php - 如何在 mySQL 中动态更改限制

Question

public function getAllCelebDataFinal ($database,$celebrityId,$lastOutputId) 
{
    $getalldata = $database->executeObjectList("
        SELECT *
        FROM (
            (SELECT v.vidId, NULL as newsId, NULL as photoId, NULL as imageFile,
                    v.title as vidTitle, NULL as newsTitle, v.videoLink AS vidLink,
                    NULL as newsVidLink, NULL as newDetail , v.addDate
             FROM videos v
             WHERE v.celebrityId='".$celebrityId."' AND v.isPublished=1)
          UNION ALL
            (SELECT NULL as vidId, n.newsId,NULL as photoId,NULL as imageFile,
                    NULL as vidTitle, n.title as newsTitle, NULL AS vidLink,
                    n.videoLink as newsVidLink, n.details as newDetail,
                    n.addDate
             FROM news n
             WHERE n.celebrityId='".$celebrityId."' AND n.isPublished=1)
          UNION ALL
            (SELECT NULL as vidId,NULL as newsId,p.photoId,p.imageFile,
                    NULL as vidTitle, NULL as newsTitle, NULL AS vidLink,
                    NULL as newsVidLink,  NULL as newDetail , p.addDate
             FROM photos p
             WHERE p.celebrityId='".$celebrityId."' AND p.isPublished=1)
        ) results
        ORDER BY addDate DESC
        LIMIT 5");
    return $getalldata; 
}

将其视为第二个查询，如果我运行的第一个查询的限制为 5，我将 sendind 5 作为 $lastOutputId 作为参数，并且我想将此查询作为 5 到 5+5 运行，并且在同一个方式，下一个查询将以 10 到 15 的限制运行。我该怎么做？

Answer 1

LIMIT 可能有 2 个参数。在我们的例子中，我认为你可以像这样使用 LIMIT:

LIMIT $lastOutputId, 5

文档:http://php.about.com/od/mysqlcommands/g/Limit_sql.htm