Use SAS Macro Variable within Proc SQL Teradata pa

问题:

I have a SQL statement that I wish to automate using SAS EG (9.4). The following statement has been tested in Teradata SQL Assistant and works.

select * from TD.DATA where date='2015-06-01'

Now I wish to push this through a proc SQL pass through, and feed the date to the SQL program, like so....

proc sql;
connect to teradata as tera(user=&tera_user password="&tera_pwd" tdpid=terap);
create table MYDATA as 
select * from connection to tera
(
select * from TD.DATA where date='2015-06-01'
);
disconnect from tera;
quit;

The above code has been tested and produces the exact same output as the previous SQL statement. However, what I really want is to do something like this:

%let input_date='2015-06-01';
proc sql;
connect to teradata as tera(user=&tera_user password="&tera_pwd" tdpid=terap);
create table MYDATA as 
select * from connection to tera
(
select * from TD.DATA where date=&input_date.
);
disconnect from tera;
quit;

I have tried various combinations of quotations and different date formats....what am I missing here? Thanks.

回答1:

You can use the %BQUOTE() macro function to resolve macro variables within single quotes.

%let input_date = 2015-06-01;
proc sql;
  connect to teradata as tera(user=&tera_user password="&tera_pwd" tdpid=terap);
  create table MYDATA as 
  select * from connection to tera
  (
   select * from TD.DATA where date = %BQUOTE('&INPUT_DATE')
  );
  disconnect from tera;
quit;

回答2:

Try this:

%let input_date=2015-06-01;
proc sql;
connect to teradata as tera(user=&tera_user password="&tera_pwd" tdpid=terap);
create table MYDATA as 
select * from connection to tera
(
select * from TD.DATA where date=%str(%'&input_date%')
);
disconnect from tera;
quit;

回答3:

as with such format of date 201501 to make a working macrovariable

%let input_date = 201506;
%let input_date2=input(put(intnx('month',%sysfunc(inputn(&input_date,yymmn6.)),0,'b'),10.),yymmddd10.)
proc sql;
  connect to teradata as tera(user=&tera_user password="&tera_pwd" tdpid=terap);
  create table MYDATA as 
  select * from connection to tera
  (
   select * from TD.DATA where date = %BQUOTE('&INPUT_DATE2')
  );
  disconnect from tera;
quit;