How To Change To Boolean Data Type??
Apr 17, 2007
my teacher asked me to do Access homework to change data type from Text to Boolean. Data in "Owned car" field show as Y or N
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so I click on Design View and change datatype of this field from "Text" to "Yes/No" , than when I saved it show a message
17179
When I back to Datasheet view, all data in "Owned car" field change to be "No".
How can I change data type to be Boolean type without deleting my original data??? I want them to show the same as Y or N.
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Oct 31, 2007
I need to create a user interface that will allow a boolean type search of a field. This would mean item1 AND item2 AND NOT item 3, item1 or item2, item 1 NOT item2, etc.
I've set up a combo box setup with the following script, but I can't figure out how to adjust it to allow the multiples.
Please advise if I should adjust this or try a differenmt interface format for my users.
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Option Compare Database 'Use database order for string comparisons
Option Explicit
Private Function AfterCombo(WhichLine As Integer)
Dim CBox As Control, TBox As Control, AndBox As Control, TBoxA As Control
Set CBox = Me("Combo" & WhichLine)
Set TBox = Me("Value" & WhichLine)
Set AndBox = Me("And" & WhichLine)
Set TBoxA = Me("Value" & WhichLine & "A")
TBox = Null
TBoxA = Null
Select Case CBox
Case "All", "Blank", "Not Blank"
TBox.Visible = False
AndBox.Visible = False
TBoxA.Visible = False
Case "Like", "Equal", "Less Than", "Greater Than", "Not Like", "Not Equal", "Not Less Than", "Not Greater Than", "In List", "Not In List"
TBox.Visible = True
AndBox.Visible = False
TBoxA.Visible = False
Case "Between", "Not Between"
TBox.Visible = True
AndBox.Visible = True
TBoxA.Visible = True
End Select
End Function
Private Sub Cancel_Click()
DoCmd.Close
End Sub
Private Function FormatList(ByVal List As String, FieldType As Integer)
Dim NewList As String, CommaPos As Integer, Word As String
NewList = ""
Do While Len(List) > 0
CommaPos = InStr(List, ",")
If CommaPos = 0 Then
Word = Trim(List)
List = ""
Else
Word = Trim(Left(List, CommaPos - 1))
List = Trim(Mid(List, CommaPos + 1))
End If
If Word > "" Then
Select Case FieldType
Case DB_TEXT, DB_MEMO
If InStr(Word, """") > 0 Then
MsgBox "Don't type double-quotes in the list"
End
End If
Word = """" & Word & """"
Case DB_DATE
If InStr(Word, "#") > 0 Then
MsgBox "Don't type '#' in your dates"
End
End If
If Not IsDate(Word) Then
MsgBox "Your list contains non-date characters"
End
End If
Word = "#" & Word & "#"
Case Else
If Not IsNumeric(Word) Then
MsgBox "Your list contains non-numeric characters"
End
End If
End Select
NewList = NewList & "," & Word
End If
Loop
NewList = Mid(NewList, 2)
If NewList = "" Then
MsgBox "Your list needs a valid value"
End
End If
FormatList = NewList
End Function
Private Function MakeNull(C As Control)
If Len(Trim(C)) < 1 Then C = Null
End Function
Private Function MakeSQL(WhichLine As Integer, FieldName As String, FieldType As Integer) As Variant
Dim CBox As Variant, TBox As Variant, TBoxA As Variant
Dim Condition As Variant, Delim1 As String, Delim2 As String
CBox = Me("Combo" & WhichLine)
TBox = Me("Value" & WhichLine)
TBoxA = Me("Value" & WhichLine & "A")
Select Case CBox
Case "Like", "Equal", "Less Than", "Greater Than", "In", "Not Like", "Not Equal", "Not Less Than", "Not Greater Than", "Not In"
If IsNull(TBox) Then
MsgBox "You have left a parameter blank for field [" & FieldName & "]"
End
End If
Case "Between", "Not Between"
If IsNull(TBox) Or IsNull(TBoxA) Then
MsgBox "You have left a parameter blank for field [" & FieldName & "]"
End
End If
End Select
Select Case FieldType
Case DB_TEXT, DB_MEMO
Delim1 = """"
Delim2 = """"
If Not IsNull(TBox) Then TBox = QFix(TBox)
If Not IsNull(TBoxA) Then TBoxA = QFix(TBoxA)
Case DB_DATE
Delim1 = "#"
Delim2 = "#"
Case Else
Delim1 = ""
Delim2 = ""
End Select
Select Case CBox
Case "All"
Condition = Null
Case "Blank"
Condition = " Is Null"
Case "Not Blank"
Condition = " Is Not Null"
Case "Like"
Condition = " Like """ & TBox & """"
Case "Equal"
Condition = "=" & Delim1 & TBox & Delim2
Case "Less Than"
Condition = "<" & Delim1 & TBox & Delim2
Case "Greater Than"
Condition = ">" & Delim1 & TBox & Delim2
Case "Not Like"
Condition = " Not Like """ & TBox & """"
Case "Not Equal"
Condition = "<>" & Delim1 & TBox & Delim2
Case "Not Less Than"
Condition = ">=" & Delim1 & TBox & Delim2
Case "Not Greater Than"
Condition = "<=" & Delim1 & TBox & Delim2
Case "In List"
Condition = " In(" & FormatList(TBox, FieldType) & ")"
Case "Not In List"
Condition = " Not In(" & FormatList(TBox, FieldType) & ")"
Case "Between"
Condition = " Between " & Delim1 & TBox & Delim2 & " And " & Delim1 & TBoxA & Delim2
Case "Not Between"
Condition = " Not Between " & Delim1 & TBox & Delim2 & " And " & Delim1 & TBoxA & Delim2
End Select
MakeSQL = " And [" + FieldName + "]" + Condition
End Function
Private Sub OK_Click()
Dim Where As String
Const ObType = "Form"
Where = Where & MakeSQL(1, "Lyrics", 10)
Where = Where & MakeSQL(2, "TrackTitle", 10)
On Error GoTo OKCApplyError
If Where <> "" Then
Where = Mid(Where, 6)
DoCmd.OpenForm "MasterFormQuery", , , Where
Else
DoCmd.OpenForm "MasterFormQuery"
End If
OKCExit:
Exit Sub
OKCApplyError:
MsgBox "Error " & Err & " opening " & ObType & Chr$(13) & Chr$(10) & Error
Resume OKCExit
End Sub
Private Function QFix(ByVal X)
Dim P As Integer
If IsNull(X) Then
QFix = Null
Exit Function
End If
P = InStr(X, """")
Do While P > 0
X = Left$(X, P) & """" & Mid$(X, P + 1)
P = InStr(P + 2, X, """")
Loop
QFix = X
End Function
Private Sub exitselectform_Click()
On Error GoTo Err_exitselectform_Click
DoCmd.Close
Exit_exitselectform_Click:
Exit Sub
Err_exitselectform_Click:
MsgBox Err.Description
Resume Exit_exitselectform_Click
End Sub
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Nov 10, 2007
I'm using Access 2002 and need to increase some field sizes, some by increasing the maximum number of characters and others by changing from Text to Memo. When I try to do this I get the message "Microsoft Access cannot change the data type. There isn't enough disk space or memory"
I have two 320GB hard drives and 4GB of RAM and the Access file is a mere 280MB. Can anyone please explain the problem and tell me how to achieve my objective?
Roger
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Jan 26, 2007
Does anyone know if its possible to change the data type of a field from "Text" to "Number" by using a macro?
thx
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Sep 26, 2006
Hi,
I am trying to import an excel spreadsheet into Access2000 using the import wizard.
I choose my XLS file, I say whether or not the first row contains headings, (no is the anwser).
Then I want to change some of the fields to data type of memo from text, but all I can see if Field 1 and data type option is blanked out.
If I click or double click on another field it doesn't change.
so I cannot change the datatype of a field..
do you know why, and how I can fix this ?
The reason I want to do this is one of the rows in excel has 300 characters, and the text field in access only allows 255.
regards,
Jamie
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Feb 8, 2012
I use Access 2003. I've set the Data Type on a field name to = Percentage
I've tried to use all - Field size types
I want to enter in 50 in the table and have the output be 50% currently it goes to 5000%
Is there anything i have to add in the Validation rule to make it show the exact value?
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Dec 20, 2006
I'm a bit of a newbie, so lets just get that out of the way....
I have a field in a table that was originally a text data type. I want to change it to a "lookup" data type using the lookup wizard. However, Access doesn't allow me to do this and prompts me with "You can't change the data type....its part of one or more relationships...". But there are no relationships? There may have been previously, but I've deleted them all from Relationships window.
This has happened several times now. I am in the process of designing the database and have been changing my mind about data types when I realize that I can use a lookup data type. The only fix I have found is to make a copy of the table in question and then change the data type of the problem field. Unfortunately this screws up my forms...which is a pain.
Why would Access say that there are relationships in the relationships window when in fact there are none?
I've attach a copy of my db. The field in question is located in the "Activities" table. The field name is "ACTIVITY_NAME". I am trying to use a lookup from the activityNames table using the "ActivityName" column.
Thanks for any help in this matter.
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Hi! I have a problem to build Pivot table in Excel 2003.
I’m creating this table base on the “External Data” which is a MS Access 2003 table.
The table has 50 fields and about 500.000 records. (This is the reason, I can’t just export table to Excel and then do pivoting). One of the fields of this table has a “text” type but stored numbers. Excel does not allowed me do Sum or Max function with this field – it needs to have Number data type.
I receiving this table “from outside”, so I can’t get the right data type from the beginning. If I’m trying simply opening the table, before, using as a data source for Pivot Table, in Design mode and just change data type from text to number, I have an error: "Microsoft Access can't change the data type. There isn't enough disk space or memory."
Any advice, how to change Data type in existing table using queries or something else what can help me to solve this problem.
Thank you very much at advance.
Alec.
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There is a 3rd table which I want to use to link both of these tables, but in table 3:
table 1. prod_code = table 3.item_code, and is a long integer. and table 2.prod_code = table3.item_code_prnt, also a long integer.
I need to be able to use table 3 to correlate data from tables 1 and 2.
I suspect I need to use Clng or similar but am unsure how to apply it.
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DATABASE PAYROLL - Copy.zip
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I have a table with about 300,000 records. About ten fairly small fields per record. I am trying to change the length of a text field from 25 to 40 characters, and I get the error message, 'MS Access can't change the data type. There isn't enough disk space or memory'.
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QUESITONS:
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