SQL把ID相同的记录合并成同一条记录.需SQL 2005及以上.
Code
DECLARE @Table TABLE(id int, value varchar(10))INSERT @Table SELECT 1, 'AA'UNION ALL SELECT 1, 'BB'UNION ALL SELECT 2, 'AAA'UNION ALL SELECT 2, 'BBB'UNION ALL SELECT 2, 'CCC'UNION ALL SELECT 3, 'AAAA'UNION ALL SELECT 3, 'BBBB'UNION ALL SELECT 3, 'XXXX'SELECT * FROM( SELECT DISTINCT id FROM @Table) AOUTER APPLY( SELECT [values]= STUFF(REPLACE(REPLACE( ( SELECT value FROM @Table N WHERE id = A.id FOR XML AUTO ), '<N value="', ','), '"/>', ''), 1, 1, '')) N
转载于:https://www.cnblogs.com/KenBlove/archive/2009/04/03/1428996.html