20 lines
271 B
ObjectPascal
20 lines
271 B
ObjectPascal
// Left Join
|
|
uses DataFrameABC;
|
|
|
|
begin
|
|
var students := DataFrame.FromCsvText('''
|
|
id,name
|
|
1,Alice
|
|
2,Bob
|
|
3,Charlie
|
|
''');
|
|
|
|
var scores := DataFrame.FromCsvText('''
|
|
id,score
|
|
1,85
|
|
2,90
|
|
4,70
|
|
''');
|
|
|
|
students.Join(scores, 'id', jkLeft).Print;
|
|
end. |