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Português
$
USD
I will design, develop and optimize your mysql and mongodb database management system
Senior Lead Software Engineer
Senior backend engineer with 10+ years building high-scale systems at Flipkart and Jio. Level 2 seller, 80+ reviews
I can help with:
• Programming projects in C++, Java, Python, Go
• Data structures,...
Nível 2
Atendeu a critérios de alto desempenho e tem um histórico comprovado de atendimento às expectativas dos clientes.
Responde rapidamente
Conhecido pela velocidade das respostas
Sobre este Serviço
Welcome,
I am a Database Management Systems(DBMS) expert. I will do any task related to Database and Projects according to the given requirements.
My Expertise:
- logical database design
- Conceptual Database Design
- SQL queries: Create/Insert/Update/alter/delete
- ER diagram to SQL Queries Conversion
- ER diagram Relational Schema/Model conversion
- Relational Schema to SQL query conversion.
- Database Normalization(1NF,2NF,3NF, BCNF)
- Constraints
- Keys
- Functions
- Triggers
- Stored Procedures
- ERD design and creation from given scenarios.
- Data Extraction Queries
- Database project with simple front end
The services which are not mentioned and are related to database you can contact me and tie to take my quote on them. I assure you quality work.
Why me , while other sellers are also offering same services?
- You will get solution with complete documentation according to requirements.
- Flexibility in Budget.
- I will also explain how I have done your work , if required.
Plataforma:
MongoDB
•
MS SQL
•
mySQL
•
Oracle
•
PostgreSQL
•
SQLite
•
SQL Server
Especialidade:
Design
•
erd
•
Normalização
•
SQL
•
NoSQL
Meu portfólio
Perguntas frequentes
Can you speed up slow queries in an existing database?
es. I read the execution plans with EXPLAIN, fix indexes, rewrite joins and subqueries, and adjust the schema where it is the real cause. You get each query's timing before and after.
What do you need from me to start?
A short description of what the system stores (customers, orders, bookings...), the queries or reports that matter most, your database engine if one is already chosen, and any existing schema or dump. If you have none of that, a list of the screens or features is enough to begin.
MySQL or MongoDB: which should I use?
It depends on your data. Relational data with strict consistency (payments, inventory, bookings) usually belongs in MySQL. Flexible, nested or fast-changing documents can suit MongoDB. I recommend one with reasons before any work starts, and sometimes it is both plus Redis.
Avaliações
7 avaliações deste Serviço
| (5) | ||
| (2) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
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Mais relevante
D dandk11
Arábia Saudita
The professional work provided by the seller is extraordinary, very professional and fast delivery. Definitely Recommended
US$ 50-US$ 100
$
2 dias
Tempo
Útil?F 
farisali484
Paquistão
Outstanding Work by an Exceptional Database Developer! I had the pleasure of working with hin on my entire database project, and I couldn't be more satisfied with the results! From start to finish, their expertise, attention to detail, and professionalism were truly remarkable. They not only understood...
US$ 200-US$ 400
$
8 semanas
Tempo
Útil?M 
maximillian123t
Reino Unido
good work done
US$ 50
$
1 dia
Tempo
Útil?N navya_manjari
Canadá
Delivery on time.Good.
US$ 100-US$ 200
$
3 dias
Tempo
Útil?F fruitsandwater
Estados Unidos
Kalpesh, knows what he’s doing and has done an amazing job! This is my second order from him. 10/10 work.
US$ 50
$
1 dia
Tempo
Útil?
Avaliações
7 avaliações deste Serviço
| (5) | ||
| (2) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
D dandk11
Arábia Saudita
The professional work provided by the seller is extraordinary, very professional and fast delivery. Definitely Recommended
US$ 50-US$ 100
$
2 dias
Tempo
Útil?F farisali484
Paquistão
Outstanding Work by an Exceptional Database Developer! I had the pleasure of working with hin on my entire database project, and I couldn't be more satisfied with the results! From start to finish, their expertise, attention to detail, and professionalism were truly remarkable. They not only understood...
US$ 200-US$ 400
$
8 semanas
Tempo
Útil?M maximillian123t
Reino Unido
good work done
US$ 50
$
1 dia
Tempo
Útil?N navya_manjari
Canadá
Delivery on time.Good.
US$ 100-US$ 200
$
3 dias
Tempo
Útil?F fruitsandwater
Estados Unidos
Kalpesh, knows what he’s doing and has done an amazing job! This is my second order from him. 10/10 work.
US$ 50
$
1 dia
Tempo
Útil?
