thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Data & Analytics · Advanced

Apache ORC

Optimized Row Columnar: a columnar file format from the Hive ecosystem with lightweight indexes, compression and ACID support in Hive.

Definition

ORC offers similar benefits to Parquet, including stripes with statistics and predicate pushdown. It is common in Hive and EMR environments.

Exam tip

Parquet and ORC are both columnar; Avro and CSV are row-based.

Related terms