outer-join Questions
3
Solved
I'm wondering if anyone's come across a neat solution to this problem. I'm trying to select data from a couple of tables, having the records match up row by row. I'm basically after a full outer jo...
Tomasatomasina asked 6/6, 2012 at 15:3
3
I have 2 series, bids and asks, indexed on time.
Some timestamps are duplicated, indicating a price was updated more than once, but the timestamp resolution was too large to capture the differenc...
Mcbroom asked 14/7, 2019 at 21:52
6
Solved
I am looking for a quick way to do 'not join' (i.e. keep rows that didn't merge, or inverse of inner join). The way I've been doing is to use data.table for X and Y, then set key. For example:
req...
Virgule asked 12/6, 2014 at 17:27
18
Solved
I have a list of people's ID and their first name, and a list of people's ID and their surname. Some people don't have a first name and some don't have a surname; I'd like to do a full outer join o...
Matchwood asked 30/3, 2011 at 17:41
2
Solved
How can I outer merge two data frames in place in pandas?
For example, assume we have these two data frames:
import pandas as pd
s1 = pd.DataFrame({
'time':[1234567000,1234567005,1234567009],
...
Liebig asked 5/7, 2017 at 23:22
3
Solved
In the data.table FAQ, the nomatch = NA parameter is said to be akin to an outer join. However, I haven't been able to get data.table to do a full outer join – only right outer joins.
For example:...
Ratal asked 2/3, 2013 at 4:34
2
Solved
In Oracle I have:
SELECT t2.Regkood, t2.naitatel, t2.naitafaks, t3.lahtiolekuaeg, t1.*
FROM table1 t1, table2 t2, table3 t3
WHERE t1.client = t2.client AND t1.client = t3.client(+) AND t1.client =...
Martyrology asked 12/6, 2012 at 10:3
28
Solved
Also, how do LEFT OUTER JOIN, RIGHT OUTER JOIN, and FULL OUTER JOIN fit in?
Inflame asked 1/9, 2008 at 22:36
6
Solved
I've been searching this over quite a bit, and I just can't see where I'm going wrong. I'm hoping someone can help me figure it out. I have two tables, one for all the Sales Orders (SO) for a part ...
Sumba asked 1/2, 2018 at 21:19
5
Solved
Table 1 2 columns: ID, Name
Table 2 2 columns: ID, Name
What is a query to show names from Table 1 that are not in table 2? So filtering out all the names in table 1 that are in table 2 gives the r...
Minestrone asked 28/10, 2010 at 16:16
7
Solved
I have the following SQL, which I am trying to translate to LINQ:
SELECT f.value
FROM period as p
LEFT OUTER JOIN facts AS f ON p.id = f.periodid AND f.otherid = 17
WHERE p.companyid = 100
I ha...
Mertiemerton asked 14/7, 2009 at 0:53
2
Solved
Hi I need to align some time series data with nearest timestamps, so I think pandas.merge_asof could be a good candidate. However, it does not have an option to set how='outer' like in the standard...
Synonymize asked 7/11, 2020 at 1:6
15
Solved
I want to do a full outer join in MySQL. Is this possible? Is a full outer join supported by MySQL?
Inappreciable asked 25/1, 2011 at 17:34
7
Solved
How can I get all products from customers1 and customers2 include their customer names?
customer1 table
cid name1
1 john
2 joe
customer2 table
cid name2
p1 sandy
p2 linda
product table
pid cid p...
Castellated asked 12/9, 2009 at 20:9
12
Solved
What is the difference between LEFT JOIN and LEFT OUTER JOIN?
Bohlen asked 2/1, 2009 at 8:30
3
Is it true that using INNER JOIN after a OUTER JOIN will essentially invalidate the effects of OUTER JOIN?
In other words, for a nested/multiple-JOIN SQL statement, should one always use INNER JOIN...
Ostensorium asked 11/3, 2019 at 1:53
3
Solved
Maybe a facepalm for you guys, but as a SQL query newbie, I'm having a syntax issue. Anyone know what's wrong?
SELECT * FROM company C
OUTER JOIN company_address A ON C.company_id = A.company_id
W...
Sectorial asked 18/9, 2012 at 8:35
7
Solved
I'm refactoring some sql at work, and stumbled on something I'm not sure how to explain. There are two queries I thought would result in the same result, but don't, and I'm not sure why.
The...
Zonate asked 11/9, 2018 at 8:56
3
Solved
How can I achieve Outer Apply in LINQ? I'm having a bit of a problem.
Here's the SQL Query I'm using.
SELECT u.masterID
,u.user
,h.created
FROM dbo.Users u
OUTER APPLY (SELECT TOP 1 * FROM User...
Shantelleshantha asked 10/6, 2010 at 12:39
8
Solved
I have two tables with similar column names and I need to return records from the left table which are not found in the right table? I have a primary key(column) which will help me to compare both ...
Fib asked 5/9, 2014 at 12:7
3
Solved
I know, join between two streams is not supported yet. But there's a way to do it anyway?
Or I need to wait for Spark 2.2.0?
Thank you
Rhiannonrhianon asked 20/4, 2017 at 7:23
5
Solved
I have two IQueryable collections having this kind of type
public class Property
{
public string Name {get; set;}
}
Collection 1, with the following Name values:
A
A
A
B
Collection ...
Tical asked 16/12, 2017 at 9:6
1
Solved
I've two dataframes in pandas as shown below. EmpID is a primary key in both dataframes.
df_first = pd.DataFrame([[1, 'A',1000], [2, 'B',np.NaN],[3,np.NaN,3000],[4, 'D',8000],[5, 'E',6000]], colum...
Rubric asked 27/11, 2017 at 6:16
3
Solved
I have two DataFrames that have the same column names with some matching data and some unique data.
I want to exclude the middle and only save what is unique to both DataFrames.
How would I conca...
Fraley asked 7/11, 2017 at 20:25
4
Solved
I am checking some old SQL Statements for the purpose of documenting them and probably enhancing them.
The DBMS is Oracle.
I did not understand a statement which read like this:
select ...
from a,b...
Kurtiskurtosis asked 26/10, 2010 at 4:51
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