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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. Hapus Tag MP3 menggunakan C# - (ID3, Lirik, APE...

    Hapus tag MP3 dari file mp3 menggunakan C#. Hilangkan tag metadata ID3v1, ID3v2, Lirik, dan APEv2 dari file mp3 menggunakan .NET Metadata API....API untuk menangani berbagai format file dalam . aplikasi .NET...menghapus metadata untuk banyak format file. Kami akan menggunakan...

    blog.groupdocs.com/id/metadata/remove-mp3-tags-...
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  3. WebP naar JPG conversietrucs

    Converteer WebP naar JPG-afbeeldingsformaat met behulp van de gratis online tool voor beeldconversie. Ontwikkelaars kunnen converteren met behulp van .NET- en Java-API's....// Set the conversion format to JPG Format = ImageFileType.Jpg...

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  4. Extraheer afbeeldingen uit PDF-documenten in Java

    Leer hoe u afbeeldingen kunt extraheren uit PDF-bestanden in Java. Extraheer afbeeldingen uit PDF-bestanden of van een specifieke pagina met behulp van Java API binnen uw toepassingen....format("path/image_%d" + image.getFileType()...images) { image.save(String.format("path/image_%d" + image.getFileType()...

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  5. Hapus Tag MP3 di Java - (ID3, Lirik, APE) | API...

    Hapus tag MP3 dari file mp3 di Java. Hapus tag metadata ID3v1, ID3v2, Lirik, dan APEv2 dari file mp3 menggunakan Java Metadata API....menangani metadata berbagai format file. GroupDocs.Metadata for...menghapus metadata untuk berbagai format file . Saya akan menggunakan...

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  6. GroupDocs.Comparison Product Family

    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....angezeigt werden, die das CSV-Format unterstützen, wird es ziemlich...am häufigsten verwendeten Formate der digitalen Welt ist, ist...

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  7. Groupdocs.Blogs

    Groupdocs.Blogs - GroupDocs Blog | Document Automation Solutions for .NET & Java Developers...container die High-Efficiency Image Format HEIF-afbeeldingen kan bevatten...EXIF (Exchangeable Image File Format) is echter de standaard en...

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  8. Search Image Signature in C# in Word, Excel, Po...

    Search Barcode, QR Code, digital, or electronic signature with image data content from any document (DOC, XLS, PPT, PDF) in C# using .NET Signature API....any of the supported file formats. // Search QR Code Signatures... $"image{i}{imageSignature.Format.Extension}"); using (FileStream...

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  9. Add or Remove Annotations | Annotate PDF files ...

    Programmatically add and remove annotations from PDF files in Java. Add arrow, rectangle, ellipse, highlight, watermark annotations and more using Java API....AutoCAD , and digital imaging formats like DICOM . Furthermore, the...list of supported document formats for annotation . Download and...

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  10. Highlighted Results of Exact Phrase Search in T...

    We are pleased to announce the release of version 17.12 of GroupDocs.Search for .NET. GroupDocs.Search for .NET 17.12 has come with 4 enhancements. We have introduced the feature of getting highlighted results of exact phrase search in text. Furthermore, we have improved the calculation of relevance of search results as well as redesigned the syntax of the search query. We would recommend you to enhance your applications using this latest version....enhancement, generating HTML-formatted text with highlighted found...function\""); // Generating HTML-formatted text for the first document...

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