[英]Select a value and set it in a variable in mysql
this is my problem: 这是我的问题:
I have a result of a SELECT that show me some value like first name and last name of a user. SELECT的结果显示给我一些值,例如用户的名字和姓氏。
Example: 例:
Firstname = "First" 名字=“名字”
Lastname = "Last" 姓氏=“姓氏”
Now I want to get another value that is the result of another select (SELECT * FROM x WHERE y = z) 现在我想获得另一个选择的结果(SELECT * FROM x WHERE y = z)
Example: 例:
Firstname = "First" 名字=“名字”
Lastname = "Last" 姓氏=“姓氏”
NewValue = "true" (or false) NewValue =“ true”(或false)
How can I do this? 我怎样才能做到这一点?
do you mean something like this 你的意思是这样吗
select Firstname , Lastname , (select column from another_table ) as NewValue
from myTable
SELECT Firstname, Lastname,
(SELECT ColumnName AS NewValue
FROM table_Name2
WHERE (your condition goes here)
FROM table_Name1
WHERE (your condition goes here)
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