column-alias Questions
3
Solved
I am trying to do a cohort analysis and compare average number of rentals based on the renter's first rental year(= the year where a renter rented first time). Basically, I am asking the question: ...
Petronia asked 24/5, 2016 at 15:34
3
Solved
SELECT
CASE WHEN SUM(X.Count)*3600 is null THEN '0'
ELSE
SUM(X.Count)*3600
END AS PJZ,
X.Mass
FROM X
WHERE X.Mass > 2000
HAVING ((X.Mass / PJZ * 100) - 100) >= 10;
Getting: ERRO...
Diphyllous asked 22/9, 2011 at 7:23
6
Solved
I have a query like this:
SELECT
jobs.*,
(
CASE
WHEN lead_informations.state IS NOT NULL THEN lead_informations.state
ELSE 'NEW'
END
) AS lead_state
FROM
jobs
LEFT JOIN lead_informations...
Absorptance asked 13/7, 2010 at 20:41
2
Solved
I am trying to change the names of a DataFrame columns in scala. I am easily able to change the column names for direct fields but I'm facing difficulty while converting array struct columns....
Hardly asked 26/3, 2019 at 16:53
8
Solved
I understand that AS is used to create an alias. Therefore, it makes sense to have one long name aliased as a shorter one. However, I am seeing a SQL query NULL as ColumnName
What does this imply?
...
Yawning asked 28/6, 2013 at 17:10
3
Solved
SQL is having an issue with the WHERE clause of this script:
SELECT
ITEM_ID, ITEM_PRICE, DISCOUNT_AMOUNT, QUANTITY,
(ITEM_PRICE*QUANTITY) AS price_total,
(DISCOUNT_AMOUNT*QUANTITY) AS di...
Octant asked 2/3, 2015 at 3:10
5
I am having trouble using a calculated column in postgres. A similar code which works in SQL is given below, is it possible to recreate this in PostgreSQL?
select cost_1, quantity_1, cost_2, quant...
Sporting asked 12/1, 2012 at 18:23
2
Solved
I have a database called temp, with daily stock prices:
Ticker Date price
ABC 01/01/13 100.00
ABC 01/02/13 101.50
ABC 01/03/13 99.80
ABC 01/04/13 95.50
ABC 01/05/13 78.00
XYZ 01/01/13 11.50
...
Bribery asked 17/2, 2018 at 5:30
4
Solved
Can I modify the next to use the column aliases avg_time and cnt in an expression ROUND(avg_time * cnt, 2)?
SELECT
COALESCE(ROUND(stddev_samp(time), 2), 0) as stddev_time,
MAX(time) as max_tim...
Corot asked 22/1, 2016 at 21:3
0
Consider the following query:
select
corpus_date as alias
,lead(word, 1) over (partition by corpus order by word_count desc) lead
,max(word_count) over (partition by corpus) max_word_count
fro...
Gallegos asked 1/10, 2015 at 12:45
2
Development Environment Reference:
Fedora FC18
Tomcat Server 7.0.39 (localhost config)
Eclipse Juno Release 2
Mysql-connecor-java Ver. 5.1.26 (jar)
Mysql-server Ver. 5.5.32 (jar)
The following s...
Oberland asked 11/9, 2013 at 0:20
1
Solved
I have 2 tables in my database which I need to join.
1 table is the artikelen table and the other one is the collecties table. I currently have.
$this->db->select('*');
$this->db->...
Memphian asked 9/4, 2014 at 17:34
1
What i am trying to achieve is in my database i have a table named channel
i am using laravel's eloquent class to access these the properties from the table
The problem that i am facing is that
th...
Overword asked 18/6, 2013 at 17:6
2
Solved
So, I've got a query that looks something like this:
SELECT id,
DATE_FORMAT(CONVERT_TZ(callTime,'+0:00','-7:00'),'%b %d %Y') as callDate,
DATE_FORMAT(CONVERT_TZ(callTime,'+0:00','-7:00'),'%H:%...
Energetic asked 26/5, 2010 at 2:19
2
Solved
Are there any restrictions, in terms of length, ability to include non-ASCII characters, etc. on the name of a Postgres column alias? And have there been any changes to such restrictions from versi...
Margetts asked 11/3, 2011 at 19:6
1
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