带参数的存储过程; create or replace procedure p --in表示传入参数 out传出参数, (v_a in number,v_b number ,v_ret out number,v_temp in out number) is begin if(v_a > v_b) then v_ret := v_a; else v_ret := v_b; end if; v_temp :
update product set num = @oldnum - @num where productname = @productname 三.简单FUNCTION 1.不带参数 craete function f_Test() returns @TempTable table(@ID varchar(16),@username,varchar(20)) as begin insert into @TempTable(@ID,@username) select id,username from TB_USER return end 2.带...
DELIMITER//CREATEFUNCTIONcount_by_id(dept_idINT)RETURNSINTLANGUAGESQLNOTDETERMINISTICREADSSQLDATASQLSECURITYDEFINERCOMMENT'查询部门平均工资'BEGINRETURN(SELECTCOUNT(*)FROMemployeesWHEREdepartment_id=dept_id);END//DELIMITER;调用:SET@dept_id=50;SELECTcount_by_id(@dept_id); 创建函数时报错解决 在创建函数时...
'Incorrect syntax near' error while executing dynamic sql 'INSERT EXEC' within a function did not work 'Sort' in exuction plan is showing more than 90 % cost, what to do? 'TRY_CONVERT' is not a recognized built-in function name 'VARCHAR' is not a recognized built-in function name...
7、一般,只有在确认function_name函数是新函数或是要更新的函数时,才使用OR REPALCE关键字,否则容易删除有用的函数。 14楼2022-07-11 13:21 回复 小麻花真-好吃 8、IN,OUT,IN OUT是形参的模式。若省略,则为IN模式。IN模式的形参只能将实参传递给形参,进入函数内部,但只能读不能写,函数返回时实参的值不...
ALTER {PROCEDURE | FUNCTION} sp_name [characteristic……] 1. sp_name:表示存储过程或函数的名称。 characteristic:表示要修改存储过程的哪个部分。取值如下: CONTAINS SQL,表示子程序包含SQL语句,但是,不包含读或写数据的语句。 NO SQL,表示子程序中,不包含SQL语句。 READS SQL DATA,表示子程序中,包含读数据...
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 ...
The function was called, and before it completed execution,SQLCancelorSQLCancelHandlewas called on theStatementHandlefrom a different thread in a multithread application. HY009Invalid use of null pointerThe SQL_ATTR_METADATA_ID statement attribute was set to SQL_TRUE, theCatalogNameargument was a ...
當 SQLProcedureColumns 傳回SQL_ERROR或SQL_SUCCESS_WITH_INFO時,藉由呼叫 具有handleType 為SQL_HANDLE_STMT 的 SQLGetDiagRec 和 StatementHandle 控制碼 ,即可取得相關聯的 SQLSTATE 值。 下表列出 SQLProcedureColumns 通常傳 回的SQLSTATE 值,並說明此函式內容中的每個值;標記法 「(DM)」 在驅動程式管理員...
適用於:SQL Server 2014 (12.x) 和更新版本,以及 Azure SQL Database。 確定程序所參考的資料表無法卸除或改變。 原生編譯預存程序需要 SCHEMABINDING。 (如需詳細資訊,請參閱原生編譯的預存程序。)SCHEMABINDING 限制和使用者定義函式的相關限制相同。 如需詳細資訊,請參閱 CREATE FUNCTION (Transact-SQL) 中的...