I have the following query which returns the following error:
An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or a select list, and the column being aggregated is an outer reference.
SELECT Part from Parts Where count(Part) > 1
How could i rewrite it to return the part that appears more than once.
You need to use a GROUP BY and HAVING clause like this:
SELECT part
FROM Parts
GROUP BY part
HAVING COUNT(*) > 1
A perfect opportunity for the rarely used HAVING clause:
SELECT Part, Count(Part) as PartCount
FROM Parts
GROUP BY Part
HAVING Count(Parts) > 1
try this:
select part from parts group by part having count(part) > 1
Related
I'm trying to execute this with pyspark:
query = "SELECT *\
FROM transaction\
INNER JOIN factures\
ON transaction.t_num = factures.f_trx\
WHERE transaction.t_num != ''\
GROUP BY transaction.t_num"
result = sqlContext.sql(query)
Spark gives an error :
u"expression transaction.t_aut is neither present in the group by, nor is it an aggregate function. Add to group by or wrap in first() (or first_value) if you don't care which value you get.;
You forgot to add list of columns in group by statement. As you are selecting all columns in select statement.
It's saying that there is column named transaction.t_aut that you have projected in your select statement when you used select * that is not being used in your group by.
Solution is to either replace select * with the columns that are in your group by in your case transaction.t_num or add transaction.t_aut to your group by
SELECT
Product_Line_ID=2 OR Product_Line_ID=3,
COUNT(Product_Finish), MIN(Standard_Price)
FROM Product_T
WHERE Product_Finish
GROUP BY Standard_Price
HAVING AVG(Standard_Price) <700
ORDER BY Product_FInish;
I keep getting this error: Your query does not include the specified expression 'Product_Line_ID=2 OR Product_Line_ID=3' as part of an aggregate function. Can anyone help me with this? Not sure how to select product line id that is 2 or 3.
What is confusing about the error message? Product_Line_ID=2 OR Product_Line_ID=3 is not valid SQL.
Your query basically makes no sense. You have boolean conditions in the SELECT, you have a WHERE clause with a column name and no conditions, you are ordering by the column you are counting.
I can guess that you intend something like this:
SELECT Product_Line_ID, COUNT(Product_Finish), MIN(Standard_Price)
FROM Product_T
WHERE Product_Line_ID IN (2, 3)
GROUP BY Product_Line_ID
HAVING AVG(Standard_Price) < 700
ORDER BY COUNT(Product_Finish);
What is the problem in this please?
select inst.id
, inst.type as "TypeOfInstall"
, count(inst.id) as "NoOfInstall"
from dm_bsl_ho.installment inst
group by inst.type
You're not allowed to use single function with group function. Like mixing count with single row function.
You should include the group by function:
select inst.type as "TypeOfInstall"
, count(inst.id) as "NoOfInstall"
from dm_bsl_ho.installment inst
GROUP BY inst.type;
When you do a GROUP BY in most RDBMSs, your selection is limited to the following two things:
Columns mentioned in the GROUP BY - in your case, that's inst.type
Aggregate functions - for example, count(inst.id)
However, the inst.id at the top is neither one of these. You need to remove it for the statement to work:
SELECT
type as "TypeOfInstall"
, COUNT(id) as "NoOfInstall"
FROM dm_bsl_ho.installment
GROUP BY type
I was having a problem getting mulitple sums from multiple tables. Short story, my answer was solved in the "sql sum data from multiple tables" thread on this site. But where it came up short, is that now I'd like to only show sums that are greater than a certain amount. So while I have sub-selects in my select, I think I need to use a HAVING clause to filter the summed amounts that are too low.
Example, using the code specified in the link above (more specifically the answer that the owner has chosen as correct), I would only like to see a query result if SUM(AP2.Value) > 1500. Any thoughts?
If you need to filter on the results of ANY aggregate function, you MUST use a HAVING clause. WHERE is applied at the row level as the DB scans the tables for matching things. HAVING is applied basically immediately before the result set is sent out to the client. At the time WHERE operates, the aggregate function results are not (and cannot) be available, so you have to use a HAVING clause, which is applied after the main query is complete and all aggregate results are available.
So... long story short, yes, you'll need to do
SELECT ...
FROM ...
WHERE ...
HAVING (SUM_AP > 1500)
Note that you can use column aliases in the having clause. In technical terms, having on a query as above works basically exactly the same as wrapping the initial query in another query and applying another WHERE clause on the wrapper:
SELECT *
FROM (
SELECT ...
) AS child
WHERE (SUM_AP > 1500)
You could wrap that query as a subselect and then specify your criteria in the WHERE clause:
SELECT
PROJECT,
SUM_AP,
SUM_INV
FROM (
SELECT
AP1.[PROJECT],
(SELECT SUM(AP2.Value) FROM AP AS AP2 WHERE AP2.PROJECT = AP1.PROJECT) AS SUM_AP,
(SELECT SUM(INV2.Value) FROM INV AS INV2 WHERE INV2.PROJECT = AP1.PROJECT) AS SUM_INV
FROM AP AS AP1
INNER JOIN INV AS INV1 ON
AP1.[PROJECT] = INV1.[PROJECT]
WHERE
AP1.[PROJECT] = 'XXXXX'
GROUP BY
AP1.[PROJECT]
) SQ
WHERE
SQ.SUM_AP > 1500
I have the below query. The problem is the last column productdesc is returning two records and the query fails because of distinct. Now i need to add one more column in where clause of the select query so that it returns one record. The issue is that the column i need
to add should not be a part of group by clause.
SELECT product_billing_id,
billing_ele,
SUM(round(summary_net_amt_excl_gst/100)) gross,
(SELECT DISTINCT description
FROM RES.tariff_nt
WHERE product_billing_id = aa.product_billing_id
AND billing_ele = aa.billing_ele) productdescr
FROM bil.bill_sum aa
WHERE file_id = 38613 --1=1
AND line_type = 'D'
AND (product_billing_id, billing_ele) IN (SELECT DISTINCT
product_billing_id,
billing_ele
FROM bil.bill_l2 )
AND trans_type_desc <> 'Change'
GROUP BY product_billing_id, billing_ele
I want to modify the select statement to the below way by adding a new filter to the where clause so that it returns one record .
(SELECT DISTINCT description
FROM RRES.tariff_nt
WHERE product_billing_id = aa.product_billing_id
AND billing_ele = aa.billing_ele
AND (rate_structure_start_date <= TO_DATE(aa.p_effective_date,'yyyymmdd')
AND rate_structure_end_date > TO_DATE(aa.p_effective_date,'yyyymmdd'))
) productdescr
The aa.p_effective_date should not be a part of GROUP BY clause. How can I do it? Oracle is the Database.
So there are multiple RES.tariff records for a given product_billing_id/billing_ele, differentiated by the start/end dates
You want the description for the record that encompasses the 'p_effective_date' from bil.bill_sum. The kicker is that you can't (or don't want to) include that in the group by. That suggests you've got multiple rows in bil.bill_sum with different effective dates.
The issue is what do you want to happen if you are summarising up those multiple rows with different dates. Which of those dates do you want to use as the one to get the description.
If it doesn't matter, simply use MIN(aa.p_effective_date), or MAX.
Have you looked into the Oracle analytical functions. This is good link Analytical Functions by Example