使用子查询将新客户插入 table
Inserting new customer into table using subquery
插入客户 Jake Smith,其送货地址为“yknhl fr hluhw”,可以通过“1236548780”和“jakesmith@email.com”联系到他(使用子查询从 shipping_details table, 直接插入地址会被标记为不正确).
^作业题说明
use assignment;
insert into customers(first_name,last_name,email,phoneNo)
values ('Jake','Smith','jakesmith@email.com','1236548780');
where shipping_detail_id in (select shipping_details.address from shipping_details where address like 'yknhl fr hluhw');
我在第 4 行中做错了什么,所以我可以成功地将新客户添加到 table 中。我感到困惑,不知道从那里去哪里
一个
你可以在 ÌNSERT INTO
的 definition 中看到
没有WHERE
子句,UPDATE有一个
但是你可以使用
use assignment;
insert into customers(first_name,last_name,email,phoneNo,shipping_detail_id)
SELECT('Jake','Smith','jakesmith@email.com','1236548780', shipping_detail_id)
from shipping_details where address like 'yknhl fr hluhw'
LIMIT 1;
或
use assignment;
insert into customers(first_name,last_name,email,phoneNo,shipping_detail_id)
VALUES ('Jake','Smith','jakesmith@email.com','1236548780', (SELECT shipping_detail_id
from shipping_details where address like 'yknhl fr hluhw'
LIMIT 1));
LIMIT 1
是为了防止该地址有多个 ID,那么您应该添加一个 ORDER BY
以获得正确的
插入客户 Jake Smith,其送货地址为“yknhl fr hluhw”,可以通过“1236548780”和“jakesmith@email.com”联系到他(使用子查询从 shipping_details table, 直接插入地址会被标记为不正确).
^作业题说明
use assignment;
insert into customers(first_name,last_name,email,phoneNo)
values ('Jake','Smith','jakesmith@email.com','1236548780');
where shipping_detail_id in (select shipping_details.address from shipping_details where address like 'yknhl fr hluhw');
我在第 4 行中做错了什么,所以我可以成功地将新客户添加到 table 中。我感到困惑,不知道从那里去哪里
一个
你可以在 ÌNSERT INTO
没有WHERE
子句,UPDATE有一个
但是你可以使用
use assignment;
insert into customers(first_name,last_name,email,phoneNo,shipping_detail_id)
SELECT('Jake','Smith','jakesmith@email.com','1236548780', shipping_detail_id)
from shipping_details where address like 'yknhl fr hluhw'
LIMIT 1;
或
use assignment;
insert into customers(first_name,last_name,email,phoneNo,shipping_detail_id)
VALUES ('Jake','Smith','jakesmith@email.com','1236548780', (SELECT shipping_detail_id
from shipping_details where address like 'yknhl fr hluhw'
LIMIT 1));
LIMIT 1
是为了防止该地址有多个 ID,那么您应该添加一个 ORDER BY
以获得正确的