根据会话id和日期时间获取跳出率的Sql查询

-- 假设会话表名为sessions，包含字段session_id、timestamp等
-- 假设跳出行为定义为在会话中只有一条记录

-- 计算指定会话id和日期时间范围内的总访问次数
SELECT COUNT(*) AS total_visits
FROM sessions
WHERE session_id = '指定会话id'
  AND timestamp >= '起始日期时间'
  AND timestamp <= '结束日期时间';

-- 计算指定会话id和日期时间范围内的跳出次数
SELECT COUNT(*) AS bounce_visits
FROM sessions
WHERE session_id = '指定会话id'
  AND timestamp >= '起始日期时间'
  AND timestamp <= '结束日期时间'
  AND (SELECT COUNT(*) FROM sessions WHERE session_id = '指定会话id') = 1;

-- 计算跳出率
SELECT (bounce_visits / total_visits) * 100 AS bounce_rate
FROM (
  SELECT COUNT(*) AS total_visits
  FROM sessions
  WHERE session_id = '指定会话id'
    AND timestamp >= '起始日期时间'
    AND timestamp <= '结束日期时间'
) AS t1,
(
  SELECT COUNT(*) AS bounce_visits
  FROM sessions
  WHERE session_id = '指定会话id'
    AND timestamp >= '起始日期时间'
    AND timestamp <= '结束日期时间'
    AND (SELECT COUNT(*) FROM sessions WHERE session_id = '指定会话id') = 1
) AS t2;