Finding 'null' Date Fields With Query?

Apr 19, 1999

I know I am missing something basic, here.
I have a date field in a table. The field is 'allowed Nulls'. When a certain thing happens in the program, the date is filled in.
At various times, I need to do a query to find all the rows that have no dates entered.

What do I use in my where clause? SQL server does not like 'where date = null.'

Thanks,
Judith

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Importing Null Date Fields

Nov 27, 2006

I'm using SQL Server Express and am trying to import a CVS file. The CVS file contains a string field (named DAS) that represents a Date. This field can be null.

I've tried using the DTS Wizard to import this CVS file and convert the DAS field to a Date, which works great until it hits a record with a NULL DAS field. It then throws a convertion error.

Still using the DTS Wizard, I've changed the DataType of the DAS field in the Source file to [DT_DATE], it works fine but all the null dates are converted to 12/30/1899.

Is there a way (DTS Wizard or something else) that will allow me to import these CVS files with null Date fields and keep them as null in SQL Server table.

Thanks for any help,

Jon

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Select Null Value Date Fields Record

Sep 28, 1999

Hi:

I used this statement, select * from table1 where date1 = null, in SQL Query window and got a few records back. Now, I used the same statement in my VB 5 code and no record is found. How do I select all the records in table1 which do not have values in field date1? Thanks for the help.

-Nicole-

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Jul 25, 2006

I am using a DAL and i want to insert a new row where one of the columns is DATE and it can be 'NULL'.
I am assigning SqlTypes.SqlDateTime.Null.
But when the date is saved in the database, i get the minvalue (1/01/1900) . Is there a way to put the NULL value in the database using DAL????how can i put an empty date in the database?
THANK YOU!!!

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Jun 6, 2001

how can i write a SQL query that will pull all records that are equal to NULL??

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Oct 21, 2005

Hi! Good Day!

What is the syntax to format the datefield? The value of my datefield is like this:

10/13/2005 5:15:02 PM

What is the select query to filter the date only. My desired result should be:

10/13/2005

only.

Thanks :)

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Query For 'null' In A Date Column-how?

Apr 19, 1999

I know I am missing something basic, here.
I have a date field in a table. The field is 'allowed Nulls'. When a certain thing happens in the program, the date is filled in.
At various times, I need to do a query to find all the rows that have no dates entered.

What do I use in my where clause? SQL server does not like 'where date = null.'

Thanks,
Judith

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How Can NULL Be Equal To Today's Date (was Weird Query Behavior Plz Help)

Feb 7, 2005

I have a query that is behaving a little a weird. here is the example:

i have 1 table in this table i have 2 columns wich are date and time

DATE_DEBUT_PERIODE_FISCALE DATE_FIN_PERIODE_FISCALE
------------------------------ ---------------------------
1/27/1997 2/27/1997
1/1/2005 2/6/2005

here is my query:

BEGIN
declare @datefin_flag datetime, @strip datetime
SELECT @strip = dateadd(d,datediff(d,0,getdate()),0)
SELECT @datefin_flag = DATE_FIN_PERIODE_FISCALE FROM DM_LKP_CALENDRIER_PERIODE_F
WHERE DATE_DEBUT_PERIODE_FISCALE < @strip AND DATE_FIN_PERIODE_FISCALE = @strip
--select @datefin_flag
--select @strip
IF(@datefin_flag != @strip)
RAISERROR('You cant run this',16,1)
END

Well this Query should return the raiserror it returns completes successfuly
since todays date is not the same as the date in the database.
if you select @datefin_flag it returns NULL and if you select @strip it brings back todays date how can NULL be equal to to todays date assuming that todays date is equal to NULL. ?

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Apr 28, 2006

I have data looks like below

23-4c-4f-3rd-2
23-5c-4ad-3-2

THis is all in one field. I need to use sql to take out the data between the 1st and third hyphens to return

4c-3rd
5c-4ad

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Mar 20, 2015

I am trying to find a beginning date from multiple date ranges, for example:

RowNumberidBegin dtEnd Dt
107933192014-09-022015-06-30
207933192013-09-032014-09-01
307933192012-09-042013-09-02
407933192011-09-062012-09-03

For this id: 0793319, my beginning date is 2011-09-06

108203492014-09-022015-06-30
208203492013-09-032014-09-01
308203492012-09-042013-09-02
408203492011-12-122012-07-03--not a continuous date range

For this id: 0793319, my beginning date is 2012-09-04

108203492014-09-022015-06-30

For this id: 0820349, my beginning date is 2014-09-02

To find continuous date, you look at the beginning date in row 1 and end date in row 2, then if no break in dates, row 2 beginning date to row 3 end date, if no break continue until last date There could multiple dates up to 12 which I have to check for "no break" in dates, if break, display beginning date of last continuous date.

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Jul 23, 2005

Hello !I'm trying to update one table field with another table searched firstdate record.getting some problem.If anyone have experience similar thing or have any idea about it,please guide.Sample case is given below.Thanks in adv.T.S.Negi--Sample caseDROP TABLE TEST1DROP TABLE TEST2CREATE TABLE TEST1(CUST_CD VARCHAR(10),BOOKING_DATE DATETIME,BOOKPHONE_NO VARCHAR(10))CREATE TABLE TEST2(CUST_CD VARCHAR(10),ENTRY_DATE DATETIME,FIRSTPHONE_NO VARCHAR(10))DELETE FROM TEST1INSERT INTO TEST1 VALUES('C1',GETDATE()+5,'11111111')INSERT INTO TEST1 VALUES('C1',GETDATE()+10,'22222222')INSERT INTO TEST1 VALUES('C1',GETDATE()+15,'44444444')INSERT INTO TEST1 VALUES('C1',GETDATE()+16,'33333333')DELETE FROM TEST2INSERT INTO TEST2 VALUES('C1',GETDATE(),'')INSERT INTO TEST2 VALUES('C1',GETDATE()+2,'')INSERT INTO TEST2 VALUES('C1',GETDATE()+11,'')INSERT INTO TEST2 VALUES('C1',GETDATE()+12,'')--SELECT * FROM TEST1--SELECT * FROM TEST2/*Sample dataTEST1CUST_CD BOOKING_DATE BOOKPHONE_NOC12005-04-08 21:46:47.78011111111C12005-04-13 21:46:47.78022222222C12005-04-18 21:46:47.78044444444C12005-04-19 21:46:47.78033333333TEST2CUST_CD ENTRY_DATE FIRSTPHONE_NOC12005-04-03 21:46:47.800C12005-04-05 21:46:47.800C12005-04-14 21:46:47.800C12005-04-15 21:46:47.800DESIRED RESULTCUST_CD ENTRY_DATE FIRSTPHONE_NOC12005-04-03 21:46:47.80011111111C12005-04-05 21:46:47.80011111111C12005-04-14 21:46:47.80044444444C12005-04-15 21:46:47.80044444444*/

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Apr 10, 2007

I want to write a query to bring out any records in a table
where any of its fields contain a null value.  I could do it in this way:
 
select    *

from    
customers
where   name is
null
or         role
 is null
or         email
is null
u003c/p>u003cp styleu003d"margin:0cm 0cm 0pt">u003cfont faceu003d"Times New Roman" sizeu003d"3">u003cfont coloru003d"#000000">However I want to perform a similar function for a number of tables and the method above would mean more sql and maintenance.u003cspan>Â u003c/span>I was hoping there was a simple way to do the same thingu003cspan> ie find any rows with a blank fieldu003c/span>?u003cspan>u003cfont faceu003d"Arial" sizeu003d"2">Â u003c/font>u003c/span>u003c/font>u003c/font>u003c/p>u003c/span>u003c/font>u003c/div>",0]
);
D(["ce"]);

//--> 
However I want to perform a similar function for a
number of tables and the method above would mean more sql and maintenance.  I was hoping there was a simple way to
do the same thing ie find any rows with a blank
field?

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Jan 9, 2007

If I have a query such as
SELECT * FROM TABLE WHERE PARENT = NULL

where a run a query like this one it returns zero results. I am not sure why. How can I look in a column for empty or null results?

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Feb 12, 2015

I have two table People and Employee, both have firstname and lastname as fields

I want to display only the names that don't match on firstname and lastname

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Finding Most Recent Date From Current Date?

Oct 21, 2013

the requirements are to return person ID with the most recent leaving date from a scheduled dept, who has previously arrived at an unscheduled dept within 7 days, but just now my query shows all the previous leaving dates within 7 days of that unscheduled dept arrival, I only want the last leaving date before the arrival at the unscheduled dept:

So for instance looking at a copy of one person's date below I have:

PersonID Last Dept Arrival Date To Last Dept Leaving Date From Last Dept Next Arrival Date to Unscheduled Dept
======== ================= ========================= =========================== =====================================
0106573268Dept 5 2013-03-01 2013-03-03 2013-03-05
0106573268Dept 6 2013-02-27 2013-02-27 2013-03-05
0106573268dept 2 2013-02-26 2013-02-26 2013-03-05

In the data above I only want to return the first row, which is the most recent leaving date before arrival at an unscheduled dept.

My query is much the same as before except my inline view is looking at the data for last scheduled leaves from depts in my inline view and also the outer query returning all arrivals to the unscheduled dept:

SELECT b.personID
,b.dept AS "Last leaving dept"
,b.arrival_Date as "arrival Date To Last dept"
,b.leaving_Date AS "leaving Date From Last dept",
a.[arrival Date] as "Next arrival Date to AREA_GH"
FROM Unscheduled_Arrival a INNER JOIN (SELECT *
FROM scheduled_Leaves
where [leaving date] is not null) b
ON a.Person_ID = b.Person_ID

[code]....

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Oct 25, 2007

Hi;

We received a Payment from a customer on '10/10/2007 10:30:00'. i am trying to calculate the commission we would receive from that payment. the commission rate can be edited. so i have to find what the commission rate was when that payment was received.


I have a CommisionAudit table that tracks changes in commission rate with the following values.

ID | Commission Change | UpdatedOn
----------------------------------------------
1 | Change from 20->25 | 03/07/2007 09:00:00
----------------------------------------------
2 | Change from 25->35 | 10/09/2007 17:00:00
----------------------------------------------
3 | Change from 35->20 | 01/10/2007 16:00:00
----------------------------------------------
4 | Change from 20->26 | 11/10/2007 10:00:00
----------------------------------------------


with this payment, as the commission rate had been changed on 01/10/2007 it would obviously be 20%(ID 3). But I need to write sql to cover all eventualities i.e. Before the first and after the last. any help would be most welcome.

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SQL Server 2014 :: Finding NULL In CASE Statement

Sep 15, 2015

The below code returns a NULL for all the Differential backups. I am trying to return the word Differential when there is a NULL because I can tell from when the NULLs occur that those are my differential backups. How can I get the result I want?

SELECT
CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS Server,
msdb.dbo.backupset.database_name,
msdb.dbo.backupset.backup_start_date,
msdb.dbo.backupset.backup_finish_date,

CASE
WHEN msdb..backupset.type = 'D' THEN 'Database'

[Code] .....

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Apr 28, 2006

Is there a way to write a select statement that will pull only fields that are not null?

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Apr 9, 2000

I am working on Sql Server 7.0 with a group of Visual Basic programmers that have made the following request:

1.They want all decimals/integer fields in the database to default to 0(zero).
Is there an way to do this for all fields instead of on an individual basis?
2.They don't want a null returned on any character string field.

What is the best way to take care of these 2 requests? Thanks in advance.
Karen Suenram

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Sep 29, 2005

Hi,

I have a query like this one

SELECT expense_id, CAST(expense_id AS char(10)) + ' - ' + CAST(trip_km AS char(5))+ ' - ' + CAST(expense_amount AS char(5)) + ' - ' + charge_centre AS ExpenseDesc

If charge center is null, I need to ignore this field. How can I achieve this? The reason is that if any of the field is null, it will return ExpenseDesc as null.

Thanks

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Jun 5, 2008

Here is the problem that I am struggling with. The structure is:

States: StateID, StateName
Counties: CountyID, CountyName
Cities: CityID, CityName
Zips: Zip, StateID, CountyID, CityID
Regions: RegionID, RegionName
Region_Data: RegionID, StateID, CountyID, CityID

The thing about the region is that it can be defined by states only, in which case CountyID and CityId are NULL, can be defined by Counties too, in which case only CityID is NULL or it can be defined up to City level, in which case all 3 are set to something. Example, Northeast would be all cities from northeast, but Pocono would be just some counties in PA, and so on...

The issue is now selecting all cities that belong into a region... Normally I would join the Zips table with the Region_Data table and retrieve all CityIDs... The issue is that, as I said, the CountyID and CityID might be null for some records, so I am not sure how to retrieve them?

I came up with one idea in which I create 3 temporary tables and I select in them all the records that have 1) only state, 2) only state and county, 3) all 3, then I join each and I union the results...

But I am wondering if there is a way to do the select in one shot?

Any idea? I appreciate your help,

Thank you,

Iulian



Regards,

Iulian

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Mar 16, 2008

How can I make empty cells show NULL on my table? Some cells show NULL others won't. Does this mean that they have contents?

The reason being is that, when I use the code

Select *
From Employees
Where JobDescription1 Like '%montly%'

Those with empty jobdescription1 show with the legitimate results.

Any help please?

Thanks!

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Nov 20, 2007


Im trying to use MS SQL server mananagement studio to greate a view to recive information from my database.
The problem i have is that i include a tabel where a post have "Null" then that post will not be shown i my qustion/View.

How can i make soure that i get all the post even if they have "null" in a field where it do not mather(its not a Key)

Greatful for very fast, help. Need this to be solved tomorrow :-(

Mitmit

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Apr 26, 2006

Requirements:

1) Cannot have results in which both m.homephone & d.homephone are both null, or both m.workphone & d.workphone are both null in the result set

2) We also do not want to see any combos where one homephone is null and the other has only the char 0....same for workphone...no null & 0 combinations.

e.g.

m.homephone   d.homephone

null                       0

0                          null

The phone fields are varchar

I know this is hidiously wrong but is my first sloppy attempt at best:
select m.number, m.homephone as master_homephone, d.homephone as debtor_homephone, m.workphone as master_workphone, d.workphone as debtor_workphone
 
FROM master m
 
INNER JOIN debtors d ON d.Number = m.number
 
where (d.homephone <> m.homephone OR d.workphone <> m.workphone)
AND (d.homephone IS NOT NULL AND m.homephone IS NOT NULL)
AND (d.workphone IS NOT NULL AND m.workphone IS NOT NULL)
AND NOT ((d.homephone IS NULL AND m.homephone = '0') OR (d.homephone = '0' AND m.homephone IS NULL))
AND NOT ((d.workphone IS NULL AND m.workphone = '0') OR (d.workphone = '0' AND m.workphone IS NULL))

 

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Aug 11, 2006

I have a tutorial in which there is a question to find the person who will be celebrating their Birthday within a week.

The table contains : name, dob, sex

Thanks


Knowledge grows when shared...

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Aug 20, 2007

I've 2 date fields clidlp,clidlc in my data base table. How do I find the newest dates between the fields? Thanks for your help!

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Nov 17, 2006

Hi  there,
 I have a fairly generic question regarding database design.
I am working  on my first database using SQL  Express.
I am testing the database by inserting records into the pre  defined tables.
Sometimes I  forget to input text into a non null  field. When
this  happens  it displays an error  and then skips a  few rows
which makes my  row numbering  messy.  For example  say I have 
Row  1, Row 2 Row  3 all  nicely  formatted but on Row 4  I make  a mistake
this  row then disapears and  their is  gap  between  3 and 5 where  4  was.
Although I am just testing, I was  wondering  what happens in a  real
scenario if an inexperienced data input person makes a few  mistakes it
makes the database  numbering  systems look bad. In  this case
is it common  to  make  most  fields  NULL to allow for admin errors??
 
 
 

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Mar 19, 2008



I have a result set stored in a temporary table variable. The fields need to have heirarchy when they finaly get displayed to the user. I need to replace the repeating fields per group with NULL and leave out only one set of unique records per group.

I want to do something like this- make the fields in red NULL while leaving out the ones in green.

{ Col.Group I } { Col. Group II }

Col1 Col2 Col3 Col4 Col5
------- ------- ------- ------- -------
ValA ValA2 ValA3 ValA40 ValA50 {
ValA ValA2 ValA3 ValA40 ValA50 Row. Group A
ValA ValA2 ValA3 ValA41 ValA51 }

ValB ValB2 ValB3 ValB40 ValA50 { Row. Group B
ValB ValB2 ValB3 ValB41 ValA51 }



I was able to achieve this by using @@ROWCOUNT with in a while loop by performing one UPDATE at a time (SET ROWCOUNT = 1). But i have to run Count(*) each time I loop through the update query to figure out the remaining number of rows I have per group as I need to leave out one untouched. But the Count function is taking too much time and I'm having performace issues.

Any idea how I might be able to do this in my stored proc. efficiently?

Thanks,

Samtadsh

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May 22, 2008



Hi all

I have a calculated fields in report designer such as a + b + c + d. In sql server if I run this query

select a + b + c + d from table1

and any of a,b,c or d is null, the result is null.

whereas in calculated fields, it does not return null but infact ignores the null value and treats it as zero.

I want my calculated field to be null if any of the values are null.
Is it possible? I cannot use the isNothing function because I have too many fields and it will be quite cumbersome.

Thanks

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Jul 11, 2006

Hey everyone,

This is probably a very simple question, but I am just stumped. I am storing different name parts in different fields, but I need to create a view that will pull all of those fields together for reports, dropdowns, etc.

Here is my current SELECT statement:

SELECT m.FName + SPACE(1) + m.MName + SPACE(1) + m.LName + ', ' + m.Credentials AS Name,
m.JobTitle,
m.Company,
m.Department,
m.Address,
m.City + ', ' + m.State + ' ' + m.Zipcode AS CSZ,
m.WorkPhone,
m.FAX,
m.Email,
c.Chapter,
m.Active,
s.Sector,
i.Industry
FROM tblMembers m
LEFT OUTER JOIN tblChapters c
ON m.ChapterID = c.ChapterID
LEFT OUTER JOIN tblSectors s
ON m.SectorID = s.SectorID
LEFT OUTER JOIN tblIndustries i
ON m.IndustryID = i.IndustryID
WHERE m.DRGInclude = 1

My problem is that I don't know how to test for NULL values in a field. When you concatenate fields that contain NULL values, the entire contactenated field returns NULL. I am not aware of an IF statement that is available within the SELECT statement.

The first thing I would like to accomplish is to test to see if MName contains NULL. If it does I do not want to include + SPACE(1) + m.MName in the clause. Then, if Credentials contains NULL I do not want to include + ', ' + m.Credentials in the clause.

Can someone tell me what I am missing? Is there a function that I can use for this?

Thanks,

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Jul 26, 2006

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Nov 26, 2013

I want to find out the earliest [First_Post_Date] for any parentdid

My query (See below)
Produces the following results
SELECT
ParentID
,[First_Post_Date]
,[FDMSAccountNo]
FROM [FDMS].[dbo].[Dim_Outlet]
where ParentID = '878595212886'
Order by ParentID desc

[code]....

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May 13, 2014

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Here is my code :

SELECT TD.sro_num, SRO.description, SRO.cust_num, custad.name, SRO.sro_type, TD.whse, TD.CostCode, TD.stat_code, TD.[No of days in Status],
SRO.total_cost_lbr, SRO.total_cost_matl, SRO.total_cost_misc, ((SRO.total_cost_lbr) + (SRO.total_cost_matl) + (SRO.total_cost_misc)) AS total,
convert(varchar,MAX(mt.trans_date), 103)as max_matl_transdate, convert(varchar,MAX(lbr.trans_date), 103)as max_lbr_transdate, convert(varchar,MAX(misc.trans_date), 103) as max_misc_transdate

[code]...

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