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Help with creating a new ID

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Topic

maevr
Posting Yak Master

169 Posts

Posted - 2010-12-21 : 16:31:06

I need to create a new ID based on the criteria below:
myNewID should be based on myType, myYear and a seed number based on how many occurances there is of the specific sort.
IF myType is S then the myNewID should start with 'S' then check the myYear to set the next character and then a seed number.
myYear < 1960 = 1
myYear between 1960 and 1980 = 2
myYear > 1980 = 3

create table #table1(
myOldID varchar(20) not null
,myNewID varchar(10) null
,myType varchar(1) not null
,myYear int not null
)

insert into #table1(myOldID, myType, myYear) values('1080100', 'S', 1950)
insert into #table1(myOldID, myType, myYear) values('4888383', 'S', 1958)
insert into #table1(myOldID, myType, myYear) values('1191717', 'S', 1974)
insert into #table1(myOldID, myType, myYear) values('1080200', 'L', 1968)
insert into #table1(myOldID, myType, myYear) values('1031234', 'L', 1999)
insert into #table1(myOldID, myType, myYear) values('1997551', 'F', 2004)
insert into #table1(myOldID, myType, myYear) values('2000876', 'F', 2009)
insert into #table1(myOldID, myType, myYear) values('1876444', 'F', 1982)

Expected output:
1080100, S1001, S, 1950)
4888383, S1002, S, 1958)
1191717, S2001, S, 1974)
1080200, L2001, L, 1968)
1031234, L3001, L, 1999)
1997551, F3001, F, 2004)
2000876, F3002, F, 2009)
1876444, F3003, F, 1982)

X002548
Not Just a Number

15586 Posts

Posted - 2010-12-21 : 16:46:06

..needs some work


SELECT myType + CONVERT(char(1),
	  CASE	WHEN myYear < = 1960					 THEN 1
			WHEN myYear >   1960 AND myYear < = 1980 THEN 2
			WHEN myYear >   1980					 THEN 3
													 ELSE 0
	  END), ROW_NUMBER() OVER(ORDER BY myYear)
  FROM #table1

Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx

Want to help yourself?

http://msdn.microsoft.com/en-us/library/ms130214.aspx

http://weblogs.sqlteam.com/brettk/

http://brettkaiser.blogspot.com/

maevr
Posting Yak Master

169 Posts

Posted - 2010-12-21 : 17:03:35

Hi, thanks for the fast reply!

Your code looks like the one I wrote before I got stuck.
the seed number must begin from 1 for every new occurance

S1001
S1002
S1003
L2001
L3001
F3001
F3002
.
.
.

X002548
Not Just a Number

15586 Posts

Posted - 2010-12-21 : 17:40:33

Try making it a derived table, then find the MIN and use it to subtract itself -1 for each number in the range

Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx

Want to help yourself?

http://msdn.microsoft.com/en-us/library/ms130214.aspx

http://weblogs.sqlteam.com/brettk/

http://brettkaiser.blogspot.com/

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