Hi, I'm trying to understand item_size in HASH. It's the size of what ? Is it the number of bytes of all the key, all the variables, both ? The docum is not really explicite...So, I ran this code https://documentation.sas.com/?docsetId=lecompobjref&docsetTarget=p195co8u1s7a91n1xv1get0544t3.htm&docsetVersion=9.4&locale=en data work.stock; input prod $1-10 qty 12-14; datalines; broccoli 345 corn 389 potato 993 onion 730 ; data _null_; if _N_ = 1 then do; length prod $10; /* Declare hash object and read STOCK data set as ordered */ declare hash myhash(dataset: "work.stock"); /* Define key and data variables */ myhash.defineKey('prod'); myhash.defineData('qty'); myhash.defineDone(); end; /* Add a key and data value to the hash object */ prod = 'celery'; qty = 183; rc = myhash.add(); /* Use ITEM_SIZE to return the size of the item in hash object */ itemsize = myhash.item_size; put itemsize=; run; itemsize=40  is written to the SAS log. But when I run in SAS University, it's more 64 How come it's not 40 like the example ? And it looks like the input of the first data step is very wrong !!!    It nullifies the second variable. The codes supplied in the SAS docum... is there someone who test it before it is published on SAS site ? Hoping to hear from someone Have a nice day michel.jubinville@hotmail.ca ... View more

Hi, I tested this code data h ; input key hdata ; cards ; 1 5 1 10 1 15 2 9 2 11 2 16 3 20 3 100 4 6 5 5 5 99 ; run ; data _null_ ; if 0 then set H ; dcl hash H (dataset: "H", multidata: "Y", ordered: "A") ; h.definekey ("key") ; h.definedata ("key", "hdata") ; h.definedone () ; do key = 1, 2, 5 ; put '01 - key est ' key; do find_rc = h.find() by 0 while (find_rc = 0) ; put ' au do find, find_rc est ' find_rc; put ' 02 - hdata est ' hdata; if hdata > 9 then remove_rc = h.removedup() ; put ' 03 - remove_rc est ' remove_rc; find_rc = h.find_next() ; put ' 04 - find_rc est ' find_rc; end ; end ; dcl hiter ih ("H") ; do while (ih.next() = 0) ; put key= hdata= ; end ; run ; AND GOT THIS RESULT: NOTE: There were 11 observations read from the data set WORK.H. 01 - key est 1 au do find, find_rc est 0 02 - hdata est 5 03 - remove_rc est . 04 - find_rc est 0 au do find, find_rc est 0 02 - hdata est 10 03 - remove_rc est 0 04 - find_rc est 160038 01 - key est 2 au do find, find_rc est 0 02 - hdata est 9 03 - remove_rc est 0 04 - find_rc est 0 au do find, find_rc est 0 02 - hdata est 11 03 - remove_rc est 0 04 - find_rc est 160038 01 - key est 5 au do find, find_rc est 0 02 - hdata est 5 03 - remove_rc est 0 04 - find_rc est 0 au do find, find_rc est 0 02 - hdata est 99 03 - remove_rc est 0 04 - find_rc est 160038 key=1 hdata=5 key=1 hdata=15 key=2 hdata=9 key=2 hdata=16 key=3 hdata=20 key=3 hdata=100 key=4 hdata=6 key=5 hdata=5 NOTE: DATA STEP stopped due to looping. NOTE: DATA statement a utilisé (Durée totale du traitement) : real time 0.02 seconds cpu time 0.02 seconds   In the second 04 printing, I was expecting a 0 , cause there is in fact a next. What is that 160038 ????  It makes absolutely NO SENSE !!! And it goes on for others as well. . .   You can email me at michel.jubinville@hotmail.ca Thanks   ... View more