Question

我一直在为我的一个班级学习PL / SQL，我很难调试PLS-00103错误。我在线搜索了错误，但我找到的解决方案不一定足以解决我的问题。也许我只需要再看一眼。您将在下面找到我的代码和相应的错误消息。先感谢您！样本输出低于错误。

代码：

create or replace procedure pro_AvgGrade as

min_avg NUMBER := 100;
max_avg NUMBER := 0;
bins NUMBER := 0;
binlen NUMBER := 10;
temp NUMBER := 0;
binprint NUMBER := 0;

CURSOR grades IS SELECT AvgGrade FROM (SELECT DeptName, AVG(GradeAsPercentage) AS AvgGrade FROM Department JOIN Course on Department.DeptId = Course.DeptId JOIN Offering on Course.CourseId = Offering.CourseId JOIN Registration on Offering.OfferingId = Registration.OfferingId GROUP BY DeptName ORDER BY DeptName ASC);

grade_tuple grades%ROWTYPE;

BEGIN
    open grades;

    for grade_tuple in grades loop
        temp := grade_tuple.AvgGrade;
        if (temp>max) then
            max_avg := temp;
        elsif (temp<min) then
            min_avg := temp;
        end if;
    end loop;

    close grades;

    binprint := min_avg;
    bins := max_avg-min_avg;
    bins := bins/binlen;
    dbms_output.put_line('DeptName       AvgGrade:       ');

    LOOP
        dbms_output.put('>' || min_avg || ',' || '<=');
        min_avg := binlen+10;
        dbms_output.put(min_avg);
        dbms_output.put('     ');
        i := i+1;
        EXIT WHEN i>bins;
    END LOOP;

END pro_AvgGrade;
/


begin
pro_AvgGrade;
end;
/

错误：

    LINE/COL ERROR
-------- -----------------------------------------------------------------
19/15    PLS-00103: Encountered the symbol ")" when expecting one of the
     following:
     (

21/18    PLS-00103: Encountered the symbol ")" when expecting one of the
     following:
     (

示例输出：

DEPTNAME  AVGGRADE:  >70, <=80  >80,<=90

Answer 1

可能是因为max和min是保留字...所以它正在寻找max()和min() ......

但它看起来更像是你犯了一个错误。我想你需要试试这个：

    if (temp>max_avg) then
        max_avg := temp;
    elsif (temp<min_avg) then
        min_avg := temp;
    end if;

Answer 2

if块中不需要括号。写得像这样：

    if temp>max then
        max_avg := temp;
    elsif temp<min then
        min_avg := temp;
    end if;

令人沮丧的PL / SQL错误...... PLS-00103

2 个答案: