Creating Rolling Sums with Dates in R: A Step-by-Step Guide to Calculating Moving Averages and Sums with Date Indices

Extracting Date Information from Oracle SQL Filenames Using Regular Expressions

How to Break Down Date Periods in SQL Server Using the Tally Table Technique

Extracting Visited Items from a Date-Stamped Visit Records DataFrame: A Step-by-Step Guide

Working with Dates in DataFrames: A Practical Guide to Creating Columns Based on Date

Oracle SQL Filter for SYSDATE: Accepting Negative and Positive Days from Current Date

Calculating Total Hours Streamed for Each User and Percentage of Call of Duty Streaming Hours

Using Row Numbers to Simplify Data Manipulation and Analysis in T-SQL

Understanding Date Format Conversions in Oracle SQL

TypeError: type unhashable: 'numpy.ndarray' when using numpy arrays as keys in dictionaries or sets in Pandas DataFrames with Date Columns Conversion