drop function 表值函数名称; go --创建表值函数 create functino [schema_name.] function_name (@parameter_name [as] [type_schema_name.] parameter_data_type [ = default ] [ readonly],..n) returns @tablename table ( @parameter_name [as] [type_schema_name.] parameter_data_type [ = de...
CREATE FUNCTION [ owner_name.] function_name ( [ { @parameter_name [AS] scalar_parameter_data_type [ = default ] } [ ,...n ] ] ) RETURNS scalar_return_data_type [ WITH < function_option> [ [,] ...n] ] [ AS ] BEGIN function_body RETURN scalar_expression END 1. 2. 3. 4...
用户定义函数可使用ALTER FUNCTION修改,使用DROP FUNCTION删除。 Transact-SQL 语法约定 Scalar Functions CREATE FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ][ type_schema_name. ] parameter_data_type [ = default ] } [ ,...n ] ] ) RETURNS return_data_type [ WITH <...
level0_object_type是varchar (128),默认值为 NULL。 有效输入包括:ASSEMBLY、CONTRACT、EVENT NOTIFICATION、FILEGROUP、MESSAGE TYPE、PARTITION FUNCTION、PARTITION SCHEME、REMOTE SERVICE BINDING、ROUTE、SCHEMA、SERVICE、USER、TRIGGER、TYPE、PLAN GUIDE 和 NULL。 [ @level0name=] {level0_object_name} 所指定的...
如果未以@parameter = value格式传递参数值,则必须按 CREATE PROCEDURE 语句中所列的参数顺序(从左到右)提供值。 最好指定参数名称,以便提高可读性和与存储过程的未来版本的兼容性。 警告 任何采用@parameter = value格式传入的参数如果拼写错误,就会导致 SQL Server 生成错误,并阻止过程执行。
注意:从SQL Server 2012 (11.x) Service Pack 3 和 SQL Server 2014 (12.x) Service Pack 1 开始,此行为由数据库引擎控制,跟踪标志 1236 不再有效。范围:仅全局。 1237 允许ALTER PARTITION FUNCTION 语句遵从用户定义的当前会话死锁优先级,而不是成为默认情况下可能的死锁牺牲品。 有关详细信息,请参阅 KB...
Applies to:SQL ServerAzure SQL DatabaseAzure SQL Managed Instance Creates a user-defined function (UDF), which is a Transact-SQL or common language runtime (CLR) routine. A user-defined function accepts parameters, performs an action such as a complex calculation, and returns the result of ...
1 Defined in Microsoft.SqlServer.Types.dll, which is installed with SQL Server and can be downloaded from the SQL Server feature pack. Automatic data type conversion with output parameters A CLR method can return information to the calling code or program by marking an input parameter with the ...
SQL Server 和 Azure SQL 数据库中存储过程的 Transact-SQL 语法: syntaxsql 复制 CREATE [ OR ALTER ] { PROC | PROCEDURE } [schema_name.] procedure_name [ ; number ] [ { @parameter_name [ type_schema_name. ] data_type } [ VARYING ] [ NULL ] [ = default ] [ OUT | OUTPUT | [...
For all installations of SQL Server, the default compatibility level is associated with the version of the Database Engine, as seen in this table. For new development work, always plan to certify applications on the latest database compatibility level. New Transact-SQL syntax isn't gated by da...