1
我的逻辑查询有什么问题?我只是想计算用户评级在我的查询中将int转换为数据类型数值的'算术溢出错误'错误
UPDATE MyTable
SET RatingAvg = CASE
WHEN RatingAvg = 0 THEN @Rating
ELSE CAST((((CAST(RatingAvg AS DECIMAL(7,6)) * CAST(ReviewCount AS DECIMAL(7,6))) + CAST(@Rating AS DECIMAL(7,6)))/CAST((ReviewCount + 1)AS DECIMAL(7,6))) AS DECIMAL(7,6))
END
请添加样本数据 –
什么是数据类型'@ Rating'? –
这是一个开始的好地方:[如何在公共论坛上发布T-SQL问题](http://spaghettidba.com/2015/04/24/how-to-post-at-sql-question-上一个公开论坛/) – Marusyk