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SQL QuizSQL Server DATEPART() Function
SQL Server Date Functions
Definition and Usage
The DATEPART() function is used to return a single part of a date/time, such as year, month, day, hour, minute, etc.
Syntax
DATEPART(datepart,date)
Where date is a valid date expression and datepart can be one of the following:
| datepart | Abbreviation |
|---|---|
| year | yy, yyyy |
| quarter | qq, q |
| month | mm, m |
| dayofyear | dy, y |
| day | dd, d |
| week | wk, ww |
| weekday | dw, w |
| hour | hh |
| minute | mi, n |
| second | ss, s |
| millisecond | ms |
| microsecond | mcs |
| nanosecond | ns |
Example
Assume we have the following "Orders" table:
| OrderId | ProductName | OrderDate |
|---|---|---|
| 1 | Jarlsberg Cheese | 2008-11-11 13:23:44.657 |
The following SELECT statement:
SELECT DATEPART(yyyy,OrderDate) AS OrderYear,
DATEPART(mm,OrderDate) AS OrderMonth,
DATEPART(dd,OrderDate) AS OrderDay,
FROM Orders
WHERE OrderId=1
DATEPART(mm,OrderDate) AS OrderMonth,
DATEPART(dd,OrderDate) AS OrderDay,
FROM Orders
WHERE OrderId=1
will result in this:
| OrderYear | OrderMonth | OrderDay |
|---|---|---|
| 2008 | 11 | 11 |
SQL Server Date Functions
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