每当我尝试在appcelerator中运行我的android应用程序时,突然出现这个错误。知道这是什么原因吗?
[ERROR] : tunneling socket could not be established, statusCode=400
[ERROR] Application Installer abnormal process termination. Process exit value was 1
TRACE | titanium exited with exit code 100
ERROR | Error: ti run exited with error code
CustomerID是独一无二的。
这个问题的结果是什么?
SELECT personalnumber,
Amount = Count(CustomerID),
FROM Customer
GROUP BY personalnumber
HAVING Count(CustomerID) > 100
计数(CustomerID)>100是什么意思?是CustomerID必须在100以上吗?
我的显示员工记录的程序运行得很好,除了在支付时显示不正确的值。需要改变的是什么?
Sub AddPlist(month As String, age As String, employeenumberid As Integer, hourlyrateline As Integer)
Dim hoursworkedline As String
Dim normalhoursworked As Integer
Dim overtimerate As String
Dim normalpay As Decimal
Di
我从angular.io下载了quickseed应用程序,但当我安装npm并尝试使用npm start运行应用程序时,它显示错误
Error occured when executing command: npm run serve
Error: spawn cmd.exe ENOENT
at exports._errnoException (util.js:1020:11)
at Process.ChildProcess._handle.onexit (internal/child_process.js:197:32)
at onErrorNT (intern
我已经创建了一个nestJS rest。下面是我用来构建服务的docker文件。
FROM node:alpine3.16 AS development
WORKDIR /usr/src/app
COPY --chown=node:node package*.json ./
RUN npm ci
COPY --chown=node:node . .
RUN npm run build
ENV NODE_ENV production
RUN npm ci --only=production --omit=dev && npm cache clean --force
FROM n
如果我有两列feature和feature_value的数据,就像下面的示例数据集一样
feature feature_value
X 1
X 1
X 2
Y 7
Y 8
Y 9
Z 100
我只想得到feature,feature_value列,对于少于3个不同值的特征(在这种情况下,只有具有X和Z的列),有效的方法是什么?使用Count(Distinct)并应用where条件,或者有更快的方法吗?