Browsing and Updating IMS Data |
You can update a SAS data file or data set with IMS data that is described by a view descriptor just as you can update a SAS data file with data from another SAS data file.
Suppose you have a SAS data set, MYDATA.BIRTHDAY, that contains employee ID numbers, last names, and birthdays. (See Example Data for a description of MYDATA.BIRTHDAY.) You want to update this data set with data that is described by VLIB.EMPBDAY, a view descriptor that is based on the IMS EMPLINF2 database. To perform this update, enter the following SAS statements:
libname vlib 'sas-data-library'; libname mydata 'sas-data-library'; options nodate; /*---------------------------------------------*/ /* Update the BIRTHDAY SAS data set */ /* with data from IMS */ /* EMPLINF2 database */ /*---------------------------------------------*/ options linesize=80; proc sort data=mydata.birthday; by employee_id; run; proc print data=mydata.birthday; title2 'Sorted SAS Data Set MYDATA.BIRTHDAY'; run; proc print data=vlib.empbday; title2 'Data Described by VLIB.EMPBDAY'; run; data mydata.newbday; update mydata.birthday vlib.empbday; by employee_id; run; proc print data=mydata.newbday; title2 'SAS Data Set MYDATA.NEWBDAY'; run;
The EMPLINF2 database is a HIDAM database whose root segment is sequenced by the key field EMPID, so when the UPDATE statement references the view descriptor VLIB.EMPBDAY, the data is presented to SAS for updating in sorted order by EMPLOYEE_ID. However, the SAS data set MYDATA.BIRTHDAY must be sorted before the update because the UPDATE statement expects both the original file and the transaction file to be sorted by the same BY variable.
The following three outputs show the results of the print procedures.
Data Set to be Updated, MYDATA.BIRTHDAY, in EMPID Order
The SAS System Sorted SAS Data Set MYDATA.BIRTHDAY employee_ OBS id last_name birthday 1 1005 Knapp 06OCT38 2 1024 Mueller 17JUN53 3 1078 Gibson 23APR36 4 1247 Garcia 04APR54
IMS Data That is Described by the View Descriptor VLIB.EMPBDAY
The SAS System Data Described by VLIB.EMPBDAY EMPLOYEE_ PHONE_ OBS ID LAST_NAME FIRST_NAME BIRTHDAY EXTENSION 1 1001 Waterhouse Clifton P. 01JAN48 X5109 2 1002 Bowman Hugh E. 14JUL31 X5901 3 1003 Salazar Yolanda 12DEC40 X5169 4 1004 Knight Althea 09APR50 X5218 5 1005 Knapp Patrice R. 04OCT37 X5012 6 1006 Garrett Olan M. 23JAN35 X5208 7 1007 Brown Virgina P. 24MAY46 X5258 8 1008 Hernandez Jesse L. 26MAR33 X5448 9 1009 Jones Michael Y. 21MAY31 X5713 10 1010 Smith Janet F. 07AUG47 X5621 11 1011 Van Hotten Gwendolyn 13SEP42 X5311 12 1012 Quintero Pedro 21FEB48 X5348 13 1015 Scholl Madison A. 19MAR45 X5419 14 1017 Waggonner Merrilee D. 27APR36 X5914 15 1020 Rudd Fred . 16 1024 Mueller Patsy 17JUN52 X5822 17 1031 Chan Tai 04JUL46 X5331 18 1049 Fernandez Sophia 11SEP44 X5847 19 1050 Ameer David 10OCT51 X5495 20 1062 Littlejohn Fannie 17MAY54 X5653 21 1067 Cahill Jacob 25DEC40 X5042 22 1071 Canady Frank A. 19NOV41 X5406 23 1074 Millsap Joel B. 12JUN36 X5224 24 1077 Gibson Teddy B. 23APR46 X5703 25 1078 Gibson George J. 23APR46 X5703 26 1083 Savage William D. 20JAN53 X5505 27 1086 Schmidt Penny 19FEB27 X5822 28 1092 Polanski Ivan L. 11OCT47 X5621 29 1101 Nathaniel Darryl 21MAR44 X5544 30 1105 Faulkner Carrie Ann 17AUG51 X5417 31 1112 Jones Rita M. 24DEC48 X5271 32 1119 Goodson Alan F. 21JUN50 X5512 33 1120 Reid David G. 15AUG45 X5369 34 1123 Freeman Leopold 09FEB35 X5604 35 1133 Williamson Janice L. 19MAY52 X5802 36 1139 Seaton Gary 03OCT56 X5545 37 1145 Juarez Armando 28MAY47 X5987 38 1156 Reed Kenneth D. 05JAN55 X5307 39 1161 Richardson Travis Z. 30NOV37 X5325 40 1213 Johnson Bradford 15APR54 X5446 41 1217 Rodriguez Romualdo R. 09FEB29 X5874 42 1219 Kaatz Freddie 21JUN57 X5387 43 1234 Shropshire Leland G. 04SEP49 X5616 44 1238 Throckmort Stewart Q. 04AUG31 X5391 45 1247 Garcia Francisco 05MAY55 X5348 46 1261 Collins Lillian 01MAY51 X5616 47 1265 Slye Leonard R. 18DEC60 X5123 48 1266 Redfox Richard B. 04APR44 X5386 49 1272 Smith Garland P. 05APR54 X5415 50 1313 Smith Jerry Lee 13SEP42 X5169 51 1327 Brooks Ruben R. 25FEB52 X5347 52 1900 Smith John .
Data in the New Data Set MYDATA.NEWBDAY
The SAS System SAS Data Set MYDATA.NEWBDAY employee_ PHONE_ OBS id last_name birthday FIRST_NAME EXTENSION 1 1001 Waterhouse 01JAN48 Clifton P. X5109 2 1002 Bowman 14JUL31 Hugh E. X5901 3 1003 Salazar 12DEC40 Yolanda X5169 4 1004 Knight 09APR50 Althea X5218 5 1005 Knapp 04OCT37 Patrice R. X5012 6 1006 Garrett 23JAN35 Olan M. X5208 7 1007 Brown 24MAY46 Virgina P. X5258 8 1008 Hernandez 26MAR33 Jesse L. X5448 9 1009 Jones 21MAY31 Michael Y. X5713 10 1010 Smith 07AUG47 Janet F. X5621 11 1011 Van Hotten 13SEP42 Gwendolyn X5311 12 1012 Quintero 21FEB48 Pedro X5348 13 1015 Scholl 19MAR45 Madison A. X5419 14 1017 Waggonner 27APR36 Merrilee D. X5914 15 1020 Rudd . Fred 16 1024 Mueller 17JUN52 Patsy X5822 17 1031 Chan 04JUL46 Tai X5331 18 1049 Fernandez 11SEP44 Sophia X5847 19 1050 Ameer 10OCT51 David X5495 20 1062 Littlejohn 17MAY54 Fannie X5653 21 1067 Cahill 25DEC40 Jacob X5042 22 1071 Canady 19NOV41 Frank A. X5406 23 1074 Millsap 12JUN36 Joel B. X5224 24 1077 Gibson 23APR46 Teddy B. X5703 25 1078 Gibson 23APR46 George J. X5703 26 1083 Savage 20JAN53 William D. X5505 27 1086 Schmidt 19FEB27 Penny X5822 28 1092 Polanski 11OCT47 Ivan L. X5621 29 1101 Nathaniel 21MAR44 Darryl X5544 30 1105 Faulkner 17AUG51 Carrie Ann X5417 31 1112 Jones 24DEC48 Rita M. X5271 32 1119 Goodson 21JUN50 Alan F. X5512 33 1120 Reid 15AUG45 David G. X5369 34 1123 Freeman 09FEB35 Leopold X5604 35 1133 Williamson 19MAY52 Janice L. X5802 36 1139 Seaton 03OCT56 Gary X5545 37 1145 Juarez 28MAY47 Armando X5987 38 1156 Reed 05JAN55 Kenneth D. X5307 39 1161 Richardson 30NOV37 Travis Z. X5325 40 1213 Johnson 15APR54 Bradford X5446 41 1217 Rodriguez 09FEB29 Romualdo R. X5874 42 1219 Kaatz 21JUN57 Freddie X5387 43 1234 Shropshire 04SEP49 Leland G. X5616 44 1238 Throckmort 04AUG31 Stewart Q. X5391 45 1247 Garcia 05MAY55 Francisco X5348 46 1261 Collins 01MAY51 Lillian X5616 47 1265 Slye 18DEC60 Leonard R. X5123 48 1266 Redfox 04APR44 Richard B. X5386 49 1272 Smith 05APR54 Garland P. X5415 50 1313 Smith 13SEP42 Jerry Lee X5169 51 1327 Brooks 25FEB52 Ruben R. X5347 52 1900 Smith . John
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