The ability to manipulate data is critical in big data analysis. Manipulating data is the process of exchanging, moving, sorting, transforming, and modifying data. This technique is used in many situations, such as cleaning data, searching patterns, creating trends, and so on. HQL offers various statements, keywords, operators, and functions for carrying out data manipulation.
In this chapter, we will cover the following topics:
- Data exchange using LOAD, INSERT, IMPORT, and EXPORT
- Data sorting
- Functions
- Transactions and locks
