PostgresQL - 循环通过每日 Select 语句进行月末报告

Question

PostgreSQL 9.4.5

我每天晚上 11:55 运行以下 select 语句。我想运行基于硬编码的 start_date 和 end_date 循环通过以下查询的每月查询（或函数）。查询必须每天处理结果。最后，我想看看我们在给定的一个月里有多少迷失的羊。

目的：Lost Sheep- 我们正在寻找尝试登录 MySoftware 并且一整天都没有成功的用户。

*The IP address is compared against other login attempts that may be successful the rest of the day.  In the event of a login failure, the query should look into the ip address and verify that no successful logins happened from that same IP address within the day.

SELECT  DISTINCT l.username, l.ip
FROM login l
                    WHERE
                        l.ip NOT IN 
                            (SELECT  l.ip
                            FROM login l
                            WHERE 
                                date_trunc('day', l."time") = current_date
                                AND l.succeeded = 'TRUE')
                        AND date_trunc('day', l."time") = current_date
                        AND l.succeeded = 'False'


fields in Table logins
 1. id  -int
 2. username --character varying(255)
 3. ip -- character varying (255)
 4. time -- timestamp without time zone
 5. succeeded -- boolean

Answer 1

select date_trunc('day', l.time) as 'day', l.username, l.ip
from login l
where date_trunc('month', l.time) = '2015-09-01'
group by 1, 2, 3
having not bool_or(succeded)