SQL Server 2008 尝试将 varchar 转换为小数答案

【问题标题】：SQL Server 2008 trying to cast varchar as a decimalSQL Server 2008 尝试将 varchar 转换为小数
【发布时间】：2013-12-28 11:35:54
【问题描述】：

我有来自三列的结果

GameDate    SALES   PRIZES
2013-10-22  2720931 2464831
2013-10-23  3263324 3212128
2013-10-24  2662691 2484328
2013-10-25  4530379 4487401
2013-10-26  1902184 1835012
2013-10-27  2145961 1948877
2013-10-28  1059279 935004
2013-10-29  2493122 2244758
2013-10-30  3309022 2987442

我用这个得到它

select 
    cast(CurrentDate - 7.0/24 as date) as GameDate,
    SUM(TotalBet) as SALES, SUM(TotalWin) as PRIZES
from 
    play WITH (nolock) 
where 
    CurrentDate > '10/1/2013 00:00:00' and CurrentDate < '10/31/2013 00:00:00'
group by 
    cast(CurrentDate - 7.0/24 as date)
order by 
     1;

我想让结果有两位小数，并且无法弄清楚他要转换或转换语句来做到这一点。

【问题讨论】：

假设你尝试过CAST(SUM(TotalBet) AS DECIMAL) as SALES?

标签： sql sql-server-2008 date sum decimal

【解决方案1】：

您必须将字符串拆分并在其中插入一个小数。我假设您希望最后 2 个字符作为小数？

我拿了你的数据并编造了一些东西来证明：

sum (cast (left (TotalBet,len(TotalBet)-2) + '.' + right(totalbet,2) as decimal(10,2)))

SQL Fiddle

【讨论】：