I would like to join my two tables on [Group] and [YearMonth] Dates. Where [YRMO_NB] from Table 2 falls between [ENR_START] AND [ENR_END] from Table 1 then repeat the value of column [PHASE] for each related row, just like the second picture last column = [PHASE] and leaves unmatched rows blank.
I did this which only gives me exact matches:
ON A.GROUP = PHASE.GROUP
AND A.YRMO_NB = PHASE.ENR_START
Table 1
Table 2
Is there an easy way to do this ?
Thank You!
I figured it out
ON A.GROUP = PHASE.GROUP
AND A.YRMO_NB >= PHASE.ENR_START
and A.YRMO_NB <= PHASE.ENR_END
Related
I am trying to write a SQL query where the results would show the first value (ID) per user per day for the last year.
I tried using the query below and am able to get results for one day but when I try to change the time range to > 2021-06-01, it does not give me the results I expect.
select * from table
where value in
(
SELECT min(value)
FROM table
WHERE valueid = x
group by user
) and Time = '2022-05-30' and value is not null
I have been trying to change all the values in a column. When I do it turns out to take my table and drop all the rows that match my criteria in the where clause.
Example
|_Month_|_Cost_|_Title_|
|___2___|_15.99|_hello_|
|___2___|_32.87|_John__|
|___2___|_32.87|_Neat__|
|___3___|_32.87|_Kelps_|
|___4___|_32.87|_Gulp__|
|___5___|_32.87|_Tried_|
I run this Query
UPDATE tableName SET Month = 'FEB' WHERE Month = 2;
The Change:
|_Month_|_Cost_|_Title_|
|__FEB__|_32.87|_Neat__|
|___3___|_32.87|_Kelps_|
|___4___|_32.87|_Gulp__|
|___5___|_32.87|_Tried_|
What I need:
|_Month_|_Cost_|_Title_|
|__FEB__|_15.99|_hello_|
|__FEB__|_32.87|_John__|
|__FEB__|_32.87|_Neat__|
|___3___|_32.87|_Kelps_|
|___4___|_32.87|_Gulp__|
|___5___|_32.87|_Tried_|
Where am I going wrong?
I have also tried to get the date changed from a timestamp with
SELECT TO_DATE(payment_timestamp, 'Mon") payment_month
from tablename;
but PostgreSQL doesn't recognize the TO_DATE()?? Can someone tell me why?
I have a portal on my "Clients" table. The related table contains the results of surveys that are updated over time. For each combination of client and category (a field in the related table), I only want the portal to display the most recently collected row.
Here is a link to a trivial example that illustrates the issue I'm trying to address. I have two tables in this example (Related on ClientID):
Clients
Table 1 Get Summary Method
The Table 1 Get Summary Method table looks like this:
Where:
MaxDate is a summary field = Maximum of Date
MaxDateGroup is a calculated field = GetSummary ( MaxDate ;
ClientIDCategory )
ShowInPortal = If ( Date = MaxDateGroup ; 1 ; 0 )
The table is sorted on ClientIDCategory
Issue 1 that I'm stumped on: .
ShowInPortal should equal 1 in row 3 (PKTable01 = 5), row 4 (PKTable01 = 6), and row 6 (PKTable01 = 4) in the table above. I'm not sure why FM is interpreting 1Red and 1Blue as the same category, or perhaps I'm just misunderstanding what the GetSummary function does.
The Clients table looks like this:
Where:
The portal records are sorted on ClientIDCategory
Issue 2 that I'm stumped on:
I only want rows with a ShowInPortal value equal to 1 should appear in the portal. I tried creating a portal filter with the following formula: Table 1 Get Summary Method::ShowInPortal = 1. However, using that filter removes all row from the portal.
Any help is greatly appreciated.
One solution is to use ExecuteSQL to grab the Max Date. This removes the need for Summary functions and sorts, and works as expected. Propose to return it as number to avoid any issues with date formats.
GetAsTimestamp (
ExecuteSQL (
"SELECT DISTINCT COALESCE(MaxDate,'')
FROM Survey
WHERE ClientIDCategory = ? "
; "" ; "";ClientIDCategory )
)
Also, you need to change the ShowInPortal field to an unstored calc field with:
If ( GetAsNumber(Date) = MaxDateGroupSQL ; 1 ; 0 )
Then filter the portal on this field.
I can send you the sample file if you want.
I have data sample such as below :
How can PostgreSQL eliminate the duplicate row by check column1 and column2 at different row ? I just doing a normal comparison but still unlucky at this time. Hope someone may share the idea.
SELECT d1.*
FROM distance d1
WHERE NOT EXISTS (SELECT 1
FROM distance d2
WHERE d1."from" = d2."to"
AND d1."to" = d2."from"
AND d2."from" < d2."to"
);
If there is a “duplicate”, this query will only pick the row where "from" < "to".
id datetime new_column datetime_rankx
1 12.01.2015 18:10:10 12.01.2015 18:10:10 1
2 03.12.2014 14:44:57 03.12.2014 14:44:57 1
2 21.11.2015 11:11:11 03.12.2014 14:44:57 2
3 01.01.2011 12:12:12 01.01.2011 12:12:12 1
3 02.02.2012 13:13:13 01.01.2011 12:12:12 2
3 03.03.2013 14:14:14 01.01.2011 12:12:12 3
I want to make new column, which will have minimum datetime value for each row in group by id.
How could I do it in Power BI desktop using DAX query?
Use this expression:
NewColumn =
CALCULATE(
MIN(
Table[datetime]),
FILTER(Table,Table[id]=EARLIER(Table[id])
)
)
In Power BI using a table with your data it will produce this:
UPDATE: Explanation and EARLIER function usage.
Basically, EARLIER function will give you access to values of different row context.
When you use CALCULATE function it creates a row context of the whole table, theoretically it iterates over every table row. The same happens when you use FILTER function it will iterate on the whole table and evaluate every row against the filter condition.
So far we have two row contexts, the row context created by CALCULATE and the row context created by FILTER. Note FILTER use the EARLIER to get access to the CALCULATE's row context. Having said that, in our case for every row in the outer (CALCULATE's row context) the FILTER returns a set of rows that correspond to the current id in the outer context.
If you have a programming background it could give you some sense. It is similar to a nested loop.
Hope this Python code points the main idea behind this:
outer_context = ['row1','row2','row3','row4']
inner_context = ['row1','row2','row3','row4']
for outer_row in outer_context:
for inner_row in inner_context:
if inner_row == outer_row: #this line is what the FILTER and EARLIER do
#Calculate the min datetime using the filtered rows
...
...
UPDATE 2: Adding a ranking column.
To get the desired rank you can use this expression:
RankColumn =
RANKX(
CALCULATETABLE(Table,ALLEXCEPT(Table,Table[id]))
,Table[datetime]
,Hoja1[datetime]
,1
)
This is the table with the rank column:
Let me know if this helps.