PolyglotNotebooksStudy/Docs/多语言笔记-练习.ipynb

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      "text/html": [
       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.Identity.Client, 4.66.2</span></li></ul></div></div>"
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       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.Extensions.Configuration, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.Binder, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.CommandLine, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.EnvironmentVariables, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.ini, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.json, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.KeyPerFile, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.UserSecrets, 9.0.4</span></li><li><span>Microsoft.Extensions.Configuration.xml, 9.0.4</span></li><li><span>Microsoft.Extensions.DependencyInjection, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging.Configuration, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging.Console, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging.Debug, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging.EventSource, 9.0.4</span></li><li><span>Microsoft.Extensions.Options, 9.0.4</span></li><li><span>Microsoft.Extensions.Options.ConfigurationExtensions, 9.0.4</span></li><li><span>Microsoft.Extensions.Options.DataAnnotations, 9.0.4</span></li></ul></div></div>"
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   "source": [
    "//全局初始化\n",
    "#!import \"./Base.ipynb\"\n",
    "\n",
    "#r \"nuget:Microsoft.Identity.Client,4.66.2\"\n",
    "using Microsoft.DotNet.Interactive;\n",
    "using Microsoft.DotNet.Interactive.Commands;"
   ]
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   "execution_count": null,
   "id": "a118a9b7",
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       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.DotNet.Interactive.SqlServer, 1.0.0-beta.25177.1</span></li></ul></div></div>"
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     "metadata": {},
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     "data": {
      "text/plain": [
       "Loading extension script from `C:\\Users\\ruyu\\.nuget\\packages\\microsoft.dotnet.interactive.sqlserver\\1.0.0-beta.25177.1\\interactive-extensions\\dotnet\\extension.dib`"
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     "data": {
      "text/html": [
       "<details><summary>Query Microsoft SQL Server databases.</summary>\r\n",
       "<p>This extension adds support for connecting to Microsoft SQL Server databases using the <code>#!connect mssql</code> magic command. For more information, run a cell using the <code>#!sql</code> magic command.</p>\r\n",
       "</details>"
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     "data": {
      "text/markdown": [
       "Scaffolding a `DbContext` and initializing an instance of it called `SqlServerKernelWithEF` in the C# kernel."
      ]
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     "data": {
      "text/html": [
       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Humanizer, 2.14.1</span></li><li><span>humanizer.core, 2.14.1</span></li><li><span>microsoft.data.sqlclient, 5.2.2</span></li><li><span>Microsoft.EntityFrameworkCore.Design, 9.0.0</span></li><li><span>microsoft.entityframeworkcore.sqlserver, 9.0.0</span></li><li><span>Microsoft.Identity.Client, 4.66.2</span></li></ul></div></div>"
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      "text/plain": [
       "Kernel added: #!sql-SqlServerKernelWithEF"
      ]
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   "source": [
    "//引入 SqlServer 的 NuGet 包\n",
    "#r \"nuget:Microsoft.DotNet.Interactive.SqlServer,*-*\"\n",
    "//#r \"nuget:Microsoft.Identity.Client,4.66.2\"\n",
    "\n",
    "//优化用法\n",
    "{\n",
    "    //内核名：魔法命令中的内核名，执行后会自动加 sql- 前缀，做为内核名被使用\n",
    "    string magicCommandKernelName =  \"SqlServerKernelWithEF\";\n",
    "    string completeKernelName = \"sql-\" + magicCommandKernelName;\n",
    "\n",
    "    //引入内核：可重复执行\n",
    "    if(Microsoft.DotNet.Interactive.Kernel.Root.FindKernelByName(completeKernelName) == null)\n",
    "    {\n",
    "        var connectKernelCode = $\"#!connect mssql --kernel-name {magicCommandKernelName} \\\"Server=.\\\\SQL2019;Database=study;User Id=sa;Password=gly-bicijinlian;TrustServerCertificate=true;\\\" --create-dbcontext\";\n",
    "        await Kernel.Root.SendAsync(new SubmitCode( connectKernelCode,  \"csharp\"));\n",
    "    }\n",
    "    else\n",
    "    {\n",
    "        Console.WriteLine($\"名为 {completeKernelName} 的内核已存在。需要新内核时，请为--kernel-name参数使用不同的值, 本次执行不做任何更改！\");\n",
    "    }\n",
    "}"
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   "cell_type": "code",
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   "metadata": {
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   "outputs": [
    {
     "ename": "Error",
     "evalue": "(6,1): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEFContext”(是否缺少 using 指令或程序集引用?)\r\n(7,19): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEF”(是否缺少 using 指令或程序集引用?)\r\n(6,38): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEFContext”(是否缺少 using 指令或程序集引用?)",
     "output_type": "error",
     "traceback": [
      "(6,1): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEFContext”(是否缺少 using 指令或程序集引用?)\r\n",
      "(7,19): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEF”(是否缺少 using 指令或程序集引用?)\r\n",
      "(6,38): error CS0246: 未能找到类型或命名空间名“SqlServerKernelWithEFContext”(是否缺少 using 指令或程序集引用?)"
     ]
    }
   ],
   "source": [
    "//连接建立后，执行环境中就有了相关的类：DBContext等\n",
    "using Microsoft.EntityFrameworkCore;\n",
    "using Microsoft.EntityFrameworkCore.SqlServer;\n",
    "using Microsoft.EntityFrameworkCore.Scaffolding;\n",
    "\n",
    "SqlServerKernelWithEFContext a = new SqlServerKernelWithEFContext();\n",
    "var context = new SqlServerKernelWithEF();\n",
    "var t = context.Students.ToList<Student>();\n",
    "display(t);\n",
    "\n",
    "FormattableString fs = $\"select * from Student;\";\n",
    "var c = context.Database.ExecuteSql(fs);\n",
    "display(c);"
   ]
  }
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