How Do I Add Multi Row To Cursor In Oracle

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i have a FOR LOOP in oracle and in each loop i want to add an record to out cursor

i try

SQL

FOR reCord IN C
          LOOP      
             open cur for select reCord.TONG_TIEN as "TONG TIEN", reCord.ID_PHIEUGUI as "ID PHIEU GUI", reCord.MA_BUUCUC_GOC as "MA BC GOC" from DUAL;
          END LOOP;

but out cur is one last row, how can i add more row using loop?

Posted 6-Jan-14 18:34pm

summerrain_90

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Jörgen Andersson · Accepted Answer · 2014-01-06T21:25:00

You can't, a cursor is a read only pointer to a result set, so you're creating a new cursor (pointer to a result set) every time you open it
One way around is to use a union and create and execute it as a string like:

SQL

x := 'open cur for '
loop
    x := x || 'Select something from dual '
    x := x || 'Union all' --should not be added if it's the last row
End Loop
exec x

This is not tested or checked for syntax or other errors, it's merely for giving you an idea on a possible way to do it