Date Comparison

Dec 28, 2005

I have two tables that I am needing to link by the tables date field. In one table the date field is defined as varchar(23). The time for this field is always zeros.
Example: '2005-12-27 00:00:00.000'

The other table is defined as datetime, and it does have the date and time in this field.
Example: 2005-12-27 08:00:35.000

The problem i am having is
2005-12-27 00:00:00.000 does not = 2005-12-27 08:00:35.000.

Because I will never have more than one record on the same date I would like to be able to only compare the date. Example 2005-12-27 = 2005-12-27

Since the fields are 2 different field types, this is giving me a problem. Could someone please help. I have tried everything I know to do.

What I really need is the a way to format the datetime fields date into a string such as '2005-12-27'.

Hopefully what i have written makes sense.

Thanks

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SQL Date Comparison

Jun 27, 2000

Hi...

I have a problem comparing dates in SQL Server 7.
I want to find results where date1 = date2.

I am having problems becausing SQL is also trying to compare the time which
is included in the field value e.g. 03/04/00 12:01:32

So even if the dates are equal the time may be different so the results are not shown?

I've tried SUBSTRING, and CONVERT,CAST etc.. and still can't get it to work

Any ideas???


Thanks.

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Oct 23, 2003

Good day,

I am receiving garbage data from my other department as follows.

I want:

'12/05/03' for example.

I get:

'//'
'00/00/00'

And other garbage. All of which crashes the transaction because it cannot be converted to Datetime.

What I would like to do is something like this:

IF @v_date > '01/01/50'
BEGIN <-- statement will crash if bad data)

Something to trigger a Boolean (True/False) validation of the data.

I want to know if it is even a date before I run it through my block.

Any thoughts?

I don't want to add a new IF block for every bizarre thing they send me.

Thanks ahead of time.


PS - I guess I could just raise an exception and handle it in a block that way, but am still curious.

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Aug 25, 2007

 
I remember at some point I had some problem with this issue and I couldn't find something that suites a newbie.
The point that I was missing was that I couldn't pass the string representation of the date value to a query string. The key is to convert the string date to its equivalent datetime or smalldate .
For example imagine you'd like to select all Employees who where born on a specific date stored in a variable called myDate:
the BirthDay column in our Employee table has type smalldatetime
----------------------------------------------
 string myDate = @"06/06/1978";
....
SqlCommand comm = new SqlCommand("SELECT * FROM EMPLOYEE WHERE [BirthDay] = Convert(smalldatetime,'" +  myDate + "', 103))";
....
----------------------------------------------
Make suer that you don't miss single quotes around value of myDate in your query string.
For more info regrading the Convert function look at:
http://msdn2.microsoft.com/en-us/library/ms187928.aspx

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Nov 13, 2000

I'm having a problem with what should be a simple TSQL statement. I have a
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But if I type
select * from patient_medication where rec_status_date <> '11/10/2000'
or select * from patient_medication where rec_status_date != '11/10/2000'

The rows that have a value are returned, but none of the null values
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Jul 31, 2006

In my current job I am learning MS SQL - while having to write valid SQL statements. I need some help designing a query that checks hire dates for establishing participation for (something).

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1. WHERE Hire_Date < OCTOBER 1 of this current year
2. WHERE Hire_Date < OCTOBER 1 of previous year



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Example: IF @Type IN ('Workflow','All')

Thanks for the help in advance.

Rob

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Jul 20, 2005

HiI have a table that contains information that has start dates and enddates. They are stored in short date format.I have built a web page that initially returned all the information. Ithen want to return information spcific to todays date, where I useddim todDatetodDate = nowthen I didshTodDate = FormatDateTime(todDate, 2)which returned the date to a web page that was in the same format aswhat was in the access table.SELECT * from Events WHERE stDate = # ' & shTodDate & ' #;"This was fine beacuse it returned all events that started on that day.This doesn't help though because some events last a few days, so Itried the followingSELECT * FROM Events WHERE stDate >=#'&shTodDate&'# ANDendDate<=#'&shTodDate&'#;This still only returned events that started on the current day.Does anyone know how I can use <= or >= when comparing dates?ThankspuREp3s+

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Jul 20, 2005

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Jan 6, 2005

I have a stored procedure that is suppose to get all records that have an expiration date of today. My where clause is as follows:


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Mar 19, 2015

I am trying to use a date comparison in a statement using the year statement as well. Here is what I have:

Case [LastHireDate]
When YEAR([LastHireDate]) < Year(@EndYearlyDate) then '12'
When Month([LastHireDate]) = '1' then '12'
When Month([LastHireDate]) = '2' then '11'
When Month([LastHireDate]) = '3' then '10'
When Month([LastHireDate]) = '4' then '9'

[Code] ....

When I am looking at it [LastHireDate] is showing that red line underneath. The < symbol has a red line and @EndYearlyDate has a red line. I can not seem to get them to clear and am, wondering what I am missing. When I execute the error comes up that it does not like the < sign in there.

Here is the full piece that the Case resides in:

Insert _Test
SELECT
EmpNo,
PersonIdNo,
REPLACE(PersonTaxIdNo,'-',''),
LastName,
FirstName,

[code]......

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Jul 23, 2005

I have a datetime variable coming from my ASP.NET application that hasa time portion. I give my users the option to perform an equals,greater than, less than, or between comparison. The trouble comes inthe way the application builds the criteria string. The WHERE clausepassed in is in the format, "(start_dt = '2005/05/16 07:00:00.000')".What I want to do is only compare the date portion of start_dt to thedate portion of the passed in time. Manipulating the start_dt with thebuilt-in SQL functions isn't a problem, but altering the date passed infrom the ASP.NET would be a massive framework change in the app.Is there any way to only compare the date portions of both the SQLfield and the passed in value?Thanks.

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Oct 20, 2015

I need to take all records from table @A where ID = 1. Also i need to process the records with datewise from table @A. Here is the table structure

DECLARE @A TABLE (ID INT, ACCOUNT VARCHAR(10), EFFDT DATE)
INSERT INTO @A VALUES (1,'AAA','2015-10-01')
INSERT INTO @A VALUES (1,'BBB','2015-10-01')
INSERT INTO @A VALUES (1,'CCC','2015-10-01')
INSERT INTO @A VALUES (1,'AAA','2015-10-05')
INSERT INTO @A VALUES (1,'DDD','2015-10-01')
INSERT INTO @A VALUES (2,'AAA','2015-10-02')
INSERT INTO @A VALUES (2,'BBB','2015-10-02')
INSERT INTO @A VALUES (2,'CCC','2015-10-02')
INSERT INTO @A VALUES (2,'DDD','2015-10-02')

[code]...

how to achieve this in SQL query, i cannot use CTE or temp table as i need to use this code in another tool, it has to be single query, can use subquery or join would be better.

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Jun 9, 2014

I am having a problem in creating query for this exciting scenario.

Table A

ID ItemQtyCreatedDatetime
W001 CB112014-06-03 20:30:48.000
W002 CB112014-06-04 01:30:48.000

Table B

IDItemQtyCreatedDatetime
A001 CB112014-06-03 19:05:48.000
A002 CB112014-06-03 20:05:48.000
A003 CB112014-06-03 21:05:48.000
A004 CB112014-06-04 01:05:48.000
A005 CB112014-06-04 02:05:48.000

I would like to return the nearest date of Table B in my table like for

ID W001 in table B should return ID A002 CreatedDatetime: 2014-06-03 20:05:48.000
ID W002 in table B should return ID A004 CreatedDatetime: 2014-06-04 01:05:48.000

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Nov 23, 2000

Dear All

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Best Regards
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If ( select Name from inserted ) !=
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Examples:
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Excuse me, my English is not currently.

Thanks !

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Hi,

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Best Regards,
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:beer:

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