Hello
I am using proc append while import CSV files.
What is the reason that proc append is not working?
I am checking and dataset tbl_All was not created?
What is the correct code to do it please?
%macro import_one(YYYYMMDD);
%if %sysfunc(fileexist(/path/Revenue&YYYYMMDD.))
%then %do;
data tbl&YYYYMMDD.;
infile "path/Revenue&YYYYMMDD."
dlm=';' dsd truncover firstobs=2;
input VAR1-VAR59;
run;
%end;
%else %do;
data tbl&YYYYMMDD.;
Format VAR1-VAR59 8.;
stop;
run;
%end;
proc append base=tbl_All data=tbl&YYYYMMDD. force; run; quit;
proc delete data=tbl&YYYYMMDD.;Run;
%mend import_one;
Data datestbl;
input YYYYMMDD $;
call execute('%nrstr(%import_one('!!YYYYMMDD!!'))');
cards;
20191231
20210101
20210102
20210103
20210104
20210105
;
Run;
Maxim 2: Read the Log.
If that does not give you a sufficient clue, post the log here.
You seem to already have a BASE dataset that does not contain your variables. Make sure that this dataset does not exist before you run your code.
Also, while developing/debugging, comment the PROC DELETE, so you can inspect the intermediate files.
But if your goal is to read a sequence of csv files into one dataset, you can do that in a single data step by using the FILEVAR= option of the INFILE statement and a loop for reading each file:
data want;
set datestbl;
fname = "/path/revenue" !! yymmdd;
if fileexist(fname)
then do;
infile dummy filevar=fname dlm="," dsd truncover end=done;
do until (done);
input var1-var59;
output;
end;
end;
run;
To prevent the step from stopping on the first empty file switch from UNTIL() to WHILE().
do while (not done);
The filenames are different here:
%if %sysfunc(fileexist(/path/RevenueA&YYYYMMDD.))
%then %do;
data tbl&YYYYMMDD.;
infile "path/Revenue&YYYYMMDD."
In the INFILE statement, there is no leading slash, and no A before the date, but both are present in the FILEEXIST call.
Thank you, I have changed the tables names because I cannot copy names from my work.
The import is running well .
IF the CSV file exists then a data set is created (with rows and columns).
IF the CSV file doesnt exist then an empty data set is created with 0 rows and columns .
In both cases columns are same (VAR-VAR59 with same attributes: all numerical).
The proc append is not working.
May anyone know why?
@Ronein wrote:
Thank you, I have changed the tables names because I cannot copy names from my work.
The import is running well .
IF the CSV file exists then a data set is created (with rows and columns).
IF the CSV file doesnt exist then an empty data set is created with 0 rows and columns .
In both cases columns are same (VAR-VAR59 with same attributes: all numerical).
The proc append is not working.
May anyone know why?
You need to make sure the empty datasets have the exact same structure as the other datasets.
I showed you how to modify the placement of the %IF block in the middle of the data step so that the empty datasets have the same structure as the other datasets in your other thread.
Log.
I do not see any file extension such as CSV in your FILEEXIST or INFILE statements. Which is pretty suspect.
The import is working well.
The source files are without CSV end .
But they are with delimiter ;
As I said the import is working well but the proc append not
Now this is working,
%macro import_one(YYYYMMDD);
%if %sysfunc(fileexist(/path/Revenue&YYYYMMDD.))
%then %do;
data Revenue;
infile "path/Revenue&YYYYMMDD."
dlm=';' dsd truncover firstobs=2;
input VAR1-VAR59;
run;
%end;
%else %do;
data Revenue;
Format VAR1-VAR59 8.;
stop;
run;
%end;
proc append base=Revenue_All data=Revenue force; run; quit;
%mend import_one;
Data datestbl;
input YYYYMMDD $;
call execute('%nrstr(%import_one('!!YYYYMMDD!!'))');
cards;
20191231
20210101
20210102
20210103
20210104
20210105
;
Run;
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