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所在平台: Udemy |
课程主页: https://www.udemy.com/course/c-linq-guide/
课程评论：没有评论
**C# LINQ 指南** 本课程将带您深入了解 C# 中的语言集成查询 (LINQ)，这是一套将查询功能直接集成到 C# 语言中的技术。 **课程概述：** 您将学习如何使用 LINQ 执行各种强大的数据操作，包括： * **排序 (Sorting)** * **集合操作 (Set Operations)** * **过滤操作 (Filtering Operation)** * **量词操作 (Quantifier Operations)** * **投影操作 (Projection Operation)** * **分区操作 (Partitioning the data)** * **对象连接 (Joining the objects)** * **数据分组 (Grouping the data)** * **生成操作 (Generation operations)** * **元素操作 (Element Operations)** * **数据/对象连接 (Concatenation of data/objects)** * **聚合函数 (Aggregation functions)** 此外，课程还将展示 LINQ 的实际应用案例，例如： * 查找文件夹中的最大文件 * 查找特定文件 * 以及更多实际场景 **LINQ 的背景：** 课程会回顾不同语言用于从各种数据源访问数据的历史，如 SQL 用于访问 SQL Server，XQuery 用于访问 XML。查询被定义为从数据源检索数据的表达式。 **LINQ 查询操作的三个步骤：** 1. **获取数据源 (Obtaining the data from source)** 2. **创建查询 (Creation the query)** 3. **执行查询 (Execution the query)** 通过本课程的学习，您将能够熟练运用 LINQ 来高效地处理和查询 C# 中的数据。
(LINQ) or Language-Integrated Query is the name for a set of technologies based on the integration of query capabilities directly into the C# language. In this tutorial, we will learn how top perform operations such asSortingSet OperationsFiltering OperationQuantifier OperationsProjection OperationPartitioning the dataJoining the objectsGrouping the dataGeneration operationsElement Operations Concatenation of data/objectsAggregation functionsAnd Few use cases of LINQ such as finding largest file from a folder, finding specific files and much more.Different languages have been developed over time to access data from various sources. For example, to access data from sql server, we have SQL also called as Structured Query Language.Similarly, to access data from XML, we have something called Xquery.A query is an expression that retrieves data from a data source.Different languages have been developed over time to access data from various sources. For example, to access data from sql server, we have SQL also called as Structured Query Language.Similarly, to access data from XML, we have something called Xquery.All LINQ query operations consist of three distinct actions:1 Obtaining the data from source.2 Creation the query.3 Execution the query.
