SQL query (Change csv id's to csv name's)

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Hi,
I have a query like this.

select pid,deptid from table1;

in which deptid is varchar and value like (1,3,4)

Now I have another table as department(deptid(int,PK), DeptName)

I want instead of get deptid from select I can get deptNames in csv.like

pid | deptname
1 | dept1,dept4,dept7
2 | dept4,dept9
What should be approach for this.

Thanks,

Posted 31-Jul-13 23:40pm

rahul-4u

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ArunRajendra 1-Aug-13 5:42am

Is you data in table like this

pid deptid
1 1,3,4
2 4,5

rahul-4u 1-Aug-13 5:48am

yes

3 solutions

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Raja Sekhar S · Accepted Answer · 2013-08-01T20:09:00

First Create this Function:

SQL

Use DataBase_Name
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

Create Function [dbo].[fnSplitter] (@IDs Varchar(4000)  )  
Returns @Tbl_IDs Table (ID nvarchar(100) COLLATE SQL_Latin1_General_CP1_CS_AS  ) 
As  

Begin 
 -- Append comma
 Set @IDs =  @IDs + ',' 
 -- Indexes to keep the position of searching
 Declare @Pos1 Int
 Declare @Pos2 Int
 
 -- Start from first character 
 Set @Pos1=1
 Set @Pos2=1

 While @Pos1<len(@ids)>
 Begin
  Set @Pos1 = CharIndex(',',@IDs,@Pos1)
  Insert @Tbl_IDs Select  Substring(@IDs,@Pos2,@Pos1-@Pos2) 
  -- Go to next non comma character
  Set @Pos2=@Pos1+1
  -- Search from the next charcater
  Set @Pos1 = @Pos1+1
 End 
 Return
End

After Adding the Function Use this Query:

SQL

Select t.PId,Stuff((Select ','+DeptName 
                    From DeptTable 
                    Where DeptId In (Select ID From fnSplitter(t.DeptId)) 
                    For XML Path(''), TYPE)
                    .value('.','VARCHAR(max)'), 1, 1, '') [DeptName]
From Table t

Tested Code:

Create Table #Temp
	(
	PId int, 
	DeptId VarChar(40) COLLATE SQL_Latin1_General_CP1_CS_AS
	)

Create Table #Dept
	(
	DeptId VarChar(40) COLLATE SQL_Latin1_General_CP1_CS_AS, 
	DeptName VarChar(40) COLLATE SQL_Latin1_General_CP1_CS_AS
	)

Insert into #Temp 
Select 1,'1,2,3' Union all
Select 2,'4,5' 

Insert into #Dept 
Select '1','Dept1' Union All
Select '2','Dept2' Union All
Select '3','Dept3' Union All
Select '4','Dept4' Union All
Select '5','Dept5' 

Select t.PId,Stuff((Select ','+DeptName 
                    From #Dept 
                    Where DeptId In ( Select ID From fnSplitter(t.DeptId)) 
                    For XML Path(''), TYPE)
                    .value('.','VARCHAR(max)'), 1, 1, '') [DeptName] 
From #Temp t


Drop Table #Temp
Drop Table #Dept

Output:

PId	DeptName
---     ---------
1	Dept1,Dept2,Dept3
2	Dept4,Dept5

vassynet · Accepted Answer · 2013-08-07T23:00:00

Create Table #Emp
	(
	PId int, 
	DeptId VarChar(40) 
	)
 
Create Table #Dept
	(
	DeptId VarChar(40) 
	DeptName VarChar(40) 
	)
 
Insert into #Emp 
Select 1,'1,2,3' Union all
Select 2,'4,5' 
 
Insert into #Dept 
Select '1','Dept1' Union All
Select '2','Dept2' Union All
Select '3','Dept3' Union All
Select '4','Dept4' Union All
Select '5','Dept5' 
 
SELECT pid, Depts = STUFF((SELECT ',' + d.DeptName 
    FROM #Dept AS d
    INNER JOIN #Emp AS ei
    ON ',' + ei.deptid + ',' LIKE '%,' + CONVERT(VARCHAR(12), d.deptid) + ',%'
    WHERE ei.pid = e.pid
    ORDER BY DeptName
    FOR XML PATH, TYPE).value('.[1]', 'nvarchar(max)'), 1, 1, '')
FROM #Emp AS e
ORDER BY pid;
 

Drop Table #Emp
Drop Table #Dept

_Asif_ · Accepted Answer · 2013-08-01T00:09:00

Well you can use following approach.

* You create a function that will return comma separated department names associated with a given pid.

SQL

CREATE FUNCTION dbo.GetCommaSepDepartments(@pid int)
RETURNS varchar(1000)
WITH EXECUTE AS CALLER
AS
BEGIN
     DECLARE @temp varchar;
     SET @temp = (SELECT SUBSTRING(
                  (SELECT ',' + D.DeptName
                   FROM Table1 s
                   INNER JOIN Department D on s.deptid = D.Deptid
                   where s.pid = tpid
                   ORDER BY D.DeptName
                   FOR XML PATH('')
                  ),2,200000)
                 );

     RETURN(@temp);
END;

* After this you can use below query to get the final result

XML

<pre lang="sql">
select T1.pid, GetCommaSepDepartments(@tpid int)
from table1 T1;
</pre>

SQL query (Change csv id's to csv name's)

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