Visual Basic :: Add X Days To Date/time Field

Grouping By Date Where Date Field Is Date/time
I have an SQL7 database storing datetime data, and totaliser reading, new records are added every 5 minutes.

I have written the following sql to give me the the min and max totaliser reading for each day - which works fine - except that the resultant Date field is a text field not a date field so the order statement generates an incorrect listing if the data selected sarts in one month and ends in the next, eg.

select left(Date, 12) as Date, Min(Reading) as Day_Start, Max(Reading) as Day_End from Steam where tag_no = 2 and (Date <= '24-November-2005 00:00:00' and Date >= '22-October-2005 00:00:00') Group By left(Date, 12) order by Date asc

Is there another function I can use to extract just the date from the date/time field as a date data type?

I cannot alter the database as its structure is predetermined by the remote field device supplying the data.

Only Want Date Part Of Date Time Field
How can I using an SQL statement just reitrieve the date part of a database field.

The data is stored as 10 05 2001 12:31.

At moment sql is bringing back the whole field. For grouping purposes I only want the date ie 10 05 2003.

Any ideas??

Date Time Field
I have a table field that store date and time in the format of yyyy/mm/dd hh:mm:ss, how can i select the date only ?

Date & Time As Field Name
Hi all,

I have an application that reads the dbf file for data input, the application is working fine, except for some reasons it stops responding , means fails to read the dbf file.

The said dbf file contains two fields as Date & Time , the vb applications reads this fields first, is this the reason for system not responding.

Regards

JOhn

Date Being Put Into Field As Time
Hi,

I'm trying to add a date value to a field in access using SQL but it's showing up as a time.

Both the table and date field are being created at run-time.

The code used to create the "dDate" field is:
"ALTAR TABLE Table1 ADD COLUMN dDate DATE"
- This seems to create a Date/Time field just like any other.

The code I used to add a date value is
"UPDATE Table1 SET dDate = " & "01/01/2006"

I've also tried a date variable and a string variable formatting both as dates, not formatting either ...  No matter what I do, it just inputs a time value.

All this is being done from outside of Access using VB & SQL.

Any comments and/or instructions would be greatly appreciated.  Thanks in advance.

Paolo

ADO Changing Time And Date Field???
How can I update a "DateTime" field in table.dbf with a date time value that does not take on the format that is set in the Windows "Regional Settings"

My Regional Settings are for short Date yy/MM/dd

My code is a follows:
Dim rs As adodb.Recordset
Set rs = New Recordset

rs.Open "Select * From table.dbf", "filedsn=mydsn;", adOpenDynamic, adLockOptimistic

rs.AddNew
rs!Timestamp = Format(Now, "mm/dd/yy")
rs.Update
rs.Close

When I look in table.dfb the date is stored as yy/MM/dd not as mm/dd/yy

Thanks in advance

Jeremy

How To Detect A Date/Time Field ?
I need to know how to determine a Date/Time field from an Access database, rs!inputdate is a Date/Time field, I use RS.ADDNEW to create this record but I did not write anything in it. But following is not working:

rs!inputdate = ""
rs!inputdate = Null
rs!inputdate = 0
rs!inputdate = vbNullString

Please help .....

How To Erase Date And Time Field
I have 2 fields defined as DAT/TIME. Returned_on has a DATE and Returned_at has TIME. How can I erase them thru the application?

I am using Access data base in my VB6 application.

UPDATE Contracts SET Returned_on = XX, Returned_at = YY WHERE Cont_id = 1

What should I set my XX and YY to.

Date And Time In A Single Field
In a SQL table what is the format to insert the date & time in single datetime field through VB 6.0

Filling Date/Time Field With NULL
Shalom,

I have a Date/Time field in a Microsoft Access 2000 database and I need to fill it will nothing (NULL). Here is my current statement:

Code:
gtSQLStmt = "UPDATE TICKET_DETAILS SET" & _
" sched_dte = '" & Null & "', " & _
" alert_user = 0" & _
" WHERE index_num = " & Val(txtIndexNum)

StdLibDB.execute_sql_sub gtSQLStmt, adoConA
When I execute this code I get the following error:

"Data type mismatch in criteria expression"

(this is on the execute_sql_sub line which executes my sql of course)

How can I put a NULL or nothing in that Date/Time field?

GrayKnight

Addition To Date/time Field In Oracle
Hi Guyz,

Q1
Lets say i have the following data in the date time field..

6/25/2004 7:02:31 AM

How do i add another 8000seconds to this data in oracle?

Q2
And how do i search, for an example, give me all the list of data with 6/25/2005, no matter what time it is.
I tried using the like operator but it doesnt seem to work..

Any ideas?

thankx in advance

Clear ACCESS Date/time Field
The following code is a test to set a date/time field in ACCESS to a date and then try to set it back to a blank (clear the field). Setting the field to a valid date works ok, but when I try to clear out the field, I get a "Type Mismatch" error.

Does anyone know how to blank out a date time field from VB?

Code:
Private Sub Command_Click()
Set cndb = New ADODB.Connection

cndb.Open "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=c:master.mdb;Persist Security Info=False"

Dim rs As ADODB.Recordset
Set rs = New ADODB.Recordset
rs.Open "SELECT * FROM Shiplist WHERE [Order ID] = 'BL00004'", cndb, adOpenDynamic, adLockBatchOptimistic, adCmdText

If rs.EOF Then

Else
Debug.Print rs![Expected Ship Date]
rs![Expected Ship Date] = "9/2/2005"
rs.UpdateBatch

Debug.Print rs![Expected Ship Date]
'the next line will cause a "Type Mismatch" error
rs![Expected Ship Date] = "" 'trying to set the date/time field to a blank
rs.UpdateBatch

End If

rs.Close

Set rs = Nothing

cndb.Close

Set cndb = Nothing
End Sub
tia,
flynn

Date/Time Field - Select Returning Nothing
Hi all,

I have a vb app with an access 2000 db. The problem is that I have a field in the db called DateAtt where the type is Date/time (shortdate - dd/mm/yy). When I try to select values from this field vb returns a recordcount of 0.

I understand that you can enclose the date within 2#'s (date literal), but when I do this the recordcount is 0 even though the date entered exists in the db. This is because eg. the record 14/03/04 (in the db - dd/mm/yy) <> 03/14/04 (from the sql query mm/dd/yy).

sql = "Select DateAtt from Att where DateAtt = #" & dateEntered.text & "#"

Is there a way of getting around this problem and could you provide the sql for this? Could you use the date type instead of literals?

Also is there a way to select a date where the day is not known therefor bring back all records which have a month 03 and year 04. So in other words is there a way to put the % infront of the date selected (in this case just being the month and year). So it would look like %/03/04?

Thanks in advance!

Searching An Access Date/Time Field?
Good Morning.
I am having trouble searching an Access(2000) DataTime Field.

The field holds both the Date and Time: But I only want to search this field by the Date.

Below is my search string it returns no records. (Does not give an error, just no records.)

searchsql = "select * from slog where wdate=" & Chr$(35) & FormatDateTime(DTPicker2.Value, vbShortDate) & Chr$(35)

Select Statement With A Date/Time Field
Howdy!

I want to pull all records from earlier than 2 two days ago.
I am using Access97,with a Date/Time field, but I can not get the thing to work.

Here's what I have

Dim TimeLapse
Dim SQL

TimeLapse = Now - 2

Set adoMasterRS = New Recordset

SQL = "Select * from Master where RowUpdate >= '" & TimeLapse

adoMasterRS.Open SQL, db, adOpenStatic, adLockOptimistic

Thanx

Insertin Date And Time On Datetime Field
Hi everyone,

Do you guys know how to insert date and time values on a single SQL Server datetime field using ASP or VB?
I've tried using Convert but it doesn't seem to work... I always get error messages.

Thanks a lot.

Otavio

Comparing Date Time Stamps Field
I have a date time stamp field in my database. And i need to count calls for one day. So my sql statement looks something like this :
Code:
                Dim bdwsmtCon As New Odbc.OdbcConnection("Driver={MySQL ODBC 3.51 Driver};server=192.168.2.5;port=3306;database=bdwsmt;pwd=knicks24;uid=tmstms;")
                Dim bdwsmtCommande As New Odbc.OdbcCommand
                Dim bdwsmtReader As Odbc.OdbcDataReader
                Dim strSQL As String 'Select statment
                Dim curDate As String 'curDate
                Dim endDate As String 'end string for sql statment
                curDate = startDateTimePicker.Value.AddDays(dblStartDay).ToString("M/d/yyyy")
                endDate = startDateTimePicker.Value.AddDays(dblEndDay).ToString("M/d/yyyy")
                    strSQL = "SELECT Count(*) AS MyCount FROM wab_answers WHERE answerTime > #" & endDate & " 11:59:59 PM# AND answerTime < #" & curDate & " 11:59:59 PM# AND wabScreen=1;"
                    MsgBox(strSQL)
                    bdwsmtCommande = New Odbc.OdbcCommand(strSQL, bdwsmtCon)
                    bdwsmtCommande.Connection.Open()
                    bdwsmtReader = bdwsmtCommande.ExecuteReader(CommandBehavior.CloseConnection)

The error is the # # round my date and time. I tried to use ' ' around them but that just gave me 0 for the count. Any Ideas?

How To Insert In A Date/Time Field In MS Access
I always get the error: "Invalid operand for operator: <assignment>"

I tried '1997-01-01' or '19970101' or '01011997' or '01-01-1997' .. and many others with "/"

Nothing works ...

Ado (command) Updating Date/time Field
Hi,
I'm trying to update a field of type date/time to null value using sql query.

my sql query:
"Update jobs Set mydate.value = DBNull" ....

This doesn't work!
What do I need in this sql statement so that I can update date/time field with nothing (empty).
Thanks.

Activex Control For Date/Time Field
Hi,

Can anybody suggest me an activex control accepting Date and Time. For Date i found many Callendar controls(eg. sheridan) but i need a similar control for Time. All suggestions are welcome.

Thanks in Advance

Chandu

Returning A Date/Time Field To Empty
I am accessing a database in the following manner:

set db = OpenDatabase("c:Databasename.mbd", false)
set rec = db.openrecordset("tblName",dbOpenDynaset)
rec.MoveFirst
Do Until rec.eof
With rec
.Field("date")=vbNull
.MoveNext
End With
Loop

It continues to fill the date with "12/31/1899"

I can't figure out how to just delete the information in the field so that it is empty.

Jason Hatt

Problem Storing Date/Time In TEXT Field.
Hi,

I have an Access Table with a field called "VisitDate" and is a Text Field of size 50. I want to store current Date and Time in this field.

My program stores current date and time in a variable "ProgramDate" which is of Date DataType

I tried following code, but it generates this error:

Run-time error '-2147217887 (80040e21)'
The field is too small to accept the amount of data you attempted to add. Try inserting or pasting less data.

Code:
Dim myDateTime As String

myDateTime = CStr(ProgramDate) + " " + CStr(Time)

rsTempReport!VisitDate = myDateTime
I want to store data in this format, e.g: 23/9/2005 11:15 AM

Create Date/Time Field And Loading Default Value
I am trying to add some fields programmatically to a database using DAO. I need to load some default value to the date/time fields in order that they ar not null. Here is what I tried:

xs = ""
On Error Resume Next
xs = db.TableDefs("Department").Fields("begHH").Name
On Error GoTo 0
If xs <> "reciprocal" Then
db.TableDefs("Department").Fields.Append _
db.TableDefs("Department").CreateField("begHH", dbDate / Time)
db.TableDefs("Department").Fields("begHH").DefaultValue = "12:00 AM"
'db.Execute "UPDATE Department SET begHH= "12:00 AM" WHERE
begHH IS NULL", dbFailOnError
End If

It does not like the string of "12:00 AM" at all. Does anyone know what value I should put in the newly created fields. Thanks fo rthe help.

Store Date And Time In SQL Server Datetime Field
I wanted to store date and time (both in single field)
I tried following in order to store the date entered in text box in format dd/mm/yyyy

Please help

Thanks in advance
VIkAS

Excel Won't Accept Date Time Field From SQL Server
Hi

I'm workin on a project at the moment that requires that I can write the contents of a datagrid to an excell work book, I have most of the code sorted however excel does not show the date time fields pulled from the SQL server. Here is my code

Private Sub btn_dumptoexcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn_dumptoexcel.Click
        Try
            'Variables
            Dim ExcelApp As New Excel.Application
            Dim Wkbook As Excel.Workbook
            Dim Wksheet As Excel.Worksheet
            'Make the Excel Application visible
            ExcelApp.Visible = True

            'Get a new workbook and select the first sheet
            Wkbook = ExcelApp.Workbooks.Add
            Wksheet = ExcelApp.ActiveSheet

            Dim dt As DataTable = ds.Tables(dsTableName) 'Dataset name used to populate the datagrid

            Dim col As DataColumn
            Dim n As Integer

            'Add field names to each cell
            For n = 0 To dt.Columns.Count - 1
                Wksheet.Cells(1, n + 1).value = dt.Columns(n).ColumnName
            Next

            'Loop through the rows in the table and put the data into their cells
            Dim row As DataRelation
            For n = 0 To dt.Rows.Count - 1
                Wksheet.Range("A" & n + 2, "G" & n + 2).Value = dt.Rows(n).ItemArray
            Next

            'Format field names as bold and center
            With Wksheet.Range("A1", "L1")
                .Font.Bold = True
                .VerticalAlignment = Excel.XlVAlign.xlVAlignCenter
                .Font.Size = 12
            End With

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

       End Sub

Anyone got any ideas or see where I'm going wrong?

Thanx
Phil

Inserting NULL Value Into Date/time Field - Sybase -
i cannot insert a null value into a date/time field in a sybase database

Code:
'STORED PROCEDURE
sybObj.CommandText = "Data_Put"

         acci_insert(0) = "Null" 'GET IMPLICIT CONVERSION ERRORS
         acci_insert(0) = "Null" 'TRIED Null, NULL, DBnull.value, "", '' - nothing works

        'EXECUTE STORED PROCEDURE
        sybObj.Execute , acci_insert

The field has been set to allow Null values.

Edited by - AbbydonKrafts on 3/20/2007 6:21:53 AM

Setting Label.Caption From A Date/Time Field Value
Hi,

I need to set a labe's caption to a date/time field from a SQL database. I have setup the connetion string and all and I define this variable in VB:

Dim dtDate As Date
dtDate = rsInfo.Fields("UploadDate").Value

The Field "Upload Date" looks like this:

4/27/2001 11:12:09 AM

But my label's caption show up like this:

12:00:00 AM

How can I set it correctly????? Please Help,

Herick

Doubt In Fetching Time From Date Field From A Oracle Database Using VB 6.0
I'm using Oracle 9i as my database,in which I have a table with a Date field.Using VB 6.0 I want to fetch the time value from the date field in time format using a Select Query.

Date Format, Count No. Of Days & Highlight Date In Calendar
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt">Happen to visit this website accidentally and found that it’s very useful to VB beginner like me. <SPAN style="mso-spacerun: yes"> </SPAN>I have the following problems and would appreciate your kind assistance to enlighten me.<SPAN style="mso-spacerun: yes"> </SPAN>Attached is my file for your checking.<SPAN style="mso-spacerun: yes"> </SPAN></P></DIV>
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<DIV></DIV>
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Using The DATE To Transmit 2 Days Ahead Of Current Date (RESOLVED Thank You)
It seems simple, ive looked and looked, cannot find it. . .

basically what I need to do is transmit 2 days ahead of current date. . .

IE today is the 14th, I need it to auto transmit it to the 16th.

Its a pend out date on an account, I've got everything auto except for this feature. . . .

If I get in touch with a client, I want the account to automatically pend the account out for 2 days.

Thanks for the help, love the site, look for me more often, and be sure to purchase some of my award winning albums at a christian store near you.

Edited by - Bryan Duncan on 6/15/2004 3:52:58 PM

Check If Today's Date Is X Days Past Another Date
Hi, I am using Visual Basic 6.0 on Win 2000 environment. I am currently developing a video rental app as a school project. How can I check and see how many days past today's date is from a previously entered date?

For instance, 1- When a customer rents and item, I enter the customer's rental date (let's use 5/20/04 as an example), 2 - Then when the customer returns the item, I enter in the date returned (5/23 - today's date). How can I code this in VB to check for how many days late the item is?

I tried doing this, but nothing happens: (let's assume the variable dateRented is the date that was previously entered when the customer rented the item)

VB Code:
Dim todaysDate As DatetodaysDate = Now If dateRented > todaysDate Then MsgBox "This item is late!"End If

Any suggestions would be great. I appreciate it!

Date Function Minus Days From Date
I think the title says it all but I just want to minus daysTillLastSat from the date so that I can find out what the date of last Saturday was from any specific point in time and space well time mainly. Any ideas?

Code:
Function weekMaker() As Integer
For i = 1 To WeekDay(Now())
daysTillLastSat = daysTillLastSat - 1
Next i

If daysTillLastSat = -7 Then
daysTillLastSat = 0
End If

MsgBox "DAYS BACK TILL SAT + " & daysTillLastSat
MsgBox Now() - WeekDay(daysTillLastSat)
End Function

Start Date + End Date = Amount Of Days
Hi Guys

I have a simple question that i cant quite figure out, what i have is.

3 text boxes namley "Text2" "Text3" and "Text4" Text2 gets a start date say
01/10/2005 and text3 an end date say 30/10/2005 then in Text4 the amount of days displayed is 30. I just dont know how to get the 30 displayed in Text4.
It should be pritty easy but i have hit a blank, please help.

kind regards

Working Out A Date By Adding Days To Another Date
hi,
I have a date and number of days.
I'm trying to work out the date that comes out of adding the days to the original date (bringing into account months and end of year etc.)
would simply adding the days to the date do the trick (Date = MyDate + Days) ?

thanx

REQ Help: Calculating Elapsed Time From Date/time Began From Date/time Ended
I have four controls, two are Date-Time Pickers set for Date and the last two are text boxes set for Time with the "...If Not IsTime()..." validation.

It is the standard Date and Time problem began, Date and Time problem ended.

I am trying to calculate the elapsed time between these in "" DAYS "" HOURS ""MINUTES.

I coded this in Lotus Notes yet exporting my knowledge to VB is problematic.

Has anyone a code snippet of how to do this in VB - yes, I know about the DateDiff.

Many, MANY thanks!

VBA Registration Time Out Code By TIME Or DAYS
Stuck writing code for VBA need routine for registry time and count

If user has been online for more than 1 hour I wish add-in to be locked inaccessible - and only password (registration) will allow access.

Any ideas?

Every Record Has A Date Field. I Want To Find A Date And From This Date, I Want To Read Records To E
Every record has a date field. I want to find a date and from this date, I want to read records to eof. What is the code? - Thanks

How To Know The Date In <x> Days?
Is there a way with VB to know the date in <x> days?
Ex: What will be the date in 25 days? (day/month/year)
Thanks!
LD

Add Days To A Date
I have an application which the current date is displayed. I need to add 21 days to that current date. How is this done?

Judy

I Want The Date Of Some Days Ago...
Hi all.
i need something that give me the date of 5 days ago or 1 week...
there is some function like Datediff known for do this automatically?

example
now is 10/2/2003
i want another date automatically calculated 5/2/2003

thnk you all!!!!

Date {add Days To}
hi i was wondering if any1 can help me with this as i had many attempts my self

i have a txt box called txtdate = the user inputs any date i.e 04/03/05
i then have another txt box called txtdays = user inputs no. of. days the book is rented out for
finally i have a box called txtreturn = this box displays when the books is due back after da cmdcalculate button is clicked on.

basically the user inputs a date in2 txtdate and a number in txtdays, user then clicks on cmdcalculate n the retturn date is shown in txtreturn.

can any1 help me with this thanks

How Can I Now What Was The Date B4 44 Days
i have the today date =10/14/02 and i want to know what was the date before say 44 days is there any function that could help me?

thnks

30 Days After A Given Date?
how can i make a textbox with a date eg. 8/11/02 tell me if it is 30 days after that date using the computers clock?

any suggestions?

How Do I Add 7 Days To A Date?
Hello. I'm writing a program to simplify my business. Basically, you choose what you want to send-
1)letter to prospect concerning their resume
2)letter to prospect telling them when training meeting is
3)letter to prospect confirming their reservation
4)letter to city leader confirming prospect's reservation

Everything is pretty automatic, and for good reason. When this is finished, I'm distributing it to all representatives in the company.

I have them enter the meeting date as follows:
month (MM) in txtMeeting1
day (DD) in txtMeeting2
year (YY) in txtMeeting3

Then, it prints the date of the meeting in the letter to the prospect/city leader, plus the date of next week's meeting. I don't know how to accomplish the latter. Could someone please help me out? How do I take the date I enter and make another date that's exactly 7 days after that? I'm totally lost

Thanks
BLiNDPiG