Throughout the year, “Big Data & SQL” published a number of articles about Apache Impala. It covers the majority of its features and functions. It’s
Category: Cloudera Impala
ROLES and USERS Metadata In Apache Impala
In this post, we will be discussing the most frequently used admin commands specifically the SHOW commands that help in retrieving metadata of the roles
SHOW CREATE Statement in Apache Impala
In this post, we will be discussing the most frequently used admin commands specifically the SHOW commands. SHOW is a command that displays information about
Apache Impala – Sub Queries
A subquery is a query that is included within another query statement. Subqueries, often known as sub-SELECTs or nested SELECTs, are a type of query.
Apache Impala – Limitations
Apache Impala is an open source massively parallel SQL query engine for data stored in a Hadoop-based cluster. Impala delivers Hadoop scalable parallel database technology,
Can we use INVALIDATE METADATA in Impala?
As per the documentation, the INVALIDATE METADATA command marks one or all tables’ metadata as stale. The next time the Impala service runs a query
Big Data & SQL 