日期:2014-05-17 浏览次数:20992 次
IF OBJECT_ID('testBooks') IS NOT NULL
BEGIN
DROP TABLE testBooks
END
GO
CREATE TABLE testBooks
(
ID INT,
bookName nvarchar(maX), -- 重复项
Author nvarchar(maX), -- 重复项
出版社 nvarchar(max),
出版年 int,
ISBN nvarchar(maX), -- 重复项
分类号 nvarchar(max),
简介 nvarchar(max),
)
GO
INSERT INTO testBooks( ID, bookName,Author,出版社,出版年,ISBN )
SELECT 1,'红楼梦','张三','小鸡出版社',2012,'1234567' union all
SELECT 2,'红楼梦','张三痪','小鸡出版社',2012,'1234567' union all
SELECT 3,'红楼梦','张三著','小鸡出版社',2012,'1234567' union all
SELECT 4,'红楼梦','张三编','小鸡出版社',2012,'1234567' union all
SELECT 5,'红楼梦','张三','小鸡出版社',2012,'1234567' union all
SELECT 6,'梦之声','李四','小鸡出版社',2012,'123456' union all
SELECT 7,'梦之声','李四著','小鸡出版社',2012,'123456' union all
SELECT 8,'梦之声','王五','小鸡出版社',2012,'123456'
--以上数据, 应该删除3,4,5,7, 并保留 1, 2, 6, 8 三条才是对的
--定义要删除的记录的 ID
DECLARE @ID_table TABLE (Id INT);
--得到重复的记录
;WITH t1 AS (
SELECT * FROM testBooks a WHERE EXISTS
(
SELECT 1 FROM testBooks b WHERE a.id !=b.ID AND a.ISBN=b.ISBN AND a.bookName=b.bookName AND
(a.Author=b.Author OR a.Author LIKE '%'+b.Author+'著' OR a.Author LIKE '%'+b.Author+'编'
OR b.Author LIKE '%'+a.Author+'著' OR b.Author LIKE '%'+a.Author+'编'
)
)
),
--将重复的记录分离出对应的 ISBN
temp AS (
SELECT a.ISBN FROM testBooks a WHERE EXISTS
(
SELECT 1 FROM testBooks b WHERE a.id !=b.ID AND a.ISBN=b.ISBN AND a.bookName=b.bookName AND
(a.Author=b.Author OR a.Author LIKE '%'+b.Author+'著' OR a.Author LIKE '%'+b.Author+'编'
OR b.Author LIKE '%'+a.Author+'著' OR b.Author LIKE '%'+a.Author+'编'
)
)
GROUP BY a.ISBN
)
INSERT INTO @ID_table
SELECT ID FROM testBooks c WHERE c.ISBN IN (
SELECT c.ISBN FROM temp
) AND c.ID NOT IN (SELECT MIN(ID) FROM testBooks tb WHERE tb.ISBN =c.ISBN)
AND c.ID IN (SELECT id FROM t1)
ORDER BY c.ID