String Concatenation with concat()

How do we combine first and last name columns with a space separator into a full name field?

Intermediate⏱ 2 Minutes⭐ 330 XP

🤔 THE QUESTION

How do we combine first and last name columns with a space separator into a full name field?

💡 WHAT IS IT?

concat() concatenates multiple Column expressions and literal strings into a single unified string Column.

🎯 WHAT IS IT USED FOR?

Constructing full names, generating surrogate composite keys, and formatting address lines.

💻 EXAMPLE

from pyspark.sql.functions import col, concat, lit

df = df.withColumn(
    "full_name",
    concat(col("first_name"), lit(" "), col("last_name"))
)

Practice typing production-grade PySpark code for String Concatenation with concat().