joining two different table - sql-server

Question

i have couple of tables that i am joining
organization table:
id, name
registration table:
id, name
after i execute this is how it looks
org_id org_name reg_name reg_id
--------------------------------------------------------
329 abc regname1 311
329 abc regname2 298
what i want to do is to display the data ONE row like this:
org_id org_name reg_name reg_id
------------------------------------------------------------------------
329 abc regname1;regname2 311;298
note: my reg_name is dynamic, it might be one or ten.

Answer 1

I'd say give this post a try: comma separated list in SQL-server.

Answer 2

What you're looking for is a SQLCLR custom aggregator. You would then use your hand crafted custom aggregator in much the same way you'd use the SUM aggregator.
A rough-cut custom aggregator that will accumulate strings, sort them and then join with a semi-colon would looke like this:
[Serializable]
[Microsoft.SqlServer.Server.SqlUserDefinedAggregate(Format.UserDefined, MaxByteSize=-1)]
public struct JoinString : IBinarySerialize
{
List<String> strings;
public void Init()
{
strings = new List<String>();
}
public void Accumulate(SqlString input)
{
strings.Add(input.Value);
}
public void Merge(JoinString Group)
{
strings.AddRange(Group.strings.ToArray());
}
public SqlString Terminate()
{
strings.Sort();
return new SqlString(String.Join(";", strings.ToArray()));
}
public void Read(System.IO.BinaryReader r)
{
int items = r.ReadInt32();
strings = new List<String>(items);
for (var i = 0; i < items; i++)
strings.Add(r.ReadString());
}
public void Write(System.IO.BinaryWriter w)
{
w.Write(strings.Count);
foreach (var s in strings)
w.Write(s);
}
}

Answer 3

In Oracle, you can use the list_aggr function also.
For example:
SELECT deptno, LISTAGG(ename, ',') WITHIN GROUP (ORDER BY ename) AS employees
FROM emp
GROUP BY deptno;
Your query should like something:
SELECT a.org_id,a.org_nam, LISTAGG(reg_name, ';') WITHIN GROUP (ORDER BY a.org_id) AS reg_name, LISTAGG(reg_id, ';') WITHIN GROUP (ORDER BY a.org_id) AS reg_id
FROM organization a , registration b
where b.org_id = a.org_id
GROUP BY a.org_id,a.org_nam;