I am OCP Oracle database administrator, expert in troubleshooting oracle database problems, performance issues and have a strong experience in oracle SQL, PL/SQL. I am also certified professional for oracle apex having a strong knowledge in building application using oracle apex jasper reports

Hello I am Imran Hussain Heron. I have a total of 13 years of experience with Oracle, MySQL, and MSSQL databases. My significant experience includes: Oracle Database: Implementation and management of Oracle Database 10g, 11g R1, 11g R2, 12c, and 19c Database Backup and Recovery: Expert in RMAN and Oracle import/export High Availability Solutions: Real Application Clusters (RAC), Physical Standby (Data Guard), and Logical Standby Middleware and Infrastructure: Oracle WebLogic, Oracle Grid Infrastructure (11g-19c), and Fusion Middleware Security: Oracle Audit Vault and Database Firewall, Oracle & MSSQL Transparent Data Encryption Performance Tuning: Oracle & MSSQL performance tuning Database Upgradation & Migration: Oracle and MSSQL database upgradation and migration Disaster Recovery and High Availability: MSSQL AlwaysOn Availability Groups, Replication, Log Shipping, Mirroring, and Clustering MySQL Administration: Administration and DR implementation Additional Expertise: Oracle GoldenGate, Oracle Gateway Thank you for visiting my portfolio. Best regards, Imran Hussain Heron

🚀 Expert Oracle APEX Developer with a strong track record of delivering high-performance applications, modernizing legacy Oracle systems, and integrating third-party APIs. I specialize in full-cycle Oracle APEX development, from designing custom dashboards to building scalable RESTful APIs and writing complex PL/SQL procedures. ✅ My Expertise: ✔ Oracle APEX Development – Full-stack development for custom enterprise applications ✔ Oracle Forms to APEX Migration – Seamless migration from Oracle 6i, 11g, 12c ✔ PL/SQL Development – Writing optimized stored procedures, functions & triggers ✔ APEX API Integration – Expertise in ZATCA KSA E-Invoicing, third-party API integrations ✔ Custom APEX Dashboards – Data-driven dashboards with interactive UI ✔ Custom Themes & UI Design – Tailored APEX themes for enhanced UX ✔ AJAX Callbacks & JavaScript – Advanced APEX client-side scripting & server-side validations ✔ Oracle APEX Collections – Efficient session-based data handling ✔ Troubleshooting & Optimization – Performance tuning & debugging existing APEX apps I help businesses modernize, automate, and optimize their Oracle-based applications. If you're looking for an Oracle APEX expert to develop, migrate, or troubleshoot your project, let's connect! 📩 Contact me today to discuss how I can add value to your project.

I am a database / software engineer with 25 years of experience in SQL databases. I have extensive experience in designing and developing large databases from ground up, and I also have experience in remodeling and optimizing existing databases. I gained my experience working with nationwide databases. The system I am most proud of is the processing of healthcare records, which I designed and developed in 1998. It is still running on the same principals, consisting of 12.000+ million records, growing ~42 million monthly. In the last 25 years it was migrated from Oracle 7.3 to 8i, 10g, 11g and 12c, which provided a significant experience in migration. I gained additional experience in remodeling and optimizing while working again on healthcare data in 2014. On this project the record count is much smaller, ~400.000 monthly, but the algorithm is based on a 1200+ pages legislation. During the project I was able to reduce response time from minutes to seconds, often reaching a 60-fold reduction (e.g. 40 minutes down to 40 seconds). I also have 20+ years of experience with MySQL databases in a mission-critical production environment. I designed, developed and operated a PHP/MySQL based system in 5 different locations on Linux servers for 15 years. Lately I am working on Machine Learning projects using Python, Pandas, Numpy, Scikit-learn, OpenAI, Mistral.AI. etc. Looking forward to work together, from tutoring to full system development.

🏆 EXPERT VETTED Data Visualization, Data Engineering, Data Analytics Expert - ⭐️ The top 0.01% of talent on Upwork 🏆 ⭐️ 500+ happy clients with 20K+ hours clocked ⭐️ $500K+ earned I turn your data into your most valuable insights! 🚀 I am a 15-year experienced Data Guru in Data Analytics, Data Engineering, and Data Visualisation! I helped clients like Boston Consulting (BCG), Netflix, Google, Pepsi, H&M, AirBnB, etc. to uplift their profits and reduce their exorbitant costs through clear actionable insights and interactive visualisations using the following tools & languages: > SQL - MySQL, PostgreSQL, MSSQL, Supabase, Oracle DB, etc. > Data Warehouse - Google BigQuery, Snowflake, Redshift, Azure DB, etc. > Data Visualisation - Tableau, Power BI (DAX & Power Query), Metabase, Looker, Looker Studio, Amazon Quicksight > Data Engineering - Data Modelling with Python, DBT(data build tool), Airflow, Fivetran, Hevo Data, etc > Data Reporting - Google Analytics, GA4, Jet Admin, Superset, Redash, Retool, Domo, Klipfolio, Periscope, Grafana, Sisense, AirTable, Groww, etc. Growth Metrics. Shopify Reports, E-commerce Reports, etc. > Cloud - Amazon Web Services (AWS), Google Cloud Platform (GCP), Azure Cloud Happy to understand your requirements and get started! Let's connect! #BusinessIntelligence #DataAnalytics #DataVisualization #Tableau #PowerBI #QlikView #Klipfolio #Domo #GoogleDataStudio #Sisense #AWSQuickSight #Looker #Strategy #SAPBusinessObjects #IBMCloudPak #ETL #DataEngineering #DataScience #SQL #Snowflake #Oracle #BigData #DataMining #MachineLearning #BusinessReporting #DashboardDesign #DataStorytelling #PredictiveAnalytics #DataWarehouse #DataInsights #VisualizationExpert #Analytics #SelfServiceBI #DataReporting #DataDriven #Visualization #KPI #Metrics #PerformanceManagement #AnalyticsConsultant #DataQuality #DataManagement #TableauExpert #PowerBICertified #DataAnalysis #DataStrategy #DataGovernance #CloudAnalytics #BusinessAnalysis #BIConsultant #Tableau #TableauCertified #Snowflake #Klipfolio #QlikView #Domo #GoogleDataStudio #Sisense #AWSQuickSight #AzureDataFactory #AWSGlue #Integromat #Knime #SQLServer #Oracle #Hadoop #MongoDB #PostgreSQL #DataVisualization

As an Oracle APEX developer with several years of experience, I specialize SQL, PL/SQL, and optimization. My skills extend to working with Oracle and MySQL databases and integrating APIs with Oracle APEX. In addition, I am familiar with other programming languages like Java, C/C++, PHP, JavaScript, HTML, CSS, jQuery, and AJAX. I have experience working with Amazon AWS, including EC2 Cloud, RDS, S3, Cognito, Route53, and Lambda. I am also knowledgeable in database design and monitoring, and routinely perform maintenance tasks to ensure optimal performance. I have also integrated various APIs with Oracle and Oracle Apex, such as Twilio, Zoom, GoToMeeting, Instamed, and Heartland. I have created custom plugins for oracle apex to implement new features and monitored databases from day-to-day. I have collaborated with teams of developers and temporary resources to deliver quality software products that meet client requirements and deadlines. Additionally, I worked on Oracle Forms to Oracle APEX conversion project, where I worked on creating Oracle Apex aplication and replicating the pages and forms and triggers and actions by analyzing the xml exports from Oracle Forms applications and manually replicating them (or creating Identical/as similar as possible - pages, reports, forms and grids) in Oracle APEX Currently, I am working on an international admissions solution for institutions in the US to manage the admission of international students, as well as an electronic health records project that provides a comprehensive solution for various healthcare requirements. Through these experiences, I have developed strong communication and teamwork skills that allow me to work effectively with individuals from diverse backgrounds and skill sets.

Businesses running outdated Oracle Forms systems lose time, money, and competitive edge. I help companies migrate to modern Oracle APEX applications — faster load times, cleaner UI, and zero data loss. With 5+ years of hands-on experience and 900+ hours delivered on Upwork, I've built and deployed enterprise-grade systems across finance, healthcare, logistics, and ERP sectors. What I deliver for my clients: ⚙️ Oracle APEX Development & Oracle Forms Migration ⚙️ PL/SQL Programming, Tuning & Optimization ⚙️ Jasper Reports Design & Automation ⚙️ REST API & Web Services Integration ⚙️ Oracle Fusion Cloud Integration ⚙️ ERP, CRM & Custom Web Application Development Recent systems I've built: ✅ ZATCA-Compliant Invoicing System (Saudi tax regulation ready) ✅ CRM & Financial Management Modules ✅ Inventory, Procurement & Capital Management Platforms ✅ Hospital & Lease Management Systems Every solution I build is scalable, secure, and tailored to your business — not copy-pasted templates. I work with clear timelines, regular updates, and clean code you can maintain long-term. 📩 Message me with your project details and I'll respond within a few hours.

Is manual data entry and broken reporting slowing your business down? I fix that. I am a BI Engineer and Data Automation specialist with a degree in Computer Science and over 5 years of experience turning messy, manual data tracking into automated, high-performing visual dashboards. Whether your team is wasting hours on repetitive Excel tasks or your database queries are lagging, I engineer the backend pipelines and frontend reports to give you real-time visibility. Core Architecture & Expertise: Business Intelligence: Microsoft Power BI, Tableau, IBM Cognos Analytics, SSRS Data Engineering & ETL: Talend, Informatica, SSIS, Data Modeling Database Optimization: Advanced SQL Programming, Stored Procedures, Dataset Normalization My goal is simple: migrate your manual workflows into seamless, automated data pipelines so you can make decisions based on accurate data, instantly. Let’s connect to discuss your data infrastructure. Click the "Invite" button to get started! Love to hear from you! Hassan

I'm an Expert Software developer with 11+ years of experience developing desktop software, websites, and ERPs in ASP.NET, VB.NET, C#, VB6, and ASP.net MVC technologies. During my career, I helped many small, medium, and enterprise organizations to develop ERPs, Software that helps them to make business more productive. Previously I have developed applications like Inventory Management, ERP, CRM, Insurance Management, Client Management Application, POS Applications with Offline & Online, School Management systems, Library Management, Payroll Software, Retail Management, Retail POS systems, Task Management systems, Travel Agent Management Software, Farming ERP, Retail ERP, Lead Management, Insurance Claim Management, Cloud Storage Applications, and many more custom software. * Technical Proficiency: - .Net, including C#, VB.NET, ASP.NET (MVC, Web Forms, and Winforms), Web API 2, LINQ,.Net Windows Forms, WPF. - Anything SQL Server and T-SQL, including writing stored procedures, triggers, functions, jobs, indexes, full-text search, query optimization, database design, setup, backup, import, export, administration, and maintenance. - Other databases like Oracle, MySQL PostgreSQL, SQLite, MS Access - Angular, ReactJS, KnockoutJS, KendoUI, JavaScript, jQuery, Bootstrap, Ajax - CSS, HTML5, Responsive Design - Regular Expressions in general and its implementation in .Net or JavaScript - VBA, VB6 - Crystal Reports, Active Reports - Source controls, git, GitHub, BitBucket, TFS, SVN (Subversion), Source Safe - Third-party Controls: DevExpress, Rad Controls, DotnetBar Controls & Metro Framework Experience in various payment gateway integrations like Stripe, Stripe SCA, Authorize.Net, PP, and First Data. I have experience in repositories like GitHub and BitBucket. As a Project management tool, I have used Jira, Asana, and Basecamp. Further, I have experience working with TFS & VSS. Thank you for taking the time to review my profile

Hi Everybody, As a Database Administrator & SQL Developer with years of professional experience in managing enterprise databases across Oracle, PostgreSQL, MySQL, and SQL Server platforms. I specialize in database administration, performance tuning, query optimization, and custom SQL development to deliver high-performing, secure, and scalable database solutions. My expertise spans end-to-end database management — from installation and configuration to writing complex queries and ensuring high availability. I am responsible for providing 1st Level and 2nd Level Technical Support as an Database Administrator on windows and Linux, RHEL, Solaris Operating system environments. I assist in critical technical areas to ensure smooth in-house ERP operations and Managed Services for the company. Key Skills & Services Expert in Database Administration, Installation, and Configuration across Oracle, PostgreSQL, MySQL, and SQL Server. Proficient in SQL Query Development, Optimization, and Performance Tuning. Skilled in creating Stored Procedures, Functions, Triggers, and ETL processes. Hands-on experience with Backup & Recovery solutions like RMAN, pgBackRest, and MySQL Dump. Specialized in High Availability & Replication setups (Data Guard, Streaming Replication, Galera Cluster). Capable of Database Migrations, Upgrades, and Cross-Platform Synchronization. Expertise in Cloud Database Management on AWS RDS and Digital Ocean. Troubleshoots and resolves database performance and security issues. Implements Disaster Recovery Plans and Automation Scripts. Provides User Access Management and Database Security Auditing. Experienced System Administrator skilled in Windows & Ubuntu, virtualization, and cloud services. Proficient in VirtualBox, Tailscale VPN, firewalls, and Docker for secure and efficient system setups. Expertise in VPS, web server management, and containerization for scalable infrastructure. Strong background in security, monitoring, and developer access management in hybrid environments. Passionate about system optimization, automation, and troubleshooting to ensure seamless operations. ✔ Client-Centric Approach with On-Time Delivery ✔ Expertise in Multi-Platform Database Administration ✔ 100% Confidentiality & Security Commitment