Have you used macros? For what purpose you have used? : sas-macro
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how can u create zero observation dataset?
What are the differences between proc means and proc summary?
What is difference between (a-z) and (a--z)
How many missing values are available? When might you use them?
how to delete the duplicates by using proc sql?
what other sas products have you used and consider yourself proficient in using? : Sas programming
Give e an example of..
how do you debug and test your sas programs? : Sas programming
hi tell be about pfizer? how to compare the work with other companies ? please tell me how to login and work also?
Explain input and put function?
what is the difference between nodup and nodupkey options? : Sas programming
whenever we using the merging through data set merging ,we can get note in log like this "MERGE STATEMENT HAS MORE THAN ONE ONE DATASET BY REPEATED BY VAIABLES" but the output has come in good manner,whenever in in sql(full join) we can get cartion product.so How do overcome this problem in sql?