存储过程未返回正确的输出

Question

存储过程声明：

    CREATE PROCEDURE countingObject
        @OBJ1_count INT OUTPUT,
        @OBJ2_count INT OUTPUT,
        @OBJ3_count INT OUTPUT
    AS
    BEGIN
        SELECT @OBJ1_count = (SELECT COUNT(*) FROM OBJECTS 
                              WHERE OBJECT_NAME = 'OBJ1');
        SELECT @OBJ2_count = (SELECT COUNT(*) FROM OBJECTS 
                              WHERE OBJECT_NAME = 'OBJ2');
        SELECT @OBJ3_count = (SELECT COUNT(*) FROM OBJECTS 
                              WHERE OBJECT_NAME='OBJ3')
   END;

执行完成如下

 DECLARE @OBJ1_coun INT 
 DECLARE @OBJ2_coun INT 
 DECLARE @OBJ3_coun INT 

 EXECUTE countingObject @OBJ1_coun OUTPUT, @OBJ1_coun OUTPUT, @OBJ1_coun OUTPUT;

SELECT  
    @OBJ1_coun as OBJ1_Count, 
    @OBJ2_coun as OBJ2_Count, 
    @OBJ3_coun as OBJ3_Count

正在输出输出

相应的表格是

请在我做错事的地方帮助我。

提前致谢。

Answer 1

调用存储过程的方式错误 - 您将所有三个计数都返回到@OBJ1_coun ....

EXECUTE countingObject @OBJ1_coun OUTPUT, @OBJ1_coun OUTPUT, @OBJ1_coun OUTPUT;
                       -- OK ----         ********** WRONG    ***** WRONG  

试试这个：

 DECLARE @OBJ1_coun INT 
 DECLARE @OBJ2_coun INT 
 DECLARE @OBJ3_coun INT 

 EXECUTE countingObject @OBJ1_coun OUTPUT, @OBJ2_coun OUTPUT, @OBJ3_coun OUTPUT;

 SELECT  
     @OBJ1_coun as OBJ1_Count, 
     @OBJ2_coun as OBJ2_Count, 
     @OBJ3_coun as OBJ3_Count

Answer 2

您将所有输出值分配给相同的声明变量@ OBJ1_coun

尝试这个

EXECUTE countingObject @OBJ1_coun OUTPUT, @OBJ2_coun OUTPUT, @OBJ3_coun OUTPUT;