topic Re: update table using JSL without adding missing columns in Discussions

update table using JSL without adding missing columns

tom_e_dunn — Sat, 10 Jun 2023 23:13:28 GMT

I'm trying to update the values of a specific column in a data table using values in another data table. The update function seems like the logical choice but it always seems to add extra unmatched columns to the updated table. From the update utility there is an option for this

However there isn't any mention of this in either the scripting index

or in the help search. I've tried

dt << update(
     with(dt2),
     match(:name=:name),
     ignore missing,
     add columns from update(none)
);

but that doesn't seem to work. Does anyone know what the correct option is for this?

Re: update table using JSL without adding missing columns

Jeff_Perkinson — Sat, 12 Dec 2020 14:20:15 GMT

You're almost there!

Looking at the Source script that's added to my table after I do an Update with that option I see that the script is:

Data Table( "Trial1.jmp" ) << Update(
  With( Data Table( "Little.jmp" ) ),
  Match Columns( :popcorn = :popcorn, :oil amt = :oil, :batch = :batch ),
  Add Columns from Update table( None )
);

-Jeff

Re: update table using JSL without adding missing columns

tom_e_dunn — Wed, 08 Apr 2015 16:51:51 GMT

Thanks Jeff!

Re: update table using JSL without adding missing columns

xxvvcczz — Tue, 27 Sep 2022 21:47:07 GMT

realized my update table had multiple entries for the same match col.