如何使用SQL或PHP忽略查询结果中的一行？

Question

我可以以某种方式忽略最早的帖子吗？ 使用SQL还是PHP？

SELECT subject, date 
FROM posts
WHERE id = $id
ORDER BY date DESC
while ($row = mysql_fetch_array($query)) {

干杯

Answer 1

您可能编写了一些复杂的sql来做到这一点，或者您可以在php中完成它：

$first = true;
while ($row = mysql_fetch_array($query)) {
    if ( $first ) {
       $first = false;
       continue;
    }

    // Process rows here
}

Answer 2

我没有什么可以测试的，但是可以吗？

SELECT subject, date 
FROM posts
WHERE id = $id
OFFSET 1
ORDER BY date DESC

或针对MySQL的五种兼容性，如注释中所指出

SELECT subject, date 
    FROM posts
    WHERE id = $id
    LIMIT 1,18446744073709551615;
    ORDER BY date DESC

大量数据是完全从MySQL文档复制而来的。

Answer 3

假设日期唯一确定给定ID的一行，

  SELECT subject, date 
    FROM posts
   WHERE id = $id
     AND date NOT IN
         ( SELECT MIN(date)
             FROM posts
            WHERE id = $id
         )
ORDER BY date DESC

Answer 4

如果您使用的是SQL 2005或更高版本，则可以使用row_number函数...

With MyCTE AS (
    SELECT subject, 
           date,
           RowNumber = ROW_NUMBER() OVER(ORDER BY date DESC)
    FROM   posts
    WHERE  id = $id)
SELECT *
FROM   MyCTE
WHERE  RowNumber > 1
ORDER BY date DESC