Have you ever used the table union operator in your projects?

The table join operator is often used when working with data in Python, for example with the pandas library. It allows you to merge two or more dataframes based on key columns, similar to SQL JOIN.

Example of usage:

import pandas as pd

df1 = pd.DataFrame({
    'id': [1, 2, 3],
    'name': ['Alice', 'Bob', 'Charlie']
})

df2 = pd.DataFrame({
    'id': [2, 3, 4],
    'age': [25, 30, 22]
})

# Merge on the 'id' column
merged = pd.merge(df1, df2, on='id', how='inner')
print(merged)

The result will contain only those records that have matching 'id's in both tables. This operator is useful for combining data from different sources for analysis or data preparation.