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Dynamic Date Series in SQL Server (Financial Year + Calendar Year Handling)
When working with reports, analytics, or dashboards in SQL Server, one common requirement is generating a continuous date series between two dates — especial...
Advanced Pandas: Performance, Time Series, ML Pipelines & Interview Questions (Part 3)
Master advanced Pandas — MultiIndex, time series resampling, rolling windows, memory optimization, Pandas 2.x features, ML pipelines, and 30+ interview Q&A.
PySpark Built-in Functions
...to compute things like sum, average, max, min, count, etc. PySpark functions come fr…
Pandas Data Manipulation: The Complete Guide (Part 2 — Indexing, GroupBy, Merge & Reshape)
Master Pandas data manipulation — loc/iloc, boolean filtering, GroupBy, merge/join, pivot tables, melt, string ops, and apply functions with real examples.
SQL Server User-Defined Functions (UDF)
SQL Server ke saare User-Defined Functions — Scalar, Inline TVF, MSTVF — ko ek jagah samjho. Real examples, performance tips, aur interview questions ke saath.
Date Time in Power BI
In Power BI and DAX, the CALENDAR() and CALENDARAUTO() functions are used to generate a table of dates. These functions are particularly useful for creatin…