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  1. 使用 C# 從數據庫文件中提取數據

    數據庫 被認為是大多數應用程序的組成部分。無論是桌面、Web 還是移動應用程序，數據庫在存儲、訪問和操作數據方面都起著至關重要的作用。有許多數據庫管理系統可以為您創建和管理數據庫。 但是，可能會出現這樣一種情況，即您需要一種方法來從數據庫文件(即 .db 文件)中提取數據，而無需安裝數據庫管理系統或編寫 SQL 查詢。在這種情況下，您將如何解析數據庫文件並從中獲取數據？ 在本文中，我將演示如何在不編寫 SQL 查詢的情況下輕鬆地從 SQLite 數據庫中的表中提取數據。我將使用 GroupDocs.Parser for .NET API，它支持通過 ADO.NET。 從 SQLite 數據庫 (.db) 中的表中提取數據的步驟 在 Visual Studio 中創建一個新項目。 從 NuGet 安裝適用於 GroupDocs.Parser for .NET。 添加以下命名空間。 using System; using System.Collections.Generic; using System.IO; using GroupDocs.Parser.Data; using GroupDocs.Parser.Options; 準備連接字符串。 string connectionString = string.Format("Provider=System.Data.Sqlite;Data Source={0};Version=3;", "sqlite.db"); 在 Parser 對像中加載數據庫文件。 using (Parser parser = new Parser(connectionString, new LoadOptions(FileFormat.Database))) { // 你的代碼在這裡 } 使用 Parser.GetToc 方法獲取數據庫中表的列表。 // 獲取表格列表 IEnumerable toc = parser....Format("Provider=System.Data.Sqlite;Data...string connectionString = string.Format("Provider=System.Data.Sqlite;Data...

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  2. GroupDocs.Markdown for .NET を発表 — ドキュメントを Markd...

    オンプレミスの .NET API を使用して、PDF、Word、Excel、HTML などを Markdown にエクスポートします。機能、ロードマップ、開始方法をご確認ください。...PDF, Word, Excel, and other formats to Markdown for seamless integration...# Export multiple document formats: Convert popular file types...

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  3. Sample Document ver.1

    Title of the document Subtitle #1 Text is normal, then bold, then italic, then underscore, and finally normal again. Now strikethrough, then double strikethrough, and underscore differently - with ......sentence is formatted as small-caps. And this is formatted as all-caps...Date selector: 09.12.2016 Formatted text box: Место для ввода...

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  4. Sample Document ver.1

    Title of the document Subtitle #1 Text is normal, then bold, then italic, then underscore, and finally normal again. Now strikethrough, then double strikethrough, and underscore differently - with ......sentence is formatted as small-caps. And this is formatted as all-caps...Date selector: 09.12.2016 Formatted text box: Место для ввода...

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  5. Sample Document ver.1

    Title of the document Subtitle #1 Text is normal, then bold, then italic, then underscore, and finally normal again. Now strikethrough, then double strikethrough, and underscore differently - with ......sentence is formatted as small-caps. And this is formatted as all-caps...Date selector: 09.12.2016 Formatted text box: Место для ввода...

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  6. ערוך וניהול מטא נתונים באפליקציות Node.js - Gro...

    גלה כיצד להשתמש ב- GroupDocs.Metadata עבור Node.js כדי להוציא, לעדכן ולהסיר מטאדाटा באפליקציות שלך....as PDFs, Microsoft Office formats, images, audio, video and many...specific properties of file formats, including GPS location data...

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  7. XMP data of HEIC in CSharp

    Document Automation APIs to enrich .NET and Java applications to view, edit, annotate, convert, compare, e-sign, parse, split, merge, redact, or classify documents of almost all the popular file formats....Container)是一個可以包含High-Efficiency Image Format HEIF圖像的容器。 XMP 是一種基於 XML 的...

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  8. convert dwg to pdf in csharp on GroupDocs Blog ...

    convert dwg to pdf in csharp on GroupDocs Blog | Document Automation Solutions for .NET & Java Developers Recent content in convert dwg to pdf in csharp on GroupDocs Blog | Document Automation Solu......tels que DWG, DGN et DWF au format PDF à l'aide de l'API...

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  9. data extraction from PDF invoices in Java on Gr...

    data extraction from PDF invoices in Java on GroupDocs Blog | Document Automation Solutions for .NET & Java Developers Recent content in data extraction from PDF invoices in Java on GroupDocs Blog ......prend en charge différents formats. Recent content in data extraction...

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  10. extract data from PDF in Java on GroupDocs Blog...

    extract data from PDF in Java on GroupDocs Blog | Document Automation Solutions for .NET & Java Developers Recent content in extract data from PDF in Java on GroupDocs Blog | Document Automation So......prend en charge différents formats. Recent content in extract...

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