Use convert function with variables : CONVERT « Data Convert Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Data Convert Functions » CONVERT

13. 3. 26. Use convert function with variables


3> DECLARE @thisdate datetime, @nextmonth datetime

4> SET @thisdate = GETDATE()

5> SET @nextmonth = DATEADD(m, 1, GETDATE())

6> SELECT CONVERT(varchar, @thisdate, 101) 'Today',

7>     CONVERT(varchar, @nextmonth, 101) 'One month from today',

8>     DATEDIFF(d, @thisdate, @nextmonth) 'Days between'

9> GO

Today                          One month from today           Days between

------------------------------ ------------------------------ ------------

08/17/2008                     09/17/2008                               31



(1 rows affected)

1>

13. 3. CONVERT
	13. 3. 1.	CONVERT function syntax
	13. 3. 2.	Values for the style argument of the CONVERT function when you convert a datetime expression to a character expression.
	13. 3. 3.	select CONVERT (INTEGER , '123')
	13. 3. 4.	The syntax of the CONVERT function CONVERT(data_type, expression [, style])
	13. 3. 5.	CONVERT(varchar,BillingDate,100) 'Mmm dd yyyy hh:mmdp'
	13. 3. 6.	CONVERT(varchar,BillingDate,101) 'mm/dd/yyyy'
	13. 3. 7.	CONVERT(varchar,BillingDate,103) 'dd/mm/yyyy'
	13. 3. 8.	CONVERT() function requires two arguments: the first for the target data type and the second for the source value.
	13. 3. 9.	SELECT 'Default Date: ' + CONVERT(VarChar(50), GETDATE(), 100)
	13. 3. 10.	SELECT 'US Date: ' + CONVERT(VarChar(50), GETDATE(), 101)
	13. 3. 11.	SELECT 'ANSI Date: ' + CONVERT(VarChar(50), GETDATE(), 102)
	13. 3. 12.	SELECT 'UK/French Date: ' + CONVERT(VarChar(50), GETDATE(), 103)
	13. 3. 13.	SELECT 'German Date: ' + CONVERT(VarChar(50), GETDATE(), 104)
	13. 3. 14.	SELECT CONVERT(VarChar(50), @Num, 0)
	13. 3. 15.	CONVERT(datetime, '20000704')
	13. 3. 16.	SELECT CONVERT(datetime, '10.12.99',1)
	13. 3. 17.	SELECT CONVERT(datetime, '10.12.99',4)
	13. 3. 18.	CONVERT(char(10), GETDATE(), 112)
	13. 3. 19.	CONVERT(varchar(10), advance, 2)
	13. 3. 20.	CONVERT(varchar(20), GETDATE())
	13. 3. 21.	The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.
	13. 3. 22.	CONVERT(char(8), BillingDate, 1) and CONVERT(varchar(9), PaymentTotal, 1)
	13. 3. 23.	Conversion failed when converting the varchar value 'abc' to data type int.
	13. 3. 24.	CONVERT(varchar(12), OrderDate, 5)
	13. 3. 25.	Compare date type value after converting
	13. 3. 26.	Use convert function with variables

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