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On 17/10/2005, at 11:03 PM, Njål Fisketjøn wrote:
Do you think that you need the end element if you specify 0 for the number or elements?
I think specifying zero for the number of Era or Calendar elements is only valid when the DDAT is used to describe a value for which Era and Calendar make no sense. Refer to the table in the MI Reference describing operand type and DDAT field associations. Era and Calendar are not valid for:
midrange.com
Time
Pseudo Time
Date Duration
Time Duration
Timestamp Duration
Year Label Duration
Month Label Duration
Day Label Duration
Hour Label Duration
Minute Label Duration
Second Label Duration
Microsecond Label Duration
DDATs that describe these operand types need only be 100 bytes in
length. The manual does not say the Era table and Calendar tables are
optional--just not valid and must be zeroed. While it might be possible
that a DDAT without zero-filled Era and Calendar tables may work I
suspect the intention is that they should be present.
So to answer your specific question: If 0 is specified for the number of Calendar table entries then the end table is not required (because the first entry is effectively an end entry). However a DDAT that describes a Date type or a Timestamp type must have a Calendar table. If using the SAA Calendar then two entries are required. For other Calendars (Julian, Muslim, or Hebrew) I am not certain how many entries are required and the documentation is less than helpful.
Regards, Simon Coulter. -------------------------------------------------------------------- FlyByNight Software AS/400 Technical Specialists http://www.flybynight.com.au/ Phone: +61 3 9419 0175 Mobile: +61 0411 091 400 /"\ Fax: +61 3 9419 0175 \ / X ASCII Ribbon campaign against HTML E-Mail / \ --------------------------------------------------------------------
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