存储过程和 asp.net 可编程性；变量或 SQL

Question

尝试显示用户姓氏、名字 --- 网站

我需要在 Lastname 后面插入一个逗号和空格到 GridView。 我正在尝试在 SQL 中添加 CASE 语句，但无法弄清楚。

也许我需要使用@parameter（标量变量？）来抽象 从CASE 语句读取的内存；或者我的语法是错误的，我只是不 明白。

SELECT 
    CASE
       WHEN IsNull(people_Table.firstName, '') = ''
         THEN CONCAT(people_Table.lastName, ', ', people_Table.firstName) 
         ELSE people_Table.lastName
    END as fullName, 
    people_Table.website
FROM 
    people_Table 
INNER JOIN 
    membership_Table on people_Table.ID = membership_Table.personID
WHERE 
    rectype = 'Master'
    AND membershipType = 'Business'
    AND expirationDate > GetDate()
ORDER BY 
    people_Table.lastName

获取 SQL Server 错误：

消息 208，第 16 级，状态 1，第 1 行
无效的对象名称“people_Table”。

否则我想我应该在模板中使用 asp databoundevent。

性能和安全性哪个更好？

Answer 1

SELECT    ISNULL(people_Table.lastName + ', ', '') 
            + ISNULL(people_Table.firstName , '') as fullName
        , people_Table.website
FROM people_Table INNER JOIN membership_Table on people_Table.ID =
membership_Table.personID
WHERE rectype = 'Master'
AND membershipType = 'Business'
AND expirationDate > GetDate()
ORDER BY people_Table.lastName

或

SELECT    COALESCE(people_Table.lastName + ', ', '') 
            + COALESCE(people_Table.firstName , '') as fullName
        , people_Table.website
FROM people_Table INNER JOIN membership_Table on people_Table.ID =
membership_Table.personID
WHERE rectype = 'Master'
AND membershipType = 'Business'
AND expirationDate > GetDate()
ORDER BY people_Table.lastName