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GN0001
Barite | Level 11

This code doesn't work why?

  1. PROC IMPORT OUT=Balance_Bank1
  2. DataFile = "/home/nguityn0/Balance_Bank.xlsx"
  3. dbms=xlsx REPLACE;
  4. Sheet="Sheet1";
  5. INPUT Acc_Number$ Date Debit Credit;
  6. getnames=NO;
  7. RUN;
  8. Proc Sort Data=Balance_Bank1 OUT=Balance_Bank1Sorted;
  9. BY Acc_number;
  10. RUN;
  11.  
  12.  
  13. PROC IMPORT OUT=Balance_Bank2
  14. DataFile = "/home/nguityn0/Balance_Bank.xlsx"
  15. dbms=xlsx REPLACE;
  16. Sheet="Sheet2";
  17. INPUT Acc_Number$ Date Debit Credit;
  18. getnames=NO;
  19. Run;
  20.  
  21. Proc Sort Data=Balance_Bank2 OUT=Balance_Bank2Sorted;
  22. BY Acc_number;
  23. RUN;
  24.  
  25. Data NewCollection;
  26. MERGE Balance_Bank1Sorted Balance_Bank2Sorted;
  27. BY ACC_Number;
  28. RUN;
Blue Blue
1 ACCEPTED SOLUTION

Accepted Solutions
Kurt_Bremser
Super User

Since your datasets contain identically named columns (and I suppose the contain the same logical values), you do not want to merge or join, you want to stack the dataset by using both in the same SET statement; if they are already ordered by acc_number, you can preserve that order with a BY statement:

data newcollection;
set
  balance_bank1sorted
  balance_bank2sorted
;
by acc_number;
run;

This is called interleaving.

 

Regarding your question #1:

NO. A SQL join and a data step merge work differently, and produce completely different results when you have a many-to-many relationship; also, the data step MERGE tolerates identically named columns (and usually results in unexpected behavior), while SQL (rightfully) gives you a WARNING for that.

View solution in original post

26 REPLIES 26
SASKiwi
PROC Star

Please post your SAS log including any notes. Without this evidence we don't know what your problem is. 

GN0001
Barite | Level 11

This is the code:

PROC IMPORT OUT=Balance_Bank1
DataFile = "/home/nguityn0/Balance_Bank.xlsx"
dbms=xlsx REPLACE;
Sheet="Sheet1";
getnames=NO;
RUN;
DAtA Balance_Bank3;
Format Acc_Number Date Debit Credit;
SET balance_bank1;
RUN;

This is the log:

</

1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
72
73 PROC IMPORT OUT=Balance_Bank1
74 DataFile = "/home/nguityn0/Balance_Bank.xlsx"
75 dbms=xlsx REPLACE;
76 Sheet="Sheet1";
77 getnames=NO;
78 RUN;
 
NOTE: One or more variables were converted because the data type is not supported by the V9 engine. For more details, run with
options MSGLEVEL=I.
NOTE: The import data set has 5 observations and 4 variables.
NOTE: WORK.BALANCE_BANK1 data set was successfully created.
NOTE: PROCEDURE IMPORT used (Total process time):
real time 0.00 seconds
user cpu time 0.01 seconds
system cpu time 0.00 seconds
memory 2809.84k
OS Memory 33192.00k
Timestamp 03/29/2021 04:16:28 AM
Step Count 243 Switch Count 4
Page Faults 0
Page Reclaims 667
Page Swaps 0
Voluntary Context Switches 25
Involuntary Context Switches 0
Block Input Operations 0
Block Output Operations 264
 
 
79 DAtA Balance_Bank3;
80 Format Acc_Number Date Debit Credit;
81 SET balance_bank1;
82 RUN;
 
NOTE: Variable Acc_Number is uninitialized.
NOTE: Variable Date is uninitialized.
NOTE: Variable Debit is uninitialized.
NOTE: Variable Credit is uninitialized.
NOTE: There were 5 observations read from the data set WORK.BALANCE_BANK1.
NOTE: The data set WORK.BALANCE_BANK3 has 5 observations and 4 variables.
NOTE: DATA statement used (Total process time):
real time 0.00 seconds
user cpu time 0.00 seconds
system cpu time 0.00 seconds
memory 1168.43k
OS Memory 31660.00k
Timestamp 03/29/2021 04:16:28 AM
Step Count 244 Switch Count 2
Page Faults 0
Page Reclaims 130
Page Swaps 0
Voluntary Context Switches 10
Involuntary Context Switches 0
Block Input Operations 0
Block Output Operations 264
 
 
83
84 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;>
 
Regards,
Blue

 

Blue Blue
SASKiwi
PROC Star

You need to examine the data in your dataset WORK.BALANCE_BANK1. It contains 4 variables and 5 observations. Has it been populated as you expect? The notes in the following DATA step suggest you aren't getting the expected variable names and that may have something to do with the GETNAMES = NO statement. What happens if you try GETNAMES = YES?

GN0001
Barite | Level 11

I changed the GETName = Yes. It doesn't give me the order that I want.

Yes, I have four varialbes: Acc_Number Date Debit Credit and 5 observations.

Regards,

Blue Skey

Blue Blue
SASKiwi
PROC Star

Well your program doesn't include PROC SORT if you are referring to row order.

GN0001
Barite | Level 11

Your response helped me a lot.

Thanks for it.

Respectfully,

Guity

Blue Blue
japelin
Rhodochrosite | Level 12

The program is different from the first post. I thought the merging process didn't work properly?

Also, what are the variable names in Balance_Bank1 after import?

 

I'm guessing that the variables such as Acc_Number are probably not assigned correctly and thus cannot be merged.

 

proc contents data=Balance_Bank1 varnum;
run;

Run this and show us the list of variables.

GN0001
Barite | Level 11

I have not learned the code you put here. I am a new learner and I need to stick to the codes that the instructor is teaching us.

Regards,

Blue Sky

Blue Blue
japelin
Rhodochrosite | Level 12

copy and paste, then submit.

It will work.

GN0001
Barite | Level 11

I ran your codes and this is what I got:

Variable Type Len Format Label
1 Date Num 8 MMDDYY10. Date
2 Debit Num 8 BEST. Debit
3 Credit Num 8 BEST. Credit
4 Acc_Number Num 8 BEST. Acc_Number

 

Respectfully,

Blue Sky

Blue Blue
PaigeMiller
Diamond | Level 26

I assume your title should say "Change the order of OBSERVATIONS", not "change the order of variables", as the order of variables would not affect a merge.

 

In any event, I think your two PROC IMPORTs wind up causing errors and don't create data sets. But as stated by @SASKiwi , show us the LOG of this entire section of code, all of the LOG, that's 100%, every single character in the LOG for this part of the code, with nothing chopped out, and without you selecting parts to show us and not showing us other parts.

--
Paige Miller
GN0001
Barite | Level 11

Hello PaigeMiller,

 

Variables are columns or fields and observations are rows.

I need to change the order of variables.

 

Respectfully,

Blue Sky

Blue Blue
PaigeMiller
Diamond | Level 26

@GN0001 wrote:

Hello PaigeMiller,

 

Variables are columns or fields and observations are rows.

I need to change the order of variables.

 

Respectfully,

Blue Sky


So you say you get errors, but you haven't shown us the errors in the LOG you provided.

 

You don't need to change the order of variables to achieve a merge. None of what you said or showed us makes sense.

--
Paige Miller
GN0001
Barite | Level 11

Hello,

 

Are you saying observation orders are not important? Can I merge two data sets although the order of variables are different?

 

Respectfully,

Blue sky

Blue Blue

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