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 348,033 reviews, clients rate our SQL Developers 4.85 out of 5 stars.
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    I'm searching for an experienced Android developer to connect our existing API with a mobile application. The project involves the following: - Creating a user login and registration feature. - Enabling push notifications. - Integrating social media functionalities. Additionally, the application should allow product catalog browsing, order placement, and customer management. A developer with experience in API integration is highly desirable. As for the development process, I prefer Python and the use of a high-level coding editor. If you have proficiency in these areas and have the right skills for the project, I'd like to hear from you.

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    As an experienced .NET Developer, I am looking for assistance with code optimization and feature development in both .NET 8 and Visual Studio 2019. My specific areas of concern are: - Improving execution speed - Enhancing scalability - Adding new functions to the software The development scope includes: - Microsoft SQL Database integration The ideal partner for this project would be proficient in .NET 8, Visual Studio 2019, Fluent in database integration and experienced in optimizing software for improved speed and scalability. Your track record in enhancing software functionality will also be invaluable.

    $167 (Avg Bid)
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    I'm seeking a specialist able to bring music recognition functionality to a project, specifically focusing on streaming platforms or local file ingesting. The purpose of the project is to create a system similar to Shazam, except tailored towards recognizing music from streaming URLs or local audio file recordings. Key Requirements: - Experience with Music Recognition Development and SHAZAM - Knowledge of Streaming Platforms Ideal Skills: - python and c# expert - Programming (with a focus on music/audio-centric applications)

    $186 (Avg Bid)
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    I'm looking for a talented Tableau developer to create engaging, dynamic dashboards and reports with emphasis on our digital marketing efforts. Key tasks will include: - Designing and implementing a digital marketing dashboard in Tableau. - Constructing relevant, insightful reports for our digital marketing strategies. While the specific metrics to be tracked haven't been defined yet, ideally, I would like to measure the efficiency and success of our campaigns. I need a flexible developer who can adapt to the changing needs of our digital marketing team. Skills and Experience: - Proficient in Tableau for designing dashboards and reports - Understanding of digital marketing metrics - Experience in designing interactive and dynamic data visualizations and dashboards - Strong ana...

    $87 (Avg Bid)
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    I'm in need of a proficient expert in Excel, SQL, and Python for data analysis, data visualization, and automation. The data complexity is moderate, so a good understanding of data manipulation and cleansing techniques is required. IT IS A TIMED TASK - please only reach out if it’s okay Main Responsibilities Include: - Analyzing the given data - Visualizing analyzed data - Automating tasks that involve data manipulation

    $22 / hr (Avg Bid)
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    1. We have 32 backups from the same database as .sql-files. From one table of this database we need all instances in one csv-file (with the same codepage as stated in the sql-file ). So basicly you must: - import 1st backup on your sql-server - export the table "contracts" to "csv for Excel" - repeat for all 31 other backups - put everything together in one big csv-file that is readable in Excel (pls maintain german umlaute) 2. There should be a menu-item (i.e. "Report"); clicking this asks for the date "Welches Datum?"; the current date is proposed but can be changed by choosing a date in a calendar. The report should consist of: 1. All customers that have been added at the given date. 2. All contracts that have been added at the given date...

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    I own an IT consulting firm which is recently extending its offerings to trainings in tech. The tech trainings offered are mainly focused on data analytics/science, BI and cloud computing. The courses are mainly given to people who have no prior tech or coding experience but those who want to break into tech career. I am looking to hire a skilled BI developer with extensive experience with Tableau, Power BI and other BI tools. The freelancer will be helping me design the curriculum and also teach BI and data visualization Must have skills: 1) Power BI-DAX, M Language, Data Modeling, Power Query 2) SQL 3) Good teaching skills. 4) Great command of English PLEASE SUBMIT YOUR PROPOSAL WITH YOUR RANGE OF EXPECTED HOURLY RATE!

    $22 / hr (Avg Bid)
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    I'm in need of a proficient Azure SQL developer skilled in query optimization and stored procedure. The purpose of this project is to automate certain tasks within our existing system. This will involve: - Optimizing my existing SQL scripts to ensure smoother operations - Developing new SQL scripts as required, to further enhance automation I expect candidates for this project to have robust experience in Azure SQL, particularly in developing efficient procedures and scripts. Proven problem-solving abilities and a keen eye for the fine-tuning of processes will significantly benefit this assignment. Familiarity with task automation will also be highly regarded.

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    Php and mysql expert wanted. 1 day left
    VERIFIED

    Hello, I have a simple php script and a crowded database. I need an expert to edit some queries I want on the php script and speed up my database by eliminating unnecessary queries in the database. Deadline: 24 hours Database operations will be done via AnyDesk or TeamViewer. Before the work, I will share a small part of the database.

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    I'm looking for a skilled SQL coder to help with a project management initiative. This includes: - Developing a project-focused database management system - Implementing data extraction, transformation and loading processes The ideal candidate will show proven experience in SQL, especially with data coding. Proficiency in project-oriented tasks will be beneficial. Sound understanding of data analysis and reporting is anticipated.

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    I'm in the market for a sophisticated billing software for my wholesale distribution business. The ideal software should have various features including, but not limited to: - Inventory Management: Track every piece of inventory effectively with alerts for low stock and expiry dates. - Customer Management: I need an easy-to-navigate interface that allows for seamless customer data entry and management. - Producing Reports and Analytics: The ability to generate detailed reports for billing, sales, GST compliance, and manufacturer assessments. - MySQL Database: Store all inventory and customer data in a MySQL database. Ideal Candidates: Freelancers should possess substantial experience in software development, particularly in creating robust billing systems. A clear understandin...

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    ## Automated / copy - paste bids will not be reviewed ## ## No company / agency please ## ## Please read the complete job description before applying ## ## Full time contract job == No project outsourcing == No task based job ## ## 8 hours job, Monday - Friday ## ## Experience : 4+ years ## ## Package: INR 65K per month ## ## Selection: Technical interviews (2 rounds) ## ## Open for freelancers from INDIA only ## JD for the Power BI/ Analyst resource MS Dynamics 365 + Power BI + SQL experience is mandatory. Only Power BI + SQL will not work. Experience in (at least 4 years) •     Building Power BI reports •     Dynamics 365 Business Central (BC) •     Working with different connectors via API for t...

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    I am in need of a proficient Microsoft Access developer. The task involves designing a query to generate reports, specifically focusing on beneficiary data. This would include information such as: - Local Government Area (LGA) - Ward - Community - Household Reference Number (HOUSEHOLDREFNO) - Caregiver Name (CAREGIVER NAME) The project necessitates reliable skills in data filtering and report generation on MS Access. Any prior experience or extensive knowledge dealing with similar data or report types will be high regarded. Though not a dealbreaker, familiarity with beneficiaries' data or related fields would be beneficial.

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    Position Overview: We are seeking a skilled Oracle Database Developer to join our team. The ideal candidate will have a strong background in database development, with expertise in Oracle technologies. You will be responsible for designing, developing, implementing, and maintaining Oracle databases to support our organization's applications and business processes. This role requires proficiency in SQL, PL/SQL, database functions, triggers, ETL processes, and database performance tuning. Key Responsibilities: • Design, develop, and implement Oracle databases to meet business requirements. • Perform database administration tasks, including installation, configuration, backup and recovery, and monitoring. • Write efficient SQL and PL/SQL code to support application deve...

    $12 / hr (Avg Bid)
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    1. We have 32 backups from the same database as .sql-files. From one table of this database we need all instances in one csv-file (with the same codepage as stated in the sql-file ). So basicly you must: - import 1st backup on your sql-server - export the table "contracts" to "csv for Excel" - repeat for all 31 other backups - put everything together in one big csv-file that is readable in Excel (pls maintain german umlaute) 2. There should be a menu-item (i.e. "Report"); clicking this asks for the date "Welches Datum?"; the current date is proposed but can be changed by choosing a date in a calendar. The report should consist of: 1. All customers that have been added at the given date. 2. All contracts that have been added at the given date...

    $32 (Avg Bid)
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    21 bids

    For my project, I require an expert well versed in Database Normalisation, specifically forms 1,2,3. The main goals of this normalisation process are to eliminate data redundancy, improve data integrity and enhance database performance for better usability in my document database. Identification of primary key(s),foreign key(s),partial dependencies,transitive dependencies Ideal candidate skills: - In-depth knowledge of data normalisation - Experience with document databases Responsibilities: - Ensuring data integrity and performance - Applying normalized data to a documented environment Take note that we're not using SQL, NoSQL or Cloud-based systems. Instead, a document database system will be utilised. Your previous experience in such an environment would be a big plus. Your ro...

    $28 (Avg Bid)
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    Archive & CMS Website Rebuild 19 hours left
    VERIFIED

    I'm in need of an expert in .Net core and the Microsoft environment to reconstruct my website. The primary objective of this project is to create an Archive & CMS type website formerly written in PHP but now requires substantial upgrades. Critical Components: - High-level user interface enhancement - Performance improvement of the site - Addition of new features Necessary Functionality: - Rehabilitation of search and filter capabilities - Introduction of content categorization and tagging - Enabling robust user management and permissions The ideal freelancer for this project should possess excellent skills and proven experience in .Net framework , CMS, and Microsoft environment. Familiarity with the design and successful execution of e-commerce, blogging, portfolio websites wo...

    $4779 (Avg Bid)
    Featured NDA
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    For my project, I require an expert well versed in Database Normalisation, specifically forms 1,2,3. The main goals of this normalisation process are to eliminate data redundancy, improve data integrity and enhance database performance for better usability in my document database. Identification of primary key(s),foreign key(s),partial dependencies,transitive dependencies Ideal candidate skills: - In-depth knowledge of data normalisation - Experience with document databases Responsibilities: - Ensuring data integrity and performance - Applying normalized data to a documented environment Take note that we're not using SQL, NoSQL or Cloud-based systems. Instead, a document database system will be utilised. Your previous experience in such an environment would be a big plus. Your ro...

    $25 (Avg Bid)
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    Task Overview: This assignment will be undertaken by recording a talk and uploading it to Canvas. MP4 file uploads are requested. The presentation should contain audio and slides/video. You do not need a cover sheet. The maximum Length of presentation should be 3 minutes. Submission Requirements: Please upload, • A video or prerecorded slide show with audio. • The slides of your presentation (as a separate file if necessary). • Do not submit zip files (submit multiple files in the same submission instead, if necessary). Module Name: Big Data and Data Mining Level of Study: MSc Budget: Drop a Suitable Offer Deadline: 14th March 2024 Software: PowerPoint/ Depends on Task. Task: Imagine you are a data scientist recently hired by the government to demonstrate the ne...

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    I'm looking for a highly skilled PHP and SQL professional to assist me in managing my database. Specifically, I need help with: - Database Management: I require someone well-versed with handling databases, ensuring that their structure and performance are optimal. - Data Structuring: My project predominantly deals with tables and requires someone with an in-depth understanding of them to ensure efficient data structuring. Ideal skills and experience for this job would include a strong command of PHP and SQL, a deep understanding of database structures, and substantial experience in database management and structuring, especially tables.

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    I am currently in need of a meticulous data entry specialist with a good sense and understanding of SQL Server. Your primary responsibilities would involve: - Organizing and processing data on our SQL Server - Keeping the database updated - Ensuring data integrity and security - Regular reporting and documentation This project requires a detail-oriented professional with excellent keyboard typing skills and profound knowledge of spreadsheets and online databases. An ideal candidate would have experience in managing SQL Server databases. Impressive organizational skills and a keen eye for detail are both a must to do well in this role. I await your proposals.

    $11 / hr (Avg Bid)
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    SQLCMD Assistance Needed -- 2 9 hours left
    VERIFIED

    I have a stored procedure on a MS SQL Server that is running a SQLCMD statement to output a CSV file in the following format where #sqlStatementHere# is the SQL string. I won't give specifics to the database structure as that part is irrelevant. sqlcmd -s, -W -Q "set nocount on; #sqlStatementHere#'" | findstr /v /c:"-" /b > '+@OutputFilePath; My problem is that some varchar fields contain special characters such as quotes and double quotes and commas. This is causing some rows of the CSV file to be invalid. I am assuming we can pass in some parameter to this SQLCMD to escape special characters or perhaps wrap the entire varchar data in double quotes. You will not be given access to the database for this project. You can easily create your own tabl...

    $66 (Avg Bid)
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    SQLCMD Assistance Needed 9 hours left
    VERIFIED

    I have a stored procedure on a MS SQL Server that is running a SQLCMD statement to output a CSV file in the following format where #sqlStatementHere# is the SQL string. I won't give specifics to the database structure as that part is irrelevant. sqlcmd -s, -W -Q "set nocount on; #sqlStatementHere#'" | findstr /v /c:"-" /b > '+@OutputFilePath; My problem is that some varchar fields contain special characters such as quotes and double quotes and commas. This is causing some rows of the CSV file to be invalid. I am assuming we can pass in some parameter to this SQLCMD to escape special characters or perhaps wrap the entire varchar data in double quotes. You will not be given access to the database for this project. You can easily create your own ...

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    I require a proficient developer conversant in Python, SQL, and SQLite to design a performant chatbot optimized for the Telegram platform. The chatbot should be orientated around two key tasks, providing it a dual functionality: - Information Retrieval: The chatbot should effectively fetch product details as per user's requests. Understanding of various product databases and experience in tying them with chatbot would be of immense value. - Data Entry: The bot should be designed to input data as required. Previous knowledge or experience of creating data entry architectures would be highly beneficial too. Proven experience in integrating databases with chatbots is a must. This project will be a marriage between databases and a search-friendly, user-oriented chatbot aimed at boosti...

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    I am at the early stages of implementing SAP FI module (SAP ECC 6.0) and require assistance with several tasks. These include: - Reporting and Analysis: This involves gathering data from various sources, compiling it for analysis purposes, and generating comprehensive reports. Familiarity with the Reporting functionality of SAP FI is necessary. - General Ledger Accounting: The freelancer will need to have a deep understanding of general ledger functionalities in SAP FI module, including managing the chart of accounts, handling postings and transactions, and period closing operations. - Accounts Payable and Receivable: The professional will oversee account determination, automatic payment program configuration, and dunning. Knowledge of accounts payable and receivable management in SAP ...

    $11 / hr (Avg Bid)
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    I am looking for a skilled developer to help create an Angular project with a .NET Core backend. Here's a set of project requirements 1. **User Authentication and Authorization**: Implement user authentication and authorization using a secure method like JWT (JSON Web Tokens). This includes login, registration, and role-based access control. 2. **RESTful API**: Develop a set of RESTful APIs using .NET Core to handle data exchange between the Angular frontend and the backend server. This includes endpoints for CRUD operations (Create, Read, Update, Delete) for various resources. 3. **Database Integration**: Integrate a database (e.g., SQL Server, MySQL, PostgreSQL) with .NET Core using Entity Framework Core or another ORM (Object-Relational Mapping) tool. Ensure proper data modelin...

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    I am looking for a skilled freelancer with profound expertise in Excel and SQL, particularly on the Mac platform. Key tasks include: - Importation of numeric data from an Excel workbook into Microsoft Azure Data Studio using Python - The data is arranged over multiple worksheets, all of which are interrelated. - Apart from the primary data importation job, the freelancer will be tasked with devising an efficient method of performing this task on a daily basis. Ideal Skills: - Strong Excel and SQL skills with experience in data migration. - Proven ability to handle related datasets spread over multiple worksheets. - Experience with automation, to maintain daily import tasks. - Familiarity with Mac operating systems. Your bid should demonstrate a clear understanding of the project a...

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    realizar un desarrollo punto de venta de servicios de asesoria y contables

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    hola tengo una empresa de soporte tecnico en sistemas, actualmente utilizo glpi para gestionar los tickets/soporte de mis clientes, me gustaria hacer todo eso desde odoo. tickets -- mesa de ayuda --- seguimiento -- inventario de tecnologia -- reportes personalizaso de tickets por cliente-

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    j'ai besoin d'un logiciel pour le suivie de stock et de consommable dans une entreprise et une parti pour faire l'inventaire de ce stock mobile ( si vous avez un code source a vendre d'un logiciel complet) Merci

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    1. La solución debe partir de una página web (las características de la misma están en un documento adjunto en este mismo requerimiento) la cual debe contener una base de datos (llenado de los datos de los clientes) para capturar de información desde formularios, los formularios serían las interfaces de los módulos descritos y la base de datos estaría en la misma página web. Para la emisión de los dashboard y métricas debe conectarse a Power Bi. 2. Igualmente, si existe alguna solución alternativa estoy abierto a escucharla. 3. Se cuentan con registros de información para simular el llenado de data. 4. Las fórmulas y gráficos ya están creadas en Power BI para el módulo de ...

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    Hola, Tengo un software en un servidor que contiene la información de nuestro catálogo de productos, tieneunas reglas de cambio de ean, stock etc y necesito cambiar unos valores

    $21 / hr (Avg Bid)
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    Establecer conexión a "postgresql"

    $27 / hr (Avg Bid)
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