我正在尝试检查变量“prodno”是否包含任何非整数字符。如果是,则删除非整数字符。
-- Expected output:
prodno A18
prodno K67
drop table ass3_product cascade constraints;
create table ass3_product (
prodno varchar2(30) primary key,
prodname varchar2(30),
purchasecost number(6,2)
);
insert into ass3_product values ('23','Prod One', 10);
insert into ass3_product values ('54','Prod Two', 50);
insert into ass3_product values ('A18','Prod Three', 35);
insert into ass3_product values ('9','Prod Four', 4);
insert into ass3_product values ('K67','Prod Five', 15);
SELECT prodno
FROM ass3_product
WHERE prodno like '%[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]%';