Why is below an invalid sql statement in mysql. It works perfectly in oracle.
SELECT originalAmount,fees,id FROM
(SELECT originalAmount,fees,id, ROW_NUMBER() OVER (PARTITION BY transaction_number ORDER BY eventdate ASC) RANK FROM kir_records where customerid= 1704)
WHERE RANK = 1;
I immediately get a syntax error as soon as paste this in mysql workbench.
Error:
Select is invalid at this position. Expecting '(' at first select.
Is there a workaround to make this work ?
try using this query.
SELECT originalAmount,fees,id FROM
((SELECT originalAmount,fees,id, ROW_NUMBER() OVER (PARTITION BY transaction_number ORDER BY eventdate ASC) RANK FROM kir_records where customerid= 1704))
WHERE RANK = 1;
Look like RANK is a reserved word in MySql. Used backquotes (``) around RANK and it worked as expected. One other thing to take care about is that every derived table (AKA sub-query) must indeed have an alias. Dervied Table alias
Here is the query which worked for me :
SELECT originalAmount,fees,id FROM
(SELECT originalAmount,fees,id, ROW_NUMBER() OVER (PARTITION BY transaction_number ORDER BY eventdate ASC) `RANK` FROM kir_records where customerid= 1704) AS SomeAlias
WHERE `RANK` = 1;
Related
My requirement is to get the recent record grouped by columns c1,c2.I have 50 columns in my source, using query i can apply rownumber() over partition by c1,c2 order by record_time desc, and pick the record where rownumber=1. In short, my oracle query would be:
select c1,c2,....,c50
from (select c1,c2,....,c50,
row_number() over (partition by c1,c2 order by record_time desc ) rn
from table)
where rn = 1;
How can I achieve this using ODI mapping? Please suggest.
Thanks
You have not mentioned the version of ODI you are using, assuming you are using ODI 11g. You can create a yellow interface and create a column for rownum with expression as below
row_number() over (partition by c1,c2 order by record_time desc)
Now use this yellow interface as source in your interface and apply filter on rownum column as below
rownum = 1
While using this you will have to make sure your KM is not adding group by function, else it'll end up in error.
Please help me with next problem:
And the result should be:
filtered by iban_code distinct
You can use row_number analytical function.
Select * from
(Select t.*,
Row_number()
over (partition by per_id, iban_code
order by main_bank_account desc) as rn
From your_table t)
Where rn=1;
Cheers!!
Same query running in Db2 , but in oracle it's giving error.
Please help. thanks in advance.
delete from (SELECT
EMP_ID,
SAL,
ROW_NUMBER() OVER (PARTITION BY EMP_ID ORDER BY SAL DESC) As RN
FROM FPM.FACT_PL_BS
WHERE MEASUREMENT_PERIOD_ID=20170811
AND SCENARIO_ID=1) A where RN>1}
Check documentation Notes on Updatable Views:
The view must not contain any of the following constructs:
A set operator
A DISTINCT operator
An aggregate or analytic function
A GROUP BY, ORDER BY, MODEL, CONNECT BY, or START WITH clause
A collection expression in a SELECT list
A subquery in a SELECT list
A subquery designated WITH READ ONLY
Joins, with some exceptions, as documented in Oracle Database Administrator's Guide
ROW_NUMBER is an Analytic Function, so update is not permitted.
I think this one should work (not tested):
delete from FPM.FACT_PL_BS
WHERE ROWID =ANY
(SELECT ROW_ID
FROM
(SELECT ROWID as ROW_ID,
EMP_ID,
SAL,
ROW_NUMBER() OVER (PARTITION BY EMP_ID ORDER BY SAL DESC) As RN
FROM FPM.FACT_PL_BS
WHERE MEASUREMENT_PERIOD_ID=20170811
AND SCENARIO_ID=1)
WHERE RN > 1;
or maybe
delete from FPM.FACT_PL_BS
WHERE MEASUREMENT_PERIOD_ID=20170811
AND SCENARIO_ID=1
AND ROWID <>ALL
(select MAX(ROWID) KEEP (DENSE_RANK FIRST ORDER BY SAL) OVER (PARTITION BY EMP_ID)
FROM FPM.FACT_PL_BS)
Hello I need a formula in column ‘C’ which calculates/adds the amount of B Column based on the column A ID. If there are several amounts in same ID it should add the total amount and would show the result in column ‘C’ as a single row.
the output can be obtained from Oracle SQL query or an Excel formula.your help would be appreciated.
You can get the same output from Oracle itself, using analytical functions like below.
SUM() OVER(PARTITION BY ... ) -> This actually do the cumulative sum
WITH MYTABLE(ID,AMT) AS
(SELECT '2UF2', '500' FROM DUAL
UNION ALL
SELECT '2TC6', '300' FROM DUAL
UNION ALL
SELECT '2TC6', '200' FROM DUAL
UNION ALL
SELECT '2TC6', '800' FROM DUAL
)
SELECT ID,
AMT,
CASE ROW_NUMBER() OVER(PARTITION BY ID ORDER BY NULL)
WHEN 1
THEN SUM(AMT) OVER(PARTITION BY ID ORDER BY NULL)
END AS FORMULA
FROM MYTABLE
ORDER BY ID, FORMULA NULLS LAST;
SQL Fiddle Demo
You can use rollup in oracle
Select id,amt,sum (amt) nullFrom table nullGroup by rollup (id,amt)
For more details see below link
https://oracle-base.com/articles/misc/rollup-cube-grouping-functions-and-grouping-sets
In SQL you need an aggregation function, in this case sum, and a group by clause. The generic query should look like the following:
Select sum(b) from table group by a
I hope this helps.
I'm facing issue while using four level of nesting in a hive query. Below is the query which I'm executing -
SELECT *,
SUM(qtod.amount) OVER (PARTITION BY qtod.id, qtod.year_begin_date ORDER BY qtod.tran_date)
FROM (SELECT *,
SUM(mtod.amount) OVER (PARTITION BY mtod.id, mtod.quarter_begin_date ORDER BY mtod.tran_date)
FROM (SELECT *,
SUM(wtod.amount) OVER (PARTITION BY wtod.id, wtod.month_begin_date ORDER BY wtod.tran_date)
FROM (select id,
year_begin_date,
quarter_begin_date,
month_begin_date,
week_begin_date,
tran_date,
amount,
SUM(amount)
OVER (PARTITION BY id,week_begin_date ORDER BY tran_date) FROM table_name)wtod)mtod)qtod;
If I'm excluding fourth level nesting it is working fine, but while including it, getting below Error msg -
FAILED: SemanticException [Error 10007]: Ambiguous column reference
_c1 in qtod
To avoid nesting i have tried to do it in other way
SELECT * FROM
(SELECT id,year_begin_date,tran_date,amount,SUM(amount) OVER (PARTITION BY id,year_begin_date ORDER BY tran_date) FROM yeartodate)ytod
JOIN
(SELECT *, SUM(mtod.amount) OVER (PARTITION BY mtod.id, mtod.quarter_begin_date ORDER BY mtod.tran_date)
FROM (SELECT *, SUM(wtod.amount) OVER (PARTITION BY wtod.id, wtod.month_begin_date ORDER BY wtod.tran_date)
FROM (select id,
year_begin_date,
quarter_begin_date,
month_begin_date,
week_begin_date,
tran_date,
amount,
SUM(amount)
OVER (PARTITION BY id,week_begin_date ORDER BY tran_date) FROM table_name)wtod)mtod)qtod
ON qtod.id=ytod.id AND qtod.tran_date=ytod.tran_date;
Still getting same Error.
after searching on web i found it's an issue with hive itself according to JIRA raised for hive
As jira is fixed now and patch is available in hive 14, so i tried to run it on hive 14(HDP).
Still getting the same Error.
Please write your suggestion.....
Non-aliased function calls within a SELECT are mapped to column names _c1, _c2, etc. In this case you have a single non-aliased function call per SELECT, so they all create a column _c1.
The issue is that because you are doing a SELECT * from the next sub-query down and then appending another function call that maps to _c1 then you have the same column named twice, and hence an error around an ambiguous column reference.
The solution should be to alias all of your function calls so that they do not use the _c1 default name, like so:
SELECT * FROM
(SELECT id,year_begin_date,tran_date,amount,SUM(amount) AS ytod_amount_sum OVER (PARTITION BY id,year_begin_date ORDER BY tran_date) FROM yeartodate)ytod
JOIN
(SELECT *, SUM(mtod.amount) AS mtod_amount_sum OVER (PARTITION BY mtod.id, mtod.quarter_begin_date ORDER BY mtod.tran_date)
FROM (SELECT *, SUM(wtod.amount) AS wtod_amount_sum OVER (PARTITION BY wtod.id, wtod.month_begin_date ORDER BY wtod.tran_date)
FROM (select id,
year_begin_date,
quarter_begin_date,
month_begin_date,
week_begin_date,
tran_date,
amount,
SUM(amount) AS amount_sum
OVER (PARTITION BY id,week_begin_date ORDER BY tran_date) FROM table_name)wtod)mtod)qtod
ON qtod.id=ytod.id AND qtod.tran_date=ytod.tran_date;