CONVERT data of DATE type in sqlserver to CONVERT

It mainly describes the actual operation process of SQLServer to use convert to obtain datetime date data. In actual operation, converdatabase uses convert to obtain datetime date data. The following examples include conversions of various date formats. Statement and query result: SelectCONVERT (varchar (100), GETDATE (), 0): 0516200610: 57AM

It mainly describes the actual operation process of SQL Server to use convert to obtain datetime date data. In actual operation, SQL Server database uses convert to obtain datetime date data, the following examples include conversion of various date formats. Statement and query result: SelectCONVERT (varchar (100), GETDATE (), 0): 0516200610: 57AM

It mainly describes the actual operation process of SQL Server to use convert to obtain datetime date data. In actual operation, SQL Server database uses convert to obtain datetime date data, the following examples include conversion of various date formats.

Statement and query result:

1. Select CONVERT (varchar (100), GETDATE (), 0): 05 16 2006 AM
2. Select CONVERT (varchar (100), GETDATE (), 1): 05/16/0

SQL Server uses convert to obtain datetime date data. The following examples include conversions of various date formats.

Statement and query result:

1. Select CONVERT (varchar (100), GETDATE (), 0): 05 16 2006 AM
2. Select CONVERT (varchar (100), GETDATE (), 1): 05/16/06
3. Select CONVERT (varchar (100), GETDATE (), 2): 06.05.16
4. Select CONVERT (varchar (100), GETDATE (), 3): 16/05/06
5. Select CONVERT (varchar (100), GETDATE (), 4): 16.05.06
6. Select CONVERT (varchar (100), GETDATE (), 5): 16-05-06
7. Select CONVERT (varchar (100), GETDATE (), 6): 16 05 06
8. Select CONVERT (varchar (100), GETDATE (), 7): 05 16, 06
9. Select CONVERT (varchar (100), GETDATE (), 8): 10:57:46
10. Select CONVERT (varchar (100), GETDATE (), 9): 05 16 2006 10: 57: 46: 827AM
11. Select CONVERT (varchar (100), GETDATE (), 10): 05-16-06
12. Select CONVERT (varchar (100), GETDATE (), 11): 06/05/16
13. Select CONVERT (varchar (100), GETDATE (), 12): 060516
14. Select CONVERT (varchar (100), GETDATE (), 13): 16 05 2006 10: 57: 46: 937
15. Select CONVERT (varchar (100), GETDATE (), 14): 10: 57: 46: 967
16. Select CONVERT (varchar (100), GETDATE (), 20): 10:57:47
17. Select CONVERT (varchar (100), GETDATE (), 21): 10:57:47. 157
18. Select CONVERT (varchar (100), GETDATE (), 22): 05/16/06 10:57:47 AM
19. Select CONVERT (varchar (100), GETDATE (), 23 ):
20. Select CONVERT (varchar (100), GETDATE (), 24): 10:57:47
21. Select CONVERT (varchar (100), GETDATE (), 25): 10:57:47. 250
22. Select CONVERT (varchar (100), GETDATE (), 100): 05 16 2006 AM
23. Select CONVERT (varchar (100), GETDATE (), 101): 05/16/2006
24. Select CONVERT (varchar (100), GETDATE (), 102): 2006.05.16
25. Select CONVERT (varchar (100), GETDATE (), 103): 16/05/2006
26. Select CONVERT (varchar (100), GETDATE (), 104): 16.05.2006
27. Select CONVERT (varchar (100), GETDATE (), 105): 16-05-2006
28. Select CONVERT (varchar (100), GETDATE (), 106): 16 05 2006
29. Select CONVERT (varchar (100), GETDATE (), 107): 05 16,200 6
30. Select CONVERT (varchar (100), GETDATE (), 108): 10:57:49
31. Select CONVERT (varchar (100), GETDATE (), 109): 05 16 2006 10: 57: 49: 437AM
32. Select CONVERT (varchar (100), GETDATE (), 110): 05-16-2006
33. Select CONVERT (varchar (100), GETDATE (), 111): 2006/05/16
34. Select CONVERT (varchar (100), GETDATE (), 112): 20060516
35. Select CONVERT (varchar (100), GETDATE (), 113): 16 05 2006 10: 57: 49: 513
36. Select CONVERT (varchar (100), GETDATE (), 114): 10: 57: 49: 547
37. Select CONVERT (varchar (100), GETDATE (), 120): 10:57:49
38. Select CONVERT (varchar (100), GETDATE (), 121): 10:57:49. 700
39. Select CONVERT (varchar (100), GETDATE (), 126): 2006-05-16T10: 57: 49.827
40. Select CONVERT (varchar (100), GETDATE (), 130): 18 ???? ?????? 1427 10: 57: 49: 907AM
41. Select CONVERT (varchar (100), GETDATE (), 131): 18/04/1427 10: 57: 49: 920AM

Note:

SQL Server uses convert:

1. CONVERT (data_type [(length)], expression [, style])

Parameters

Expression

Is it any valid Microsoft? SQL Server? Expression ..

Data_type

The data types provided by the target system, including bigint and SQL _variant. User-Defined data types cannot be used.

Length

Optional parameters of the nchar, nvarchar, char, varchar, binary, or varbinary data type.

Style

Date Format style, which converts datetime or smalldatetime data to character data (nchar, nvarchar, char, varchar, nchar, or nvarchar data type); or string format style, to convert float, real, money, or smallmoney data to character data (nchar, nvarchar, char, varchar, nchar, or nvarchar data type ).

SQL Server supports the data format in the Arabic style using the Kuwait algorithm.

In the table, the two columns on the left represent converting datetime or smalldatetime to the style value of the character data. Add 100 to the style value to obtain the four-digit year (yyyy) of the century ).

Without Century digital (yy) with Century digital (yyyy)

Standard

Input/Output **

-0 or 100 (*) Default Value: mon dd yyyy hh: miAM (or PM)

1 101 us mm/dd/yyyy

2 102 ANSI yy. mm. dd

3 103 UK/French dd/mm/yy

4 104 German dd. mm. yy

5 105 Italian dd-mm-yy

6 106-dd mon yy

7 107-mon dd, yy

8 108-hh: mm: ss

-9 or 109 (*) Default Value + millisecond mon dd yyyy hh: mi: ss: mmmAM (or PM)

10 110 US mm-dd-yy

11 111 yy/mm/dd in Japan

12 112 ISO yymmdd

-13 or 113 (*) European default value + millisecond dd mon yyyy hh: mm: ss: mmm (24 h)

14 114-hh: mi: ss: mmm (24 h)

-20 or 120 (*) ODBC specification yyyy-mm-dd hh: mm: ss [. fff]

-21 or 121 (*) ODBC specifications (in milliseconds) yyyy-mm-dd hh: mm: ss [. fff]

-126 (***) ISO8601 yyyy-mm-dd Thh: mm: ss. mmm (without spaces)

-130 * Hijri ***** dd mon yyyy hh: mi: ss: mmmAM

-131 * Hijri ***** dd/mm/yy hh: mi: ss: mmmAM

* The default value (style 0, 100, 9, 109, 13, 113, 20, 120, 21, or 121) always returns century digits (yyyy ).

** Input when converted to datetime; output when converted to character data.

* ** It is specially used for XML. For the conversion from datetime or smalldatetime to character data, the output format is shown in the table. For data conversion from float, money, smallmoney to character, the output is equivalent to style 2. For data conversion from real to character, the output is equivalent to style 1.

* *** Hijri is a calendar system with several forms of change. Microsoft? SQL Server? 2000 use the Kuwait algorithm.

Important by default, SQL Server interprets two-digit years based on the end year 2049. That is, the year 49 with two digits is interpreted as 2049, and the year 50 with two digits is interpreted as 1950. Many client applications (such as client applications based on OLE automation objects) Use 2030 as the end year.

SQL Server provides a configuration option ("") to change the end year used by SQL Server and process the date in a consistent manner. However, the safest way is to specify a four-digit year.

When converting from smalldatetime to character data, the style that contains seconds or milliseconds will display zero at these locations. When converting from the datetime or smalldatetime value, you can use the appropriate char or varchar data type length to cut off the date part that is not required.

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