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问题:
I am in little strange situation. It is a third party application which from front end doesn't allow user procedures or udf/scalar functions to be called.
Only option is to write SQL and below is how my data looks. First pic has a mistake last PID was suppose to be 1 and second last 2.
What I need it to be is this,
This can be easily done using UDF/cursor in this Advantage Database Server 9 but I don't have a choice. I don't know if it is really possible. In Sybase there exist a function called list which does this sort of work very easily but not sure here.
Application does allow to call built in functions.
回答1:
declare @table table ( PID integer, Medicine varchar(10) ) insert into @table values (1, 'ABC') insert into @table values (2, 'ABC') insert into @table values (1, 'DEF') insert into @table values (2, 'DEF') insert into @table values (1, 'GHI') SELECT DISTINCT a.PID, Medicine = STUFF((SELECT ',' + b.Medicine FROM @table b WHERE a.PID = b.PID FOR XML Path('')),1,1,'') FROM @table a
RESULT:
**PID Medicine** 1 ABC,DEF,GHI 2 ABC,DEF
回答2:
I ended up creating following function by connecting to Data Dictionary but I got the error.
CREATE FUNCTION GetReport_Meds ( PID varchar(15) ) RETURNS String BEGIN DECLARE Meds String; DECLARE CurMeds cursor AS SELECT med_code from medication where patient = TRIM(PID) and end_date is null; Meds = ""; OPEN CurMeds; WHILE FETCH CurMeds DO Meds = TRIM(Meds)+TRIM(CurMeds.med_code)+","; END WHILE; CLOSE CurMeds; RETURN LEFT(Meds,LEN(Meds)-1); END;
poQuery: Error 7200: AQE Error: State = HY000; NativeError = 5054; [iAnywhere Solutions][Advantage SQL][ASA] Error 5054: The command cannot be completed with the current user permissions. Cannot create function object in the data dictionary.
I have requested the company who created this db/app to add this function in the db so I can use it, lets see where I land.
