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DATATRIEVE DTRVAXECO02072 V7.2 for OpenVMS VAX Systems ECO Summary

TITLE: DATATRIEVE DTRVAXECO02072 V7.2 for OpenVMS VAX Systems ECO Summary NOTE: An OpenVMS saveset or PCSI installation file is stored on the Internet in a self-expanding compressed file. The name of the compressed file will be kit_name-dcx_vaxexe for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha. Once the file is copied to your system, it can be expanded by typing RUN compressed_file. The resultant file will be the OpenVMS saveset or PCSI installation file which can be used to install the ECO. Modification Date: 09-AUG-1999 Modification Type: Updated applicable OpenVMS VAX versions. PRODUCT: DEC Datatrieve V7.2 for OpenVMS VAX Systems OP/SYS: OpenVMS VAX COMPONENT: Report Writer DTRLIB.OLB DTRSHR.EXE SOURCE: Compaq Computer Corporation ECO INFORMATION: ECO Kit Name: DTRVAXECO02072 ECO Kits Superseded by This ECO Kit: DTRVAXECO01072 ECO Kit Approximate Size: 4284 Blocks Kit Applies To: DEC Datatrieve V7.2 for OpenVMS VAX Systems OpenVMS VAX V6.2 and higher Rolling Re-boot Supported: Not Known Kit Dependencies: The following remedial kit(s) must be installed BEFORE installation of this kit: None In order to receive all the corrections listed in this kit, the following remedial kits should also be installed: None ECO KIT SUMMARY: An ECO kit exists for DEC Datatrieve V7.2 for OpenVMS VAX Systems on OpenVMS VAX V6.2 and higher. This kit addresses the following problems: Problems Addressed in DTRVAXECO02072 o The logical DTR$DATE_INPUT did not handle four digit years correctly. For example, if the logical was set to "MDY" and a date string was input in the following format - 12311999 - a conversion error was reported. This problem has now been fixed, and the correct date (i.e. 31-DEC-1999 in the example) will be returned. o DTR supports several formats of date field on its forms. These include 2-digit and 4-digit year date formats. DTR validates date fields and translates all date fields formats into the standard OpenVMS binary date format which is then passed to the application. In order to successfully translate 2-digit year date fields into their corresponding binary format, DTR has to supply the missing 2 digits of the year (i.e. the century digits). DTR has always used the century digits as specified by the system clock. This is entirely consistent with the way that incompletely specified dates are interpreted in OpenVMS. At the turn of the century, the behavior of DTR as described above will mean that 2-digit year dates from the screen will be interpreted differently. All 2-digit year dates will be processed as being in the 21st century, exactly 100 years later than previously. DTR now uses a so-called sliding window capability for the translation of DTR 2-digit year dates. This enhancement will allow for the modification of the behavior of DTR so that the century digits applied to a 2-digit year date may be based on a customer specified value. On each occasion DTR is required to expand a 2-digit year date it will attempt to translate a logical name called DTR$BASE_YEAR. Valid values for this logical name are 4-digit numbers in the range 1859 - 9900. DTR will search the PROCESS table followed by the GROUP table and finally the SYSTEM table and will use the first valid value found. If no valid translation of the DTR$BASE_YEAR logical is found then the behavior of DTR in processing 2-digit year dates will remain exactly as in the current version of DTR. This 4-digit number resulting from a valid translation of the DTR$BASE_YEAR logical name is used by DTR to define the first year of a 100 year window in which all 2-digit year dates fall. For example a value of 1980 defines a 100 year date window of 01-JAN-1980 to 31-DEC-2079. Customers who wish to have DTR continue to translate 2-digit year dates in the 20th century should set the DTR$BASE_YEAR logical to the value 1900 while customers who wish to have DTR behave exactly as before should not define the logical name. Problems Addressed in DTRVAXECO01072 o This kit fixes a problem in the Report Writer. When the AT TOP OF REPORT clause was executed, no output for the desired literal occurred. INSTALLATION NOTES: The images in this kit will not take effect until the system is rebooted. If there are other nodes in the VMScluster, they must also be rebooted in order to make use of the new image(s). All trademarks are the property of their respective owners.



This patch can be found at any of these sites:

Colorado Site
Georgia Site



Files on this server are as follows:

dtrvaxeco02072.README
dtrvaxeco02072.CHKSUM
dtrvaxeco02072.CVRLET_TXT
dtrvaxeco02072.a-dcx_vaxexe
dtrvaxeco02072.CVRLET_TXT

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