小编Sat*_*Che的帖子

我正在尝试将带有 cuDF 和 cuML 的 Rapids 库安装到 Colab 会话，并根据此示例执行代码：来自 在 Googe Colab 笔记本上安装 RAPIDS 库

!wget -nc https://raw.githubusercontent.com/rapidsai/notebooks-contrib/890b04ed8687da6e3a100c81f449ff6f7b559956/utils/rapids-colab.sh
!bash rapids-colab.sh

import sys, os

dist_package_index = sys.path.index("/usr/local/lib/python3.6/dist-packages")
sys.path = sys.path[:dist_package_index] + ["/usr/local/lib/python3.6/site-packages"] + sys.path[dist_package_index:]```
sys.path
if os.path.exists('update_pyarrow.py'): ## This file only exists if you're using RAPIDS version 0.11 or higher
  exec(open("update_pyarrow.py").read(), globals())

在安装过程中我收到此错误：

  - cudf=0.11

Current channels:

  - https://conda.anaconda.org/rapidsai-nightly/label/xgboost/linux-64
  - https://conda.anaconda.org/rapidsai-nightly/label/xgboost/noarch
  - https://conda.anaconda.org/rapidsai-nightly/linux-64
  - https://conda.anaconda.org/rapidsai-nightly/noarch
  - https://conda.anaconda.org/nvidia/linux-64
  - https://conda.anaconda.org/nvidia/noarch
  - https://conda.anaconda.org/conda-forge/linux-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/linux-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/free/linux-64
  - https://repo.anaconda.com/pkgs/free/noarch …

dateformat()和createODBCDate()ColdFusion有什么区别？这两个功能是否相同？我什么时候需要使用DateFormat(),何时需要使用createODBCDate()？

如何使用 ColdFusion 检查日期格式。我想检查用户是否以 格式输入日期yyyy-mm-dd。当用户以我想显示的格式输入日期时dd-mm-yyyy显示错误消息。有什么简单的方法可以解决这个问题吗？

我在本地CF和Lucee服务器中比较了以下查询.ColdFusion服务器抛出QoQ运行时错误.但是,当我在Lucee中执行相同的查询时,它会返回所需的查询结果.

<cfquery name="getusers" datasource="myDSN">
    SELECT 
        UC.UserContactName, U.UserID 
    FROM Users U 
        INNER JOIN UserContacts UC ON U.UserID = UC.UserID 
    WHERE U.UserID in (99,52,41,76,15) 
</cfquery>

<cfquery name="getContactName" dbtype="query">
    SELECT UserContactName FROM getusers 
    WHERE U.UserID  = <cfqueryparam value="76" cfsqltype="cf_sql_integer">
</cfquery>

<cfdump var="#getContactName#" />

CF服务器在上面的代码上抛出此错误,因为它考虑了别名:

选定的列引用U.UserID与FROM表列表中的任何表都不匹配.

但是,Lucee服务器不考虑别名,run运行上面没有错误.有谁知道为什么Lucee服务器不考虑QoQ列别名？请分享您对此的想法或建议.

我正在启动这样的 CFC。

<cfscript>
  lock scope="application" timeout="5" {
    application.mycfc = new mycfc();
  }
  writeOutput(application.mycfc.readVars());
</cfscript>

在 CFC 中，我正在设置一些属性。

component output="false" accessors="true" {
  property name="title";
  property name="foo";

  this.title = "mycfc";

  function init() {
    this.foo = "bar";

    // I can now properly read this.title, or this.foo.
    return this;
  }

  function readVars() {
    // Here, I can read this.title, from the constructor space, but I can't 
    // read this.foo. It's just blank (because the default value of the 
    // `default` attribute of `property` is …

实际上我使用UserId与客户端范围.

我可以直接在组件文件中使用Client范围,还是仅通过参数范围使用？鉴于以下代码哪一个是正确的？或者两者都对吗？

使用客户端范围:

<cfset getUsers = Application.Users.getAllUsers()>

<cffunction name="getAllUsers" returntype="query">
    <cfquery name="read" datasource="myDsn">
        Select * 
        from Users
        Where UserID = <cfqueryparam cfsqltype="cf_sql_integer" value="#Client.UserID#">
    </cfquery>
    <cfreturn read>
</cffunction>

使用参数范围:

<cfset getUsers = Application.Users.getAllUsers(UserID = Client.UserID)>

<cffunction name="getAllUsers" returntype="query">
    <cfargument name="UserID" type="any" required= "true">

    <cfquery name="read" datasource="myDsn">
        Select * 
        from Users
        Where UserID = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.UserID#">
    </cfquery>

    <cfreturn read>
</cffunction>

请给我方便的解决方案.提前致谢.