A query plan (or query execution plan) is a set of actions that a SQL relational database management system uses to obtain data. The relational
Category: Apache Impala
Literals in Apache Impala
The literal values of each of the Impala data types have a matching notation. In SQL statements, such as the SELECT list or WHERE clause
DESC Statement in Apache Hive and Impala
Similar to many RDBMSs, DESC Statement displays information about a table, such as column names and data types. This can be used to see the
INSERT DATA – In Apache Impala
Inserting rows into a table can happen in a variety of ways. Either supplying column values by column position, modifying column locations based on data/values
Show Tables with Search Pattern – Impala
We frequently use the SHOW TABLES command to display a list of all the tables in the current database. If the list is too long,
Change Column Position – Apache Impala & Apache Hive
Previous articles described how to insert columns between existing table columns in various RDBMSs. Currently, Apache Impala does not support this. You can, however, change
Big Data & SQL 