小编Dmi*_*sev的帖子

我有以下查询：

DECLARE @application_number CHAR(8)= '37832904';
SELECT
    la.LEASE_NUMBER AS lease_number,
    la.[LEASE_APPLICATION] AS application_number,
    tnu.[FOLLOWUP_CODE] AS note_type_code -- catch codes not in codes table
FROM [dbo].[lease_applications] la
LEFT JOIN [dbo].tickler_notes_uniq tnu ON tnu.[ACCOUNT_NUMBER] = la.[ACCOUNT_NUMBER]
WHERE la.LEASE_APPLICATION = @application_number
      OR @application_number IS NULL;



SELECT
    la.LEASE_NUMBER AS lease_number,
    la.[LEASE_APPLICATION] AS application_number,
    tnu.[FOLLOWUP_CODE] AS note_type_code -- catch codes not in codes table
FROM [dbo].[lease_applications] la
LEFT JOIN [dbo].tickler_notes_uniq tnu ON tnu.[ACCOUNT_NUMBER] = la.[ACCOUNT_NUMBER]
WHERE la.LEASE_APPLICATION = @application_number; 

这两个查询之间的唯一区别是，我添加了检查该变量是否为NULL的检查。

这些查询的执行计划是：

您可以在此处找到图形化计划

问题是。为什么计划如此不同？

更新： …

我需要增加所有下一行的组号value <> z.z将意味着根据所有下一行将b具有相同的组号.

CREATE TABLE #tmp
(
    a CHAR(1)
  , b INT
);

INSERT INTO #tmp (a
                , b)
VALUES ('a', 1)
     , ('b', 2)
     , ('z', 3)
     , ('c', 4)
     , ('z', 5)
     , ('z', 6)
     , ('d', 7);

SELECT       t.a
           , t.b
           , SUM(v.is_z) OVER (ORDER BY t.b ROWS UNBOUNDED PRECEDING) - ROW_NUMBER() OVER (ORDER BY t.b) group_nbr
  FROM       #tmp                                                 AS t
 CROSS APPLY (SELECT CASE WHEN a = 'z' THEN 2 …

我正在尝试创建VS Code扩展。当我开发时它工作得很好，但是当我创建包并将其安装到它时VS Code失败并出现以下错误：

  ERR Cannot find module 'request': Error: Cannot find module 'request'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:602:15)
    at Function.Module._load (internal/modules/cjs/loader.js:528:25)
    at Function.t._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:729:537)
    at Function.t.getExtensionPathIndex.then.a._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:691:639)
    at Function.t.getExtensionPathIndex.then.r._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:655:197)
    at Module.require (internal/modules/cjs/loader.js:658:17)
    at n (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\loader.js:15:874)
    at openBambooPlanUrlInBrowser.GIT.getGitBranchFromFileName (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:397:41)
    at getGitBranchFromFileName.exec (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:383:17)
    at ChildProcess.exithandler (child_process.js:294:7)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:961:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:248:5)

我的代码：

async openBambooPlanUrlInBrowser(fileName: string) {
    new GIT().getGitBranchFromFileName(fileName, (branch: string) => {
        var config: any = vscode.workspace.getConfiguration('markdown-table-of-contents').get('bitbucketRepositories'); …

存储扩展的用户设置的最佳实践是什么？我可以考虑将它们以某种特定格式保存在文本文件中。是否有使用vscodeAPI的集成方法？

我想克隆一个对象然后更改它，但是当我这样做时，原始对象也会更改：

let items = result.Project.ItemGroup[1].Build;
let newItem = { ...items[0] };
newItem.$.Include = `test`;

在对newItem对象进行赋值后，items[0]值也会更改。

我可以使用 SSDT 发布来创建将 ONLINE 选项设置为 ON 的索引吗？如果我将这样的定义添加到索引发布中，则只是忽略该设置。SQL Server 2017 企业版

有一个简单的代码。我一直以为ROW_NUMBER外部和CROSS APPLY子句中的那个都应该生成相同的输出（在我的示例中，我例外rn = crn）。你能解释为什么不是那样吗？

CREATE TABLE #tmp ( id INT, name VARCHAR(200) );


INSERT  INTO #tmp
VALUES  ( 1, 'a' ),
        ( 2, 'a' ),
        ( 3, 'a' ),
        ( 4, 'b' ),
        ( 5, 'b' ),
        ( 6, 'c' ),
        ( 7, 'a' );


SELECT  name,
        ROW_NUMBER() OVER ( PARTITION BY name ORDER BY id ) AS rn,
        a.crn
FROM    #tmp
        CROSS APPLY (
                        SELECT  ROW_NUMBER() OVER ( PARTITION BY name ORDER BY id ) AS crn
                    ) a; …

我正在尝试将外键添加到数据库，然后更新模型。更新模型后，应用程序出现以下错误：

System.Data.Entity.Core.MetadataException was unhandled
  HResult=-2146232007
  Message=Schema specified is not valid. Errors: 
The relationship 'Accounting.Data.Repository.FK_np_DocumentStatuses_DocumentsTracking_StateId' was not loaded because the type 'Accounting.Data.Repository.DocumentsTracking' is not available.
The following information may be useful in resolving the previous error:
The required property 'DocumentsTrackingChildDocuments' does not exist on the type 'Accounting.Entity.DocumentsTracking'.


The relationship 'Accounting.Data.Repository.FK_np_DocumentsTracking_DocumentsTrackingChildDocuments_DocumentsTrackingId' was not loaded because the type 'Accounting.Data.Repository.DocumentsTracking' is not available.
The following information may be useful in resolving the previous error:
The required property 'DocumentsTrackingChildDocuments' does not exist on the type …

我试图将"帮助"按钮粘贴到电报机器人聊天屏幕的底部.就像是:

据我所知,我需要使用内联键盘.然而

InlineKeyboardButton[] inlineKeyboardButtons = new InlineKeyboardButton[1];
inlineKeyboardButtons[0] = new InlineKeyboardButton("Help");
InlineKeyboardMarkup mrk = new InlineKeyboardMarkup(inlineKeyboardButtons);
await Bot.SendTextMessageAsync(chatId, "<b>Help</b>", replyMarkup: mrk);

但是我得到了以下结果

按钮没有粘在页面底部,如果您键入文本,此按钮会上升.如何让它始终在机器人聊天的底部？

我想生成摘要文本并以某种方式显示它。我很高兴听到任何实现它的方法，但是我认为有可能打开新标签并在那里写下所有内容。如何打开新标签并在其中写入一些文本？安装/更新后，某些软件包会在单独的选项卡中显示发行说明。或者也许有其他方法可以显示相当多的文本？