Results for "timestamp"
6 / 14 posts
Filter by Category
PySpark SQL Date and Timestamp Functions
🔧 Setup First (Optional for Reference) from pyspark.sql import functions as F from pyspark.sql import types as T data = df = spark.createDataFrame(data, )…
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
These functions are commonly used with groupBy() , agg() , or select() to compute things like sum, average, max, min, count, etc. PySpark functions come fr…
SQL Server Database Shrink Maintenance
Database shrink ka matlab hai database file (ya log file) ke size ko chhota karna by removing unused space . Matlab, agar tumhare DB me data delete ho gaya h...
The Complete NumPy Guide — Part 3: Advanced Patterns, Real-World Pipelines & Complete Interview Guide
Master NumPy's advanced internals — memory optimization, vectorization, Numba JIT, real-world data science pipelines, and the ultimate NumPy interview questi...
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.