如何在SQL Server中编写存储过程

Question

我有这样的表：

CREATE TABLE [dbo].[tblSingleQuery]
(
    Id Int IDENTITY(1,1),
    ProdId INT,
    ColorId INT,
    IsFront BIT DEFAULT 0
)

我想创建一个带有输入参数@ColorId的存储过程，它将使用where子句ColorId <> @ColorId获取结果。但是当我通过@ColorId = 0时，它应该排除IsFront = 1的记录。

目前我已经创建了这样的存储过程：

CREATE PROCEDURE [dbo].[proc_GetProductColorImage]
    @ColorId INT
AS
BEGIN
   IF @ColorId = 0
   BEGIN
       SELECT * 
       FROM [tblSingleQuery] 
       WHERE IsFront <> 1
   END
   ELSE
   BEGIN
       SELECT * 
       FROM [tblSingleQuery] 
       WHERE ColorId <> @ColorId 
   END
END

如何在单个选择查询中管理此内容？

Answer 1

你可以试试这个：

SELECT * 
FROM [tblSingleQuery] 
WHERE
    (@ColorId = 0 AND IsFront <> 1 ) OR 
    (@ColorId != 0 AND ColorId <> @ColorId )