Solved

How do I seperate Date and Time text data within an access field (Split or remove)

Posted on 2004-04-08
12
292 Views
Last Modified: 2011-09-20
Help.  I need to break a specific field in a database up.  

My DB file has about 10 fields such as first,last,phone,address, etc. My date field contains both the date and time in the string. For example "1/1/2004 1:00am".  It contains about 400,000 records.  I would like it to read "1/1/2004", removing or separating the "1:00am" portions.

I need to separate the date from the time within that particular "Date" field.  I will then de dupe by date.  (I am presently unable to dedupe the file because the 'time' portion of the "Date" field causes the entire field to be unique).

How can I spit the field into 2 fields or remove the 'time' portion entirely?

I am an access novice so please write your instructions with patience and detail in mind.

Thanks!
0
Comment
Question by:wermy
12 Comments
 
LVL 11

Expert Comment

by:phileoca
ID: 10786987
in the query, create a field

Field:Left([tablename]![fieldname],InStr(1,[tablename]![fieldname]," ")-1)

that should return just the date portion, without losing the value in the record.

although u cod then do an update query and update
Yourfield to equal the new value in Field, but i would just use the new field as the value u need.

KT
0
 
LVL 32

Expert Comment

by:jadedata
ID: 10786989
Greetings wermy!

  DateOnly = Datevalue([DateTimeField])
  TimeOnly = TimeValue([DateTimeField])

I would recommend you KEEP the values together for storage and split the values as needed to test conditions
Otherwise you Double your storage requirements for that element.

What is the purpose of splitting this one field, and why are you depending on a Date to be part of a unique key?

regards
jack
0
 

Author Comment

by:wermy
ID: 10787032
KT,
I am about to try what you asked.


Jack,
The file is part of a sweepstakes.  Only one entry per day was allowed.  I need to remove any subsequent entries for the same calendar day.  I can't get the data creator to modify the data.  I never needed the time.  They added it without permission.

Wermy
0
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

 

Author Comment

by:wermy
ID: 10787047
KT Where do I place your code within the query?
0
 
LVL 32

Expert Comment

by:jadedata
ID: 10787105
UPDATE query the field

  UPDATE TableName SET MyDateField = DateValue([MyDateField]);

this will stripp the time seqment clear and leave date only...

change the names as needed ...

-j-

ps:  saw "Only one entry per day was allowed" and panic'd thinking I would have to come back to the question tomorrow to post the above suggestion..
{phew!}
0
 

Author Comment

by:wermy
ID: 10787178
J,

I guess i'll let my ignorance show.  

I have within theQuery1:Update window

~~~~~~~~
       Field:  Entry_date
      Table: Sweepstakes
Update to:
    Critera:
           or:
~~~~~~~~

Does your "UPDATE TableName SET MyDateField = DateValue([MyDateField]);"
 belong in the "update to:" position in the query?
0
 
LVL 32

Accepted Solution

by:
jadedata earned 250 total points
ID: 10787202
update to:  DateValue([Entry_Date])
0
 
LVL 27

Assisted Solution

by:jjafferr
jjafferr earned 50 total points
ID: 10787302
Hi wermy,

Besides what Jack suggested,
in your update query, use this to update your field:
Format([MyDateField],"MM/DD/YY")

I Hope this helps

jaffer
0
 

Author Comment

by:wermy
ID: 10791363
Thanks!

I was able to split it as Jack suggested.

Jaeffer I'm giving you 50 points for the added educational value!

I can't thank you all enough.

Wermy
0
 
LVL 32

Expert Comment

by:jadedata
ID: 10791593
That a fair and creative way of doing it wermy!
Thanx!
-j
0
 

Author Comment

by:wermy
ID: 10791731
So you noticed that it was 50 additional points to the original value.
0
 
LVL 32

Expert Comment

by:jadedata
ID: 10792080
i did, indeed... :)
0

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article is a continuation or rather an extension from Cascading Combos (http://www.experts-exchange.com/A_5949.html) and builds on examples developed in detail there. It should be understandable alone, but I recommend reading the previous artic…
QuickBooks® has a great invoice interface that we were happy with for a while but that changed in 2001 through no fault of Intuit®. Our industry's unit names are dictated by RUS: the Rural Utilities Services division of USDA. Contracts contain un…
In Microsoft Access, learn the trick to repeating sub-report headings at the top of each page. The problem with sub-reports and headings: Add a dummy group to the sub report using the expression =1: Set the “Repeat Section” property of the dummy…
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question