I have a case driven query . Below is the simplest form
select Column 1 from mytable
Results :
Column 1
latinnametest
LatinManual
LatinAuto
Is it possible to show the aggregated data of column 1 data of all the resulted rows in another Column say column 5 in front of each row with comma separated ?
Expected :
Column 1 Column 2
latinnametest latinnametest,LatinManual,LatinAuto
LatinManual latinnametest,LatinManual,LatinAuto
LatinAuto latinnametest,LatinManual,LatinAuto
I have used array_agg and concat() but it aggregates the same row data in column 2 but not as expected to add all rows column data comma separated . Any help please.
Edit :
I have tried the solution mentioned below but I am getting repetitive data in the column . see the screenshot. I have hover the mouse over that last column and see the repetitive data . Any solution to this ?
[![enter image description here][1]][1]
You can use string_agg() as a window function:
select column_1,
string_agg(column_1, ',') over () as all_values
from the_table;
Edit, after the scope was changed:
If you need distinct values, use a derived table:
select column_1,
string_agg(column_1, ',') over () as all_values
from (
select distinct column_1
from the_table
) t;
Alternatively with a common table expression:
with vals as (
select string_agg(distinct column_1, ',') as all_values
from the_table
)
select t.column_1, v.all_values
from the_table t
cross join vals v
Related
Is it possible to build a select query that sums up value of a column and also get the fields from the column of the same table, and an example please . I am new to DB2 and still learning.
I tried using the below,
SELECT SUM(Column containing numbers)
,Column 2
FROM Table
but this gives me a SQL return code of -122
It's possible with the SUM olap function.
SELECT
SUM(C1) OVER () AS C1_SUM
, C2
FROM
(
SELECT 1, 'A' FROM SYSIBM.SYSDUMMY1
UNION ALL SELECT 2, 'B' FROM SYSIBM.SYSDUMMY1
) T (C1, C2)
C1_SUM
C2
3
B
3
A
fiddle
Problem statement: How to convert a row value, which has a dynamic array into column names in Hive.
Eg: table name: TAB1
Col1 Col2
{a,b,c}
{a,b,d,e}
{e,c,a,m,n}
Required output: I somehow need to split the row data dynamic array into column names based on the Col1 as the filter on TAB1.
The Final query needs to be something like below ( i know some sort of JOIN to TAB1 is required)
select 1,a,b,c from TAB2;
select 2,a,b,d,e from TAB2;
select 3,e,c,a,m,n from TAB2;
Try this -
SELECT CONCAT("SELECT ",concat_ws(',', t.*)," FROM TAB2;") FROM TAB1;
I'm trying to split up an arrayed column that was created using an array_agg. the following is severely cut down, original query is something like 210 lines
select
distinct on (visitor.id)
id,
array_agg(distinct item.code::text)
from
8xfullouter joins
where
exists(
select
distinct on(visitor.id)
item.code::text
from
3 full outer join that all appear in the first query
group by
visit.id,
item.code
order by
visit.id
)
I need to break the array_agg(distinct item.code::text) into multiple columns. I've tried split_part(array_agg(distinct item.code::text), ',', 1) but received the following
> [Err] ERROR: function split_part(character varying[], unknown,
> integer) does not exist LINE 159: split_part (array_agg(distinct
> "public".procedure_group_cpt_...
thanks!!!
Use an index of the array, e.g.:
select (array_agg(code::text))[1]
from (values ('code1'), ('code2')) as codes(code)
array_agg
-----------
code1
(1 row)
Alternatively, you can use string_agg() instead of array_agg(), e.g.:
select split_part(string_agg(code::text, ','), ',', 1)
from (values ('code1'), ('code2')) as codes(code)
split_part
------------
code1
(1 row)
I have a data in the field as " Date: 03-21-13 12/13/14/15 Date:04-21-13 39/12/34/14 Date:04-19-13 19/45/65/12 ".How to sort this data inside the field based on the recent Date.
It should Look like
Date:04-21-13 39/12/34/14
Date:04-19-13 19/45/65/12
Date: 03-21-13 12/13/14/15
Because you are storing it as text, you cannot correctly sort directly on the column (as you appear to have discovered). You will need to split the column, and then sort on that. Something like:
Declare #tvTable Table (
TextColumn varchar(max)
)
Insert #tvTable
Select '04-19-13 19/45/65/12'
Union All
Select '04-21-13 39/12/34/14'
Union All
Select '03-21-13 12/13/14/15'
Union All
Select '03-25-13 17/18/19/20'
Union All
Select '05-01-13 99/88/77/66'
Union All
Select '02-01-13 11/22/33/44'
Select t.TextColumn
From #tvTable t
Cross Apply dbo.fncDelimitedSplit8k(TextColumn, ' ') split
Where split.ItemNumber = 1
Order By Cast(split.Item As DateTime) Desc
The split function taken from Jeff Moden Tally OH!
having a sql e.g. something like the following resulting in some rows with one value.
I search a different sql than SELECT * FROM some_sql which results in one row with comma separated values.
WITH some_sql AS (
SELECT 1 FROM DUAL
UNION
SELECT 2 FROM DUAL
)
SELECT * FROM some_sql
this SQL results in the two rows with value 1 and 2.
I seach a SQl resulting in 1,2 without changing the code of 'some_sql'.
Consider http://halisway.blogspot.com/2006/08/oracle-groupconcat-updated-again.html
Sice you are on 11G you can use LISTAGG
WITH some_sql AS (
SELECT 1 x FROM DUAL
UNION
SELECT 2 x FROM DUAL
)
SELECT LISTAGG(x, ',') WITHIN GROUP(ORDER BY x) FROM some_sql