mysql 行转列统计查询

-- ------------------------
-- 列转行统计数据
-- ------------------------
select * from dgj_fee_config

-- ------------------------

-- 列转行统计数据

-- ------------------------

SELECT
c_building_id AS buildingId,
MAX(
CASE c_fee_name
WHEN '水费' THEN
CONCAT(c_fee_rate, c_fee_unit)
ELSE
0
END
) AS wat,
MAX(
CASE c_fee_name
WHEN '电费' THEN
CONCAT(c_fee_rate, c_fee_unit)
ELSE
0
END
) AS elc,
MAX(
CASE c_fee_name
WHEN '气费' THEN
CONCAT(c_fee_rate, c_fee_unit)
ELSE
0
END
) AS gas,
MAX(
CASE c_fee_name
WHEN '物业费' THEN
CONCAT(c_fee_rate, c_fee_unit)
ELSE
0
END
) AS pcm
FROM
dgj_fee_config
GROUP BY
c_building_id

-- ------------------------

-- 查询结果

-- ------------------------