为什么在子查询中筛选NULL不起作用?我希望通过将NULL添加到允许的值列表中来获得正确的结果,例如:
SELECT ERP_ServiceProcess.fiStatusNew, RMA.IdRMA
FROM ERP_ServiceProcess RIGHT OUTER JOIN
RMA ON ERP_ServiceProcess.fiRMA = RMA.IdRMA
WHERE (ERP_ServiceProcess.fiStatusNew IN (NULL, 1, 7, 8))
order by ERP_ServiceP
当我想使用桑巴在centos6.5中将文件复制到我的windows 7文件夹时,出现了一个错误。这是错误消息:
you need permission to perform this action
You require permission from ERP\hao to make change to this file.
[global]
workgroup = MYGROUP
server string = Samba Server Version %v
log file = /var/log/samba/log.%m
# max 50KB per lo
我有两个不同表,我使用一些过滤器和聚合函数(如SUM、COUNT、SUBSTR )对其应用select查询。
我希望在单个result.example中获得这两种不同的输出:
问题1:
SELECT
a.message_type,
a.queue_seqnum,
b.queue_seqnum,
SUBSTR(b.char_data,1,2) files
FROM
ad_in_messageheader a,
ad_in_messagedetail b
WHERE
a.queue_seqnum = b.queue_seqnum AND
我在apache代理后面有一个erpnext服务器。该服务经常发生故障,并显示503个服务不可用错误
Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
erp.example.it端口443的Apache/2.4.41 (Ubuntu)服务器
我确信erpnext服务器正在工作,因为我可以通过ip访问网页。我知道这个错误是由apache给出的,当