问题描述
我有一个接受两个参数的存储过程.我可以在 Server Management Studio 中成功执行它.它向我展示了我所期望的结果.但是它也返回一个返回值.
I have a stored procedure that takes in two parameters. I can execute it successfully in Server Management Studio. It shows me the results which are as I expect. However it also returns a Return Value.
它添加了这一行，
SELECT 'Return Value' = @return_value
我希望存储过程返回它在结果中显示的表，而不是返回值，因为我从 MATLAB 调用这个存储过程并且它返回的所有信息都是真或假.
I would like the stored procedure to return the table it shows me in the results not the return value as I am calling this stored procedure from MATLAB and all it returns is true or false.
我需要在我的存储过程中指定它应该返回什么吗?如果是这样，我如何指定一个 4 列的表(varchar(10)、float、float、float)?
Do I need to specify in my stored procedure what it should return? If so how do I specify a table of 4 columns (varchar(10), float, float, float)?
推荐答案
过程不能返回这样的表.但是，您可以从过程中的表中进行选择并将其定向到表(或表变量)中，如下所示:
A procedure can't return a table as such. However you can select from a table in a procedure and direct it into a table (or table variable) like this:
create procedure p_x
as
begin
declare @t table(col1 varchar(10), col2 float, col3 float, col4 float)
insert @t values('a', 1,1,1)
insert @t values('b', 2,2,2)
select * from @t
end
go
declare @t table(col1 varchar(10), col2 float, col3 float, col4 float)
insert @t
exec p_x
select * from @t
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