I'm trying to figure out how to pull all rows from two different tables with the OutageID = X. The purpose of this is to view the current outage and all the revisions in one statement to see all of the changes. Below is an example I was trying. However, it puts it all in one row. I want it to display all rows separately like you would if you were to query SELECT * From Table WHERE X = Y.
The Current Outages are in one table and the history is in another so they are not written over and not to change the design of the current DB.
Outages Table
`strSQL = "SELECT Outages.OutageID, Outages.Outage, Outages.Building,
Outages.OutageType, Outages.OutageStart, Outages.OutageStartTime,
Outages.OutageEnd, Outages.OutageEndTime, Outages.Duration,
Outages.Reason, Outages.Areas, Outages.Comment, Outages.ORN,
Outages.Contact, Outages.Phone, Outages.Job, Outages.Timestamp
FROM Outages
WHERE (((Outages.OutageID)=3305));"`
Outage History Table
`strSQL = "SELECT OutageHistory.RevisonID, OutageHistory.OutageID,
OutageHistory.Outage, OutageHistory.Building,
OutageHistory.OutageType,
OutageHistory.OutageStart, OutageHistory.OutageStartTime,
OutageHistory.OutageEnd, OutageHistory.OutageEndTime,
OutageHistory.Duration, OutageHistory.Reason, OutageHistory.Areas,
OutageHistory.Comment, OutageHistory.ORN, OutageHistory.Contact,
OutageHistory.Phone, OutageHistory.Job, OutageHistory.Timestamp
FROM OutageHistory
WHERE (((OutageHistory.OutageID)=3305));"`
`Private Sub All_Revision_Histoy_Click()
Dim strSQL As String
strSQL = "SELECT * From OutageHistory WHERE OutageHistory.OutageID = " &
Me.OutageID & ";"
Debug.Print strSQL
ShowDataSheet strSQL`
I think that I might need to create a temp table and insert both rows for the results and then Delete the table when its closed. However, I am not sure how to do that. I already feel I may of bitten off more than I can chew with this one. Thank you in advance.
select * from (
select 1 as revisionID, Outages.* FROM Outages
WHERE (((Outages.OutageID)=3305))
union
select OutageHistory.* FROM OutageHistory
WHERE (((OutageHistory.OutageID)=3305))
) order by revisionID desc
Related
I have a query in which I select multiple values. To create my form.
The results look like this :
the last Column [Candidat Nom] is a drop down list with an other query (lets call it Query 1) that select my drop down list values.
The selection is good and is what I'm looking for. Except I get the same value for all lines when they need to be different.
To simplify
let's take the following exemple
I have the following candidate that wants to join for the following job (Represented with their ID).
As we can see 2 candidates wants job N° 12. and 1 candidate for each other job.
What I get
All candidates are listed for every job.
What I want
What I actually did
is I put the following query (Query 1) on my column.
SELECT T_SALARIE.SALARIE_nom & " " & T_SALARIE.SALARIE_prenom AS Candidat Nom
FROM T_EMPLOI INNER JOIN (T_SALARIE INNER JOIN (T_SALARIE_EMPLOI LEFT JOIN T_STATUT_EMPLOI ON T_SALARIE_EMPLOI.SALARIE_EMPLOI_statut_id = T_STATUT_EMPLOI.STATUT_EMPLOI_id) ON T_SALARIE.SALARIE_NNI = T_SALARIE_EMPLOI.SALARIE_EMPLOI_salarie_nni) ON T_EMPLOI.EMPLOI_identifiant = T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant
WHERE (((T_STATUT_EMPLOI.STATUT_EMPLOI_statut) Like "*valid*" Or (T_STATUT_EMPLOI.STATUT_EMPLOI_statut) Like "*décidé*") AND ((T_EMPLOI.EMPLOI_entreprise_id)=1));
This gave me the result I want but with the issue I mentioned previously (Same result for each line)
So
I thought I needed a new Criteria.
I added one, where It's going to select the candidate when the two "emploi ID" of my actual table (Shown before) and the one helping me select the candidates are equal.
With the following query:
SELECT T_SALARIE.SALARIE_nom & " " & T_SALARIE.SALARIE_prenom AS Candidat, T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant
FROM T_EMPLOI INNER JOIN (T_SALARIE INNER JOIN (T_SALARIE_EMPLOI LEFT JOIN T_STATUT_EMPLOI ON T_SALARIE_EMPLOI.SALARIE_EMPLOI_statut_id = T_STATUT_EMPLOI.STATUT_EMPLOI_id) ON T_SALARIE.SALARIE_NNI = T_SALARIE_EMPLOI.SALARIE_EMPLOI_salarie_nni) ON T_EMPLOI.EMPLOI_identifiant = T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant
WHERE (((T_STATUT_EMPLOI.STATUT_EMPLOI_statut) Like "*valid*" Or (T_STATUT_EMPLOI.STATUT_EMPLOI_statut) Like "*décidé*") AND ((T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant)=[R_Select_COMOB]![ACTION_identifiant_emploi]));
But I keep on getting the following pop up that asks me to enter a Job ID
So how can I make the query for each line compare and select the right values?
I hope I was clear in explaining. If not please let me know so that I can add more details.
Thank you !
Thanks to your help and specially #June7 for his propositions, I found a solution regarding my problem :
I added a criteria to select values based on JobID that I wasn't selecting in the first hand.
And then based on the column (jobID) select the values needed
here is my final query :
SELECT
[SALARIE_nom] & " " & [SALARIE_prenom] & " (" & [SALARIE_NNI] & ")" AS Salarié, T_SALARIE_EMPLOI.SALARIE_EMPLOI_salarie_nni, T_SALARIE_EMPLOI.SALARIE_EMPLOI_id, T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant
FROM
(T_STATUT_EMPLOI INNER JOIN T_SALARIE_EMPLOI ON T_STATUT_EMPLOI.STATUT_EMPLOI_id = T_SALARIE_EMPLOI.SALARIE_EMPLOI_statut_id) LEFT JOIN R_Select_Salarie ON T_SALARIE_EMPLOI.SALARIE_EMPLOI_salarie_nni = R_Select_Salarie.SALARIE_NNI
WHERE
(((T_SALARIE_EMPLOI.SALARIE_EMPLOI_emploi_identifiant)=[Formulaires]![F_COMOB]![ACTION_identifiant_emploi]) AND ((T_STATUT_EMPLOI.STATUT_EMPLOI_statut) Like "*validé*") AND ((T_SALARIE_EMPLOI.SALARIE_EMPLOI_Entreprise) Like "*RTE*"));
And Then to update my values for each line. I added a VBA code that requery on input.
Private Sub ACTION_Candidats_P_Enter()
ACTION_Candidats_P.Requery
End Sub
With that my problem is solved.
I have a table named Values with thousands of records (sample is a lot less). The data itself is unique except that some records share the same ID.
So I need a query to return random records depending on the total count of TestQ1. For example, the query has a total of 9 records for ID 120 so there should be 3 random records each time this query is run because that's what the Test table indicates (this table changes the "Test" numbers weekly).
Pictured:
The "Values" table is the raw data.
The "TestQ1" query has a total count for that specific "ID"
and to the right, is the number of records that should be returned.
This is as far as I've been able to get:
SELECT TOP 5 Values.ID, Values.Test, Values.State, Rnd([Values]![ID]) AS [Random No], * FROM [Values] ORDER BY Rnd([Values]![ID]);
TOP N cannot be dynamic in a query object.
Can calculate a group sequence ID and use that in criteria to return a number of records for each ID group. That requires a unique identifier field which can be provided with an autonumber. Set it as random so the selection can be different as records are added to dataset.
Consider SQL:
SELECT Values.PKID, Values.ID, Values.Test, Values.State, DCount("*","Values","ID=" & [Values].[ID] & " AND PKID<" & [PKID])+1 AS GrpSeq
FROM TestQ2 INNER JOIN [Values] ON TestQ2.ID = Values.ID
WHERE (((DCount("*","Values","ID=" & [Values].[ID] & " AND PKID<" & [PKID])+1)<=[TestQ2].[Test]));
However, if you truly need to return randomized set of records with each query run, I expect VBA will be needed. Either to populate a field in Values table with a randomized sequence number for each ID group or to populate a temp table with randomized dataset. Consider VBA to populate field:
Sub RandomSeq()
Dim rs1 As DAO.Recordset, rs2 As DAO.Recordset, x As Integer
Set rs1 = CurrentDb.OpenRecordset("SELECT DISTINCT ID FROM [Values]")
Do While Not rs1.EOF
Set rs2 = CurrentDb.OpenRecordset("SELECT * FROM [Values] WHERE ID=" & rs1!ID & " ORDER BY Rnd([ID]);")
Do While Not rs2.EOF
rs2.Edit
x = x + 1
rs2!GrpSeq = x
rs2.Update
rs2.MoveNext
Loop
rs2.Close
x = 0
rs1.MoveNext
Loop
End Sub
Now run query:
SELECT Values.ID, Values.Test, Values.State, Values.GrpSeq
FROM TestQ2 INNER JOIN [Values] ON TestQ2.ID = Values.ID
WHERE (((Values.GrpSeq)<=[TestQ2].[Test]));
Be aware this will not be practical in a split database with multiple simultaneous users. Then a temp table (located in frontend) approach may be needed.
I'm using MS Access
The SQL below updates the CurrNumTees field in the Parent tblContact records with the number of tblTorTee records that have an end date (which is not the ultimate effect I am aiming for, but I provide it as a starting point.
UPDATE tblContact
INNER JOIN tblTorTee ON tblContact.ContactId = tblTorTee.TorId
SET tblContact!CurNumTees = DCount("[tblTorTee.EndDate]",
"tbltortee","Torid = " & [ContactId]);
I need to update the CurrNumTees field with the number of records in tblTorTee that do not have an EndDate, in other words, that field is blank. I’ve tried using WHERE and HAVING and IS NULL in various combinations and locations, but without success. Could you help point me in the right direction?
The MS Access COUNT function does not count nulls, so I think you have to do this in two stages.
Firstly create a query like this:
SELECT TorId, IIF(ISNULL(EndDate),1,0) AS isN
FROM tblTorTee
WHERE EndDate IS NULL;
And save it as QryEndDateNull
Now you can run an Update Query like this:
UPDATE tblContact
SET tblContact.CurNumTees = DSUM("IsN","QryEndDateNull","TorId = " & [ContactID]);
Saving calculated data (data dependent on other data) is usually a bad design, especially aggregate data. Should just calculate when needed.
Did you try the IS NULL criteria within the DCount()?
UPDATE tblContact Set CurNumTees = DCount("*", "tblTorTee", "EndDate Is Null AND TorId = " & [ContactId]);
I have two tables (tblCurrentStudents and tblNewStudents) in an Access file. tblCurrentStudents was current at of the end of the last school year and contains a list of last year's students and their information. tblNewStudents contains a complete list of this year's student information. There are some students common to both tables, meaning they were here last year and are here this year. However, in tblCurrentStudents there are some students who were NOT here last year, but enrolled at the beginning of this year.
What I need to do now is remove the students from tblCurrentStudents who are no longer enrolled, meaning they left at the end of last year and will not be in tblNewStudents.
I know I can join two tables together using a Union command (I found the necessary code to do this). I don't know how to do the opposite, meaning find those records not common to both tables and remove just those records from tblCurrentStudents.
Any suggestions? Is there such as thing as a Not Union command?
Assuming I'm understanding your question correctly, you want to remove any student from tblCurrentStudents who are not in tblNewStudents?
If so, I think you're looking to use IN():
DELETE FROM tblCurrentStudents
WHERE StudentId NOT IN (
SELECT StudentID FROM tblNewStudents)
I created a practice set of tables that simulate what I want. This is the UNION code I found on the Internet and used:
Private Sub Command0_Click()
Dim sql As String, sTable As String, oTD As TableDef
sql = "SELECT * FROM MergeTable UNION SELECT * FROM MainTable"
If MsgBox("Store unique records in a Table?", vbYesNo) = vbYes Then
sTable = InputBox("Which table name?", , "tblMerged")
For Each oTD In CurrentDb.TableDefs
If oTD.Name = sTable Then sTable = sTable & "1"
Next oTD
sql = "SELECT * INTO " & sTable & " FROM (" & sql & ")"
DoCmd.RunSQL sql
End If
End Sub
Assuming I'm understanding your question correctly, you want to remove
any student from tblCurrentStudents who are not in tblNewStudents?
Yep, that's exactly what I need. I'm going to try the IN command. I'll let you know how it goes.
Is it possible to mimic GROUP BY functionality from SQL using Cassandra? If yes, please provide a short example that does that.
I was thinking, if the groups where known a head of time, then a loop of multiple async queries on each different group would have a similar effect.
For example group by on months.
for month in range(1,12):
query = "select * from table where col_month = " + month
session.execute_async(query)
If this isn't an option you would have to first select what you are grouping on and take the set of all data.
query = "select col_month from table"
rows = session.execute(query)
values = Set()
for row in rows:
values.add(row)
query = "select * from table where col_month = "
for value in values:
session.execute_async(query+value)