查询，获取结果 再次查询 [英] make a query, get results make query again
本文介绍了查询，获取结果 再次查询的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想在一条语句中执行这些查询:- How TO ??
i want to execute these queries in a single statement :- How TO ??
SELECT count(id) as levela FROM `member` where parent_id in (SELECT id FROM `member` where parent_id in (SELECT id FROM `member` where parent_id = 2 ))
SELECT count(id) as levelb FROM `member` where parent_id in (SELECT id FROM `member` where parent_id = 2)
SELECT count(id) as levelb FROM `member` where parent_id = 2
推荐答案
改为使用 'where'、'where in' - where in 允许您在数组中进行 serach.例如:
Use instead 'where', 'where in' - where in allows You to serach in array. for example :
Select id from member where parent_id IN (here array ($y) )
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