How to use Convert:

xiaoxiao2021-03-06  44

format:

Convert (Data_Type, Expression [, Style])

Description:

This style is typically in time type (DateTime, SmallDateTime) with string type (nchar, nvarchar, char, varchar)

It is used when converting each other.

example:

Select Convert (VARCHAR (30), Getdate (), 101) Now

Resulting

NOW

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

09/15/2001

/

STYLE number The meaning of the conversion time is as follows

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

Style (2nd represents year) | style (4 digits year) | Input Output Format

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

- | 0 OR 100 | MON DD YYYY HH: MIAM (or PM)

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

1 | 101 | MM / DD / YY

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

2 | 102 | YY-MM-DD

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

3 | 103 | DD / MM / YY

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

4 | 104 | DD-MM-YY

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

5 | 105 | DD-MM-YY

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

6 | 106 | DD MON YY

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

7 | 107 | MON DD, YY

-------------------------------------------------- ------------------------------------------------ 8 | 108 | Hh: mm: ss

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

- | 9 or 109 | MON DD YYYY HH: MI: SS: Mmmmam (or PM)

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

10 | 110 | MM-DD-YY

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

11 | 111 | YY / MM / DD

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

12 | 112 | YYMMDD

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

- | 13 or 113 | DD MON YYYY HH: MI: SS: MMM (24 hours)

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

14 | 114 | HH: MI: SS: MMM (24 hours)

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

- | 20 OR 120 | YYYY-MM-DD HH: MI: SS (24-hour)

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

- | 21 or 121 | YYYY-MM-DD HH: MI: SS: MMM (24-hour system)

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

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