Parquet, SQL, and Chunks in Python
From the Pandas cheat sheet · Import and Export · verified Aug 2026
Parquet, SQL, and Chunks
Use efficient storage and process large inputs.
python
df.to_parquet("data.parquet", index=False)
df = pd.read_parquet("data.parquet")💡 Parquet preserves types and compresses columns
📌 Parameterize dynamic SQL outside this example
🔍 Chunking limits peak memory for text files
⚠️ Database writes need transaction planning
parquetsqlchunksio
Continue with Pandas
Save the full cheat sheet or work through every related task.