Displaying 1 result from an estimated 1 matches for "joinby".
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2007 Jun 13
3
Awk and Vilno
...er data situations, the
statistical programmer needs to merge and re-merge multiple input
files countless times. A syntax for merging files that is clear and
concise is very important for the statistical programmer's
productivity.
Here is how Vilno does it:
inlist dataset1 dataset2 dataset3 ;
joinby variable1 variable2 where ( var3<=var4 ) ;
Each column in a dataset has a variable name ( variable1, variable2,
var3, var4 ).
You are merging three input datafiles: dataset1, dataset2, and dataset3.
The joinby statement asks for a many-to-many join, rather like the SQL
SELECT statement.
[ The...