Data & Database Workflows (page 16 of 26)
PostgreSQL, SQL, CSV, JSON, Excel, PDF, and conversion pipelines — practical workflows for working with structured data safely.
- SQL vs Google Sheets
A practical guide to SQL vs Google Sheets covering databases, spreadsheet collaboration, scale, reporting workflows, connectors, automation, limits, and when analysts should use one, the other, or both together.
- SQL vs NoSQL: Which Database Should You Use
A practical guide to SQL vs NoSQL, covering relational modeling, document databases, scaling tradeoffs, performance, flexibility, reporting, and the real questions technical teams should ask before choosing a database.
- SQL WHERE Clause Guide
A practical guide to the SQL WHERE clause with clear examples for filtering rows, combining conditions, handling NULL values, matching patterns, and writing more accurate SQL queries.
- SQL Window Functions Explained
A practical guide to SQL window functions with clear examples for ranking, running totals, per-group comparisons, moving averages, LAG, LEAD, and real analytical query patterns.
- Star Schema For Power BI
A practical guide to star schema in Power BI covering fact tables, dimension tables, relationships, filtering, model design, performance benefits, and common mistakes to avoid.
- Sum vs SUMX In DAX
A practical guide to SUM vs SUMX in DAX, covering aggregation, iterators, row-by-row evaluation, performance tradeoffs, business-reporting examples, and common Power BI mistakes.
- SUMIF vs SUMIFS
A practical guide to SUMIF vs SUMIFS covering one-condition and multi-condition sums, formula syntax, common mistakes, business examples, and how to choose the right function for reporting work.
- TEXTJOIN Function Guide
A practical guide to the TEXTJOIN function in Excel covering syntax, delimiters, ignoring blanks, combining names and fields, reporting examples, common mistakes, and useful text-building workflows.
- Unique Function In Excel
A practical guide to the UNIQUE function in Excel covering syntax, distinct values, unique rows, dynamic lists, reporting workflows, duplicate handling, and real spreadsheet use cases.
- VLOOKUP In Google Sheets
A practical guide to VLOOKUP in Google Sheets covering syntax, exact matches, common business examples, error handling, limitations, and how to use VLOOKUP for shared spreadsheet analysis.