[Fwd: How to read a multiset from a table]
Andrew Makhorin <[email protected]>
| Newsgroups | gmane.comp.gnu.glpk |
|---|---|
| Message-ID | <1490355251.3627.0.camel@corvax> |
-------- Forwarded Message -------- From: Golubeva Elizaveta <[email protected]> To: [email protected] <[email protected]> Subject: How to read a multiset from a table Date: Fri, 24 Mar 2017 07:58:19 +0000 Good morning! Is it possible to read the multiset “chains_dp_fn_sc” from the table “set_chains_dp_fn_sc”? I know it is possible to assign values to a multiset in such a way: set chains_dp_fn_sc[1,1,2] := 6.0 7.0 8.0 ; But when I try to read it from the table a get an error: “chains_dp_fn_sc must be a simple set”. #model set chains_dp_fn_sc{ delivery_point_ids, fuel_name_ids, sales_channel_ids} default {}; table set_chains_dp_fn_sc IN 'ODBC' 'DSN=SERVICENOW; UID=sop_user; PWD=1qaz@WSX;' 'SELECT value FROM set_chains_dp_fn_sc' 'WHERE delivery_point_id=1 AND fuel_name_id=1 AND sales_channel_id=2' : chains_dp_fn_sc[1,1,2] <- [value]; Best regards! _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk