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*   CZ801.T02 DB-EZTest Tech Note                        March 1998 *

*                                                                   *

*   KEYWORDS: DB-EZTest YYMM=ONLY                                   *

*                                                                   *

*   YYMM=ONLY may be specified on the #SDETAB entry for a date to   *

*             instruct the EZTest software to age the YYMM portion  *

*             of a date leaving the days alone.                     *

*                                                                   *

*   This is fine if the day is always 01 or less than 29, however   *

*             inconsistencies will arise with days > 28 as the      *

*             software will not allow an invalid date. If the       *

*             resultant days is higher than the max for the month   *

*             then EZTest will set it to the last day of the month. *

*             If the record is then modified the record is stored   *

*             back on the database with the modified days.          *

*                                                                   *

*   Eg INVOICE-DATE=19980131 and we age by 2 Years 1 month then     *

*      INVOICE-DATE=20000231 is invalid so is adjusted to           *

*      INVOICE-DATE=20000229                                        *

*                                                                   *

*   If the record is modified we decrement by 2 Years 1 Month and   *

*      INVOICE-DATE=19980129 is the value stored back on the        *

*      database.                                                    *

*                                                                   *

*   This is a feature of YYMM=ONLY that cannot be prevented as the  *

*      software cannot keep a history of every data occurrence      *

*      aged in case it is modified at some later stage. YYMM=ONLY   *

*      should therefore be used with caution and only when it is    *

*      required and the anomoly descibed above will not occur or    *

*      will not matter to the application.                          *

*                                                                   *

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