Concatentate and pivot data
Oracle 11g Release 2
I have three tables: file_data, notes and comments. One-to-many relationship exists between file_data and the other two tables.
The primary keys for all tables: file_id and record_id.
I need to rotate the notes.notes and comments.comment_txt and then concatenate them into a single string.
Here is the configuration:
create table file_data ( file_id number ,record_id number ,rec_txt varchar2(255) ) / insert into file_data values(1,1,'yadda') / insert into file_data values(1,2,'nadda') / insert into file_data values(1,3,'badda') / insert into file_data values(1,4,'sadda') / insert into file_data values(1,5,'padda') / create table notes ( file_id number ,record_id number ,note varchar2(255) ) / insert into notes values(1,1,'note1') / insert into notes values(1,2,'note2a') / insert into notes values(1,2,'note2b') / insert into notes values(1,2,'note2c') / insert into notes values(1,3,'note3') / insert into notes values(1,4,'note4') / insert into notes values(1,5,'note5') / create table comments ( file_id number ,record_id number ,comment_txt varchar2(255) ) / insert into comments values(1,1,'comment') / insert into comments values(1,2,'comment2a') / insert into comments values(1,2,'comment2b') / insert into comments values(1,3,'comment') / insert into comments values(1,4,'comment') / insert into comments values(1,5,'comment') / commit; col rec_txt for a10 col note for a10 col comment_txt for a11 select f.file_id, f.record_id, f.rec_txt,n.note,c.comment_txt from file_data f, notes n, comments c where f.file_id = 1 and f.file_id = n.file_id and f.record_id = n.record_id and f.file_id = c.file_id and f.record_id = c.record_id ; FILE_ID RECORD_ID REC_TXT NOTE COMMENT_TXT ---------- ---------- ---------- ---------- ----------- 1 1 yadda note1 comment 1 2 nadda note2a comment2b 1 2 nadda note2a comment2a 1 2 nadda note2b comment2b 1 2 nadda note2b comment2a 1 2 nadda note2c comment2b 1 2 nadda note2c comment2a 1 3 badda note3 comment 1 4 sadda note4 comment 1 5 padda note5 comment
This is the desired result:
FILE_ID RECORD_ID REC_TXT NOTE_COMMENT ---------- ---------- ---------- --------------------- 1 1 yadda NOTE1COMMENT 1 2 nadda NOTE2ACOMMENT2BNOTE2ACOMMENT2ANOTE2BCOMMENT2BNOTE2BCOMMENT2ANOTE2CCOMMENT2BNOTE2CCOMMENT2A 1 3 badda NOTE3COMMENT 1 4 sadda NOTE4COMMENT 1 5 padda NOTE5COMMENT
The final output should be cut and uppercase. The solution can be SQL or PL/SQL. Any thoughts on how to achieve this?
Select f.file_id,
f.record_id,
f.rec_txt,
listagg(n.note || c.comment_txt) Group (control 1) note_comment
of file_data f.
n notes
c comments
where f.file_id = 1
and f.file_id = n.file_id
and f.record_id = n.record_id
and f.file_id = c.file_id
and f.record_id = c.record_id
F.file_id group,
f.record_id,
f.rec_txt
order of f.file_id,
f.record_id,
f.rec_txt
/
FILE_ID RECORD_ID REC_TXT NOTE_COMMENT
---------- ---------- ------- --------------------------------------------------------------------------------
1 1 note1comment bla
1 2 note2acomment2anote2acomment2bnote2bcomment2anote2bcomment2bnote2ccomment2anote2 nadda
ccomment2b
1 3 badda note3comment
1 4 sadda note4comment
1 5 note5comment padda
SY.
Tags: Database
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