Sybase 12.4.2 - Manual (Page 234)

Converting data on insertion
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The length of the format string is the width of the input column. Table 5-7
describes the date formatting options. The following table describes the time
formatting options.
Table 5-9: Formatting times
The following table shows examples of how time input data may look and how
to specify the format for the
DATETIME option. Following this table are the
general rules for specifying times.
Table 5-10: DATETIME format options
• Specification letters for time components must be in enclosed in
parentheses and single or double quotation marks.
Option Meaning
hh
HH
Represents hour. Hour is based on 24-hour clock. Always use
leading zeros for hour where appropriate, for example ’01’ for 1
am. ’00’ is also valid value for hour of 12 am.
nn Represents minute. Always use leading zeros for minute where
appropriate, for example ’08’ for 8 minutes.
ss[.ssssss] Represents seconds and fraction of a second.
aa Represents the a.m. or p.m designation.
pp Represents the p.m designation only if needed. (This is
incompatible with Adaptive Server IQ releases prior to 12.0;
previously, pp was synonymous with aa.)
hh Adaptive Server IQ assumes zero for minutes and seconds. For
example, if the
DATETIME value you enter is ’03’, Adaptive
Server IQ converts it to ’03:00:00.0000’.
hh:nn or hh:mm Adaptive Server IQ assumes zero for seconds. For example, if the
time value you enter is ’03:25’, Adaptive Server IQ converts it to
’03:25:00.0000’.
Input Data Format Specification
12/31/98 14:01:50 DATETIME (’MM/DD/YY hh:nn:ss’)
123198140150 DATETIME (’MMDDYYhhnnss’)
14:01:50 12-31-98 DATETIME (’hh:mm:ss MM-DD-YY’)
12/31/98 14:01:12.456 DATETIME (’MM/DD/YY hh:nn:sssssss’)
12/31/98 14:01:.123456 DATETIME (’MM/DD/YY hh:mm:sssssss’)
12/31/98 02:01:50AM DATETIME (’MM/DD/YY hh:mm:ssaa’)
12/31/98 02:01:50pm DATETIME (’MM/DD/YY hh:mm:sspp’)