Question

我希望在很长一段时间内在每个分区中都有行计数。所以我使用了用于循环的地方，我试图提取将在分区中使用的日期。但是我遇到了错误。无法解决它。任何人都可以帮助我和一些可能增加我的专业知识的文件吗？谢谢。

declare
call_enddate date;
totalcount number;
begin
for curdate in (WITH x(d) AS
                 (SELECT TO_DATE('2016-09-01', 'yyyy-mm-dd')
                   FROM dual
                 UNION ALL
                 SELECT d + interval '1' day
                   FROM x
                  WHERE d < TO_DATE('2017-09-05', 'yyyy-mm-dd'))
                SELECT to_char (d, 'YYYYMMDD') Date_Char FROM x
              ) 
loop
        execute immediate 'select --parallel(32)
                    trunc(call_end_time), count(*) into call_enddate, totalcount 
                    from lic_msc_data partition(p'||TO_CHAR(curdate.Date_Char,'YYYYMMDD'||'))
                    where sp_number like ''88016%''
                    group by trunc(call_end_time)';                        
dbms_output.put_line(call_enddate||'----'||totalcount);  
end loop;
end;

错误代码：

ORA-06550: line 19, column 55:
PLS-00103: Encountered the symbol ";" when expecting one of the following:
) , * & = - + < / > at in is mod remainder not rem =>
<an exponent (**)> <> or != or ~= >= <= <> and or like

Answer 1

问题是您在语句中嵌入了PL / SQL into子句。这样做是这样的：

for curdate in (WITH x(d) AS
                 (SELECT DATE '2016-09-01'
                   FROM dual
                 UNION ALL
                 SELECT d + 1
                   FROM x
                  WHERE d < DATE '2017-09-05')
                SELECT d FROM x
              ) 
loop
        execute immediate 'select --parallel(32)
                    trunc(call_end_time), count(*)
                    from lic_msc_data partition(p'||TO_CHAR(curdate.d,'YYYYMMDD'||'))
                    where sp_number like :n
                    group by trunc(call_end_time)'
               into call_enddate, totalcount using '88016%';

也许这个更优雅：

BEGIN
    d := DATE '2016-09-01';
    LOOP
        EXECUTE IMMEDIATE ...
        dbms_output.put_line(call_enddate||'----'||totalcount); 
        d := d + 1;
        EXIT WHEN d > DATE '2017-09-05';
    END LOOP;
END;

顺便说一下，--parallel(32)没有任何意义。你的意思是--+ parallel(32) resp。 /*+ parallel(32) */？

在立即执行中使用变量

1 个答案: