这是我的代码:
procedure test IS
tn varchar2(99);
i number(6);
cursor c1 is
select tname
from tab
where tabtype='TABLE'
and tname NOT LIKE 'BIN%'
order by tname;
begin
open c1;
loop
fetch c1 into tn;
exit when c1%notfound;
sq3 := 'select count(*) from '||tn;
EXECUTE IMMEDIATE sq3 INTO i;
htp.anchor2('XXX.test2?tabl='||tn,tn||' = '||i,'F3','F3');
end loop;
close c1;
end test;
执行后,我收到错误消息
Failed to execute target procedure
ORA-00903: invalid table name
对于此行“立即将sq3放入i;”
任何想法为什么?
提前感谢!
错误不言自明:
您要计算其行数的表的名称之一无效。
您可以使用以下代码来捕获异常并确定表的名称:
procedure test
IS
tn varchar2(99);
i number(6);
cursor c1 is
select tname
from tab
where tabtype='TABLE'
and tname NOT LIKE 'BIN%'
order by tname;
invalid_table_name EXCEPTION;
PRAGMA EXCEPTION_INIT( invalid_table_name, -903 );
begin
open c1;
loop
fetch c1 into tn;
exit when c1%notfound;
BEGIN
sq3 := 'select count(*) from '||tn;
EXECUTE IMMEDIATE sq3 INTO i;
htp.anchor2('XXX.test2?tabl='||tn,tn||' = '||i,'F3','F3');
EXCEPTION
WHEN invalid_table_name THEN
DBMS_OUTPUT.PUT_LINE( 'Invalid Table Name: ' || tn );
END;
end loop;
close c1;
end test;
您可能会发现表名无效,因为它区分大小写,并且您没有在EXECUTE IMMEDIATE
语句中这样处理它。在这种情况下,您可以使用:
sq3 := 'select count(*) from "'||tn||'"';