PostgreSQL Data Integrity Verification

$25-50 USD / hour

In Progress

Posted 5 days ago

$25-50 USD / hour

I need a careful review of the records stored in my PostgreSQL database to confirm they are complete, consistent, and reliable. The job involves running your own set of validation queries, flagging anything that looks off—duplicate rows, unexpected nulls, mismatched references, out-of-range values—and documenting what you find. Please return: • The SQL you used so I can rerun or adapt it later • A concise report summarising every issue, with counts and a few illustrative examples • Practical recommendations on how best to correct or prevent the problems you uncover If you have automated testing or data-quality tools that work with PostgreSQL, feel free to use them; just note them in the report so I understand the process.

Data Analysis

Database Administration

Project ID: 40643249

About the project

14 proposals

Remote project

Active 5 days ago

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Awarded to:

@jayantkumar314

I can review your PostgreSQL data for duplicates, nulls, broken relationships, invalid ranges, and consistency issues using targeted SQL validation queries and database-quality checks. I’ll provide all SQL used, a concise issue report with counts and examples, and practical recommendations for correcting the current problems and preventing them going forward.

$100 USD in 7 days

5.0

(48 reviews)

5.7

14 freelancers are bidding on average $45 USD/hour for this job

@umer419

Hello, I checked your project "PostgreSQL Data Integrity Verification" and already have a clear understanding of your requirements and how to deliver them efficiently. I have solid experience in MySQL, and I've successfully completed similar projects by delivering high-quality, scalable, and reliable solutions. Why choose me? * Strong expertise in MySQL * Clean, optimized, and scalable implementation * Fast communication and regular progress updates * Focused on delivering results, not just completing the task I'm ready to start immediately and would be happy to discuss the details. Best regards, Umer

$25 USD in 40 days

5.0

(8 reviews)

3.6

@bilal4240

I will perform a comprehensive data audit on your PostgreSQL database using customized SQL validation queries to identify duplicates, orphan references, null violations, and out-of-range records. I will provide all reusable diagnostic scripts, a clear summary report with error counts and examples, and actionable recommendations for constraint implementations and data cleanup workflows. Regards, Bilal

$38 USD in 40 days

5.0

(3 reviews)

3.5

@codeandcommand

I can start today and turn this around fast, likely by tomorrow. The check would cover null or missing required fields, orphaned foreign keys, duplicate rows where they shouldn't exist, and any constraint mismatches against what the schema expects. I'll write the queries, run them, and hand you a report of exactly what's incomplete or broken. The $25 to $50 range and timeline are starting points based on the post. Once I see the table sizes and how many tables are in scope, I'll confirm the real number. Let me know and I'll get started.

$50 USD in 3 days

5.0

(1 review)

0.7

@winston052790

Hello, I am writing to express my interest in the PostgreSQL Data Integrity Verification project. With my strong background in SQL, MySQL, and PostgreSQL, as well as experience in Database Administration and Data Analysis, I am confident in my ability to carefully review your database records for completeness and reliability. I have a keen eye for detail and extensive experience in database management, making me well-equipped to identify and address any issues in your PostgreSQL database. I am proficient in running validation queries and documenting findings, and I am committed to providing practical recommendations for correction and prevention. I look forward to the opportunity to contribute to your project. Thank you. Sincerely, Winston

$38 USD in 40 days

0.0

(0 reviews)

0.0

@adnanmalik756

Hi, I can help with PostgreSQL Data Integrity Verification. My relevant stack for this is SQL, MySQL. I will clarify scope first, implement cleanly, and keep you updated until delivery. Thanks, Adnan Hussain

$25 USD in 7 days

0.0

(0 reviews)

0.0

@olehh6

Hello, I will perform a structured PostgreSQL data-quality audit to identify completeness, consistency, integrity, and reliability issues without modifying production data. The main challenges are detecting hidden duplicates, unexpected NULL values, broken relationships, invalid ranges, and inconsistencies that may not be covered by existing constraints. I will address these by reviewing the schema and relationships first, then creating targeted validation queries for each table and business rule. The audit will cover duplicate records, missing required values, orphaned foreign keys, inconsistent references, invalid data types or ranges, suspicious outliers, and cross-table inconsistencies. Where useful, I will also use automated PostgreSQL data-quality checks and clearly document the tools and methodology. I will provide the complete SQL validation suite, a concise report containing issue counts and representative examples, and practical recommendations for correction, constraints, indexes, validation rules, and ongoing monitoring. Could you provide the database schema or a sanitized database dump so I can understand the relationships and define validation rules accurately?

$35 USD in 40 days