Below we have listed down some of the differences between stored procedure and function in PL/SQL:Stored ProcedureFunction May or may not returns a value to the calling part of program. Returns a value to the calling part of the program. Uses IN, OUT, IN OUT parameter. Uses only IN ...
procedure:存储过程 eg: create or replace procedure p --这儿是和plsql的区别 is cursor c is select * from emp2 for update; --v_temp c%rowtype; begin for v_temp in c loop if(v_temp.sal< 2000) then update emp2 set sal=sal*2 where current of c ; elsif(v_temp.sal = 5000) the...
3.从information_schema.Routines表中查看存储过程和函数的信息SELECT*FROMinformation_schema.RoutinesWHEREROUTINE_NAME='email_by_id'ANDROUTINE_TYPE='FUNCTION';SELECT*FROMinformation_schema.RoutinesWHEREROUTINE_NAME='show_min_salary'ANDROUTINE_TYPE='PROCEDURE';# 4.存储过程、函数的修改存储过程和存储函数的修改...
SQL Stored Procedure and Function Anything can be programmable with defined syntax and common lib. 1 ALTER PROCEDURE [dbo].[sp_GetLaborHourPerDayEmployee](@au_Date DATETIME, @au_employeeID VARCHAR(30)) 2 -- Add the parameters for the stored procedure here 3 AS 4 BEGIN 5 -- SET NOCOUNT...
Why is this better as a function? First of all, it makes intuitive sense to me. The subprogram takes inputs and returns a single result, and that’s what a function is for. Also, as stated earlier, functions can be used within standard SQL, so we can do this: ...
已呼叫函式,並在完成執行之前,SQLCancel或SQLCancelHandle在多線程應用程式中StatementHandle上呼叫。 HY009無效的 Null 指標使用SQL_ATTR_METADATA_ID語句屬性已設定為 SQL_TRUE、CatalogName自變數為 null 指標,而且 SQL_CATALOG_NAMEInfoType會傳回支援類別目錄名稱。
They can be used within SELECT, WHERE, GROUP BY, and HAVING clauses Let’s show a practical example of the usage of functions in SQL. 2.1. Practical Example For illustration, we’ll use theStudenttable of the Baeldung University database. Let’s create a function to calculate the age of...
HY009无效使用 null 指针SQL_ATTR_METADATA_ID语句属性设置为SQL_TRUE,CatalogName参数为空指针,SQL_CATALOG_NAMEInfoType返回目录名称受支持。 (DM) SQL_ATTR_METADATA_ID 语句属性设置为SQL_TRUE,SchemaName、ProcName或ColumnName参数为 null 指针。 HY010函数序列错误(DM) 为与StatementHandle关联的连接句柄...
The function was called, and before it completed execution, SQLCancel or SQLCancelHandle was called on the StatementHandle from a different thread in a multithread application. HY009 Invalid use of null pointer The SQL_ATTR_METADATA_ID statement attribute was set to SQL_TRUE, the CatalogName ...
SQL -- Passing the function value as a variable.DECLARE@CheckDate datetime;SET@CheckDate =GETDATE(); EXEC dbo.uspGetWhereUsedProductID 819, @CheckDate; GO Specify parameter names When creating a procedure and declaring a parameter name, the parameter name must begin with a single@character and...