Creating SQL queries - Developing queries that retrieve the necessary data from source systems for reporting purposes.
Data modelling - Preparing data models optimized for business analysis, facilitating the easy combination of different datasets for generating reports and dashboards.
Report and dashboard design - Designing the structure of analyses, including selecting appropriate forms of data visualization, to present data in a user-friendly manner for end-users.
Performance optimization - Optimizing report performance through database indexing and query optimization. Verifying analyses for speed of generation and data loading to ensure smooth operation even with large datasets and user numbers.