mysql随手记

时间：2020-07-18 22:59:27 收藏：0 阅读：107

-- ROUND截取小数点2位

ROUND(SUM(pay_mony),2)

-- IFNULL判断是否为空，并替换为空数据

IFNULL(totalmoney,0)

SELECT
asset_state `name`,
COUNT(1) `value`,
ROUND(SUM(use_area),2) data2
FROM
sta_asset_management
WHERE
asset_state IS NOT NULL
AND asset_state != ‘‘
GROUP BY
asset_state
ORDER BY
`value` DESC;