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A data mart is a subset of a larger data warehouse that is designed to serve a specific business unit or department.
Contains a subset of data from a larger data warehouse
Designed to serve a specific business unit or department
Provides a more focused view of data for analysis
Can be created faster and at a lower cost than a full data warehouse
Examples: Sales data mart, Marketing data mart
OLTP is for transaction processing while OLAP is for data analysis.
OLTP is used for day-to-day operations and focuses on processing transactions in real-time.
OLAP is used for data analysis and focuses on querying large amounts of data to gain insights.
OLTP databases are normalized while OLAP databases are denormalized.
OLTP databases are optimized for write operations while OLAP databases are optimized for read operatio...
As a data analyst, I can contribute to the Bank's business by providing insights and recommendations based on data analysis.
I can help identify patterns and trends in customer behavior to improve marketing strategies.
I can analyze financial data to identify areas for cost savings and revenue growth.
I can develop predictive models to forecast future trends and inform business decisions.
I can create dashboards and report...
Data security can be maintained by implementing access controls, encryption, regular backups, and monitoring.
Implement access controls to restrict unauthorized access to data
Use encryption to protect data in transit and at rest
Regularly backup data to prevent loss in case of a security breach
Monitor data access and usage to detect and prevent unauthorized activity
Train employees on data security best practices to preve
Data analytics in banking can be used for fraud detection, customer segmentation, risk assessment, and personalized marketing.
Fraud detection: Analyzing transaction patterns to identify suspicious activities and prevent fraudulent transactions.
Customer segmentation: Analyzing customer data to group customers based on their behavior, preferences, and demographics for targeted marketing campaigns.
Risk assessment: Analyzi...
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