...
v_i integer;
...
begin
select count(*) into v_i from table1 where ...;
if v_i>0 then
--exist this recorder;
else
--not exist this recorder;
end if;
...
v_i integer;
...
begin
select count(*) into v_i from table1 where ...;
if v_i>0 then
--exist this recorder;
else
--not exist this recorder;
end if;
...
解决方案 »
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