te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>sql - SELECT rows where a JSON key is biggersmaller than - Stack Overflow

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    my table contains a value json-column. The format is following:

    {
    "id":"string",
    "user":int,
    "history":{
        "unixtimestamp":{
            "progress":"string",
            "editorId":int
        },
        "unixtimestamp":{
            "progress":"string",
            "editorId":int
        },
        ...
    }
}

    I try to get all rows where the unixtimestamp contains a key which is between a given date. I can get an array set of the keys by selecting JSON_KEYS(´value', '$.history'). But I can't find a solution how to filter this.

    Thanks for help!

    my table contains a value json-column. The format is following:

    {
    "id":"string",
    "user":int,
    "history":{
        "unixtimestamp":{
            "progress":"string",
            "editorId":int
        },
        "unixtimestamp":{
            "progress":"string",
            "editorId":int
        },
        ...
    }
}

    I try to get all rows where the unixtimestamp contains a key which is between a given date. I can get an array set of the keys by selecting JSON_KEYS(´value', '$.history'). But I can't find a solution how to filter this.

    Thanks for help!

    • sql
    • mysql
    • json
    Share Improve this question edited 2 days ago Dale K 27.3k15 gold badges57 silver badges83 bronze badges asked 2 days ago KriZaKriZa 233 bronze badges New contributor KriZa is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. 1
    • 1 Help us help you - share some sample data and the result you're trying to get for it. – Mureinik Commented 2 days ago
    Add a comment  | 

    1 Answer 1

    Reset to default 1
    • JSON_KEYS(t.value, '$.history') to get the keys from history.
    • JSON_TABLE to flatten the array of keys.
    • CAST(j.t_key AS UNSIGNED) to convert to number and allow filtering.
    SELECT 
  DISTINCT CAST(value AS CHAR) 
FROM 
  sample_table AS t 
  JOIN JSON_TABLE(
    JSON_KEYS(t.value, '$.history'), 
    '$[*]' COLUMNS (
      t_key VARCHAR(20) PATH '$'
    )
  ) AS j ON TRUE 
WHERE 
  CAST(j.t_key AS UNSIGNED)
    BETWEEN 1737100000 AND 1737290000

    dbfiddle

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