I will fix and optimize your sql queries expert help

5.0
5.0

Tunisia

I speak English, Arabic, French, Spanish

1 order completed

Software Engineer Specialized In BI and Big DATA and SAP HANA Expert

Technical Support Engineer with 4 years of experience troubleshooting complex production systems in enterprise environments. Specialized in root cause analysis, distributed systems, and cloud-based ar...
About this Gig

Are your SQL queries slow, broken, or just not returning the right results?

Whether you're dealing with syntax errors, inefficient JOINs, or queries that take forever to run I'll fix, rewrite, and optimize them fast.

What I handle:

  • Syntax and logic errors
  • Slow queries & performance bottlenecks
  • Complex JOINs, subqueries, CTEs, window functions
  • NULL handling and data type mismatches
  • Stored procedures, triggers, and views

Works with: MySQL · PostgreSQL · SQL Server · SAP HANA · Oracle · SQLite

How it works:

  1. Share your query, schema, or error message
  2. I diagnose and deliver a clean, working solution
  3. You get a clear explanation no black boxes

Not sure if your case fits? Message me before ordering.

Database type:

Centralized database

Distributed database

Platform:

MS SQL

MySQL

PL/SQL

Expertise:

SQL

Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
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    image-docs

    ekbel_chelbi

    TN

    Tunisia

    5

    Badreddine did an outstanding job optimizing my SQL query. He quickly identified the performance bottlenecks and provided a clean, efficient solution with a clear explanation of the improvements.

    Up to $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • E
    image-docs

    ekbel_chelbi

    TN

    Tunisia

    5

    Badreddine did an outstanding job optimizing my SQL query. He quickly identified the performance bottlenecks and provided a clean, efficient solution with a clear explanation of the improvements.

    Up to $50

    Price

    1 day

    Duration

    Helpful?
    Yes
    No