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I will design relational databases and create optimized erd schemas
SQL and Power BI Expert
Microsoft Certified Power BI Analyst & SQL Expert (10+ Yrs Experience)
I transform messy data into high-performance databases and clean, interactive dashboards that drive smart business decisions. M...
About this Gig
Building a software app or data analytics platform?
A messy, unoptimized data structure will slow down your systems, cause data redundancy, and trigger costly database bugs.Get your data infrastructure engineered properly from the start.
As a Senior Database Architect with 10+ years of corporate experience, I design highly scalable, production-grade relational databases and data warehouse systems. I translate your complex business workflows into clean, normalized data schemas built to handle millions of rows seamlessly.
Supported Environments:
SQL Server | PostgreSQL | MySQL | Oracle (PL/SQL) | MariaDB | Amazon Redshift | Snowflake
️Core Architectural Services:
Structural Modeling: Designing highly detailed Conceptual, Logical, and Physical ERD diagrams.
Schema Engineering: Applying strict 3NF normalization to completely eliminate data redundancy.
Data Warehousing: Designing optimized Star and Snowflake schemas for analytical BI reports.
Implementation Support: Providing fully documented SQL DDL scripts for instant database deployment.
Please click the "Contact Me" button to share your business logic and application rules before ordering!
Best regards,
Nisar
Database type:
Relational database
Platform:
MS SQL
•
MySQL
•
Oracle
•
PostgreSQL
Expertise:
Data warehouse
•
Design
•
ERD
•
Normalization
Other Databases Services I Offer
FAQ
What information do you need from me to start designing my database?
Please provide a summary of your application or business workflow. I need to know what features your system has, what entities you need to track (e.g., users, products, transactions), and the core business logic rules that connect them (e.g., "a single user can have multiple subscription profiles").
What tools do you use to create the Entity Relationship Diagrams (ERDs)?
I create professional, industry-standard ERD layouts using advanced design tools like Lucidchart, draw.io, or Erwin Data Modeler. Upon project delivery, you will receive high-resolution, pixel-perfect image files (PNG/PDF) along with the fully editable source file of the diagram.
What is the difference between a Relational DB design and a Dimensional Model?
Relational design focuses on transaction speed (OLTP) for live apps and uses strict normalization (1NF, 2NF, 3NF) to eliminate data redundancy. Dimensional modeling (Star/Snowflake schemas) rearranges data into Fact and Dimension tables to optimize performance for heavy analytical reporting tools li
Will you deliver the actual code required to build the database?
Yes! Along with your visual ERD schema design, I deliver the clean, structured SQL Data Definition Language (DDL) scripts. You can run these scripts directly in your target database environment (SQL Server, MySQL, Postgres, etc.) to instantly generate all your tables, columns, and foreign key constr
Can you review and optimize an existing database schema that is running slow?
Absolutely. If your current application is facing lag or data sync issues, I can audit your database schema. I will identify structural design flaws, fix improper relationships, recommend normalization adjustments, and map out a new, highly optimized schema to improve data integrity and performance.
