SQL Wildcard Characters | How to use SQL wildcards
SQL wildcard characters are one of those simple tools that quietly make you far more effective as a data analyst. Used well, they turn rigid equality filters into flexible pattern…
How To Open Large CSV File (2GB, 4GB, 8GB, 12GB, 50GB)
Handling multi‑gigabyte CSV's - 2 GB, 4 GB, 12 GB, even 50 GB is a classic data engineering pain point. As file sizes increase, the tools and habits that work…
How to Write Multiple Case Statement in SQL
SQL Case statement is used to compare an expression within one or more logical conditions by returning a value when if-then-else logics are used. The SQL CASE statement is like…
SQL QUERY TO REDUCE REDUNANCY OF DATA
Reducing data redundancy in SQL is not just about clean queries but about delivering faster insights and avoiding the "same customer listed 50 times" mess that frustrates stakeholders. DISTINCT is…
15 Differences between Microsoft Excel vs Access
Microsoft Excel and Access are data analysis tools but differ in some criteria. Excel mainly deal with spreadsheets complex numerical data, creating charts and Access deal with database program by…
Difference between a Data Scientist and a Data Engineer
In a data centered world, we find a lot of job opportunities as a Data Scientist or Data Engineer for most data-driven organizations. Both career paths are data-driven, analytical and…
How To Get Last Day Of Previous Month In SQL
How to get last day of previous month in SQL SQL has become a powerful tool for data analysis and manipulation of data. The EOMONTH() function returns the last day of…