Data & Database Workflows (page 21 of 40)
PostgreSQL, SQL, CSV, JSON, Excel, PDF, and conversion pipelines — practical workflows for working with structured data safely.
- How to Find and Remove Duplicates in SQL
A detailed guide to finding and removing duplicate rows in SQL, including safe workflows, duplicate detection queries, ROW_NUMBER cleanup patterns, and ways to prevent duplicates from coming back.
- How to Find Slow SQL Queries
A detailed guide to finding slow SQL queries, including query logs, execution plans, pg_stat_statements, Query Store, slow query logs, lock analysis, and how to identify the queries that hurt performance most.
- How To Highlight Duplicates In Google Sheets
A practical guide to highlighting duplicates in Google Sheets covering conditional formatting, COUNTIF formulas, duplicate checks, common mistakes, and real reporting and cleanup workflows.
- How To Merge Tables In Power Query
A practical guide to merging tables in Power Query with the right join types, keys, and cleanup steps.
- How To Remove Duplicates In Excel
A practical guide to removing duplicates in Excel covering the Remove Duplicates tool, UNIQUE function, duplicate checking workflows, common mistakes, and real spreadsheet cleanup patterns.
- How To Remove Duplicates In Google Sheets
A practical guide to removing duplicates in Google Sheets covering built-in duplicate removal, UNIQUE-based workflows, cleanup checks, common mistakes, and real spreadsheet reporting use cases.
- How To Remove Null Values In Power Query
A practical guide to filtering, replacing, and handling null values in Power Query without damaging downstream analysis.
- How To Split Text Into Columns In Google Sheets
A practical guide to splitting text into columns in Google Sheets using Split text to columns, the SPLIT function, delimiters, cleanup techniques, and structured reporting workflows.
- How To Unpivot Data In Power Query
How to unpivot wide spreadsheet data in Power Query for cleaner analysis, dashboards, and reporting.
- How To Write Your First DAX Measure
A practical beginner guide to writing your first DAX measure, covering explicit versus implicit measures, the formula bar, simple examples, context, common mistakes, and how to test measures in Power BI.