limit the number of values in the listagg function and create several games
Hi allI have a requirement where I would like to group one of the fields in a field based on the number of records. Lets say if we have an employee with multiple CODEZONE. Please see the example below. I want concatenation of each 10 EMPNO records into one. If she has more than 10 records for a given EMPNO, it should show in the form of another record.
For example:
EMPNO CODEZONE
A111 AL
A111 AK
A111 AZ
A111 AR
A111 CA
A111 CO
A111 CT
TO A111
A111 DC
A111 FL
A111 GA
A111 HI
B222 AL
B222 AK
B222 AZ
B222 AI
B222 KS
B222 KY
THE B222
B222 ME
B222 MD
MY B222
B222 MI
B222 CA
B222 CO
B222 CT
B222 OF
Result set:
EMPNO CODEZONE
A111 AL | AK | AZ | AR | CA | CO | CT | OF | DC | FL
A111 GA | HI
B222 AL | AK | AZ | AI | KS | KY | THE | ME | MD | MY
B222 MI | CA | CO | CT | OF
The above example can have any number of area CODE for a given EMPNO, the end result should show only a maximum of 10 codes for an EMPNO in each record. If she has more than 10 CODEZONE, it should show as another record. Please provide me with a generic statement to solve this problem. I was not able to control by setting the limit on records for an EMPNO gave to the LISTAGG function. Any ideas are much appreciated.
Thank you
1008754 wrote:
Hi allI have a requirement where I would like to group one of the fields in a field based on the number of records. Lets say if we have an employee with multiple CODEZONE. Please see the example below. I want concatenation of each 10 EMPNO records into one. If she has more than 10 records for a given EMPNO, it should show in the form of another record.
For example:
EMPNO CODEZONE
A111 AL
A111 AK
A111 AZ
A111 AR
A111 CA
A111 CO
A111 CT
TO A111
A111 DC
A111 FL
A111 GA
A111 HI
B222 AL
B222 AK
B222 AZ
B222 AI
B222 KS
B222 KY
THE B222
B222 ME
B222 MD
MY B222
B222 MI
B222 CA
B222 CO
B222 CT
B222 OFResult set:
EMPNO CODEZONE
A111 AL | AK | AZ | AR | CA | CO | CT | OF | DC | FL
A111 GA | HI
B222 AL | AK | AZ | AI | KS | KY | THE | ME | MD | MY
B222 MI | CA | CO | CT | OFThe above example can have any number of area CODE for a given EMPNO, the end result should show only a maximum of 10 codes for an EMPNO in each record. If she has more than 10 CODEZONE, it should show as another record. Please provide me with a generic statement to solve this problem. I was not able to control by setting the limit on records for an EMPNO gave to the LISTAGG function. Any ideas are much appreciated.
Thank you
ME_XE?with data (empno, areacode) as
2 (
3 select 'A111', 'AL' from dual union all
4 select 'A111', 'AK' from dual union all
5 select 'A111', 'AZ' from dual union all
6 select 'A111', 'AR' from dual union all
7 select 'A111', 'CA' from dual union all
8 select 'A111', 'CO' from dual union all
9 select 'A111', 'CT' from dual union all
10 select 'A111', 'DE' from dual union all
11 select 'A111', 'DC' from dual union all
12 select 'A111', 'FL' from dual union all
13 select 'A111', 'GA' from dual union all
14 select 'A111', 'HI' from dual union all
15 select 'B222', 'AL' from dual union all
16 select 'B222', 'AK' from dual union all
17 select 'B222', 'AZ' from dual union all
18 select 'B222', 'IA' from dual union all
19 select 'B222', 'KS' from dual union all
20 select 'B222', 'KY' from dual union all
21 select 'B222', 'LA' from dual union all
22 select 'B222', 'ME' from dual union all
23 select 'B222', 'MD' from dual union all
24 select 'B222', 'MA' from dual union all
25 select 'B222', 'MI' from dual union all
26 select 'B222', 'CA' from dual union all
27 select 'B222', 'CO' from dual union all
28 select 'B222', 'CT' from dual union all
29 select 'B222', 'DE' from dual
30 )
31 select
32 empno, listagg(areacode, ',') within group (order by emp_grp) as emp_list
33 from
34 (
35 select
36 ceil(row_number() over (partition by empno order by areacode) / 10) as emp_grp,
37 empno,
38 areacode
39 from data
40 )
41 group by empno, emp_grp;
EMPNO EMP_LIST
------------------------------ ------------------------------
A111 AK,AL,AR,AZ,CA,CO,CT,DC,DE,FL
A111 GA,HI
B222 AK,AL,AZ,CA,CO,CT,DE,IA,KS,KY
B222 LA,MA,MD,ME,MI
4 rows selected.
Elapsed: 00:00:00.05
ME_XE?
In the future, it would be nice if you could provide baseline data.
See you soon,.
Tags: Database
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