Lập Trình .NET

declare @dateTime datetime2 = SYSDATETIME()
declare @dateTimeOffset datetimeoffset = SYSDATETIMEOFFSET()

select @dateTime as [CurrentDateTime],
@dateTimeOffset as [CurrentDateTimeOffset],
CAST(@dateTime as datetimeoffset) as [DateTimeOffset1],
TODATETIMEOFFSET(@dateTime, '+07:00') as [DateTimeOffset2],
TODATETIMEOFFSET(@dateTime, RIGHT(SYSDATETIMEOFFSET(), 6)) as [DateTimeOffset3]

Using the StringBuilder Class in .NET | Microsoft Docs

Manipulating C# Strings with StringBuilder | CodeGuru.com

https://referencesource.microsoft.com/#mscorlib/system/text/stringbuilder.cs

https://source.dot.net/#System.Private.CoreLib/StringBuilder.cs

https://referencesource.microsoft.com/#mscorlib/system/collections/generic/list.cs

https://source.dot.net/#System.Private.CoreLib/List.cs

C# Collection : Behind the Scene - TAAGUNG