ESQL
ESQL, also known as Extended SQL, is a procedural extension of the SQL language used in IBM's InfoSphere DataStage and other IBM integration products. It allows developers to embed SQL-like statements within data transformation processes. ESQL is designed to manipulate data as it flows through an integration flow, enabling complex transformations, routing, and error handling.
The syntax of ESQL closely resembles SQL but includes procedural elements such as variables, conditional statements
Key features of ESQL include its ability to perform calculations, string manipulations, date and time operations,
ESQL plays a crucial role in data integration scenarios, particularly in ETL (Extract, Transform, Load) and ESB