此代码接受zipcode,city和state的输入,然后将其插入到创建的表Address中。在插入数据之前,它将检查zipcode是否已经在表中,如果是,则调用过程(错误)以显示错误代码。
我收到错误代码pls-00103:尝试执行代码时遇到符号“CREATE”。到目前为止,这是我的代码。感谢您提前提供任何帮助。
drop table address;
create table address(zipcode NUMBER, city varchar2(30), state varchar2(20));
create or replace procedure error as
begin
dbms_output.put_line('Error Zip Code already found in table');
end error;
declare
zzip number;
ccity varchar2(30);
sstate varchar2(30);
create or replace procedure location(p_zipcode NUMBER,
p_city varchar2,
p_state varchar2) is
zip address.zipcode%type;
cit address.city%type;
st address.state%type;
begin
select count(*) from address into zip where zipcode = zip;
if any_rows_found then
error;
else
Insert into address values(zip, cit, st);
end if;
end location;
begin
select &zipcode into zzip from dual;
select &city into ccity from dual;
select &state into sstate from dual;
procedure location(zzip, ccity, sstate);
end;
/
答案 0 :(得分:1)
我不确定你要做什么,但以下内容可能更接近您的想法:
drop table address;
create table address(zipcode NUMBER, city varchar2(30), state varchar2(20));
declare
zzip number;
ccity varchar2(30);
sstate varchar2(30);
procedure error is
begin
dbms_output.put_line('Error Zip Code already found in table');
end error;
procedure location(p_zipcode NUMBER, p_city varchar2, p_state varchar2) is
zip_count NUMBER;
begin
select count(*)
into zip_count
from address
where zipcode = p_zipcode;
if zip_count > 0 then
error;
else
Insert into address
(zipcode, city, state)
values
(p_zipcode, p_city, p_state);
end if;
end location;
begin
select &zipcode into zzip from dual;
select &city into ccity from dual;
select &state into sstate from dual;
location(zzip, ccity, sstate);
end;
/
祝你好运。
答案 1 :(得分:0)
我不知道我是否正确理解了您的问题,但我想解决一些问题以解决您的问题
首先,如果要创建过程/函数,请在单独的工作表中进行编译。不要与其他匿名块一起编译它,因为大多数时候,如果你不用'/'结束你的其他块,肯定会产生错误。
其次,您的DECLARE语句放错了地方,如果您要创建一个匿名块,请确保DECLARE,BEGIN和END排队,不要在匿名块内创建过程/函数。
第三,您在程序中声明变量并使用它们但没有初始值,因此它只会将空值传递给过程中的DML语句。只需直接使用参数。
第四,避免创建仅包含dbms_output.put_line的过程。它很傻。
最后,您的匿名阻止应该调用您的程序,使用'&',请避免使用'&'里面的pl / sql为'&'是SQL * Plus中的一个特性,在PL / SQL中没有任何意义,相反,你可以使用':'作为绑定变量。但你使用'&'不在绑定变量中,所以你应该删除它;
试试这个:
drop table address;
/
create table address(zipcode NUMBER, city varchar2(30), state varchar2(20));
/
create or replace procedure location(p_zipcode NUMBER,
p_city varchar2,
p_state varchar2) is
zip address.zipcode%type;
begin
select count(*)
from address
into zip
where zipcode = p_zipcode
and city =p_city
and state = p_state;
if zip > 0 then
dbms_output.put_line('Error Zip Code already found in table');
else
Insert into address values(p_zipcode, p_city, p_state);
end if;
end location;
/
begin
location(:zzip, :ccity, :sstate);
end;