FAQ

This topic provides answers to some frequently asked questions about MaxCompute.

Category	FAQ
Resource packages	FAQ about resource packages
Preparations	FAQ
Connection to MaxCompute	FAQ about SDK for Java
Data migration	FAQ about Tunnel commands FAQ about Tunnel SDK
Development	SQL: FAQ about SQL Built-in functions: FAQ about built-in functions User-defined functions (UDFs): FAQ about MaxCompute Java UDFs and FAQ about MaxCompute Python UDFs PyODPS: FAQ about PyODPS MapReduce: FAQ about MaxCompute MapReduce Spark: Spark on MaxCompute FAQ
Security management	FAQ about permission management FAQ about security configurations
O&M and management	FAQ about Information Schema FAQ about other O&M issues