从过程返回val

ALTER PROCEDURE testme @input  VARCHAR(10),
                       @output VARCHAR(20) output
AS
  BEGIN
      IF @input >= '1'
        BEGIN
            SET @output = 'i am back';

            RETURN;
        END
  END

DECLARE @get VARCHAR(20);

EXEC testme
  '1',
  @get output

SELECT @get 

从过程返回val

ALTER PROCEDURE testme @input  VARCHAR(10),
                       @output VARCHAR(20) output
AS
  BEGIN
      IF @input >= '1'
        BEGIN
            SET @output = 'i am back';

            RETURN;
        END
  END

DECLARE @get VARCHAR(20);

EXEC testme
  '1',
  @get output

SELECT @get 

下面是stored_proc的定义:

create proc product(@a int,@b int)
as
return @a * @b

这是从Python中执行的: Conn = pyodbc.connect('…') Cursor = conn.cursor()

sql = """
SET NOCOUNT ON
declare @r float
exec @r=dbo.product 5,4
select @r
"""
result = cursor.execute(sql)
print (result.fetchall())

你可以这样做:

declare @rowCount int
exec yourStoredProcedureName @outputparameterspOf = @rowCount output

下面是存储过程

create procedure sp1
(
@id as int,
@name as nvarchar(20) out
)
as
begin
select @name=name from employee where id=@id
end

这是执行这个过程的方法

 declare @name1 nvarchar(10)
    exec sp1 1,@name1 out
    print @name1

CREATE PROCEDURE DBO.MY_STORED_PROCEDURE
(@PARAM1VALUE INT,
@PARAM2VALUE INT,
@OUTPARAM VARCHAR(20) OUT)
AS 
BEGIN
SELECT * FROM DBO.PARAMTABLENAME WHERE PARAM1VALUE=@PARAM1VALUE
END

DECLARE @OUTPARAM2 VARCHAR(20)
EXEC DBO.MY_STORED_PROCEDURE 1,@OUTPARAM2 OUT
PRINT @OUTPARAM2