MSSQL NVARCHAR to INT conversions, Sql Server

MSSQL NVARCHAR to INT conversions

--Sql Server 2014 Express Edition
--Batches are separated by 'go'

select @@version as 'sql server version';

-- variants with nvarchar to int conversion

-- select origin nvarchar column type
select convert(nvarchar(50),'2.54');

-- select directly converted float from origin nvarchar column type
--          with dot as decimal separator
select convert(float, convert(nvarchar(50),'2.54'));

--cast float to int
select cast (convert(float, convert(nvarchar(50),'2.54')) as int) ;
--float to int by floor, cast to int
select cast( floor (convert(float, convert(nvarchar(50),'2.54')) ) as int) ;
--float to int by ceiling, cast to int
select ceiling (convert(float, convert(nvarchar(50),'2.54')) ) ;

--float to int rounded to x places
select round (convert(float, convert(nvarchar(50),'2.54')),1 )  ;
--float to int rounded to 0 places, cast to int
select cast(round (convert(float, convert(nvarchar(50),'2.54')),0 ) as int) ;

--possible use with nvarch column as data origin 
--select cast( floor (convert(float, MyNVARCHARColumn) ) as int) ;

-- try variants with negative number!


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