I've got a machine log available in an SQL table. I can do a bit in SQL, but I'm not good enough to process the following:
In the data column there are entries containing "RUNPGM: Recipe name" and "RUNBRKPGM: Recipe name"
What I want is a view containing 4 columns:
TimeStamp RUNPGM
TimeStamp RUNBRKPGM
Recipe Name
Time Difference in seconds
There is a bit of a catch:
Sometimes the machine logs an empty RUNBRKPGM that should be ignored
The RUNBRKPGM is sometimes logged with an error message. This entry should also be ignored.
It's always the RUNBRKPGM entry with just the recipe name that's the actual end of the recipe.
NOTE: I understand this is not a full/complete answer, but with info available in question as of now, I believe it at least helps give a starting point since this is too complicated (and formatted) to put in the comments:
If Recipe is everything in the DATA field except the 'RUNPGM = ' part you can do somethign similar to this:
SELECT
-- will give you a col for TimeStamp for records with RUNPGM
CASE WHEN DATA LIKE 'RUNPGM%' THEN TS ELSE '' END AS RUNPGM_TimeStamp,
-- will give you a col for TimeStamp for records with RUNBRKPGM
CASE WHEN DATA LIKE 'RUNBRKPGM%' THEN TS ELSE '' END AS RUNBRKPGM_TimeStamp,
-- will give you everything after the RUNPGM = (which I think is the recipe you are referring to)
CASE WHEN DATA LIKE 'RUNPGM%' THEN REPLACE(DATA, 'RUNPGM = ', '' AS RUNPGM_Recipe,
-- will give you everything after the RUNBRKPGM = (which I think is the recipe you are referring to)
CASE WHEN DATA LIKE 'RUNBRKPGM:%' THEN REPLACE(DATA, 'RUNBRKPGM = ', '' AS RUNPGM_Recipe
FROM TableName
Im not sure what columns you want to get the Time Difference on though so I dont have that column in here.
Then if you need to do additional logic/formatting on the columns once they are separated you can put the above in a sub select.
As a first swing, I'd try the following:
Create a view that uses string splitting to break the DATA column into a its parts (e.g. RunType and RecipeName)
Create a simple select that outputs the recipe name and tstamp where the runtype is RUNPGM.
Then add an OUTER APPLY:
Essentially, joining onto itself.
SELECT
t1.RecipeName,
t1.TimeStamp AS Start,
t2.TimeStamp AS Stop
--date func to get run time, pseudo DATEDIFF(xx,t1.TimeStamp, t2.TimeStamp) as RunTime
FROM newView t1
OUTER APPLY ( SELECT TOP ( 1 ) *
FROM newView x
WHERE x.RecipeName = t1.RecipeName
AND RunType = 'RUNBRKPGM'
ORDER BY ID DESC ) t2
WHERE t1.RunType = 'RUNPGM';
I've been struggling to build a query that calculate the sum of column called 'TIDAL_VOLUME' with respect to date value that's coming from another table.
Please see the content of the Table_1:
Please see the content of the Table_2:
Note: TIDAL_VOLUME might have NULL as well.
Now, the start time for O2_Device value 'Endotracheal tube' is '2013-08-06 08:10:05' for same HADM_ID and SUBJECT_ID. and end time is whenever new O2_Device value comes in. In this case which is 'Nasal cannula'. Which means start time for 'Endotracheal tube' is '2013-08-06 08:10:05' and end time is '2013-08-06 10:15:05' for HADM_ID = 1 and SUBJECT_ID = 100.
Using that start time and end time criteria, I have to look for TIDAL_VALUE in Table_2. In this example it's 700, 800. Ans for TIDAL_VOLUME is 1500.
Please see the resultant output look like this:
Thanks in advance.
If you can add End_Time to the first table, you can use BETWEEN when you join the tables.
SELECT t1.HADM_ID, t1.Subject_ID, t1.ChartTime, SUM(t2.tidal_volume) AS tidal_volume
FROM Table_1 AS t1
JOIN Table_2 AS t2
ON t1.HADM_ID = t2.HADM_ID
AND t1.Subject_ID = t2.Subject_ID
AND t2.ChartTime BETWEEN t1.ChartTime AND t1.End_Time
GROUP BY t1.HADM_ID, t1.Subject_ID, t1.ChartTime
I am trying to group rows in MySQL but end up with a wrong result.
My DB looks like this:
I'm using this query:
SELECT
r_id, va_id,va_klasse,va_periode,
1va_mer,1va_hjem,1va_mot,1va_bil,1va_fit,1va_hand,1va_med,1va_fra,
2va_mer,2va_hjem,2va_trae,2va_bil,2va_sty,2va_mus,2va_med,2va_fra,
3va_mer,3va_hjem,3va_mot,3va_bil,3va_pima,3va_nat,3va_med,3va_fra,
va_lock, va_update
FROM o6hxd_valgfag
WHERE va_klasse IN('7A','7B','7C','8A','8B','8C','9A','9B','9C')
GROUP BY va_id
ORDER BY va_klasse,va_name
This produces a wrong result, where one row is returned with only the first three numbers 123 and not the ones from row two and three.
What I would like is a result where the numbers 123, 321 and 132 are gathered in one line.
I can explain more detailed if this isn't sufficient.
If across those fields there should only be ever one value, you should really have them all in the same record and go about fixing it to insert and update the same record.
Ie I am aware that you database isn't designed correctly
However
To dig you out, you could give this a crack, I suppose.
SELECT
r_id, va_id,va_klasse,va_periode,
MAX(1va_mer),MAX(1va_hjem),MAX(1va_mot),MAX(1va_bil),MAX(1va_fit),MAX(1va_hand),MAX(1va_med),MAX(1va_fra),
MAX(2va_mer),MAX(2va_hjem),MAX(2va_trae),MAX(2va_bil),MAX(2va_sty),MAX(2va_mus),MAX(2va_med),MAX(2va_fra),
MAX(3va_mer),MAX(3va_hjem),MAX(3va_mot),MAX(3va_bil),MAX(3va_pima),MAX(3va_nat),MAX(3va_med),MAX(3va_fra),
va_lock, va_update
FROM o6hxd_valgfag
WHERE va_klasse IN('7A','7B','7C','8A','8B','8C','9A','9B','9C')
GROUP BY va_id
ORDER BY va_klasse,va_name
Your query will not work as intended. Think about this use-case:
what if for row1 (r_id =9), the fields 2va_sty, 2va_mus, 2va_med are not empty and has values?
In such case what should your desired output be? It certainly cannot be the numbers 123, 321 and 132 gathered in one line. Group by is usually used if you want to use aggregate functions executed against a certain field value, in your case va_id.
Not a solution to your problem but i think a better query would be like this (because of the not named columns in the group by clause https://dev.mysql.com/doc/refman/5.5/en/group-by-handling.html):
SELECT
aa.r_id, aa.va_id, aa.va_klasse, aa.va_periode,
aa.1va_mer, aa.1va_hjem, aa.1va_mot, aa.1va_bil, aa.1va_fit, aa.1va_hand, aa.1va_med, aa.1va_fra,
aa.2va_mer, aa.2va_hjem, aa.2va_trae, aa.2va_bil, aa.2va_sty,2va_mus, aa.2va_med, aa.2va_fra,
aa.3va_mer, aa.3va_hjem, aa.3va_mot, aa.3va_bil, aa.3va_pima, aa.3va_nat, aa.3va_med, aa.3va_fra,
aa.va_lock, aa.va_update
FROM o6hxd_valgfag AS aa
INNER JOIN (
SELECT va_id
FROM o6hxd_valgfag
GROUP BY va_id
) AS _aa
ON aa.va_id = _aa.va_id
WHERE aa.va_klasse IN ('7A','7B','7C','8A','8B','8C','9A','9B','9C')
ORDER BY aa.va_klasse, aa.va_name;
This is my first time creating a MySQL stored procedure and am stuck on getting the UPDATE piece to work correctly. The proc is performing an inner join, looking for matches on a domain name field. If there is a match, a column named inbound is getting updated with a value of 0. If there is not a match on the join, then I need inbound set to a value of 1.
When I run this, I am able to get the matches tagged with a 0, but the non-matches are not getting updated with a 1. I thought how I have the 'ELSE' part set up would take care of this- can anyone tell if I am missing something with the syntax?
CREATE PROCEDURE `sp_InboungTagging`()
BEGIN
update `tableA` a
inner join `TableD` d
on a.senderDomain = d.domainName
set inbound = CASE
when a.senderDomain = d.domainName then 0
ELSE 1
END
WHERE inbound is null;
END;|
DELIMITER ;
Thanks,
Ron
EDIT-
Thanks for your reply. I am looking for exact matches on a varchar field that has domain names in it- the master list of domains is in table D. If the record in TableA has a match in TableD, I want to tag that recored with a 0. If there is no match in TableD, then I would like to tag it with a 1. Let me know if that clears things up- thanks
Your JOIN condition is the same as your CASE condition. If you JOIN your two tables on:
a.senderDomain = d.domainName
Then there will be no values in the result set for which
a.senderDomain != d.domainName
so the ELSE clause of your CASE statement never fires.
Without knowing more about what you mean by "matches" and "non-matches," I can't really suggest a correction.
I'm trying to update one column of MySQL table with subquery that returns a date, and another subquery for the WHERE clause.
Here is it:
UPDATE wtk_recur_subs_temp
SET wtk_recur_date = (SELECT final_bb.date
FROM final_bb, wtk_recur_subs
WHERE final_bb.msisdn = wtk_recur_subs.wtk_recur_msisdn)
WHERE wtk_recur_subs_temp.wtk_recur_msisdn IN (select final_bb.msisdn
from final_bb)
The response from the MySQL engine is "Subquery returns more than 1 row".
Use:
UPDATE wtk_recur_subs_temp,
final_bb,
wtk_recur_subs
SET wtk_recur_subs_temp.wtk_recur_date = final_bb.date
WHERE final_bb.msisdn = wtk_recur_subs.wtk_recur_msisdn
AND wtk_recur_subs_temp.wtk_recur_msisdn = final_bb.msisdn
The error is because:
SET wtk_recur_date = (SELECT final_bb.date
FROM final_bb, wtk_recur_subs
WHERE final_bb.msisdn = wtk_recur_subs.wtk_recur_msisdn)
...the final_bb.date value is all the date values where the final_bb and wtk_recur_subs msisdn column values match.
This may come as an utter shock to you, but one of your subqueries is returning more than one row!
This isn't permitted in the circumstance you've set up. Each of those two subqueries must return one and only one row. Or no rows.
Perform each subquery on it's own and determine which one is returning more than one row. If they shouldn't return more than one row, your data may be wrong. If they should return more than one row, you'll either want to modify the data so they don't (as I assume you expect), or add a LIMIT clause. Or add an aggregate function (like MAX) outside the query to do something proper with the multiple rows being returned.