Qlik Selection Language
The Qlik Selection Language (QSL) is an essential part of the Qlik Big Data Index (QBDI) system API. It defines how client applications interact with a Qlik Big Data Index system.
QSL is a declarative query language used to analyze and extract data stored in a Qlik Big Data Index system. It is built on top of the grammar of Qlik expressions and elements of Qlik load script syntax, especially those that reuse SQL constructs.
QSL covers the following functional areas:
- Selection and Inference operations
- Hypercube requests
- Data extraction from Qlik Big Data Index
The examples here use datasets from the following sources:
-
TPC-H data from TPC
-
NYC taxi fare data