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表1:编译错误
id_client | XY
--------------
01 | str1
02 | str2
03 | str1
表2:
id_client | id_something
-------------------
02 | 32
02 | 48
01 | 32
表3:
id_something | name
--------------------
48 | john
32 | george
我想要写这需要的XY
一个从表1的值作为程序一个论点,并给出了我最大的id_something
我的name
我表2。我有这样的代码:
CREATE or REPLACE PROCEDURE myprocedure(XYvalue in VARCHAR2(100))
is
cursor countsCursor is select id_something, count(*) count
from table1 join table2 using (id_client)
WHERE XY=XYvalue
group by id_something;
cnt countsCursor%ROWTYPE;
max NUMBER;
idMax table2.id_something%TYPE;
maxName table3.name%TYPE;
BEGIN
max := 0;
open countsCursor;
loop
fetch countsCursor into cnt;
exit when countsCursor%NOTFOUND;
IF (cnt.count > max) THEN
max := cnt.count;
idMax := cnt.id_something;
END IF;
END loop;
select name into maxName from table3 where id_something = idMax;
if (max = 0) THEN
dbms_output.put_line('No id found');
else
dbms_output.put_line('Most occured is ' || maxName || ', with count: ' || max || '.');
END;
/
这是其中了,不能弄清楚什么是问题的错误:
1/59 PLS-00103: Encountered the symbol "(" when expecting one of the following:
:= .) , @ % default character
The symbol ":=" was substituted for "(" to continue.
3/71 PLS-00103: Encountered the symbol "JOIN" when expecting one of the following:
, ; for group having intersect minus order start union where
connect
我希望你能明白我试图解释。
谢谢,我没有在我的代码中使用'count',它只是作为一个解释,我也尝试了'VARCHAR2'没有最大长度,但我用'max'作为变量名称,这是问题所在,它现在工作正常。 –