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I will design database schema, erd

Egypt

I speak English, Arabic

CS Student

"Certified Data Engineer | SQL & Python Expert | Database Specialist Hi! I'm Ahmed, a Computer Science student and certified Data Engineer from ITI (162-hour intensive program). With hands-on experien...
About this Gig

What You'll Get in This Gig:

  • Professional ERD Diagrams: Clear Entity-Relationship Diagrams (using Draw.io or similar) to visualize entities, attributes, and relationships (cardinality, keys).
  • Database Schema Design: Relational tables with primary/foreign keys, constraints, indexes, and best practices.

Custom SQL Queries: Optimized queries including:

  • Basic SELECT/FILTER
  • Complex JOINs (INNER, LEFT, RIGHT, FULL)
  • Subqueries, CTEs, Window Functions (RANK, ROW_NUMBER)
  • Aggregations (GROUP BY, HAVING, COUNT/SUM/AVG)
  • Stored Procedures/Views if required

Full Implementation: Ready-to-run SQL scripts for MySQL or Oracle.

Query Optimization & Troubleshooting: Tips for performance, indexing, and fixing slow queries.

Delivered Files: PDF ERD, editable diagram files, SQL scripts, and documentation.

Why Choose Me?

  • Certified in Data Engineering (ITI), Python Essentials 1 (Cisco Networking Academy), and multiple database/network courses.
  • Real-world experience at REDCON Construction with Oracle SQL reporting and data cleaning.
  • Fast delivery, clear English/Arabic communication, unlimited revisions until 100% satisfied.

Database type:

Graph database

Key-value database

Platform:

MySQL

Oracle

PL/SQL

SQL Server

Expertise:

Design

ERD

SQL

Query optimization