Need list of "ALL" document numbers (k002) with their the most recent maintenance date (lm01_s) and status_code. The code below finds last date from the entire table and any record with that date. This is not what I need. There is only one table. If I drop the status_code from the equation, this is easy.
SELECT k002, lm01_s, status_code
FROM stat_trans
WHERE (lm01_s = ANY (SELECT MAX(lm01_s) FROM stat_trans)) ORDER BY lm01_s;
I have also tried this ...
SELECT k002, lm01_s, advice_code
FROM romis_stat_trans
WHERE lm01_s IN (((SELECT Max(lm01_s) FROM romis_stat_trans GROUP BY k002)));
I have tried so many things that I forget what I have tried. Everything has been a dead end.
Use a subquery in the where clause to return only the records where lm01_s is equal to the max lm01_s. I found it's important to use a table alias or else Access will confuse the fields.
select k002,
lm01_s,
status_code
from stat_trans
where lm01_s=(select max(sc.lm01_s)
from stat_trans as sc
where sc.k002 = stat_trans.k002)
Related
This select statement takes a long time running, after my investigation I found that the problem un subquery, stored procedure, please I appreciate your help.
SELECT DISTINCT
COKE_CHQ_NUMBER,
COKE_PAY_SUPPLIER
FROM
apps.Q_COKE_AP_CHECKS_SIGN_STATUS_V
WHERE
plan_id = 40192
AND COKE_SIGNATURE__A = 'YES'
AND COKE_SIGNATURE__B = 'YES'
AND COKE_AUDIT = 'YES'
AND COKE_CHQ_NUMBER NOT IN (SELECT DISTINCT COKE_CHQ_NUMBER_DELIVER
FROM apps.Q_COKE_AP_CHECKS_DELIVERY_ST_V
WHERE UPPER(COKE_CHQ_NUMBER_DELIVER_STATUS) <> 'DELIVERED')
AND COKE_CHQ_NUMBER NOT IN (SELECT COKE_CHQ_NUMBER_DELIVER
FROM apps.Q_COKE_AP_CHECKS_DELIVERY_ST_V)
Well there are a few issues with your SELECT statement that you should address:
First let's look at this condition:
COKE_CHQ_NUMBER NOT IN (SELECT DISTINCT COKE_CHQ_NUMBER_DELIVER
FROM apps.Q_COKE_AP_CHECKS_DELIVERY_ST_V
WHERE UPPER(COKE_CHQ_NUMBER_DELIVER_STATUS) <> 'DELIVERED')
First you select DISTINCT cheque numbers with a not delivered status then you say you don't want this. Rather than saying I don't want non delivered it is much more readable to say I want delivered ones. However this is not really an issue but rather it would make your SELECT easier to read and understand.
Second let's look at your second cheque condition:
COKE_CHQ_NUMBER NOT IN (SELECT COKE_CHQ_NUMBER_DELIVER
FROM apps.Q_COKE_AP_CHECKS_DELIVERY_ST_V)
Here you want to exclude all cheques that have an entry in Q_COKE_AP_CHECKS_DELIVERY_ST_V. This makes your first DISTINCT condition redundant as whatever cheques numbers will bring back would be rejected by this second condition of yours. I do't know if Oracle SQL engine is clever enough to work out this redundancy but this could cause your slowness as SELECT distinct can take longer to run
In addition to this if you don't have them already I would recommend adding the following indexes:
CREATE INDEX index_1 ON q_coke_ap_checks_sign_status_v(coke_chq_number, coke_pay_supplier);
CREATE INDEX index_2 ON q_coke_ap_checks_sign_status_v(plan_id, coke_signature__a, coke_signature__b, coke_audit);
CREATE INDEX index_3 ON q_coke_ap_checks_delivery_st_v(coke_chq_number_deliver);
I called the index_1,2,3 for easy to read obviously not a good naming convention.
With this in place your select should be optimized to retrieve you your data in an acceptable performance. But of course it all depends on the size and the distribution of your data which is hard to control without performing specific data analysis.
looking to you code .. seems you have redundant where condition the second NOT IN implies the firts so you could avoid
you could also transform you NOT IN clause in a MINUS clause .. join the same query with INNER join of you not in subquery
and last be careful you have proper composite index on table
Q_COKE_AP_CHECKS_SIGN_STATUS_V
cols (plan_id,COKE_SIGNATURE__A , COKE_SIGNATURE__B, COKE_AUDIT, COKE_CHQ_NUMBER, COKE_PAY_SUPPLIER)
SELECT DISTINCT
COKE_CHQ_NUMBER,
COKE_PAY_SUPPLIER
FROM
apps.Q_COKE_AP_CHECKS_SIGN_STATUS_V
WHERE
plan_id = 40192
AND COKE_SIGNATURE__A = 'YES'
AND COKE_SIGNATURE__B = 'YES'
AND COKE_AUDIT = 'YES'
MINUS
SELECT DISTINCT
COKE_CHQ_NUMBER,
COKE_PAY_SUPPLIER
FROM apps.Q_COKE_AP_CHECKS_SIGN_STATUS_V
INNER JOIN (
SELECT COKE_CHQ_NUMBER_DELIVER
FROM apps.Q_COKE_AP_CHECKS_DELIVERY_ST_V
) T ON T.COKE_CHQ_NUMBER_DELIVER = apps.Q_COKE_AP_CHECKS_SIGN_STATUS_V
WHERE
plan_id = 40192
AND COKE_SIGNATURE__A = 'YES'
AND COKE_SIGNATURE__B = 'YES'
AND COKE_AUDIT = 'YES'
I got a simple thing to do.
Well, maybe not, but someone somewhere surely can help me out : P
I got a simple data structure that contains
expedition date
delivery date
transaction type
I would need to create a query which could
order the rows by a date specific to the transaction type.
(ie : using the expedition date for transaction of type "selling", and delivery date for transaction of type "purchasing")
I was wondering if there was a more efficient way to do this than
by fetching 2 times the same data with different clause where(while adding a column used to order them(tempDate)) and then using another select to encompass these 2 queries to which I would add the order clause on the tempDate.
--> the initial fetching I would do 2 times works on many tables(many, many, many joins)
Basically my current solution is :
Select * from
(
Select ...
date_exp as dateTemp;
from ...
where conditions* And dateRelatedCondition
UNION
Select ...
date_livraison as dateTemp;
from ...
Where conditions* And NOT(dateRelatedCondition)
) as comboSelect
Order By MIN(comboSelect.dateTemp)
OVER(PARTITION BY(REF_product)),
(REF_product),
comboSelect.dateTemp asc;
*
->Those conditions are the same in both inner Select query
Thank you for your time.
Without the UNION:
dateRelatedCondition should be removed from WHERE and put to the SELECT like:
CASE WHEN dateRelatedCondition THEN date_exp ELSE date_livraison END as dateTemp
Without the subquery:
in ORDER BY you need the same expression in the window function:
Order By MIN(CASE WHEN dateRelatedCondition THEN date_exp ELSE date_livraison END)
OVER(PARTITION BY(REF_product)),
(REF_product),
dateTemp asc
You mean like this?:
ORDER BY CASE
WHEN TransactionType = 'Selling' THEN ExpeditionDate
WHEN TransactionType = 'purchasing' THEN DeliveryDate
END
This is being run on sql for IBMI Series 7
I have a table which stores info about orders. Each row has an order number (ON), part number(PN), and sequence number(SEQ). Each ON will have multiple PN's linked to them and each part number has multiple SEQ Number. Each sequence number represents the order in which to do work on the part. Somewhere else in the system once the part is at a location and ready to be worked on it shows a flag. What I want to do is get a list of orders for a location that have not yet arrived but have been closed out on the previous location( Which means the part is on it's way).
I have a query listed below that I believe should work but I get the following error: "The column qualifier or table t undefined". Where is my issue at?
Select * From (SELECT M2ON as Order__Number , M2SEQ as Sequence__Number,
M2PN as Product__Number,ML2OQ as Order__Quantity
FROM M2P
WHERE M2pN in (select R1PN FROM R1P WHERE (RTWC = '7411') AND (R1SEQ = M2SEQ)
)
AND M2ON IN (SELECT M1ON FROM M1P WHERE ML1RCF = '')
ORDER BY ML2OSM ASC) as T
WHERE
T.Order__Number in (Select t3.m2on from (SELECT *
FROM(Select * from m2p
where m2on = t.Order__Number and m2pn = t.Product__Number
order by m2seq asc fetch first 2 rows only
)as t1 order by m2seq asc fetch first row only
) as t3 where t3.m2stat = 'C')
EDIT- Answer for anyone else with this issue
Clutton's Answer worked with slight modification so thank you to him for the fast response! I had to name my outer table and specify that in the subquery otherwise the as400 would kick back and tell me it couldn't find the columns. I also had to order by the sequence number descending so that I grabbed the highest record that was below the parameter(otherwise for example if my sequence number was 20 it could grab 5 even though 10 was available and should be shown first. Here is the subquery I now use. Please note the actual query names m2p as T1.
IFNULL((
SELECT
M2STAT
FROM
M2P as M2P_1
WHERE
M2ON = T1.M2ON
AND M2SEQ < T1.M2SEQ
AND M2PN IN (select R1PN FROM R1P WHERE (RTWC = #WC) AND (R1SEQ = T1.M2SEQ))
ORDER BY M2SEQ DESC
FETCH FIRST ROW ONLY
), 'NULL') as PRIOR_M2STAT
Just reading your question, it looks like something I do frequently to emulate RPG READPE op codes. Is the key to M2P Order/Seq? If so, here is a basic piece that may help you build out the rest of the query.
I am assuming that you are trying to get the prior record by key using SQL. In RPG this would be like doing a READPE on the key for a file with Order/Seq key.
Here is an example using a subquery to get the status field of the prior record.
SELECT
M2ON, M2PN, M2OQ, M2STAT,
IFNULL((
SELECT
M2STAT
FROM
M2P as M2P_1
WHERE
M2P_1.M2ON = M2ON
AND M2P_1.M2SEQ < M2SEQ
FETCH FIRST ROW ONLY
), '') as PRIOR_M2STAT
FROM
M2P
Note that this wraps the subquery in an IFNULL to handle the case where it is the first sequence number and no prior sequence exists.
Hope somebody can help me with this. I'm trying to pull a list of forthcoming titles (I work in publishing) via ODBC/ms query. I want (amongst other things) to show their internal status (approved, prepress etc.). The database stores the change dates for the status'. I seem to be getting one line per status per title. So if the title has changed status 6 times, I will get 6 lines. But I only want to show the latest status...
The date is in BL_PROJECT_TO_STATUS.STATUS_DATE (I've inserted a date criteria beneath, just to make it more visible).
How can this be done? I'm very new to ODBC and would appreciate it a lot.
SELECT DISTINCT
BL_PROJECT.EXP_PUB_DATE, BL_PROJECT.EAN, BL_PROJECT.TITEL,
MEDIATYPE.DESCRIPTION, BL_PROJECT_STATUS.DESCRIPTION
FROM
FIRMA1.BL_PROJECT BL_PROJECT, FIRMA1.BL_PROJECT_STATUS BL_PROJECT_STATUS,
FIRMA1.BL_PROJECT_TO_STATUS BL_PROJECT_TO_STATUS, FIRMA1.MEDIATYPE MEDIATYPE
WHERE
BL_PROJECT.PROJECT_ID = BL_PROJECT_TO_STATUS.PROJECT_ID AND
BL_PROJECT_TO_STATUS.STATUS_ID = BL_PROJECT_STATUS.CODE AND
BL_PROJECT.MEDIATYPE = MEDIATYPE.ID AND
((BL_PROJECT.PROJECT_TYPE = 2) AND
(BL_PROJECT.EXP_PUB_DATE Between SYSDATE AND (SYSDATE+90)) AND
(BL_PROJECT_TO_STATUS.STATUS_DATE = {ts '2013-11-20 00:00:00'}))
ORDER BY
BL_PROJECT.EXP_PUB_DATE, BL_PROJECT.EAN, BL_PROJECT.TITEL
Here is the general idea. You can adapt it with your table and field names.
select somefields
from sometables
join
(select something, max(datetimefield) maxdt
from table1
where whatever
group by something ) temp on table1.datetimefield = maxdt
etc
We have a database that stores vehicle's gps position, date, time, vehicle identification, lat, long, speed, etc., every minute.
The following select pulls each vehicle position and info, but the problem is that returns the first record, and I need the last record (current position), based on date (datagps.Fecha) and time (datagps.Hora). This is the select:
SELECT configgps.Fichagps,
datacar.Ficha,
groups.Nombre,
datagps.Hora,
datagps.Fecha,
datagps.Velocidad,
datagps.Status,
datagps.Calleune,
datagps.Calletowo,
datagps.Temp,
datagps.Longitud,
datagps.Latitud,
datagps.Evento,
datagps.Direccion,
datagps.Provincia
FROM asigvehiculos
INNER JOIN datacar ON (asigvehiculos.Iddatacar = datacar.Id)
INNER JOIN configgps ON (datacar.Configgps = configgps.Id)
INNER JOIN clientdata ON (asigvehiculos.Idgroup = clientdata.group)
INNER JOIN groups ON (clientdata.group = groups.Id)
INNER JOIN datagps ON (configgps.Fichagps = datagps.Fichagps)
Group by Fichagps;
I need same result I'm getting, but instead of the older record I need the most recent
(LAST datagps.Fecha / datagps.Hora).
How can I accomplish this?
Add ORDER BY datagps.Fecha DESC, datagps.Hora DESC LIMIT 1 to your query.
I'm not sure why you are having any problems with this as Lex's answers seem good.
I would start putting ORDER BY's in your query so it puts them in an order, when it's showing the record you want as the first one in the list, then add the LIMIT.
If you want the most recent, then the following should be good enough:
ORDER BY datagps.Fecha DESC, datagps.Hora DESC
If you simply want the record that was added to the database most recently (irregardless of the date/time fields), then you could (assuming you have an auto-incremental primary key in the datagps table (I assume it's called dataID for this example)):
ORDER BY datagps.dataID DESC
If these aren't showing the data you want - then there is something missing from your example (maybe data-types aren't DATETIME fields? - if not - then maybe a CONVERT to change them from their current type before ORDERing BY would be a good idea)
EDIT:
I've seen the screenshot and I'm confused as to what the issue is still. That appears to be showing everything in order. Are you implying that there are many more than 5 records? How many are you expecting?
Do you mean: for each record returned, you want the one row from the table datagps with the latest date and time attached to the result? If so, how about this:
# To show how the query will be executed
# comment to return actual results
EXPLAIN
SELECT
configgps.Fichagps, datacar.Ficha, groups.Nombre, datagps.Hora, datagps.Fecha,
datagps.Velocidad, datagps.Status, datagps.Calleune, datagps.Calletowo,
datagps.Temp, datagps.Longitud, datagps.Latitud, datagps.Evento,
datagps.Direccion, datagps.Provincia
FROM asigvehiculos
INNER JOIN datacar ON (asigvehiculos.Iddatacar = datacar.Id)
INNER JOIN configgps ON (datacar.Configgps = configgps.Id)
INNER JOIN clientdata ON (asigvehiculos.Idgroup = clientdata.group)
INNER JOIN groups ON (clientdata.group = groups.Id)
INNER JOIN datagps ON (configgps.Fichagps = datagps.Fichagps)
########### Add this section
LEFT JOIN datagps b ON (
configgps.Fichagps = b.Fichagps
# wrong condition
#AND datagps.Hora < b.Hora
#AND datagps.Fecha < b.Fecha)
# might prevent indexes to be used
AND (datagps.Fecha < b.Fecha OR (datagps.Fecha = b.Fecha AND datagps.Hora < b.Hora))
WHERE b.Fichagps IS NULL
###########
Group by configgps.Fichagps;
Similar question here only that that one uses outer joins.
Edit (again):
The conditions are wrong so corrected it. Can you show us the output of the above EXPLAIN query so we can pinpoint where the bottle neck is?
As hurikhan77 said, it will be better if you could convert both of the the columns into a single datetime field - though I'm guessing this would not be possible for your case (since your database is already being used?)
Though if you can convert it, the condition (on the join) would become:
AND datagps.FechaHora < b.FechaHora
After that, add an index for datagps.FechaHora and the query would be fast(er).
What you probably want is getting the maximum of (Fecha,Hora) per grouped dataset? This is a little complicated to accomplish with your column types. You should combine Fecha and Hora into one column of type DATETIME. Then it's easy to just SELECT MAX(FechaHora) ... GROUP BY Fichagps.
It could have helped if you posted your table structure to understand the problem.