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Fiverr Pro
English
$
USD
I will design, fix or optimize your mysql database, queries, and more
About this Gig
Do you have a slow database, broken queries?
I can help you design, fix, or optimize your MySQL schema, queries
My expertise covers:
- Database schema design and normalization
- Query optimization (JOINs, indexes, subqueries)
- Transactions, lazy vs eager loading
- Migrations, schema changes, database refactoring
- Connection pooling and performance tuning
- Data validation and consistency
- Backups and data integrity
What I will do for you:
- Review your current DB schema + queries
- Fix or refactor inefficient queries
- Redesign tables & relationships (if needed)
- Add indexes, optimize performance
- Provide database documentation (ER diagrams)
- Write clean SQL or Java code for ORM
Why me?
- Clean, efficient DB designs
- Experience with JPA/Hibernate real-world projects
- Performance-first approach
- Clear explanations (if needed)
What I need from you to start:
- Current DB schema or SQL dump
- Entity classes (if using JPA/Hibernate)
- Examples of problematic queries
- Description of performance problems or bugs
If you're not sure where the performance issue is, just message me well figure it out together.
Platform:
MongoDB
•
MySQL
•
PostgreSQL
•
SQLite
Expertise:
Data structure
•
Design
•
Normalization
•
SQL
FAQ
What do you need to begin?
Your SQL dump, database access (if available), your schema/ER diagram, and a description of the issue or improvement you want.
Can you optimize slow queries?
Yes. I analyze indexing, joins, query structure, normalization, execution plans, and overall database performance.
Do you work with complex SQL relationships?
Yes—foreign keys, many-to-many tables, constraints, triggers, relationships, and normalization best practices.
My project uses Spring Boot or another backend. Can you still work on the database?
Of course. I can help regardless of the backend. All I need is your schema or a connection to the database.
Can you design a full database from scratch?
Yes. I can create the conceptual model, ER diagram, relational schema, and all SQL scripts needed.
Can you refactor or migrate my existing database safely?
Yes. I perform clean and safe migrations with backups, data checks, and zero-loss strategies.
Do you provide documentation?
Yes—ER diagrams, SQL scripts, schema documentation, optimization notes, or migration documentation.
Reviews
1 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
A ana201220
Ecuador
super! me ayudó con un trabajo en super poco tiempo y lo hizo de manera muy profesional! super atento a lo que necesitaba!
Up to $50
Price
2 days
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A ana201220
Ecuador
super! me ayudó con un trabajo en super poco tiempo y lo hizo de manera muy profesional! super atento a lo que necesitaba!
Up to $50
Price
2 days
Duration
Helpful?
