Data exchange Load Load local data to the Hive table. The LOCAL keyword specifies where the files are located in…
Data Querying The select statement is used to query the data and SELECT * scans the whole table or file…
The concept of a table in Hive is very similar to the table in the relational database. Each table associates…
The Pig load/store API is aligned with Hadoop’s InputFormat and OutputFormat classes. This enables you to create new LoadFunc and…
The Pig load/store API is aligned with Hadoop’s InputFormat and OutputFormat classes. This enables you to create new LoadFunc and…
Filter functions are eval functions that return a boolean value. Filter functions can be used anywhere a Boolean expression is…
An aggregate function is an eval function that takes a bag and returns a scalar value. One interesting and useful…