I have been deleting records logically from one dataset , when i checked size of dataset is remains always same after deletion of records also .
Query used :-
proc sql;
delete from ADFBASE.advdep_final_sas1;
quit;
Result :-
NOTE: 57589 rows were deleted from ADFBASE.ADVDEP_FINAL_SAS1.
But when i checked size of ADFBASE.ADVDEP_FINAL_SAS1 in server , it is still same after deletion of 57589 records.
we are using same code for many dataset and it is just deleting data only Logically not physically.
I want to delete the records which are already deleted so that it will free size for that dataset.
How to delete records which were already deleted logically ?
you need just copy it to itself:
data ADFBASE.ADVDEP_FINAL_SAS1;
set ADFBASE.ADVDEP_FINAL_SAS1;
run;
the logical deleted observations will not be copied.
Do you want to delete all records or remove the table entirely?
I want to remove some records physically which is already removed from dataset using below query:-
proc sql ;
delete from advdep_final_sas1;
quit;
after using above query the size of datset remains same that means it is not deleting records from dataset physically.
How to remove records from dataset which was deleted previouslly ?
you need just copy it to itself:
data ADFBASE.ADVDEP_FINAL_SAS1;
set ADFBASE.ADVDEP_FINAL_SAS1;
run;
the logical deleted observations will not be copied.
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