On the toolbar, select Execute to run the query and retrieve data from the Product and ProductCategory tables. Insert data Run this INSERT Transact-SQL code to create a new product in the SalesLT.Product table. Replace the previous query with this one. SQL Copy INSERT INTO [SalesLT].[...
Selection(选择): A select operation selects a subset of rows (records) in a table (relation) that satisfy a selection condition. The ability to select rows from out of complete result set is called Selection. It involves conditional filtering and data staging. The subset can range from no r...
Query: A native SQL query used to retrieve data. If the query produces multiple result sets, only the first will be returned. CreateNavigationProperties: A logical (true/false) that sets whether to generate navigation properties on the returned values (default is true). NavigationPropertyNameGener...
With Active Query Builder you willintegrate a database querying moduleinto your software in a few hours. Active Query Builder is great for… Ad-hoc reporting and data analysis Data export Data import Convenient data browsing Allow lay users to query an SQL database on their own. ...
SQL分类1) DDL(Data Definition Language)数据定义语言 用来定义数据库对象:数据库,表,列等。关键字:create, drop,alter 等 2) DML(Data Manipulation Language)数据操作语言 用来对数据库中表的数据进行增删改。关键字:insert, delete, update 等 3) DQL(Data Query Language)数据查询语言 用来查询数据库中表的...
Use theDatabase.SqlQuerymethod for queries that return types that aren't entities. The returned data isn't tracked by the database context, even if you use this method to retrieve entity types. Use theDatabase.ExecuteSqlCommandfor non-query commands. ...
DATABASE();运行语句效果如下：五、DDL:操作表操作表也就是对表进行增（Create）删（Retrieve）改（...
(query);while(feedIterator.HasMoreResults) {// Execute one continuation of the queryFeedResponse<MyClass> feedResponse =awaitfeedIterator.ReadNextAsync();// Retrieve the ServerSideCumulativeMetrics object from the FeedResponseServerSideCumulativeMetrics metrics = feedResponse.Diagnostics.GetQueryMetrics()...
来源| Learning SQL Generate, Manipulate, and Retrieve Data, Third Edition 作者| Alan Beaulieu 译者| Liangchu 校对| gongyouliu 编辑| auroral-L 全文共21947字,预计阅读时间100分钟。 第七章 数据生成、转换以及操作 1. 使用字符串数据 1.1 字符串生成 1.1.1 包含单引号 1.1.2 包含特殊字符 1.2 字符串...
Machine Learning Services (in database) Queries, stored procedures, views, functions, triggers (T-SQL) Replication, Change Tracking, Change Data Capture Startup, shutdown, restart issues (instance or database) SQL Server resource usage (CPU, Memory, Storage) and Configuration Slow query performanc...