SQL 查询将 ID 排序为 ASC 和 Zip 不得重复

Question

我有一个这样的 SQL 语句：

SELECT         TOP 100 id, 
               lastname, 
               firstname, 
               address1, 
               city, 
               state, 
               zip 
FROM   leads 
WHERE  id > 100 
ORDER  BY id ASC

现在我希望 100 个结果的 ZIP 与 1 个类似的查询语句不同（不是重复）。

Answer 1

SELECT         TOP 100 l.id, 
               l.lastname, 
               l.firstname, 
               l.address1, 
               l.city, 
               l.state, 
               l.zip 
FROM   leads l
WHERE   l.id = (select MIN (id) FROM leads l2 where l2.zip=l.zip)
ORDER  BY l.id ASC

SQL 查询将 ID 排序为 ASC 和 Zip 不得重复

SQL query to sort the ID as ASC and Zip must not dup

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