我是 SQL 的新手,我正在尝试创建一个将插入到审计表中的触发器。
create or replace trigger late_ship_insert
after insert on suborder
for each row
declare
employee int;
begin
select emp_id
into employee
from handles
where order_no = :new.order_no;
if :new.actual_ship_date > :new.req_ship_date then
insert into ship_audit
values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date);
end;
错误:
Warning: execution completed with warning
trigger late_ship_insert Compiled.
但是一旦我尝试插入语句,它就会告诉我触发器无法正常工作以删除它。
Error starting at line 1 in command:
insert into suborder
values ( 8, 3, '10-jun-2012', '12-jul-2012', 'CVS', 3)
Error at Command Line:1 Column:12
Error report:
SQL Error: ORA-04098: trigger 'COMPANY.LATE_SHIP_INSERT' is invalid and failed re-validation
04098. 00000 - "trigger '%s.%s' is invalid and failed re-validation"
*Cause: A trigger was attempted to be retrieved for execution and was
found to be invalid. This also means that compilation/authorization
failed for the trigger.
*Action: Options are to resolve the compilation/authorization errors,
disable the trigger, or drop the trigger.
知道是什么原因造成的,如有任何帮助,我们将不胜感激。谢谢!
最佳答案
格式化代码时出现的明显错误是您的 IF
语句缺少 END IF
create or replace trigger late_ship_insert
after insert on suborder
for each row
declare
employee int;
begin
select emp_id
into employee
from handles
where order_no = :new.order_no;
if :new.actual_ship_date > :new.req_ship_date then
insert into ship_audit
values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date);
end if;
end;
一般来说,您应该始终在您的 INSERT
语句中列出目标表的列,而不是依赖于您的 INSERT
语句为每一列并以正确的顺序指定它们。这将使您的代码更加健壮,因为当有人向表中添加其他列时它不会变得无效。这看起来像这样(我在猜测 ship_audit
表中列的名称)
create or replace trigger late_ship_insert
after insert on suborder
for each row
declare
employee int;
begin
select emp_id
into employee
from handles
where order_no = :new.order_no;
if :new.actual_ship_date > :new.req_ship_date then
insert into ship_audit( emp_id, order_no, suborder_no, req_ship_date, actual_ship_date )
values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date);
end if;
end;
关于database - Oracle 触发器无效,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11569081/