===Example 1=== [oracle@localhost notes]$ vim s81.sql CREATE OR REPLACE FUNCTION check_sal RETURN Boolean IS v_dept_idemployees.department_id%TYPE; v_empnoemployees.employee_id%TYPE; v_sal employees.salary%TYPE; v_avg_salemployees.salary%TYPE; BEGIN v_empno:=205; SELECT salary,department...
It is possible to register a function that has no parameters. In this case, the parentheses must still be coded, with no intervening data types. For example: CREATE FUNCTION WOOFER() ... No two identically-named functions within a schema are permitted to have exactly the same type for al...
CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS return_data_type [ WITH <function_option> [ , ...n ] ] [ AS ] BEGIN...
This CREATE FUNCTION (SQL scalar) statement creates an SQL function at the current server. The function returns a single result.
CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS return_data_type [ WITH <function_option> [ , ...n ] ] [ AS ]...
CREATE FUNCTION [ schema_name. ] function_name ( { @parameter_name [AS] [ type_schema_name. ] parameter_data_type [ = default ] } [ ,...n ] ) RETURNS { return_data_type } [ WITH <clr_function_option> [ ,...n ] ]
The following is a simple example of a function: CREATE OR REPLACE Function FindCourse ( name_in IN varchar2 ) RETURN number IS cnumber number; cursor c1 is select course_number from courses_tbl where course_name = name_in; BEGIN
DROP FUNCTION IF EXISTS TestReferenceDB.dbo.SearchLogPerRegionWithRemainder; CREATE FUNCTION TestReferenceDB.dbo.SearchLogPerRegionWithRemainder(@Region string = "en-gb") RETURNS (@definedRegion, @remainderRegions) /* alternative header RETURNS ( @definedRegion TABLE (UserId int, Start DateTime, ...
CREATE FUNCTION dbo.Foo ( ) RETURNS INT AS BEGIN DECLARE @n INT SELECT @n = 3 RETURN @n END 内嵌表值函数示例 CREATE FUNCTION dbo.Foo ( ) RETURNS TABLE AS RETURN SELECT id, title FROM msgs 多语句表值函数示例(部分) CREATE FUNCTION dbo.fn_FindReports (@InEmpID INTEGER) ...
CREATE TABLE sname_example 1. ( 1. login_sname sysname DEFAULT SUSER_SNAME(), 1. employee_id uniqueidentifier DEFAULT NEWID(), 1. login_date datetime DEFAULT GETDATE() 1. ) 1. GO 1. INSERT sname_example DEFAULT VALUES 1. GO 1. ...