net core and store procedure this gonna be a long term project for a right and skilled dev we are looking, so no time wasters please bid only if you are skilled full because technical screening will be done before hiring over here. we have project just started and right candidate expection is to grasp and get going on it we are easy going company and only required a quality and on-time results that is it. we do throw bonuses based ...

    $34 / hr (Avg Bid)
    $34 / hr Avg Bid
    86 bids
    Snipe IT DB SQL Issue 3 days left
    VERIFIED

    We are having issues with our Snipe IT Asset Management System. When removing assets or updating assets some fields are not getting updated. Example : When I check out an item it should lower the number of stock but currently it stays at the same quantity. Its like the SQL database values are not getting updated. Also when removing an item completely, the database value still stays the same. Need someone who knows Snipe IT asset System, Php and MYSQL to help fix whats going on with our Asset DB. Should be a quick job for someone who understands whats going on

    $90 (Avg Bid)
    $90 Avg Bid
    28 bids

    I am looking for expert assistance to create a SAP HANA SQL stored procedure.

    $240 (Avg Bid)
    $240 Avg Bid
    8 bids

    Job Summary: We are seeking an experienced Python Senior Developer to join our team and contribute to developing algo trading products. In this role, you will be responsible for designing, developing, and mentoring other developers to create well-written, high-performing APIs and services. Additionally, you will be responsible for the integration of different brokers to the Algoptions system through API and report management of algo trading products. You will also be required to manage a technical team and work collaboratively with technical and business teams to identify current and future business requirements. Qualifications: • Bachelor's Degree in Computer Science or a related field • 1-3 years of Python development experience • Experience with Python libraries suc...

    $751 (Avg Bid)
    $751 Avg Bid
    7 bids

    Recommended Articles Just for You

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Python runs some of the biggest websites on the net. Here’s how to create a website using Python, one of the easiest programming languages around.
    8 MIN READ
    You can build a stunning website on the Wordpress platform. Here is a collection of 10 sensational Wordpress designs to ignite your creativity.
    7 MIN READ