Using Pivot on Multiple Columns of an Oracle Row

Using pivot on multiple columns of an Oracle row

As the documentation shows, you can have multiple aggregate function clauses. So you can do this:

select * from (
  select * from tab1
)
pivot (
  count(type) as ct, sum(weight) as wt, sum(height) as ht
  for type in ('A' as A, 'B' as B, 'C' as C)
);

A_CT A_WT A_HT B_CT B_WT B_HT C_CT C_WT C_HT
---- ---- ---- ---- ---- ---- ---- ---- ----
   2  110   22    1   40    8    1   30   15 

If you want the columns in the order you showed then add another level of subquery:

select a_ct, b_ct, c_ct, a_wt, b_wt, c_wt, a_ht, b_ht, c_ht
from (
  select * from (
    select * from tab1
  )
  pivot (
    count(type) as ct, sum(weight) as wt, sum(height) as ht
    for type in ('A' as A, 'B' as B, 'C' as C)
  )
);

A_CT B_CT C_CT A_WT B_WT C_WT A_HT B_HT C_HT
---- ---- ---- ---- ---- ---- ---- ---- ----
   2    1    1  110   40   30   22    8   15 

SQL Fiddle.

Pivot in Oracle based on multiple columns

You can definitely use multiple columns within a PIVOT clause, here is an example using your table setup:

SELECT *
FROM demo
PIVOT (MAX(VALUE) FOR (identifier_1, identifier_2) IN ((3000, 23) AS A3000_23, (3000, 24) AS A3000_24,
                                                        (3001, 25) AS A3001_25, (3001, 26) AS A3001_26));

N.B.: Excuse the "A" in the column names, you need to start the identifier with a character, not a number.

Here is a DBFiddle showing the results (LINK)

Obviously you can see how this would quickly grow out-of-hand if you need to list large amounts of PIVOT columns.

Pivoting of data using two columns

Here is a way to get the data in the format you want:

SELECT user_id, 
  max(case when lang = 'FI' THEN org ELSE ' ' END) org_fi,
  max(case when lang = 'FI' THEN position ELSE ' ' END) position_fi,
  max(case when lang = 'EN' THEN org ELSE ' ' END) org_en,
  max(case when lang = 'EN' THEN position ELSE ' ' END) position_en,
  max(case when lang = 'SV' THEN org ELSE ' ' END) org_sv,
  max(case when lang = 'SV' THEN position ELSE ' ' END) position_sv
FROM source
group by user_id
order by user_id

See SQL Fiddle with Demo

In Oracle, how do I pivot data into multiple columns?

Use the ROW_NUMBER() analytic function to give each SITE_ID_ALT a column number for each SITE_ID and then you can PIVOT on that:

Query:

INSERT INTO site_id_cd_result ( site_id, site_id_alt_01, site_id_alt_02, site_id_alt_03 )
SELECT site_id,
       site_id_alt_01,
       site_id_alt_02,
       site_id_alt_03
FROM   (
  SELECT t.*,
         ROW_NUMBER() OVER ( PARTITION BY site_id ORDER BY ROWNUM ) AS rn
  FROM   site_id_cd_test t
  -- WHERE site_id <> site_id_alt    -- If you don't want the matching value
)
PIVOT ( MAX( site_id_alt ) FOR rn IN (
  1 AS site_id_alt_01,
  2 AS site_id_alt_02,
  3 AS site_id_alt_03
) )

Result:

SELECT * FROM site_id_cd_result;

SITE_ID | SITE_ID_ALT_01 | SITE_ID_ALT_02 | SITE_ID_ALT_03
:------ | :------------- | :------------- | :-------------
1A1-071 | 1A1-071        | 1A1-071O       | 030256        
1A1-072 | 04268383       | null           | null          

db<>fiddle here

PIVOT Oracle - transform multiple row data to single row with multiple columns, no aggregate data

You aren't doing anything with the description, which also varies with the tag. It isn't aggregated so it in the implicit 'group by', so you get separate rows in the result set.

You can either capture that too with another (dummy) aggregate:

select * from (
  select * from TEST2 where tag in ('LN', 'SN')
)
PIVOT
(
  max(value) as value, max(description) as description
  for tag in ('LN' as ln, 'SN' as sn)
)
order by category, subcat, item, "Date";

Date      SUBCAT CATEGOR IT LN_VALUE          LN_DESCRIPTION  SN_VALUE          SN_DESCRIPTION
--------- ------ ------- -- ----------------- --------------- ----------------- ---------------
24-OCT-13 290223 1219576 25 1105618           Lot Number      3x12mm            Serial Number  
24-OCT-13 290223 1219576 28 1303757           Lot Number                                       
18-JUN-15 354506 1219576 4  1403114           Lot Number                                       
18-JUN-15 354506 1219576 9  7777777777        Lot Number      9.999999999999E12 Serial Number  

Or more likely exclude it from the intermediate result set if you don't want it, by specify the columns you do want instead of using *:

select * from (
  select category, subcat, item, "Date", tag, value
  from TEST2 where tag in ('LN', 'SN')
)
PIVOT
(
  max(value) for tag in ('LN' as ln, 'SN' as sn)
)
order by category, subcat, item, "Date";

CATEGOR SUBCAT IT Date      LN                SN              
------- ------ -- --------- ----------------- -----------------
1219576 290223 25 24-OCT-13 1105618           3x12mm           
1219576 290223 28 24-OCT-13 1303757                            
1219576 354506 4  18-JUN-15 1403114                            
1219576 354506 9  18-JUN-15 7777777777        9.999999999999E12

Most efficient way to pivot multiple groups over multiple columns using Oracle SQL?

I would suggest aggregation:

select name,
       max(case when meal = 'Lunch' then food end) as lunch_food,
       max(case when meal = 'Lunch' then drink end) as lunch_drink,
       max(case when meal = 'Dinner' then food end) as dinner_food,
       max(case when meal = 'Dinner' then drink end) as dinner_drink
from example
group by name;

However, if you have a large table, you might compare that to:

select name, l.food, l.drink, d.food, d.drink
from (select e.*
      from example e 
      where meal = 'Lunch'
     ) l full join
     (select e.*
      from dinner e 
      where meal = 'Dinner'
     ) d
     using (name);

Oracle has efficient mechanisms for aggregation. It is hard to say off-hand which will be faster, so you should try on your data.

Oracle Pivot Based on Multiple Columns

Try:

select *
from
(
  select ISSUEID,ANSWER, ANSWERCOMMENT,QUESTION ,
         rownum rn
  from issue_survey
  WHERE ISSUEID = 6877
) d
pivot
(
  max(QUESTION) as question, max(Answer) as answer,
  max( ANSWERCOMMENT ) as ANSWERCOMMENT
  for rn  in ( 1 ,2 , 3 )
) piv;

Demo: http://www.sqlfiddle.com/#!4/e5aba7/6

| ISSUEID |        1_QUESTION | 1_ANSWER | 1_ANSWERCOMMENT |   2_QUESTION | 2_ANSWER | 2_ANSWERCOMMENT |      3_QUESTION | 3_ANSWER | 3_ANSWERCOMMENT |
|---------|-------------------|----------|-----------------|--------------|----------|-----------------|-----------------|----------|-----------------|
|    6877 | Do you wanna wait |      YES |           TEST1 | How about it | Its okay |           TEST2 | Sample question |   (null) |           TEST3 

---

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