Question

delphi ADOdataset format date from sql

Asked by: gowerman

Hi,

I use sql 2008 and delphi6. I retrieve data using ADOdataset and then display in DBGRID.

Problem is that data is in format yyyy-mm-dd and I want opposite dd-mm-yyyy.
I know you can change that using properties of dataset "displayformat" but I don't have this tab in properties. I have this option for other columns but no for that one.
Data type in dataset is  TWideStringField.

Is there any way to change format date

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Asked On
2009-09-04 at 01:49:40ID24707086
Tags

delphi

,

ADOdataset

,

SQL

Topics

Delphi Components

,

SQL Server 2008

,

Delphi Database

Participating Experts
3
Points
500
Comments
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Answers

 

by: dtoddPosted on 2009-09-04 at 12:16:22ID: 25262509

Hi,

In SQL
convert( varchar( 10 ), datefield, 105 )

see
http://msdn.microsoft.com/en-us/library/ms187928(SQL.90).aspx

HTH
  David

PS I normally prefer to do this in the presentation layer ...

 

by: gowermanPosted on 2009-09-07 at 07:00:12ID: 25275110

I have problem to implement that command
I have database expense and in that database I have table expenses and in that table is column expdate that i want convert.

Can you assist me with that

thanks

 

by: senadPosted on 2009-09-08 at 14:28:20ID: 25286342

Use the field editor of the ADOTable.
Since the field is probably allready date/time type in the field editor set the
format the way you wish (dd-mm-yyyy).

 

by: senadPosted on 2009-09-08 at 14:37:15ID: 25286415

sorry didnt read properly...
Data type in dataset is  TWideStringField ?
Why dont you change it to datetime ?
You will run into trouble sooner ol later....
Otherwise you will have to convert datetime into string
http://www.delphibasics.co.uk/RTL.asp?Name=DateToStr

 

by: gowermanPosted on 2009-09-08 at 23:48:32ID: 25288761

I did that but then I can't open dataset.

 

by: senadPosted on 2009-09-09 at 13:39:42ID: 25295327

That is because you have to remove the field from the dataset completely (first set table to active=false) and then add the field again.Also if the grid references that field you must first remove it from the fields editor.

 

by: gowermanPosted on 2009-09-11 at 01:43:00ID: 25307593

If in this code I change TWideStringField to TDate I got error Class TDate not found

  object ADODataSet1: TADODataSet
    Connection = ADOConnection1
    CursorType = ctStatic
    CommandText = 'select expdate2 from expense'
    Parameters = <>
    Left = 144
    Top = 296
    object ADODataSet1expdate2: TWideStringField
      FieldName = 'expdate2'
      Size = 10
    end
  end

                                              
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by: acperkinsPosted on 2009-09-11 at 05:22:47ID: 25308615

Change this:
select expdate2 from expense

To:
select CONVERT(varchar(10), expdate2, 105)  expdate2 from expense

No points please.

 

by: gowermanPosted on 2009-09-11 at 06:32:19ID: 31624839

Thanks

Sorry but I gave you points. It takes me really long time to sort that out. On internet is a lot of talking about that but nothing that really help no example for lamer like me

 

by: acperkinsPosted on 2009-09-11 at 15:36:46ID: 25314049

>>Sorry but I gave you points. It takes me really long time to sort that out. On internet is a lot of talking about that but nothing that really help no example for lamer like me<<
You should have awarded David the points here. http:#a25262509. See here how to change it (from the EE Guidelines):
<quote>
I accepted the wrong solution. What do I do?
Click the Request Attention button, and ask the Moderators to change the grade for you.
</quote>

 

by: dtoddPosted on 2009-09-11 at 17:22:19ID: 25314490

Thanks Anthony.

20120131-EE-VQP-002

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