我需要从“最新”(即最高记录id)记录中获取字段每个值的值(本例中为server_name)。
我已经在server_name和id上添加了一个server_name索引。
我的第一次尝试花了几分钟的时间。
SELECT server_name, state
FROM replication_client as a
WHERE id = (
SELECT MAX(id)
FROM replication_client
WHERE server_name = a.server_name)
ORDER BY server_name
我的第二次尝试用了0.001次。
SELECT r
当我用VBA编写两行SQL查询时,会得到一个错误。但是,当编写一行查询时,它正在运行。示例
Sub Run_Report()
Dim Server_Name As String
Server_Name = "SRV2"
Call Connect_To_SQLServer(Server_Name, "Kn_v3", "SELECT TOP (1000) * FROM [d].[dbo].[AllBanks]")
End Sub
IT is running but below code is getting error;
Sub Run_
我正在使用Apache2.4,并尝试在conf文件中使用环境变量进行代理传递。有一个帖子[ ]在谈论这件事:
RewriteEngine on
RewriteMap lowercase int:tolower
#This sets the variable to env:
RewriteRule ^ - [E=SERVER_NAME:${lowercase:%{SERVER_NAME}}]
#Now interpolate makes variables available for proxypass & proxypassreverse:
ProxyPassInterpolate
我有这个.htaccess文件,但我希望它只在我在现场的时候这样做。
我有没有办法:
// if server_name looks like example.com to this
// else dont run this bit
RewriteCond %{HTTPS} off
RewriteCond %{REQUEST_URI} (auth|register|secure|payment|admin|trading_careers)
RewriteRule ^(.*)$ https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]
RewriteCon
我有两个Rake任务位于相同的命名空间中,如下所示:
namespace :db do
task :first_task => :environment do
server_name='myserver'
connect_to(server_name)
end
task :second_task => :environment do
server_name='myserver'
do_something_with(server_name)
end
end
正
我正在尝试使用存储过程更新event_alerts表,如下所示:
GO
ALTER procedure [dbo].[servermatch_servers]
@server_name varchar(25)
as
update event_alerts
set event_alerts.status_alert = (case when master_serverlist.Server_list is null then '0' else '1'
end)
from event_alerts inner join master_serverlist on
我希望设置一个默认的所有捕获服务器块,以处理与我的确切server_name值不匹配的任何主机名。但我不确定该用哪一种。
server {
listen 80 default_server;
server_name ""; # this is by default if no server_name specified
return 444;
}
或
server {
listen 80 default_server;
server_name _;
return 444;
}
我已经测试过了,他们的行为似乎是平等的。他们之间有什么