SQL CONVERT Conversion Function usage Summary

Source: Internet
Author: User

Format:
CONVERT (data_type, expression [, style])

Note:
This style is generally in the time type (datetime, smalldatetime) and string type (nchar, nvarchar, char, varchar)
It is used only when they are converted to each other.

Example:
Select convert (varchar (30), getdate (), 101) now
Result:
Now
---------------------------------------
| 09/15/2001

The conversion time of a Style number is as follows:

Copy codeThe Code is as follows:
Style (2 bits represent the year) | Style (4 bits represent the year) | input/output format

0 | 100 | mon dd yyyy hh: miAM (or PM)
1 | 101 us | mm/dd/yy
2 | 102 ANSI | yy-mm-dd
3 | 103 English | dd/mm/yy
4 | 104 Germany | dd. mm. yy
5 | 105 Italy | dd-mm-yy
6 | 106 | dd mon yy
7 | 107 | mon dd, yy
Eight | 108 | hh: mm: ss
9 | 109 | mon dd yyyy hh: mi: ss: mmmmAM (or PM)
10 | 110 US | mm-dd-yy
11 | 111 Japan | yy/mm/dd
12 | 112 ISO | yymmdd
13 | 113 European default value | dd mon yyyy hh: mi: ss: mmm (in 24-hour format)
14 | 114 | hh: mi: ss: mmm (in 24-hour format)

20 | 120 ODBC specifications | yyyy-mm-dd hh: mi: ss (24-hour)

21 | 121 | yyyy-mm-dd hh: mi: ss: mmm (in 24-hour format)


Statement and query result:
Copy codeThe Code is as follows:
Select convert (varchar (100), GETDATE (), 0): 05 16 2006 AM
Select convert (varchar (100), GETDATE (), 1): 05/16/06
Select convert (varchar (100), GETDATE (), 2): 06.05.16
Select convert (varchar (100), GETDATE (), 3): 16/05/06
Select convert (varchar (100), GETDATE (), 4): 16.05.06
Select convert (varchar (100), GETDATE (), 5): 16-05-06
Select convert (varchar (100), GETDATE (), 6): 16 05 06
Select convert (varchar (100), GETDATE (), 7): 05 16, 06
Select convert (varchar (100), GETDATE (), 8): 10:57:46
Select convert (varchar (100), GETDATE (), 9): 05 16 2006 10: 57: 46: 827AM
Select convert (varchar (100), GETDATE (), 10): 05-16-06
Select convert (varchar (100), GETDATE (), 11): 06/05/16
Select convert (varchar (100), GETDATE (), 12): 060516
Select convert (varchar (100), GETDATE (), 13): 16 05 2006 10: 57: 46: 937
Select convert (varchar (100), GETDATE (), 14): 10: 57: 46: 967
Select convert (varchar (100), GETDATE (), 20): 10:57:47
Select convert (varchar (100), GETDATE (), 21): 10:57:47. 157
Select convert (varchar (100), GETDATE (), 22): 05/16/06 10:57:47 AM
Select convert (varchar (100), GETDATE (), 23 ):
Select convert (varchar (100), GETDATE (), 24): 10:57:47
Select convert (varchar (100), GETDATE (), 25): 10:57:47. 250
Select convert (varchar (100), GETDATE (), 100): 05 16 2006 AM
Select convert (varchar (100), GETDATE (), 101): 05/16/2006
Select convert (varchar (100), GETDATE (), 102): 2006.05.16
Select convert (varchar (100), GETDATE (), 103): 16/05/2006
Select convert (varchar (100), GETDATE (), 104): 16.05.2006
Select convert (varchar (100), GETDATE (), 105): 16-05-2006
Select convert (varchar (100), GETDATE (), 106): 16 05 2006
Select convert (varchar (100), GETDATE (), 107): 05 16,200 6
Select convert (varchar (100), GETDATE (), 108): 10:57:49
Select convert (varchar (100), GETDATE (), 109): 05 16 2006 10: 57: 49: 437AM
Select convert (varchar (100), GETDATE (), 110): 05-16-2006
Select convert (varchar (100), GETDATE (), 111): 2006/05/16
Select convert (varchar (100), GETDATE (), 112): 20060516
Select convert (varchar (100), GETDATE (), 113): 16 05 2006 10: 57: 49: 513
Select convert (varchar (100), GETDATE (), 114): 10: 57: 49: 547
Select convert (varchar (100), GETDATE (), 120): 10:57:49
Select convert (varchar (100), GETDATE (), 121): 2006

CONVERT () functions commonly used in SQL

For the next use, the next check, and the next forget, just remember.
Copy codeThe Code is as follows:
Select convert (varchar (100), GETDATE (), 0): 05 16 2006 AM
Select convert (varchar (100), GETDATE (), 1): 05/16/06
Select convert (varchar (100), GETDATE (), 2): 06.05.16
Select convert (varchar (100), GETDATE (), 3): 16/05/06
Select convert (varchar (100), GETDATE (), 4): 16.05.06
Select convert (varchar (100), GETDATE (), 5): 16-05-06
Select convert (varchar (100), GETDATE (), 6): 16 05 06
Select convert (varchar (100), GETDATE (), 7): 05 16, 06
Select convert (varchar (100), GETDATE (), 8): 10:57:46
Select convert (varchar (100), GETDATE (), 9): 05 16 2006 10: 57: 46: 827AM
Select convert (varchar (100), GETDATE (), 10): 05-16-06
Select convert (varchar (100), GETDATE (), 11): 06/05/16
Select convert (varchar (100), GETDATE (), 12): 060516
Select convert (varchar (100), GETDATE (), 13): 16 05 2006 10: 57: 46: 937
Select convert (varchar (100), GETDATE (), 14): 10: 57: 46: 967
Select convert (varchar (100), GETDATE (), 20): 10:57:47
Select convert (varchar (100), GETDATE (), 21): 10:57:47. 157
Select convert (varchar (100), GETDATE (), 22): 05/16/06 10:57:47 AM
Select convert (varchar (100), GETDATE (), 23 ):
Select convert (varchar (100), GETDATE (), 24): 10:57:47
Select convert (varchar (100), GETDATE (), 25): 10:57:47. 250
Select convert (varchar (100), GETDATE (), 100): 05 16 2006 AM
Select convert (varchar (100), GETDATE (), 101): 05/16/2006
Select convert (varchar (100), GETDATE (), 102): 2006.05.16
Select convert (varchar (100), GETDATE (), 103): 16/05/2006
Select convert (varchar (100), GETDATE (), 104): 16.05.2006
Select convert (varchar (100), GETDATE (), 105): 16-05-2006
Select convert (varchar (100), GETDATE (), 106): 16 05 2006
Select convert (varchar (100), GETDATE (), 107): 05 16,200 6
Select convert (varchar (100), GETDATE (), 108): 10:57:49
Select convert (varchar (100), GETDATE (), 109): 05 16 2006 10: 57: 49: 437AM
Select convert (varchar (100), GETDATE (), 110): 05-16-2006
Select convert (varchar (100), GETDATE (), 111): 2006/05/16
Select convert (varchar (100), GETDATE (), 112): 20060516
Select convert (varchar (100), GETDATE (), 113): 16 05 2006 10: 57: 49: 513
Select convert (varchar (100), GETDATE (), 114): 10: 57: 49: 547
Select convert (varchar (100), GETDATE (), 120): 10:57:49
Select convert (varchar (100), GETDATE (), 121): 10:57:49. 700
Select convert (varchar (100), GETDATE (), 126): 2006-05-16T10: 57: 49.827
Select convert (varchar (100), GETDATE (), 130): 18 ???? ?????? 1427 10: 57: 49: 907AM
Select convert (varchar (100), GETDATE (), 131): 18/04/1427 10: 57: 49: 920AM

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