having-clause Questions
2
For what would be this query in SQL (to find duplicates):
SELECT userId, name FROM col GROUP BY userId, name HAVING COUNT(*)>1
I performed this simple query in MongoDB:
res = db.col.group({k...
Beyer asked 5/4, 2011 at 10:10
1
Solved
My understanding as per standard practice is that HAVING is to be used along with GROUP BY for filtering conditions, while WHERE is supposed to be used for general row-wise filtering conditions.
Ho...
Neuroglia asked 17/12, 2020 at 19:40
4
Solved
Have a products table with item_id and color_id. I'm trying to get the color_id with the most non-null instances.
This fails:
SELECT color_id
FROM products
WHERE item_id=1234
GROUP BY item...
Susysuter asked 10/1, 2013 at 1:57
12
Solved
I have table like this
Table1
ID | Val | Val2 |
606541 |3175031503131004|3175032612900004|
606542 |3175031503131004|3175032612900004|
677315 |3175031503131004|3175032612980004|
222222 |11111111111...
Hegelianism asked 6/7, 2020 at 22:36
5
Solved
I am having trouble figuring out a way around Oracle's lack of support for the HAVING EVERY clause.
I have two tables, Production and Movie, with the following schema:
Production (pid, mid)
Movie...
Goldthread asked 21/2, 2013 at 21:13
5
Solved
I need to use an alias in the WHERE clause, but It keeps telling me that its an unknown column. Is there any way to get around this issue? I need to select records that have a rating higher than x....
Abbe asked 14/10, 2008 at 6:49
3
For the life of me I can not seem to get this to work.
Assume our entity is an managed object with a status field and an order field.
How would I go about getting all orderedEntries having more t...
Explicate asked 7/11, 2012 at 12:47
7
Solved
Why do you need to place columns you create yourself (for example select 1 as "number") after HAVING and not WHERE in MySQL?
And are there any downsides instead of doing WHERE 1 (writing the whole...
Oof asked 25/5, 2010 at 13:57
4
Solved
I need to create a query and I need COUNT(*) and HAVING COUNT(*) = x.
I'm using a work around that uses the CustomProjection class, that I downloaded somewhere.
This is the SQL that I try to achi...
Voyeur asked 22/12, 2011 at 15:2
1
Solved
I need to find in sakila database the longest rental period of a movie.
I have tried this:
SELECT DISTINCT
customer.first_name
FROM
rental,
customer
WHERE
rental.customer_id = customer.custo...
Schmo asked 19/3, 2016 at 18:57
2
Solved
We able to use HAVING clause in SQL-query to filtrate groups of row. When we use GROUP BY clause it work directly in this way.
But, let's look to this query:
select 1 where 1!=1 having count(*)=0...
Scram asked 30/10, 2015 at 7:40
3
Solved
I have a question which looks easy but I can't figure it out.
I have the following:
Name Zipcode
ER 5354
OL 1234
AS 1234
BH 3453
BH 3453
HZ 1234
I want to find those rows where the ID does...
Berliner asked 29/9, 2014 at 14:3
4
Solved
I have the following table
CREATE TABLE Test
(`Id` int, `value` varchar(20), `adate` varchar(20))
;
INSERT INTO Test
(`Id`, `value`, `adate`)
VALUES
(1, 100, '2014-01-01'),
(1, 200, '2014-01-...
Sneeze asked 10/6, 2014 at 11:40
4
Solved
I know this is much discussed, but none of my research could convince me the difference between 'where' and 'having' clauses in MySQL. From what I understand we can achieve everything that ca...
Prepossession asked 26/2, 2013 at 13:29
2
Solved
I have three tables:
author (columns: aut_id, aut_name)
book (columns: book_id, book_title)
authorbook (linking table, columns: aut_id, book_id)
Each author can be associated with one or more bo...
Sojourn asked 11/12, 2012 at 11:20
6
Solved
The following two queries yield the exact same result:
select country, count(organization) as N
from ismember
group by country
having N > 50;
select * from (
select country, count(organizatio...
Malanie asked 25/8, 2012 at 10:19
1
Solved
If I create an alias in the select clause then I cannot use it in the where clause because according to the order of execution of sql queries where comes before select.
But I can create an alias i...
Rightist asked 23/8, 2012 at 14:0
3
Solved
The question is this..
Table is this..
+--------------------------+---------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+--------------------------+-...
Marlea asked 27/5, 2012 at 15:42
4
Possible Duplicate:
SQL: What's the difference between HAVING and WHERE?
I have seen various discussions on WHERE and HAVING. I still have a question: is HAVING used only when con...
Drily asked 15/6, 2011 at 15:28
4
I have a few queries get the ID numbers of rows that will be deleted in the future.
The row numbers are put into a string and placed in the query below (where you see "2").
I want the results to i...
Originative asked 9/3, 2011 at 10:10
4
Solved
suppose I have this table
id | cash
1 200
2 301
3 101
4 700
and I want to return the first row in which the sum of all the previous cash is greater than a certain value:
So for instance, if I...
Cordle asked 19/7, 2010 at 19:40
1
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