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m →Hello world: <source lang="ecl"> |
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=== Hello world ===
ECL is to have succinct solutions to problems and sensible defaults. The "Hello World" program is characteristically short:
"Hello World".
Perhaps a more flavorful example would take a list of strings, sort them into order, and then return that as a result instead.
<source lang="ecl">
// First declare a dataset with one column containing a list of strings
// Datasets can also be binary, CSV, XML or externally defined structures
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SD := SORT(D,Value);
output(SD)
</
The statements containing a <code>:=</code> are defined in ECL as attribute definitions. They do not denote an action; rather a definition of a term. Thus, logically, an ECL program can be read: "bottom to top"
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What is an SD?
<source lang="ecl">
SD := SORT(D,Value);
</source>
SD is a D that has been sorted by ‘Value’
What is a D?
<source lang="ecl">
D := DATASET([{'ECL'},{'Declarative'},{'Data'},{'Centric'},{'Programming'},{'Language'}],{STRING Value;});
</source>
D is a dataset with one column labeled ‘Value’ and containing the following list of data.
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