Convert multiple rows to one row with multiple columns
Hi
i have a table Match_1 with 2 columns 'Source' and 'target'.One source can have multiple targets and that number could be anything
CREATE TABLE Match_1
Source CHAR(1),
Target CHAR(1)
INSERT INTO Match_1 VALUES ('A', 'B');
INSERT INTO Match_1 VALUES ('A', 'C');
INSERT INTO Match_1 VALUES ('A', 'D');
INSERT INTO Match_1 VALUES ('A', 'E');
INSERT INTO Match_1 VALUES ('V', 'X');
INSERT INTO Match_1 VALUES ('V', 'Y');
INSERT INTO Match_1 VALUES ('V', 'X');
INSERT INTO Match_1 VALUES ('V', 'W');
COMMIT;
i need to get my output in the below format
Source target 1 target 2 target 3 target 4 target n
A B C D
V X Y Z W
Could you please provide me the required SQL.
REgards
-Learnsequel
What is your database version (4 digit) ? also my example won't be generate columns for your information:
it will produce a result like that :
select source, listagg(target,',') within group (order by target)
from match_1
group by source;
A B,C,D,E
V W,X,X,Yps: in previos post, I wrote "with" word wrong in sql.
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I wanted to display the multiple rows in one row but column should be diff
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but when i am runing the query I am getting multiple record against one eno number because of uid1,uid2,uid3
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/* Formatted on 2012/05/29 16:29 (Formatter Plus v4.8.8) */
WITH t AS
(SELECT 1 col1, 'a' col2, 'u1' col3
FROM DUAL
UNION ALL
SELECT 1 col1, 'a' col2, 'u2' col3
FROM DUAL
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FROM DUAL
UNION ALL
SELECT 1 col1, 'b' col2, 'u1' col3
FROM DUAL
UNION ALL
SELECT 1 col1, 'b' col2, 'u3' col3
FROM DUAL
UNION ALL
SELECT 1 col1, 'b' col2, 'u2' col3
FROM DUAL
UNION ALL
SELECT 1 col1, 'c' col2, 'u1' col3
FROM DUAL
UNION ALL
SELECT 1 col1, 'c' col2, 'u3' col3
FROM DUAL)
SELECT xx.col1, xx.col2, MAX (DECODE (xx.rn, 1, col3)) AS uid1, MAX (DECODE (xx.rn, 2, col3)) AS uid2,
MAX (DECODE (xx.rn, 3, col3)) AS uid3
FROM (SELECT t.col1, t.col2, t.col3, ROW_NUMBER () OVER (PARTITION BY col1, col2 ORDER BY col3) rn
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Message was edited by:
Dmytro Dekhtyaryuk
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