Times Like These with SQL Server

I was doing some conversion of Oracle code (PL/SQL) to SQL Server code (T-SQL) – which had some quirks.

I just thought that I’d share a quick tip that has helped me out quite a bit.

Much of the Oracle code had time manipulation functions – but they were done in a way that I didn’t find intuitive. There was a lot of what appeared to be casting (or similar) between text stings containing dates and time.

One of the nice things about T-SQL – in my opinion – is that there are a lot of different data types, some of which deal with times.

On top of that there are functions that allow a specific part of a date/time to be captured – for example we might want the month number, of the day number of the month or the hour, or any part of a date / time really.

So, here’s a list of some of the ways to get that information directly from SQL Server.

SELECT DATEPART(DAY         , SYSDATETIME());
SELECT DATEPART(YEAR        , SYSDATETIME());
SELECT DATEPART(QUARTER     , SYSDATETIME());
SELECT DATEPART(MONTH       , SYSDATETIME());
SELECT DATEPART(DAYOFYEAR   , SYSDATETIME());
SELECT DATEPART(DAY         , SYSDATETIME());
SELECT DATEPART(WEEK        , SYSDATETIME());
SELECT DATEPART(WEEKDAY     , SYSDATETIME());
SELECT DATEPART(HOUR        , SYSDATETIME());
SELECT DATEPART(MINUTE      , SYSDATETIME());
SELECT DATEPART(SECOND      , SYSDATETIME());
SELECT DATEPART(MILLISECOND , SYSDATETIME());
SELECT DATEPART(MICROSECOND , SYSDATETIME());
SELECT DATEPART(NANOSECOND  , SYSDATETIME());
SELECT DATEPART(TZOFFSET    , SYSDATETIME());
SELECT DATEPART(ISO_WEEK    , SYSDATETIME());

You can read more at the following link

Have a great day

Cheers

Martin.

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