You can create a database connection in theCatalogpane, as explained inDatabase connections inArcGIS Pro, add it to the project, and browse to it from theNew Query Layerdialog box, or you can create the database connection from theNew Query Layerdialog box. Define an SQL query Specify an...
CREATE DATABASE 语句用于创建新的数据库。例如,CREATE DATABASE MyDatabase; 用于创建名为 "MyDatabase" 的新数据库。 ALTER DATABASE:用于修改数据库。ALTER DATABASE 语句用于修改数据库的属性。例如,ALTER DATABASE MyDatabase SET READ_ONLY; 用于将数据库 "MyDatabase" 设置为只读模式。 CREATE TABLE:用于...
CreateDatabaseIfNotExists<TContext> Database Database 属性 方法 BeginTransaction CompatibleWithModel Create CreateIfNotExists Delete Equals ExecuteSqlCommand ExecuteSqlCommandAsync Exists GetHashCode GetType Initialize SetInitializer SqlQuery ToString UseTransaction ...
The Azure SQL Database query editor (preview) is a tool to run SQL queries against Azure SQL Database in the Azure portal. If you don't already have an Azure SQL Database created, see Quickstart: Create a single database. Look for the option to use your offer to Deploy Azure SQL ...
SQLAlchemy 使用query查询的时,可以使用filter()和filter_by() 过滤条件。 filter_by() 参数直接用属性名,比较用一个= filter() 参数 用类名.属性名,比较用 == filter_by() 语法 filter_by() 源码如下 代码语言:javascript 代码运行次数:0 运行 AI代码解释 def filter_by(self, **kwargs): r"""Apply...
create proc pro_Add @i int, @j int, @he int output as set @he = @i+@j System.Data.SqlClient.SqlParameter[] parameters2 = { new System.Data.SqlClient.SqlParameter("@i",100), new System.Data.SqlClient.SqlParameter("@j",100), ...
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...
//组合查询stringsql2 ="select * from view_CateCount;"; List<TempData> tempList = _Context.Database.SqlQuery<TempData>(sql2).ToList();foreach(varitemintempList) { Console.WriteLine(item.Title); } SqlQuery扩展定义: View Code 更多: ...
@Data public class BaseEntity implements Serializable { private static final long serialVersionUID = -4834048418175625051L; @Column(primaryKey = true) private String id; /** * 创建时间;创建时间 */ private LocalDateTime createTime; /** * Update时间;Update时间 */ private LocalDateTime updateTime; ...
To apply the query to all of the files in all of the folders and all of the subfolders in the entire site, clickRecursiveAll. Database connections When you specify an SQL query for database connections, you can also specify whether the read and write statements are synchronized when the qu...