CreateTableStatement CreateTableStatement 构造函数 属性 AsEdge AsFileTable AsNode CtasColumns 定义 FederationScheme FileStreamOn OnFileGroupOrPartitionScheme 选项 SchemaObjectName SelectStatement TextImageOn 方法 CreateTriggerStatement CreateTypeStatement CreateTypeTableStatement CreateTypeUddtStatement Creat...
table_name can be a maximum of 128 characters, except for local temporary table names (names prefixed with a single number sign (#)) that can't exceed 116 characters. AS FileTable Applies to: SQL Server 2012 (11.x) and later. Creates the new table as a FileTable. You don't ...
The Simple SQL CREATE TABLE Statement:Using simple SQL CREATE TABLE statement we can create table with multiple columns, with each column definition consist of name, data types and optically constrains on that column value. SQL CREATE TABLE ... SELECT Statement:In SQL we can crate table as the...
但是,CREATE TABLE AS SELECT FROM语句也可以用于替换现有表的内容。为此,只需在CREATE TABLE语句中指定现有表的名称,并将新的SELECT语句的结果存储在该表中。 请注意,CREATE TABLE AS SELECT FROM语句只能在SQL Server 2000及更高版本中使用。 此外,CREATE TABLE AS SELECT FROM语句还可以在选择的列中使用聚合函数...
1. 打开SQL Server Management Studio,如图2所示。图2 SQL Server Management Studio2. 选择需要创建表的数据库,展开文件夹,选择“表”,单击鼠标右键,选择“新建表”,如图3所示。图3 选择“新建表”菜单项3. 输入列的名称、数据类型、长度、是否允许为空等属性,如图4所示。
To create a table with a primary key, we can write the following command. In MySQL CREATETABLECompanies (idint,namevarchar(50), addresstext, emailvarchar(50), phonevarchar(10), PRIMARYKEY(id) ); In Oracle and SQL Server CREATETABLECompanies (idintNOTNULLPRIMARYKEY,namevarchar(50), ...
SELECT name FROM sys.databases WHERE name = N'TutorialDB' ) CREATE DATABASE [TutorialDB] GO USE [TutorialDB] -- Create a new table called 'Customers' in schema 'dbo' -- Drop the table if it already exists IF OBJECT_ID('dbo.Customers', 'U') IS NOT NULL ...
SQL CREATE TABLE Example The following example creates a table called "Persons" that contains five columns: PersonID, LastName, FirstName, Address, and City: ExampleGet your own SQL Server CREATETABLEPersons ( PersonID int, LastName varchar(255), ...
CREATE TABLE AS SELECT dans Azure Synapse Analytics et Microsoft Fabric crée une table en fonction de la sortie d’une instruction SELECT. CTAS offre le moyen le plus simple et le plus rapide de créer une copie de table.
select_statement UNION [ALL] selectstatement [UNION [ALL] selectstatement][…n] 其中selectstatement为待联合的SELECT查询语句。 ALL选项表示将所有行合并到结果集合中。不指定该项时,被联合查询结果集合中的重复行将只保留一 行。 联合查询时,查询结果的列标题为第一个查询语句的列标题。因此,要定义列标题必须...