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 ...
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 ...
如果在 RETURNS NULL ON NULL INPUT CLR 函式中指定,表示 SQL Server 可以在收到NULL的任何自變數為 時傳回 NULL ,而不會實際叫用函式的主體。 如果 指定的 <method_specifier> CLR 函式方法已經有表示 RETURNS NULL ON NULL INPUT的自訂屬性,但 CREATE FUNCTION 語句指出 CALLED ON NULL I...
如果 <method_specifier> 中指定的 CLR 函數方法已經有一個指出 RETURNS NULL ON NULL INPUT 的自訂屬性,但 CREATE FUNCTION 陳述式指出 CALLED ON NULL INPUT,則優先使用 CREATE FUNCTION 陳述式。無法為 CLR 資料表值函式指定 OnNULLCall 屬性。 EXECUTE AS 子句 指定執行使用者定義函數時所在的安全性內容。因此...
Applies to: SQL Server 2008 (10.0.x) SP 1 and later versions. Specifies the assembly and method to which the created function name shall refer. assembly_name - must match a value in the name column of SELECT * FROM sys.assemblies;. The name that was used on the CREATE ASSEMBLY statemen...
CREATE ENDPOINT (Transact-SQL) CREATE EVENT NOTIFICATION (Transact-SQL) CREATE FULLTEXT CATALOG (Transact-SQL) CREATE FULLTEXT INDEX (Transact-SQL) CREATE FUNCTION (Transact-SQL) CREATE INDEX (Transact-SQL) CREATE LOGIN (Transact-SQL) CREATE MASTER KEY (Transact-SQL) ...
\Program Files\Microsoft SQL Server\MSSQL16.MSSQLSERVER\MSSQL\DATA\AdventureWorks2022_1.mdf' , MOVE 'AdventureWorks2022_log' TO 'C:\Program Files\Microsoft SQL Server\MSSQL16.MSSQLSERVER\MSSQL\DATA\AdventureWorks2022_1.ldf' , STATS = 10, RECOVERY , REPLACE, RESTORE_OPTIONS = '{"s...
To maintain compatibility with earlier versions of SQL Server, a constraint name can be assigned to a DEFAULT. constant_expression A constant, NULL, or a system function that is used as the default value for the column. memory_optimized_constant_expression A constant, NULL, or a system ...
'cannot access the file' when run as an SQL Agent Job (works when executed from BIDS) 'DECODE' is not a recognized built-in function name. 'DTEXEC.EXE' is not recognized as an internal or external command, 'gacutil' is not...
hive> describe function substr; 查看数组、map、结构 hive> select col1[0],col2['b'],col3.c from complex; 内连接: hive> SELECT sales.*, things.* FROM sales JOIN things ON ( = things.id); 查看hive为某个查询使用多少个MapReduce作业 ...