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使用update我试图用对于选择内更新,但我得到了错误:与光标
Invalid cursor reference. Relation mytable is not found in cursor TCUR.
下面是该过程:
create or alter procedure MyPROC
returns (
BIN_NO integer,
QUANTITY integer)
as
declare variable V_BIN_TO integer;
declare variable V_BIN_FROM integer;
begin
for
select
mytable.bin_no,
mytable.quantity
from table2
right outer join mytable on (table2.quote_id = mytable.quote_id)
into :bin_no, :quantity AS CURSOR tcur
do begin
v_bin_from = COALESCE(:v_bin_to,0) + 1;
v_bin_to = COALESCE(:v_bin_to,0) + :quantity;
update mytable set bin_no = v_bin_from || v_bin_to where current of tcur;
end
end
我应该怎样解决这个问题? 这是火鸟数据库