Extracting Multiple Rows Based on Matching Year Plus 2 Previous Years from Another DataFrame

Combining a List of Names with a Pandas DataFrame: A Comprehensive Guide to Merging Data Sets

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Mastering Oracle SQL Merge Statement with Conditions for Data Consolidation and Update

Understanding SQL UNION and MERGE: How to Combine Datasets Efficiently

Mastering Merges in Pandas: A Comprehensive Guide to Data Combination and Joining

Merging Dataframes Based on Common Column Using Pandas Merge Function

Creating DataFrames of Combinations Using Cross Joins and Cartesian Products

Decoding a Dataset: Understanding Numerical Values and Unlocking Insights

Assigning Flags to Open and Closed Transactions with SQL and LAG Functionality