ingres - UNION clause in embedded SQL -

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i'm using ingres 10s sql, , i'm trying write following sql statement in embedded sql c program. works fine standalone sql script, compiling esql program gets error

%% error in file localtask.sc, line 498: e_eq0244 syntax error on 'union'.

insert nr301_tab2 (authority_id) select a.authority_id nrremdets a, nrstatus_hierarchy z a.authority_id = z.authority_id union select a.authority_id nrsumsamts a, nrsumsdets b a.authority_id = b.authority_id;

(line 498 union line) what's wrong union clause?

just slight tweak of query , should work. try this:

insert nr301_tab2 (authority_id) select authority_id     (select a.authority_id      nrremdets a, nrstatus_hierarchy z      a.authority_id = z.authority_id      union      select a.authority_id      nrsumsamts a, nrsumsdets b      a.authority_id = b.authority_id) result

the idea union result sets, create new result set inserted once in table. adding parenthesis make sure happens.


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