In SQL, an identifier is a string of alphanumeric and underscore (_) characters surrounded by backtick (`). In Hive, quoted IDs are case-insensitive. For example,
Category: Apache Hive
Invoke and Execute a Script File in Hive
This article will show you how to create a batch file and use Hive shell to execute it. Steps:1) Using gedit or any other accessible
The Ecosystem Components of Hadoop
Hadoop is an open-source software program that allows you to store and analyze massive quantities of data on inexpensive hardware clusters. Another definition is –
Performance Tuning in Hive
Performance tuning is the process of ensuring that an application’s SQL queries execute as quickly as feasible. The procedures may or may not differ from
MERGE in Apache Hive
The MERGE command synchronizes two tables by adding, removing, and modifying target table rows based on the source table’s join condition. In other words, when
Locking In Apache Hive
In most RDBMSs, locking is an important element of the isolation requirement, and it helps to lock the objects affected by a transaction. The SQL
Big Data & SQL 