使用行号从 sql 查询生成列表

Question

我正在尝试生成一个获取特定 ID 的第二行的脚本。我的第一个查询是正确的。然而，当我尝试列出 ID 列表时，我只得到 1 个结果。

应该对我的更新查询进行哪些调整以允许显示多个结果？

原始查询

;WITH YourTable AS(
           SELECT TOP 2
           EHistory.*,
            ROW_NUMBER() over (order by SignonDate desc) as RowNumber
            FROM
               EHistory
              LEFT JOIN EShip
              ON EHistory.ShipCode = EShip.ShipCode
            WHERE EHistory.EmployeeID = 123456 and IsTRProcessed = 1 
)
SELECT * FROM YourTable WHERE RowNumber = 2;

Generates 1 result which is correct

更新查询

;WITH YourTable AS(
           SELECT TOP 2
           EHistory.*,
            ROW_NUMBER() over (order by SignonDate desc) as RowNumber
            FROM
               EHistory
              LEFT JOIN EShip
              ON EHistory.ShipCode = EShip.ShipCode
            WHERE EHistory.EmployeeID IN (123456,234567,345678) and IsTRProcessed = 1 
)
SELECT * FROM YourTable WHERE RowNumber = 2;

Only Generates 1 result still

我很难思考应该修改什么以允许它显示多个结果。

示例结果应生成：

<table>
<th>ID</th><th>Ship</th>
<tr>
  <td>123456</td><td>Ship 1</td>
</tr>
</table>

<table>
<th>ID</th><th>Ship</th>
<tr>
  <td>123456</td><td>Ship 1</td>
</tr>
<tr>
  <td>234567</td><td>Ship 2</td>
</tr>
<tr>
  <td>345678</td><td>Ship 3</td>
</tr>
</table>

Answer 1

使用 partition by with Row_number() over(partition by ...)。您可能还需要从 select 语句中删除前 2 个。

;WITH YourTable AS(
       SELECT 
       EHistory.*,
        ROW_NUMBER() over (partition by EmployeeID  order by SignonDate desc) as RowNumber
        FROM
           EHistory
          LEFT JOIN EShip
          ON EHistory.ShipCode = EShip.ShipCode
        WHERE EHistory.EmployeeID IN (123456,234567,345678) and IsTRProcessed = 1 
)
SELECT * FROM YourTable WHERE RowNumber = 2;

使用行号从 sql 查询生成列表

Using Row number to generate list from sql query

sql

sql-server

row-number