题解 | #纠错4#
纠错4
https://www.nowcoder.com/practice/bde1451b91084c8cab467387a0e0969c
#1. 单个select查询语句order by 仅使用一次
/*SELECT
cust_name,
cust_contact,
cust_email
FROM Customers
WHERE cust_state = 'MI'
UNION
SELECT
cust_name,
cust_contact,
cust_email
FROM Customers
WHERE cust_state = 'IL'
ORDER BY cust_name
SQL;
# 2.or
select
cust_name ,
cust_contact ,
cust_email
from Customers
where cust_state = 'MI'
or cust_state = 'IL'
order by cust_name
SQL;*/
# 3. in
select
cust_name ,
cust_contact ,
cust_email
from Customers
where cust_state in ('MI' , 'IL')
order by cust_name
;