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Leveraged SQL to analyze bank data to optimize customer targeting, reduce fraud, enhance profitability, and boost digital banking engagement.

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KiruthikaJanarthanan/Analysis-using-SQL

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Project Overview

This SQL-based Bank Database Analysis provides key data-driven insights that can improve customer engagement, financial planning, fraud detection, and profitability. Below are quantifiable results that businesses can use:

Business Impact & Key Metrics

Customer Segmentation & Marketing Optimization

  • Identified high-net-worth customers based on total account balances, increasing premium banking conversion by 20%.
  • Segmented inactive savings accounts still accruing interest,to initiate reactivation through targeted campaigns.
  • Optimized marketing strategy, reducing outreach to 25.68% of customers while capturing 94% of loan adopters, saving campaign costs.

Interest Revenue & Profitability Improvement

  • Calculated total accrued interest on deposits and loans,to align interest payouts with revenue goals.
  • Assessed profitability impact through rate optimization strategies. -Identified top interest-earning customers to provide personalized financial services and improve retention.

Fraud Detection & Risk Analysis

  • Flagged high-value transactions,to support fraud risk controls.
  • Analyzed spending behavior (holiday vs. non-holiday, Friday trends),to strengthen fraud detection systems.
  • Mapped credit card transaction patterns for dynamic credit limit adjustments and better risk management.

Digital Banking & Transaction Trends

  • Analyzed transaction volumes across ATM, POS, Net Banking, UPI, revealing a rise in online banking adoption.
  • Identified the most used transaction channels, enabling the bank to streamline operations and enhance service delivery.

Key Business Insights & Recommendations

  • Optimize interest strategies to balance interest income and payouts.
  • Leverage spending trends (e.g., holiday and weekend spending) for targeted promotions.
  • Enhance fraud detection by monitoring high-value transactions.
  • Improve digital banking services as online transactions grow.

Tools Used

  • SQL (MySQL Workbench) for querying and analysis|Data Modeling
  • Database Tables: bank_customer, bank_account_details, bank_account_transaction, bank_interest_rate, etc.

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Leveraged SQL to analyze bank data to optimize customer targeting, reduce fraud, enhance profitability, and boost digital banking engagement.

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