Use a TADOStoredProc object when a client application must use a stored procedure in a database. A stored procedure is a grouped set of statements, stored as part of a database抯 metadata (just like tables, indexes, and domains), that performs a frequently-repeated, database-related task on the server and passes results to the client.Note: Not all database servers support stored procedures. See a specific server抯 documentation to determine if it supports stored procedures.Many stored procedures require a series of input arguments, or parameters, that are used during processing. TADOStoredProc provides a Parameters property that enables an application to set these parameters before executing the stored procedure.TADOStoredProc reuses the Parameters property to hold the results returned by a stored procedure. Parameters is a collection of TParameter objects, each representing an individual parameter for the stored procedure. Depending on server implementation, a stored procedure can return either a single set of values, or a result set similar to the result set returned by a query.
(@a int,
@b int output)
as
set @b=23调用
declare @b int
exec Example
1,@b output
由外部傳進一個參數﹐然后在表中以此參數過濾﹐再統計出某一字段的sum值﹐再通過輸出參數輸出。
問﹕1﹑存儲過程該怎么寫﹖
2﹑在delphi中該怎么調用