In HiveQL, what does the EXPLAIN command do?
- Display Query Results
- Export Query Output
- Generate Query Statistics
- Show Query Execution Plan
In HiveQL, the EXPLAIN command is used to show the query execution plan. It provides insights into how Hive intends to execute the given query, including the sequence of tasks and operations involved. Analyzing the execution plan helps optimize queries for better performance.
Loading...
Related Quiz
- ____ is the process in Hadoop that ensures no data loss in case of a DataNode failure.
- In complex Hadoop applications, ____ is a technique used for isolating performance bottlenecks.
- Which Hadoop feature ensures data processing continuity in the event of a DataNode failure?
- The ____ feature in HDFS allows administrators to specify policies for moving and storing data blocks.
- In Hadoop, the ____ is vital for monitoring and managing network traffic and data flow.