diff --git a/learnEcl/2101-test.md b/learnEcl/2101-test.md index 4f765a4..59b7f8a 100644 --- a/learnEcl/2101-test.md +++ b/learnEcl/2101-test.md @@ -1 +1,33 @@ -## TEST +--- +title: TEST +slug: test +--- + +# ECL + +ECL - Enterprise Control Language is designed to handle and manipulate immense datasets which makes it a prefect language to solve big data problems. ECL can be used for both ETL (Extract, Transform, and Load) and querying data. ECL is a declarative language which allows processing big data without the need of programmer being involved with details and in-depth of imperative decisions. + +## ECL vs SQL + +ECL and SQL can both be used to query a relational database. Following tables displays similar features between ECL and SQL. + +| SQL | ECL | +| --------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- | +| Declarative Language | Declarative Language | +| Database Server | Thor Cluster or Roxie Cluster | +| A SQL Table | An ECL Logical File | +| A SQL Editor | VSCode Editor or ECL Cloud IDE | +| A SQL File | A ECL File | +| Executing SQL means submitting the written SQL to the Database Server which in turn compiles it and executes it | Executing ECL means submitting the written ECL to a Thor or Roxie cluster which in turn compiles and executes it | +| SQL Execution History/Logs | ECL Workunits Database & ECL Watch Workunits View | + +## Language Highlights + +- ECL is not case sensitive language, but it is recommended to use uppercase for reserved words +- White spaces are ignored, but it is strongly recommended to use white space for clarity and readability +- Declarative Programming Language, which means you specifies what needs to be done rather than how to do it +- Source-to-source compiler +- ECL code translated to C++ that is compiled to shared libraries and executed within a custom frame-work + +Please refer [ECL syntax](./syntax.md) to learn about ECL standards. Or, +[jump right into coding](./output.md) and skip all the introductions.