Query Selects No Records, How To Convert Null To Zero

Apr 29, 2008

Simple query, but I need to roll the results up with others and a null return is hurting me. I have been chasing my tail around with the nz(), input masks, IIF statements, only to prove my ignorance and possible insanity for expecting different results.

Here we go:

SELECT Count([LDB LOG].DSTHTL) AS ["tot120"]
FROM [LDB LOG]
WHERE ((([LDB LOG].[LDB Rcvd]) Between Now()-120 And #1/1/2008#))
GROUP BY [LDB LOG].[T-7 Date]
HAVING ((([LDB LOG].[T-7 Date]) Is Null));

This is being used to count open items into age buckets, the above is the greater than 120 days (discounting anything prior to 2008). If the T-7 Date is null the item is open. What is happening is that no records are being selected, resulting in the null value back.

Any help would be greatly appreciated as I have spent an unrealistic amount of time on this.

Thanks
Brendan

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Queries :: Query Selects Records Twice

Aug 22, 2013

why this query pulls every record twice and what I can do to fix it?I did it in design mode because I'm an amateur, but here is the SQL.

SELECT [Patient Data Table].[First Name], [Patient Data Table].[Last Name], [Patient Data Table].[C MRI Facility], [Patient Data Table].[C MRI Sched Date], [Patient Data Table].[C MRI Scan Done]
FROM [Patient Data Table], [Date Range]
WHERE ((([Patient Data Table].[C MRI Scan Done])=Yes) AND ((Month([C MRI Sched Date]))=[Date Range]![From Month]) AND ((Year([C MRI Sched Date]))=[Date Range]![From Year]));

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Queries :: Selects Active Records For Three Different Selections - Concatenate Query Results

Nov 3, 2014

I have a query that selects the "Active" records for three different selections, A, B or C.. There may be 1, 2 or 3 results for a particular selection. That is Selection A may have one result or active records, but Selection B may have three results.

I want to use data from the query to populate a field on a form. For example, if the results for Selection A, having one "Active" record would be RecordAData. But for Selection B with three "Active" records the result would be RecordBData & " " & RecordBData2 & " " & RecordBData3

My query is:
SELECT tblSomething.ID, tblSomething.D1, tblSomething.D2, tblSomething.D3, tblSomething.D4, tblSomething.D5, tblSomething.D6, [D3] & " " & [D4] & " " & [D5] & "-" & [D6] & " " & "SomeText" AS Header
FROM tblSomething
WHERE (((tblSomething.D1)=Forms!frmSomethingHeaders!D1) And ((tblSomething.D2)=True));

The concatenation in the query is labeled "Header". I want to be able to Concatenate the "Header" which in itself is a concatenation in the query.

I thought that this might be a looping through the query results, but I cannot figure out how to do it. But then, that is only my uneducated guess.

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Queries :: How To Write A Query Which Selects Multiple Records From A Table At Once For Updating

Aug 14, 2013

I have a list box whose data is inserted in a table named as "test0" ,now in a macro of vba i want to select all the items in the list box and create there pdf files in a folder at my desired location. So far i have managed to create a pdf file of single item ,but i want to select multiple items at once ,

Code:
SELECT test0.ID, test0.item FROM test0 WHERE (((test0.item)=[ItemNumber]));

So, in this query itemNumber are multiple and i want to create there pdf files at once ..just on a click of one button ?

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Query With Is Null Returning Not Null Records

Apr 18, 2006

Hello all,

A bit of a weird one, I've got a query and the criteria for showing records is that one particular field is null. However the query is showing records with the values in the field chosen for the Is Null.

Not sure why this is happening, has anyone come across this problem before?

Thanks.

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Dec 21, 2005

I'm creating an Access data entry form for computer installations.

Basically the entry form will choose a software and license, then select one or more computers to install the software on.

Then later we can create a report that can track what softwares are installed on the computers, or track what computers has what softwares.

Now my question is for each record of the installation entry form, after we select the software, then we will choose a computer name or more computer names.
If just one computer is easy, but how can I choose multiple computers, which control should I use? and how can I store the computer name list in the installation table, do I have to make each computer installation a record in the table or put multiple computer names in one record in the field like memo, but if I use memo, later it seems i cannot group or search memo field?

Can anyone give me some ideas about what is an easy design solution or samples about these?

Thanks a lot

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Convert 0 (zero) To Null

Apr 23, 2007

Hi.
I have a db with a numeric field called Eur_2.
This field is populated with data imported from an excel file.
When the Eur_2 excel field contain Null, in the correspondent Access Field the value inserted is 0 (zero).
I have necessity to put in the Access field Null value.
The VBA code that I use for import is:

Eur_2 = XL.Application.Cells(indriga, indcolonna + 10)
If Eur_2 = 0 Or _
Eur_2 = Empty Then
Eur_2 = Null
End If

but when i open the Access table, the value inserted is 0 (zero).
There's something to do for change 0 (zero) to Null?

Thanks
Luigi

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Convert Null To 0

Dec 20, 2007

Hi Guys, i have a problem in converting NULL to 0 , i wrote a query which gave me a Null value, But i would like to know if there is any way i can change the NUll value to 0.

ex
SELECT Sum(xxxx) AS yyyy FROM zzzzz WHERE******=#####;

i got NULL.
I need to get 0 instead of Null.

Plz help

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Convert Zero Values To Null In Form

Sep 20, 2005

Hi,

I would like to convert zero if enter into null value during the data entry phase in a form. This means that zero values will be stored as null values. Is there a way? I am not able to do it in the input mask somehow.

Thanks for any help in advance.

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Queries :: Can Query Convert A Field Value Into Number Of Records?

May 11, 2013

I build a database to manage some events. To simplify things, let's assume an event takes place on 3 days, from 01-05-2013 to 03-05-2013.

I create a table named EVENTS.

Among other stuff, I create the following fields:
EVENT_first_date
EVENT_last_date

Then I create a query which returns the number of days the event will take place on.

EVENT_total_days: [EVENT_last_date]-[EVENT_first_date]

I use an append query to insert this new record into the table EVENTS_MAIN.

I wish to set the start time and end time for all event days in hours and minutes. I will use these entries for displaying start time and end time for each event days, to calculate daily total hours and event total hours later on.

Therefore, I wish to create a query that will display event date 1, event date 2 and event date 3, based on the number of the EVENT_total_days field, so I can set the start time and end time for each day separately.

Is it possible to "convert" or "switch" the number of the days into number of records? Can a query convert a field value into number of records?

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Mar 17, 2007

Is it possible to create a query which selects selects fields in a table, not just data in a field? If so, how?

TIA

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Multiple Selects In An Access Passthru Query

Sep 7, 2005

Hi,

I'm trying to run a pass thru query into a sybase server from Access. The query contains multiple selects which Access doesn't appear to like very much. The query works fine when run in Sybase.

Is there any way of circumventing this problem?

I could split the three selects into three seperate queries to view the individual results but the third set is dependant on the previous two sets and so therefore is difficult (impossible?) to seperate out as a third individual query.

Thanks for any suggestions?

Select
s.id_prtf Portfolio_ID,
s.id_imnt Instrument_ID,
s.id_imnt_swap Instrument_Swap_ID,
s.id_ccy_std Currency,
s.am_posn Position,
s.am_pnl_eqty PNL_Eqty

into #temptable1
from
SET_VALUATION s, INSTRUMENT i
where
s.id_imnt = i.id_imnt
and s.id_posn_ref is NULL
and s.id_imnt_swap is NULL
and s.am_pnl_eqty > 0
and i.id_typ_imnt != 'SFX'

Select
s.id_prtf Portfolio_ID,
s.id_imnt Instrument_ID,
s.id_imnt_swap Instrument_Swap_ID,
s.id_ccy_std Currency,
s.am_posn Position,
s.pr_imnt_mtm_prev,
sy.pr_imnt_mtm,
s.am_mv_prev,
sy.am_mv

into #temptable1a
from SET_VALUATION s, SET_VALUATION_HIST sy, REFERENCE_DATA r
where
s.id_prtf = sy.id_prtf
and s.id_imnt = sy.id_imnt
and s.pr_imnt_mtm_prev != sy.pr_imnt_mtm
and s.am_mv_prev != sy.am_mv
and r.dt_bus_lst = sy.dt_bus

select
t.*,
tt.pr_imnt_mtm_prev,
tt.pr_imnt_mtm,
tt.am_mv_prev,
tt.am_mv

into #newtemp
from #temptable1 t, #temptable1a tt
where
t.Portfolio_ID = tt.Portfolio_ID

delete from #temptable1
where #temptable1.Portfolio_ID in (select Portfolio_ID from #newtemp)
delete from #temptable1a
where #temptable1a.Portfolio_ID in (select Portfolio_ID from #newtemp)

select "Where id_posn_ref is NULL and id_imnt_swap is NULL is the only criteria"
select * from #temptable1
select "Where SET VAL's pr_imnt_mtm_prev does not equal SET VAL HIST's pr_imnt_mtm, is the only criteria"
select * from #temptable1a
select "Where the output satisfies both Where id_posn_ref is NULL and id_imnt_swap is NULL AND Where SET VAL's pr_imnt_mtm_prev does not equal SET VAL HIST's pr_imnt_mtm"
select * from #newtemp

drop table #temptable1
drop table #temptable1a
drop table #newtemp

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May 22, 2015

I have a query which returns, among other things, a number of boolean fields. In some cases, there will be a genuine True or False value in each of these fields; in others, it can and should be Null (e.g. as a result of a 'failed' LEFT JOIN of some description, where there is no associated record in the joined table which fulfills the criteria)

So something like this :

Code:
SELECT [tblTable2].[fldBooleanField]....
FROM [tblTable1]
LEFT JOIN [tblTable2]
ON [tblTable1].[SomeID] = [tblTable2].[SomeID]

However, I will be writing the result of the query to a text file and here's the problem. I want to show a numeric value for a genuine True / False (i.e. -1 and 0 respectively using the standard boolean conversions in Access) and a blank for any Null values.

So I tried this :

Code:
SELECT CInt([tblTable2].[fldBooleanField]) AS fldBooleanField....
FROM [tblTable1]
LEFT JOIN [tblTable2]
ON [tblTable1].[SomeID] = [tblTable2].[SomeID]

However, currently when I look at the exported recordset in Notepad, I am getting 0's for both False and Null values (and -1 for True)

How I can adapt my query to keep Nulls...null? And convert the genuinely present boolean values to integer form?

Only thing I can think of is to use (untested) :

Code:
IIf([tblTable2].[fldBooleanField] Is Null, Null, CInt([tblTable2].[fldBooleanField]))

But there's a number of boolean fields in there, all requiring the same treatment.

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Aug 4, 2005

Hi, I have a query which works perfectly and deletes the unnecessary records according to the criteria i have set , but i dunt want this null values in all column to display in the exported output file. how do i delte the records which are already null .
i tried delete query but it did not work

Please help me

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Aug 4, 2005

Hi, I have a query which works perfectly and deletes the unnecessary records according to the criteria i have set , but i dunt want this null values in all column to display in the exported output file. how do i delete the records which are already null .
i tried delete query but it did not work . This is in microsoft Access.

Please help me

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Nov 21, 2005

Depending on the answer of a question, i would like to get the records that have no data in that specific field, otherwise i want the query to give me all records.
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Who can help me?

Thanks
Fred

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Mar 5, 2014

I have two questions, both the same query.

I need a date prompt and null records in the same line of criteria so I get all those within a certain date range under the field "CO_resp_rcvd" and those that didn't respond yet but need to -- is that possible to do both and if so how would you show me how?

This is what I have currently in my query

CO_resp_rcvd (date field)

Criteria: Between [Start Date] And [End Date]

(I need null values as well because there will be some if the CO has not responded yet but needs to)

Formula:

This formula gives me the number of bus days from the Review Date - CO_Resp_Rcvd Date and that works but if the CO-Resp-Rcvd date is null, I need it to calculate Review Date - Today's date to show the number of days outstanding for those that have not responded yet in the same formula?

Not sure how to combine it to work - the wrapper is a bus day function

This is what I have so far in the query

CO-Bus Days to Respond: Wrapper([Review Date],[CO_resp_recd]) but if CO_resp_recd is null then ([Review Date],Date())

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Feb 20, 2013

I have what I think is a simple query returning the names of students that have been dismissed since September 2012 using a "WithdrawnDate" field. The query pulls a lot of information from other related tables (about 6 different ones), and has two expressions.

When the criteria is set to either "Is Not Null" or a date range (which is all I need), it does not return the complete set of records based on the data that fits the criteria in the main table?

Could there be some sort of join preventing all records from being returned?

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Nov 16, 2007

I think the title pretty much sums it up....

I have a query where data is first sorted by user input; first field's criteria: [fieldname], then by another field's criteria: Is Null.

I know there are records containing null values in the second field, as I have run a select query with the criteria: Like "*", to make sure they are null, and not zero-length-strings.

The query is refusing to return any results...

Any ideas?

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Oct 7, 2005

I have this code that works fine exept for one thing. If I have two names that are the same it deletes them both.
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currentdb.execute "delete table1 (last, first) from table1 where last ='"&list0 &"'"
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Basically Im moving data from one table to another via listboxes.

thanks in advance

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The WellSchoolCommunityAll table is the entire database. So if the student entry has a valid family_id, matching pattern "*#" then

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This query gets me nothing, no records.

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Hi

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Hi guys,

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