Connect to a SQL Server instance Create a database Create a table Show 4 more Applies to: SQL Server Get started using SQL Server Management Studio (SSMS) to connect to your SQL Server instance and run some Transact-SQL (T-SQL) commands. Note While Microsoft Entra ID is the new nam...
CREATE TABLE 语句用于创建新的数据库表,定义表的结构和列。例如,CREATE TABLE Employees (EmployeeID INT, FirstName VARCHAR(50), LastName VARCHAR(50));用于创建名为 "Employees" 的新表。 ALTER TABLE:用于修改表。ALTER TABLE 语句用于修改现有表的结构,例如添加、删除或修改列。例如,ALTER TABLE Customers ...
注意:虽然索引视图是在SQL Server 2000中已经加入,但只有SQL Serer 2008的企业版才支持索引视图的匹配。 我们看一个例子: Create table Table1(id int primary key ,submitdate datetime,commment nvarchar(200));Create table Table2(id int primary key identity,commentid int ,product nvarchar(200));insert...
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...
Create a database Create a table Insert and update data in a table Show 3 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Analytics Platform System (PDW) SQL database in Microsoft Fabric Note The Get Started Querying with Transact-SQL learning path provides more...
将以下 T-SQL 代码片段粘贴到查询窗口中: SQL USE[TutorialDB]-- Create a new table called 'Customers' in schema 'dbo'-- Drop the table if it already existsIFOBJECT_ID('dbo.Customers','U')ISNOTNULLDROPTABLEdbo.CustomersGO-- Create the table in the specified schemaCREATETABLEdbo.Customers ...
In this puzzle, we’re going to learn how to create a cross tab query using SQL Server. In this puzzle, we’re going to learn how to create a cross tab query using SQL Server. Cross tabs are a great way to summarize data. And given that Business Intelligence is a hot topic, knowin...
SQL Copy IF OBJECT_ID ( 'dbo.SpatialTable', 'U' ) IS NOT NULL DROP TABLE dbo.SpatialTable; GO CREATE TABLE SpatialTable ( id int IDENTITY (1,1), GeogCol1 geography, GeogCol2 AS GeogCol1.STAsText() ); GO INSERT INTO SpatialTable (GeogCol1) VALUES (geography::STGeomFromText('LINE...
Create a database Create a table 显示另外 4 个 Applies to:SQL Server Get started using SQL Server Management Studio (SSMS) to connect to your SQL Server instance and run some Transact-SQL (T-SQL) commands. 备注 While Microsoft Entra ID is thenew name for Azure Active Directory (Azure AD...
In this quickstart, you learn how to use the MSSQL extension for Visual Studio Code to connect to a database, whether it's running locally, in a container, or in the cloud. Then you learn how to use Transact-SQL (T-SQL) statements to create a database, define a table, insert data...