I have a condition that will run depending if a field in the database is NULL. It will not run at all, and I tried various way to write it but none works so far
'not working
If assignee = DBNull Then
'not working
If assignee = null Then
'not working
If assignee = "" Then
If I write assignee to the page then the value of assignee will write if it has a value and nothing if it is null.
I have a field called w. The data type of the field is number. I use Access database. I cannot update a null value in the field.
r3("w")="5"
r3.update
I have a 'brief' field (varchar, 2000 characters) that I sometimes want to leave Null. Getting SQL Server to leave a field Null is no problem, but getting ASP to differentiate a Null field from a populated one is proving a real headache!!
How do you do this? I've tried:
If Len(objRS("f_brief")) = 0 Then... etc.
But it seems that Len(objRS("f_brief")) = 2 with a SQL Server database (though I've no idea why!!) Any ideas as to the best way to detect a genuinely Null (not just empty) field in a SQL Server database with ASP?
I am trying to update an integer field in an Access database with a null value (ie, make the field empty). It currently has an integer in it. Here's the code I've tried, which normally works for all other updates:
set rs = Server.CreateObject("ADODB.Recordset")
rs.ActiveConnection = sConnString
rs.Source = "SELECT * FROM tblFixtures WHERE FixtureID = " & strFixtureIDcurrent
rs.CursorType = 0
rs.CursorLocation = 2
rs.LockType = 3
rs.Open()
rs_numRows = 0
rs("ArticleID") = ""
rs("Result") = ""
rs.update
rs.close
set rs = nothing
However I am getting a Type Mismatch error on the rs("ArticleID") = "" line. Where have I gone wrong?
What's the best way to handle passing a null value to a number field in my Access database? Right now I am getting an INSERT INTO error when I am doing this. I tried doing the following:
Mon = Replace(Request.form("txtNewMon"),"","0") but it doesn't seem to work. Would you suggest doing an IF satement?
I have an interesting situation that needs to be addressed ASAP.
I am running a standard SQL Query in ASP to retrieve some rows/columns from a table that's on a SQL Server 2000 database. I put the results of that query into a RecordSet, and then use the GetRows function to push the results that are in the recordset into an array variable. In the query that I am running, 39 columns and 2 rows are returned.
The GetRows function appears to be working - the array variable is being created with the proper dimensions. However, the values of the different "cells" of the array are not showing up correctly. The first and the last column values for each row are correct, yet everything else in between is blank, empty, NULL, or whatever.
In other words: ArrayVariable(0,0) shows up correctly, ArrayVariable(38,0) shows up correctly, but everything in between is null.
I did a test on the RecordSet and discovered that it was the culprit - it wasn't being filled in properly. This is strange, though, because the select query that I run in the ASP code to create the recordset returns perfect results when I run it on the SQL Server 2K database.
I am using a Relational database for my site and i have the following tables:
FIXTURES, GAMEDATES
the fields in FIXTURES are:
GameDate
Home
Away
(All of the above are numerical fields)
the fields in GAMEDATES are:
DateID(integer)
GameDate(#Date Field#)
What i have done is in the GAMEDATE field in the FIXTURES table i have used the ID number of the date that i wish to assign to that record - using a LEFT JOIN to display the actual date that is pulled from the GAMEDATES table (That which corresponds to the relevant id used in Fixtures)
The problem is that in some of my code i want to display records using sql and sometimes in the where clause i use the following:
WHERE Fixtures.GameDate<=(Date())
obviously meaning WHERE GAMEDATE is LESS THAN or EQUAL to TODAY.
The thing is when i use the join it does not use the where clause and displays all of the records in the FIXTURES table.
Does any one know how to get around this, i have not received any error messages it just isnt displaying the right data
Im comparing values in a field while doing a loop if sAct<>myData(5,i) then At the end of the loop I make the value of sAct equal the current myData
This will work when comparing other fields withing my recordset (so I know the statement works) but it will not work for the field I want to compare. The only difference with this field is that it has null values. Could this be the problem? if so, how do I deal with nulls?
I have created a table. How do I limit the result of that table to only show the entries that have the "address" filled in. In Access here is the sql coding to acheive the results.
SELECT Dropoffs.City, Dropoffs.StateInitials, Dropoffs.AcceptedItems, Dropoffs.MoreInfo, zipcodes.Address
FROM zipcodes, Dropoffs
WHERE (((zipcodes.Address) Is Not Null));
How do I set this up in my VBSCRIPT page?
Here is my working page so that you can see what I am trying to acheive. When the page comes up you can type 45255 for the zipcode.
I try to select the not null value from the database in column comment.
select s.ques_no, s.task_no, s.goal_no, g.comment from step_tab s, gen_tab g where s.id = g.id and g.comment is not null
But it still return all the null value.
Can anyone please tell me why?
Besides that, why i can't increase the number that i selected from the database.
id_no = rs("id_no")
id_no = cint(id_no") + 1
Why the id_no never increase even i had "+1"?
I might be doing this wrong but I am modifying the body tag depending on what a recordset tells me.
It works fine if the value exist, but if it is returned null then I can't get it to work ...
I had set up the following 'trouble-shooting' code to determine how a certain value was being 'evaluated' for lack of a better term. The field "status" in this example has no value in it.
<%
status = RS("status")
If isnull(status) Then
response.write("status is null")
end if
if status = "" Then
response.write("status has no value")
end if
%>
The database field 'status' has no value in it. If I run the above trouble-shooting code, the first statement "status is null" will print out. If I remove the first if statement and use the second if statement 'if status = "" ...', the statement will NOT print indicating that the value <> "".
Questions: What is the difference between something not having a value and NULL?
Most importantly, what is the PROPER way to check for a field not having a value in it? In the past I have always checked for a 'no value' using double quotes.
I'm using the following code to, firstly erase any old logins the user has. Then to check whether the page has been idle for longer than 30 minutes or not. If it has been idle for longer than 30 mins then the user will be required to input their password again. However it's not working! Code:
View Replies View RelatedMicrosoft OLE DB Provider for SQL Server (0x80040E2F)
Cannot insert the value NULL into column 'ContactID', table 'ka0506a.ka0506a.contacts'; column does not allow nulls. INSERT fails.
/submitcontact.asp, line 15
What happened is i used to used MS Access and ContactID is an Autonmuber field, and now my connection is set to MS SQL so it's giving me this error, what's causing this error to happen and how can i change it ?
how to check any value in asp that it is null or not.
View Replies View RelatedI have a data entry form. If the user submits the form without entering any data, the record should be inserted with null entries for the respective fields.
But when i execute the INSERT SQL query with these null values, it gives me an error.
This is vat I am doing:
<%
.....
address = request.form("address")
if request.form("Age")= "" then
ageValue=""
.....
.....
%>
I use these values in SQL query
This is the SQL statement when the above is executed
" INSERT INTO tblStatistics (Age,address) VALUES (, aaa)"
Because of no value for age, the query is not gettin executed.
I dont want a 0, I want a nul entry (<null>).
Could someone throw some light on how to set the age field to null?
Can someone help with an error? It's a StoreFront store. right after the credit card screen is gives me the error. I get the following:
Microsoft VBScript runtime error '800a005e'
Invalid use of Null: 'replace' /ssl/SFLib/incGeneral.asp, line 85
--------------------------------------------
84 Function makeInputSafe(str)
85 makeInputSafe=replace(str, "'", "''")
86 End Function
-------------------------------------------
i had select the data from the database. The null value are returned.
How can i convert the null value to integer so that i can add some value for it??
Actually i try to use both of this statement but there's nothing come out...when i try to selecte the data in the database, the null value are returned
if rs("max_id") = "NULL" then
id_no = 1
response.write "id_no = " &id_no& "<br>"
end if
and
if rs("max_id") = "" then
id_no = 1
response.write "id_no = " &id_no& "<br>"
end if
I have 2 questions about SQL server. First, what should i do about allowing NULL values when designing the database? What difference does it make? And if I disallow NULL values, should i enter default values?
Second, when adding new records to database with recordset.addnew, what SELECT statment, cursor, and lock type should i use?
I've always used "SELECT * FROM Table" and adOpenStatic, and adLockOptimistic. This SELECT statement looks very inefficient to me, but I don't know what else to use.
I am updating a table depending on the user input that could be left blank for the numeric as well as the string field. I am getting an error if I do the following:
Dim a = null
sql = "update country set number =" & a
If I do ... sql = "update country set number = null", it works fine.
How can I use the variable to change the value to null.
I have set up a database, myDB, in MS Access. one of my Table, myTable, has columns Col1, Col2, ..., Col10. Depending on some scenarios, I insert some values in some (but not all) of the columns. Now I want to delete those records that their col3 is null or nothing is set.
I used col3= '' and col3=NULL in the below statement
objRS.Open "SELECT * FROM myTable WHERE col3 = '' ", myDB, , , adCmdText
but none of them works.How to delete a record based on Null value filtering?
I am new to using the filter property. When I try publishDate = '' I
get a type mismatch error
Code:
<img src="/images/thumbs/<% IF rsListProduct("AHFC_Product_ThumbURL") = null THEN %> no_image.gif <%ELSE%><%=rsListProduct("AHFC_Product_ThumbURL")%><%END IF%>" width=50 border=0>
Why does this not work? Field is for SURE null in DB if no image uploaded.
Is there an easier way to check if any of the fields returned in a select statement have null values? After running this command:
set rs = conn.execute("select A,B,C,D,E,F,G,H,I,J from SomeTable
where...")
I could check each field this way:
If IsNull(rs("A") Then
Response.Write("The value of A is null")
Else
Response.Write("The value of A is " & rs("A"))
End If
If IsNull(rs("B") Then
Response.Write("The value of B is null")
Else
Response.Write("The value of B is " & rs("B"))
End If
If IsNull(rs("C") Then
Response.Write("The value of C is null")
Else
Response.Write("The value of C is " & rs("C"))
End If
etc.
But is there a simpler way? Also, my "solution" probably wouldn't work if more than one recordset was returned...
I create a web site in a Windows 2003 server/IIS6, and I used asp pages to get ServerVariables. After I set FrontPage Extension 2002, some ServerVariables like LOGON_USER become null. Any body has an idea?
View Replies View RelatedHow do I go about testing to see if a value is not equal to NULL? isNULL provides the opposite functionality, but all my attempts at the former return a FALSE value.
View Replies View RelatedI have an add page, sending data too an access database, and what I want to do is, if their is a Null value (for example a user forgets to write in a name) then users will be redirected to a page called "wrong.asp"
the following are the add pages, the info is put in through add.asp, and sent through add1.asp. Add.asp is pritty big because there are 3 dynamic drop down lists, (D1, D2, D3)
Code:
I would like to update a field with the value of a "empty check box". The problem that my numeral field (kom1) in the db will be emty, instead of 0.
I need the value 0 becaus it's used by a SUM in an query.
I'm writing an application, and now an error message always pops up showing that one of the variable 'is null or not an object'
I wish to know what is the possible cause of this error message. I've defined the variable at the beginning of the program. So it there anything to do with the variable fail to get value from the form. The variable is the 'select' name of a drop down list.
How to do subj ?I tried:
date1=NULL
strSQL = "INSERT t (mydate) VALUES("&date1&")"
i tried with ' ' and without, tried "''", i tried allmost all variations &because i cant put NULL, i have error in my main strSQL.
Is there anything wrong with this query. Sometime it works sometime it doesn't.
SELECT SUM(A) AS sum FROM Table WHERE XX <> ''
Most of the time when it don't, this will be the error:
"Invalid use of Null"
At the moment i am checking that all the fields have been filled out, at the moment i am using the following...
if firstname = "" and surname = "" and address1 = "" and town = "" and
county = "" and country = "" and postcode = "" and phone = "" and email11 =
"" and email2 = "" and password1 = "" and password2 = "" then
is there a better more efficient way of doing this?
I've tried inserting this code, but it doen't work. I guess it must be something to do with the byVal keyword used in the constructor for the function?
Code:
'Handle a Null date
If (strDate = "" ) Or (Len(strDate) < 1) Or (strDate = Null) Then
fncFmtDate = "N/A"
Exit Function
End If