CEELOCT and CEEDATE information
CEELOCT and CEEDATE information
CEELOCT and CEEDATE are APIs that exist on the system.
You do not need to create them.
In essence, what the CL that I supplied does is:
1) Use the CEELOCT API to convert the current date to lillian.
2) Then you add or subtract the number of days you need from the lillian date.
3) Then you use CEEDATE to convert the new lillian date back to the date format that you wish, in this case, I used YYYYMMDD.
I have copied the descriptions of the API's from the Iseries Information Center
(http://publib.boulder.ibm.com/pubs/html/as400/v4r5/ic2924/index.htm)
Get Current Local Time (CEELOCT) API
|--------------------------------------------------------------------------|
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| Required Parameter Group: |
| |
| |
| |
| |
| 1|
| output_Lilian |
| Out|
| put|
| INT4 |
| 2|
| output_seconds |
| Out|
| put|
| FLOAT8 |
| 3|
| output_Gregorian |
| Out|
| put|
| CHAR23 |
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| |
| |
| |
| Omissible Parameter: |
| |
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| |
| |
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| 4|
| fc |
| Output |
| FEEDB|
| ACK |
| |
| |
| |
| |
| |
| Threadsafe: Yes |
|--------------------------------------------------------------------------|
The Get Current Local Time (CEELOCT) API returns the current local time in three formats: Lilian date (the number of days since 14 October 1582), Lilian timestamp (the number of seconds since 00:00:00 14 October 1582), and Gregorian character string (in the form YYYYMMDDHHMISS999'). These values are compatible with the other ILE date and time APIs and with existing language intrinsic functions. CEELOCT performs the same service, faster, than calling CEEUTC, CEEUTCO, and CEEDATM in succession.
Required Parameter Group
output_Lilian (output)
A 32-bit binary integer representing the current local date in the
Lilian format. That is, day 1 is 15 October 1582, day 148 887 is 4
June 1990. If local time is not available from the system,
output_Lilian is set to 0 and CEELOCT ends with a nonzero feedback
code.
output_seconds (output)
A 64-bit double floating point number representing the current local
date and time as the number of seconds since 00:00:00 on 14 October
1582. For example, 00:00:01 on 15 October 1582 is second number
86 401 (24*60*60 + 01). 19:00:01.078 on 4 June 1990 is second number
12 863 905 201.078. If local time is not available from the system,
output_seconds is set to 0 and CEELOCT ends with a nonzero feedback
code.
output_Gregorian (output)
A 17-byte character string in the form YYYYMMDDHHMISS999 representing
local year, month, day, hour, minute, second, and millisecond.
Omissible Parameter
fc (output)
A 12-byte feedback code passed by reference. If specified as an
argument, feedback information (a condition token) is returned to the
calling procedure. If not specified and the requested operation was
not successfully completed, the condition is signaled to the
condition manager.
Feedback Codes and Conditions
CEE0000 The API completed successfully
Severity: 00
CEE2502 Local time not available
Severity: 30
Usage Notes
Use CEEUTC to determine Universal Time Coordinated (UTC).
Use CEEUTCO to obtain the offset from UTC to local time.
The character value returned by CEELOCT is designed to match that
produced by existing language intrinsic functions. The numeric values
returned can be used to simplify date calculations.
If the format of output_Gregorian is inappropriate, CEEDATM can be
used to convert output_seconds to any required format.
Example
Extract current local date and time in the form YYYYMMDDHHMISS999:
CALL CEELOCT (days, secs, localdatetime, fc);
Convert Lilian Date to Character Format (CEEDATE) API
|--------------------------------------------------------------------------|
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| Required Parameter Group: |
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| |
| |
| |
| 1|
| input_Lilian_date |
| Input|
| INT4 |
| 2|
| picture_string |
| Input|
| VSTRING |
| 3|
| output_char_date |
| Outpu|
| t |
| VSTRING |
| |
| |
| |
| |
| Omissible Parameter: |
| |
| |
| |
| |
| 4|
| fc |
| Output |
| FEEDBACK |
| |
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| |
| |
| |
| Threadsafe: Yes |
|--------------------------------------------------------------------------|
The Convert Lilian Date to Character Format (CEEDATE) API formats a number representing a Lilian date. The output is a character string such as 1988/07/26.
Required Parameter Group
input_Lilian_date (input)
A 32-bit binary integer representing the Lilian date, which is the
number of days since 14 October 1582. For example, 16 May 1988 is day
number 148 138. Valid range is 1 to 3 074 324 (31 December 9999).
picture_string (input by descriptor)
A character string representing the desired format of
output_char_date, for example MM/DD/YY. Each character in
picture_string represents a character in output_char_date. If
delimiters such as the slash (/) appear in the picture string, they
are copied as is to output_char_date.
Table 1 has a list of valid picture characters, and Table 2 contains
examples of valid picture strings.
If picture_string is null or blank, CEEDATE obtains picture_string
based on the current job value for COUNTRY ID. For example, if the
current job value for COUNTRY ID is US (United States), the date
format is MM/DD/YYYY. If the current job value for COUNTRY ID is FR
(France), the date format is DD.MM.YYYY.
This default mechanism makes it easy for translators to specify the
preferred date format, and also easy for application programs and
library procedures to automatically use this format.
output_char_date (output by descriptor)
A character string that is the result of converting input_Lilian_date
to the format specified by picture_string. If necessary, output will
be truncated to the length of output_char_date. Table 5 contains
sample output dates. If input_Lilian_date is not valid,
output_char_date is set to all blanks and CEEDATE ends with a nonzero
feedback-code.
Omissible Parameter
fc (output)
A 12-byte feedback code passed by reference. If specified as an
argument, feedback information (a condition token) is returned to the
calling procedure. If not specified and the requested operation was
not successfully completed, the condition is signaled to the
condition manager.
Feedback Codes and Conditions
CEE0000 The API completed successfully
Severity: 00
CEE0501 The operational descriptor data type is not valid
Severity: 30
CEE0502 Missing operational descriptor
Severity: 30
CEE2512 The value for the given Lilian date is not valid
Severity: 30
CEE2518 The picture string specification is not valid
Severity: 30
CEE2522 Lilian date outside of era
Severity: 30
CEE2526 Date truncated
Severity: 30
CEE9902 Unexpected user error occurred in &1
Severity: 30
Usage Notes
The inverse of CEEDATE is CEEDAYS. The CEEDAYS API converts character
dates to the Lilian format.
If picture_string includes a Japanese era symbol <JJJJ>, the YY
position in output_char_date is replaced by "year within Japanese
era". Table 2 has an example. Table 3 contains a list of Japanese
eras supported by CEEDATE.
If picture_string includes a Republic of China (ROC) Era symbol
<CCCC> or <CCCCCCCC>, the YY position in output_char_date is replaced
by the year within ROC era. Table 2 has an example. Table 4 contains
a list of ROC eras supported by CEEDATE.
Table 5. Sample Output of the CEEDATE API
|-----------+----------------------------+-------------------------------|
| input_Lili| picture_string | output_char_date |
| an_date | | |
|-----------+----------------------------+-------------------------------|
| 148138 | YY | 88 |
| | YYMM | 8805 |
| | YY-MM | 88-05 |
| | YYMMDD | 880516 |
| | YYYYMMDD | 19880516 |
| | YYYY-MM-DD | 1988-05-16 |
| | YYYY-ZM-ZD | 1988-5-16 |
| | <JJJJ> YY.MM.DD | Showa 63.05.16 (in a DBCS |
| | <CCCC> YY.MM.DD | string) |
| | | MinKow 77.05.16 (in a DBCS |
| | | string) |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
| 148139 | MM | 05 |
| | MMDD | 0517 |
| | MM/DD | 05/17 |
| | MMDDYY | 051788 |
| | MM/DD/YYYY | 05/17/1988 |
| | ZM/DD/YYYY | 5/17/1988 |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
| 148140 | DD | 18 |
| | DDMM | 1805 |
| | DDMMYY | 180588 |
| | DD.MM.YY | 18.05.88 |
| | DD.MM.YYYY | 18.05.1988 |
| | DD Mmm YYYY | 18 May 1988 |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
| 148141 | DDD | 140 |
| | YYDDD | 88140 |
| | YY.DDD | 88.140 |
| | YYYY.DDD | 1988.140 |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
| 148142 | YY/MM/DD HH:MI:SS.99 | 88/05/20 00:00:00.00 |
| | YYYY/ZM/ZD ZH:MI AP | 88/5/20 0:00 AM |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
| 148143 | WWW., MMM DD, YYYY | SAT., MAY 21, 1988 |
| | Www., Mmm DD, YYYY | Sat., May 21, 1988 |
| | Wwwwwwwwww, Mmmmmmmmmm DD, | Saturday , May 21, |
| | YYYY | 1988 |
| | Wwwwwwwwwz, Mmmmmmmmmz DD, | Saturday, May 21, 1988 |
| | YYYY | |
| | | |
| | | |
|-----------+----------------------------+-------------------------------|
Example
Convert a date from the Lilian format to IBM USA standard format
MM/DD/YYYY:
CALL CEEDATE (lildate, 'MM/DD/YYYY', usadate, fc);
