游標2用游標1每條記錄中的條件查詢
游標2用引數實現，其中mystring varchar2(20);是測試用的變數
如下create or replace procedure cursor_example
asmystring varchar2(20);
cursor selectcontent is
select a1,a2 from a;
cursor selectcontent2(a1string in varchar2) is
select b1,b2 from b where b.b1=a1string;
begin
for cursor1 in selectcontent
loop
mystring := cursor1.a1;
for cursor2 in selectcontent2(cursor1.a1)
loop
mystring := cursor2.b2;
end loop;
end loop;
end cursor_example;
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