SQL Server/T-SQL/Date Timezone/Year
Содержание
select YEAR("2002-09-30")
<source lang="sql">
3> 4> select YEAR("2002-09-30") 5> GO
2002
(1 rows affected)
</source>
The DAY(), MONTH(), and YEAR() Functions
<source lang="sql">
1> 2> -- The DAY(), MONTH(), and YEAR() Functions 3> 4> -- These three functions return an integer date part of a DateTime or SmallDateTime -- 5> -- type value. 6> 7> 8> SELECT "Year: " + CONVERT(VarChar(4), YEAR(GETDATE())) 9> + ", Month: " + CONVERT(VarChar(2), MONTH(GETDATE())) 10> + ", Day: " + CONVERT(VarChar(2), DAY(GETDATE())) 11> 12> GO
Year: 2006, Month: 10, Day: 12 (1 rows affected) 1>
</source>
Using Functions in Queries
<source lang="sql">
1> create table employee( 2> ID int, 3> name nvarchar (10), 4> salary int, 5> start_date datetime, 6> city nvarchar (10), 7> region char (1)) 8> GO 1> 2> insert into employee (ID, name, salary, start_date, city, region) 3> values (1, "Jason", 40420, "02/01/94", "New York", "W") 4> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (2, "Robert",14420, "01/02/95", "Vancouver","N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (3, "Celia", 24020, "12/03/96", "Toronto", "W") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (4, "Linda", 40620, "11/04/97", "New York", "N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (5, "David", 80026, "10/05/98", "Vancouver","W") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (6, "James", 70060, "09/06/99", "Toronto", "N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (7, "Alison",90620, "08/07/00", "New York", "W") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (8, "Chris", 26020, "07/08/01", "Vancouver","N") 3> GO (1 rows affected) 1> insert into employee (ID, name, salary, start_date, city, region) 2> values (9, "Mary", 60020, "06/09/02", "Toronto", "W") 3> GO (1 rows affected) 1> 2> select * from employee 3> GO ID name salary start_date city region
---------- ----------- ----------------------- ---------- ------
1 Jason 40420 1994-02-01 00:00:00.000 New York W 2 Robert 14420 1995-01-02 00:00:00.000 Vancouver N 3 Celia 24020 1996-12-03 00:00:00.000 Toronto W 4 Linda 40620 1997-11-04 00:00:00.000 New York N 5 David 80026 1998-10-05 00:00:00.000 Vancouver W 6 James 70060 1999-09-06 00:00:00.000 Toronto N 7 Alison 90620 2000-08-07 00:00:00.000 New York W 8 Chris 26020 2001-07-08 00:00:00.000 Vancouver N 9 Mary 60020 2002-06-09 00:00:00.000 Toronto W
(9 rows affected) 1> 2> 3> --Using Functions in Queries 4> 5> SELECT Name, YEAR(Start_Date) AS Start_Year 6> FROM Employee 7> GO Name Start_Year
-----------
Jason 1994 Robert 1995 Celia 1996 Linda 1997 David 1998 James 1999 Alison 2000 Chris 2001 Mary 2002 (9 rows affected) 1> 2> 3> 4> 5> drop table employee 6> GO 1>
</source>
YEAR: return the year portion of a date
<source lang="sql">
1> --------------------------------------------------- 2> -- YEAR: return the year portion of a date. 3> 4> SELECT YEAR("24 March 1964") 5> GO
1964
(1 rows affected) 1>
</source>