The column is computed from an expression that uses other columns in the same table. For example, a computed column can have the definition: cost AS price * qty. The expression can be a noncomputed column name, constant, function, variable, and any combination of these connected by one or...
Pour Azure Synapse Analytics, la table est stockée dans une base de données de distribution sur chaque nœud de calcul. Pour Analytics Platform System (PDW), la table est stockée dans un groupe de fichiers SQL Server qui englobe le nœud de calcul. Il s'agit du comportement par...
程序集:Microsoft.SqlServer.Management.SqlParser(在 Microsoft.SqlServer.Management.SqlParser.dll 中) 语法 C# ITableVariableCreateTableVariable(stringname, ITableDataType dataType) 参数 name 类型:System. . :: . .String The name of the variable to create. ...
DECLARE @variable_name data_type [ = initial_value ]; 其中,@variable_name是变量的名称,data_type是变量的数据类型,initial_value是变量的初始值(可选)。 二、CREATE TABLE语句 在SQL Server中,使用CREATE TABLE语句可以创建一个新的表。CREATE TABLE语句定义了表的结构,包括表名、列名、数据类型和约束等。
CREATE SERVER CREATE SHARE CREATE STREAMING TABLE CREATE TABLE 數據表屬性和數據表選項 CREATE TABLE 使用 Hive 格式 CREATE TABLE CONSTRAINT CREATE TABLE 使用中 CREATE TABLE LIKE CREATE VIEW CREATE VOLUME DECLARE VARIABLE DROP CATALOG DROP CONNECTION ...
@TVPLocationTableTypeREADONLYASSETNOCOUNTONINSERTINTO[AdventureWorks].[Production].[Location]([Name],[CostRate],[Availability],[ModifiedDate])SELECT*,0,GETDATE()FROM@TVP;GO/*声明一个变量来引用该类型*/DECLARE@LocationTVPASLocationTableType;/* Add data to the table variable. */INSERTINTO@Location...
DataRetentionTableOption DataTypeReference DataTypeSequenceOption DbccCommand DbccNamedLiteral DbccOption DbccOptionKind DbccStatement DeallocateCursorStatement DeclareCursorStatement DeclareTableVariableBody DeclareTableVariableStatement DeclareVariableElement DeclareVariableStatement DefaultConstraintDefinition DefaultLite...
*/ DECLARE @LocationTVP AS LocationTableType; /* Add data to the table variable. */ INSERT INTO @LocationTVP (LocationName, CostRate) SELECT [Name], 0.00 FROM [AdventureWorks2022].[Person].[StateProvince]; /* Pass the table variable data to a stored procedure. */ EXEC usp_Insert...
syntaxsql 複製 CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS @return_variable TABLE <table_type_definition> [ WITH <functio...
*/ DECLARE @LocationTVP AS LocationTableType; /* Add data to the table variable. */ INSERT INTO @LocationTVP (LocationName, CostRate) SELECT [Name], 0.00 FROM [AdventureWorks2022].[Person].[StateProvince]; /* Pass the table variable data to a stored procedure. */ EXEC usp_Insert...