游标可以嵌套循环吗?

[margg]

boolean lb_continue6,lb_6
declare cu_pcn6 cursor for
select id,p_cn from user_m where s_cn = :ls_pcn5;
open cu_pcn6;
Do while lb_continue6
Fetch cu_pcn6 into :li_userid6,:ls_pcn6;
if sqlca.sqlcode = 0 then
declare cu_assess6 cursor for
select assess from orderbill
where userid = :li_userid6
and year(makedate) = :li_year
and month(makedate) = :li_month ;
open cu_assess6;
Do while lb_6
Fetch cu_assess6 into :ld_assess6;
if sqlca.sqlcode = 0 then ld_total6 = ld_total6 + ld_assess6
else
lb_6 = false
end if
Loop
close cu_assess6;
else
lb_continue6 = false
end if
Loop
close cu_pcn6;

[hzhxxx]

可以，但是不能使用相同的数据库事务

[10975037]

是可以的！

[foxphoenix]

可以，慢的要命

[zysys]

可以.
例子:
DECLARE lcs_bat CURSOR FOR
select qut,ide_bat,dat_eff
from pro_bat_ide
where dep=:gl_dep and uqi_pro=:ll_uqi and qut>0;
OPEN lcs_bat;
FETCH lcs_bat INTO :ldc_qut,:ls_batide,:ldt_effdat;
DO WHILE sqlca.sqlcode=0
if MessageBox("发现该商品有“"+string(ll_CouRow)+"”个批号：","批号"+ls_batide+"数量为："+string(ldc_qut)+"有效期为："+string(ldt_EffDat,"yyyy.mm.dd")+"~r~n~r~n是否选择该批号的商品？",None!,YesNo!)=1 then
Exit
end if
FETCH lcs_bat INTO :ldc_qut,:ls_batide,:ldt_effdat;
LOOP
CLOSE lcs_bat;