sql语句的字段升序排列

 包含两个点：

1.根据name字段升序排序。（这里自动按照字符集编码的顺序）

2.<>的用法。这里是直接是不等于，不仅仅局限于数字的比较，还有字符串的比较。另外由于是xml文件要写成"<>"的形式。

	
	
				SELECT * FROM ((SELECT
			b.id,
			b.id AS building_id,
			b.building_name NAME,
			b.merchant_district_id pId,
			'building' AS type,
			0 AS checked
		FROM
			xxx b
		WHERE
		b.del_stauts = 1
		
		AND b.merchant_district_id = #{merchantDistrictId}
		
		AND b.id NOT IN (
			SELECT
				g.building_id
			FROM
				xx g
			LEFT JOIN x eig ON eig.id = g.group_id
			WHERE
				 g.ref_type = 2
			AND g.ref_status = 1
		
			AND eig.instrument_attribute = #{instrumentAttribute}
		
			
				AND g.group_id <> #{groupId}
			
		)
		 )
		UNION ALL
			(SELECT
				f.id,
				f.building_id,
				f.floor NAME,
				f.building_id pId,
				'floor' AS type,
				0 AS checked
			FROM
				xxxx f
			WHERE
				f. STATUS = 1
				AND f.building_id IS NOT NULL
				
				AND f.merchant_district_id = #{merchantDistrictId}
				
			AND f.id NOT IN (
				SELECT
					g.floor_id
				FROM
					xx g
			LEFT JOIN x eig ON eig.id = g.group_id
				WHERE
			 g.ref_type = 1
			 AND g.ref_status = 1
		
			AND eig.instrument_attribute = #{instrumentAttribute}
		
			
				AND g.group_id <> #{groupId}
			
			)
		 )) t ORDER BY t.name ASC