如果指定 SECURED 選項,則陳述式的授權 ID 必須包括 SECADM 或 CREATE_SECURE_OBJECT 權限 (SQLSTATE 42501)。 語法 option-listSQL-function-body parameter-declaration INOUT1INOUTparameter-namedata-type1default-clause built-in-typeanchored-data-typearray-type-namecursor-type-namedistinct-type-nameREF(type...
1 OUT and INOUT are valid only if RETURNS specifies a scalar result and the SQL-function-body is a compound SQL (compiled) statement. 2 The FOR BIT DATA clause can be specified in any order with the other column constraints that follow. The FOR BIT DATA clause cannot be specified with ...
> CREATE TEMPORARY FUNCTION hello() RETURNS STRING RETURN 'Hello World!'; > SELECT hello(); Hello World! -- Create a permanent function with parameters. > CREATE FUNCTION area(x DOUBLE, y DOUBLE) RETURNS DOUBLE RETURN x * y; -- Use a SQL function in the SELECT clause of a query. >...
Creating a CLR function in SQL Server involves the following steps: Define the function as a static method of a class in a language supported by the .NET Framework. For more information about how to program functions in the common language runtime, see CLR User-Defined Functions. Then, compi...
使用Transact-SQL 语法: CREATE FUNCTION DoubleIt ( @Input INT ) RETURNS INT AS DECLARE @Result INT SELECT @Result = @Input * 2 RETURN @Result 语句SELECT DoubleIt( 5 ) 返回值 10。 示例3 创建一个用 Java 编写的外部函数: CREATE FUNCTION dba.encrypt( IN name char(254) ) RETURNS VARCHAR ...
In this article Syntax Arguments Best practices Data types Show 7 more Applies to: SQL Server Azure SQL Database Azure 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 parameter...
--Transact-SQL Multistatement Table-valued Function Syntax CREATE FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ = default ] [READONLY] } [ ,...n ] ] ) RETURNS @return_variable TABLE <table_type_definition> ...
It explains the syntax first and then creates a function using a sample table. Create a Function in MySQL A stored program to which we can pass one or multiple parameters and get a value in return is known as a function. It has a set of SQL statements to accomplish some tasks and ...
MySQL中的CREATE FUNCTION授权 在MySQL中,CREATE FUNCTION是用于创建用户自定义函数的语句。用户自定义函数是一组SQL语句的集合,可以在MySQL中调用和使用。为了保证数据库的安全性和正确性,我们需要对CREATE FUNCTION语句进行授权,以限制用户对函数的创建和修改。
MaxCompute支持通过create sql function命令创建SQL UDF,且通过此命令创建的UDF为永久SQL UDF,即创建完成后会存入MaxCompute的Meta系统后(即可在MaxCompute的函数列表中查询到此UDF),后续所有的查询操作都可以调用该函数。 说明 创建临时SQL UDF的详情请参见FUNCTION。