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sql中convert转化函数的用法(Usage of convert transformation function in SQL)
sql中convert转化函数的用法(Usage of convert transformation function in SQL)
Usage of CONVERT transformation function in SQL
Add time: 2007-4-22
Format:
CONVERT (data_type, expression[, style])
Explain:
This style is typically in the time type (datetime, smalldatetime) and string type (nchar, nvarchar, char, varchar)
They are used when they are being exchanged
Example:
SELECT, CONVERT (varchar (30), getdate (), 101) now
As a result:
Now
---------------------------------------
|09/15/2001
===================================================================
The meaning of style numbers in converting time is as follows:
------------------------------------------------------------------------------------------------------------
Style (2 bits Style (4 year) | that year) | input and output format
------------------------------------------------------------------------------------------------------------
0 mon DD yyyy 100 | | hh:miAM (or PM)
------------------------------------------------------------------------------------------------------------
1 | 101 U.S. | mm/dd/yy
------------------------------------------------------------------------------------------------------------
2 | 102 ANSI | YY-MM-DD
------------------------------------------------------------------------------------------------------------
3 | 103 French | dd/mm/yy
------------------------------------------------------------------------------------------------------------
4 | 104 German | dd.mm.yy
------------------------------------------------------------------------------------------------------------
5 | 105 Italy | DD-MM-YY
------------------------------------------------------------------------------------------------------------
6 | 106 | DD mon YY
------------------------------------------------------------------------------------------------------------
7 | 107 | mon DD, YY
------------------------------------------------------------------------------------------------------------
8 | 108 | HH:毫米:SS
----
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