Here is my code:
proc sql;
create table reenroll_statecourses_teacher as select
c.*,r.* from statecourses_teacher as c left join join1 as r
on c.studentID=r.studentID and c.crs_schoolid=r.schoolid and c.termid lt 0 and (c.dateleft=r.exitdate or c.dateleft=r.exitdate+1)
order by studentID;
quit;
I believe the part in bold "and c.termid lt 0" is not correct because the matching is not what I'm wanting. I only want observations from the data set "statecourses_teacher" WHERE the termid is negative but I get matches where termid is both positive and negative. I checked and termid is a numeric value.
I appreciate any help.
Gregg
In a left join, every record from the left table is included in the result, even when the on condition is not met. Move the condition to a where clause :
proc sql;
create table reenroll_statecourses_teacher as select
c.*,r.* from statecourses_teacher as c left join join1 as r
on c.studentID=r.studentID and c.crs_schoolid=r.schoolid and (c.dateleft=r.exitdate or c.dateleft=r.exitdate+1)
where c.termid lt 0
order by studentID;
quit;
PG
In a left join, every record from the left table is included in the result, even when the on condition is not met. Move the condition to a where clause :
proc sql;
create table reenroll_statecourses_teacher as select
c.*,r.* from statecourses_teacher as c left join join1 as r
on c.studentID=r.studentID and c.crs_schoolid=r.schoolid and (c.dateleft=r.exitdate or c.dateleft=r.exitdate+1)
where c.termid lt 0
order by studentID;
quit;
PG
Thank you very much. I am getting the expected results now.
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