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04 Subqueries.sas
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04 Subqueries.sas
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%let path=/courses/d649d56dba27fe300/STA5067/SAS Data;
libname nhlab "&path/nhanes1999/lab";
libname nhmort "&path/nhanes1999/mortality";
libname nh9 (nhlab nhmort);
libname orion "&path/orion";
libname train "&path/train";
/*01 Intro to Subqueries*/
proc sql;
create table bp2 as
select
mean(bpxsy1,bpxsy2,bpxsy3,bpxsy4) as mnsbp,
mean(bpxdi1,bpxdi2,bpxdi3,bpxdi4) as mndbp,
seqn
from nh9.bloodpressure
where calculated mnsbp ne . and calculated mndbp ne . and
seqn in (select seqn from nh9.mortality
where eligstat=1)
;
quit;
proc means data=bp2;
run;
/*02 Subqueries*/
proc sql;
select *
from orion.Staff
;
select avg(Salary) as MeanSalary
from orion.Staff
;
select Job_Title, avg(Salary) as MeanSalary
from orion.Staff
group by Job_Title
having avg(Salary) > 38041.51
;
quit;
/*03 Types of Subqueries*/
proc sql;
select Employee_ID, avg(Salary) as MeanSalary
from orion.Employee_payroll
where 'AU'=
(select Country
from orion.supervisors
where Employee_payroll.Employee_ID=
Supervisors.Employee_ID)
;
quit;
/*04 Noncorrelated Subqueries*/
proc sql;
select count(distinct job_title)
from orion.staff
;
proc freq data=orion.staff nlevels;
table job_title/noprint;
run;
proc sql;
select Job_Title, avg(Salary) as MeanSalary
from orion.Staff
group by Job_Title
having avg(Salary) >
( select avg(Salary) as MeanSalary
from orion.Staff );
quit;
proc sql;
select Employee_ID,
Employee_Name, City,
Country
from orion.Employee_Addresses
where Employee_ID in
(select Employee_ID
from orion.Employee_Payroll
where month(Birth_Date)=2)
order by 1
;
quit;
/*single-value non correlated subquery*/
proc sql;
select jobcode,
avg(salary) as AvgSalary
format=dollar11.2
from train.payrollmaster
group by jobcode
having avg(salary) >
(select avg(salary) from
train.payrollmaster)
;
quit;
/*multiple value noncorrelated subquery*/
proc sql;
select empid,lastname,firstname,
city,state
from train.staffmaster
where empid in
(select empid
from train.payrollmaster
where month(dateofbirth)=12)
;
quit;
/* any keyword*/
proc sql;
select empid,jobcode,dateofbirth
from train.payrollmaster
where jobcode in ("FA1","FA2")
and dateofbirth < any
(select dateofbirth
from train.payrollmaster
where jobcode="FA3")
;
quit;
/*all keyword*/
proc sql;
select empid,jobcode,dateofbirth
from train.payrollmaster
where jobcode in ("FA1","FA2")
and dateofbirth < all
(select dateofbirth
from train.payrollmaster
where jobcode="FA3")
;
quit;
/*05 Correlated Subqueries*/
proc sql;
create table work.Supervisors as
select distinct Manager_Id as Employee_Id,
upcase(Country) as Country
from orion.Employee_Addresses as e,
orion.Staff as s
where e.Employee_Id=s.Manager_Id
and e.employee_id in
(120103,120104,120260,120262,120668,120672,120679,120735,
120736,120780,120782,120798,120800,121141,121143)
;
quit;
proc print data=supervisors;run;
proc sql;
select Employee_ID,
catx(' ',scan(Employee_Name,2),
scan(Employee_Name,1)) as Manager_Name length=25
from orion.Employee_Addresses
where 'AU'=
(select Country
from Work.Supervisors
where Employee_Addresses.Employee_ID=
Supervisors.Employee_ID) ;
quit;
/*create table aliases*/
proc sql;
select Employee_ID,
catx(' ',scan(Employee_Name,2),
scan(Employee_Name,1)) as Manager_Name length=25
from orion.Employee_Addresses as e
where 'AU'=
(select Country
from Work.Supervisors as s
where e.Employee_ID=s.Employee_ID)
;
quit;
proc sql;
select Employee_ID,
catx(' ',scan(Employee_Name,2),
scan(Employee_Name,1)) as Manager_Name length=25
from orion.Employee_Addresses e
where 'AU'=
(select Country
from Work.Supervisors s
where e.Employee_ID=s.Employee_ID)
;
quit;
proc sql;
select Employee_ID, Job_Title
from orion.sales
where not exists
(select *
from orion.Order_Fact
where Sales.Employee_ID=Order_Fact.Employee_ID);
quit;
proc sql;
select lastname,firstname
from train.staffmaster as a
where "NA"=
(select jobcategory
from train.supervisors as b
where a.empid=
b.empid);
quit;
proc sql;
select lastname,firstname
from train.flightattendants as a
where not exists
(select *
from train.flightschedule as s
where a.empid=
s.empid);
quit;