如何在SQL Server 2012中使用TRUNC函数，因为“TRUNC”不是公认的内置函数名。'？
[英]How to use TRUNC function in SQL server 2012, as am getting 'TRUNC' is not a recognized built-in function name.'?
问题描述
How to use TRUNC function in SQL Server 2012, as I am getting an error: 
如何在SQL Server 2012中使用TRUNC函数，因为我收到错误：
'TRUNC' is not a recognized built-in function name.'
when I execute the statement 当我执行声明
SELECT TRUNC(30.95, 1)
in SQL Server 2012 在SQL Server 2012中
http://msdn.microsoft.com/en-us/library/ee634907.aspx http://msdn.microsoft.com/en-us/library/ee634907.aspx
2 个解决方案
解决方案1
7 已采纳 2013-06-24 19:21:54
It is a DAX function, not a built in SQL function. 它是DAX函数，而不是内置的SQL函数。 It looks like those would be for use in Excel. 看起来这些将用于Excel。
http://technet.microsoft.com/en-us/library/gg399181.aspx http://technet.microsoft.com/en-us/library/gg399181.aspx
The built in function for SQL Server 2012 are here: SQL Server 2012的内置函数在这里：
http://msdn.microsoft.com/en-us/library/ms177516.aspx http://msdn.microsoft.com/en-us/library/ms177516.aspx
解决方案2
3 2013-06-24 19:06:21
ROUND ( 30.95 , 1 , 1 )
When the third parameter != 0 it truncates rather than rounds 当第三个参数！= 0时，它会截断而不是舍入
http://msdn.microsoft.com/en-us/library/ms175003(SQL.90).aspx http://msdn.microsoft.com/en-us/library/ms175003(SQL.90).aspx
Thanks to https://stackoverflow.com/a/44093/44743 感谢https://stackoverflow.com/a/44093/44743
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