Check If Record Exists Database
How can i check if a vlaue exists ? Sample to get the idea: Code:
set con=server.createobject("adodb.connection")
con.open "Menu1"
sTempquery ="Select * FROM Voorkeur Where gebruikersnaam = '"& Request.Servervariables("LOGON_USER") &"'"
Set autor=Server.CreateObject("adodb.recordset")
autor.Open STempquery, Con
The idea is that if the "LOGON_USER" does not exist in the Dbase he must execute code. How can i do that?
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I have a database in which I have to on a daily basis enter the information for that day. I would like to update this on a bi-hourly basis to prevent any possible data loss.
Using INSERT INTO, I create a new table line. Using UPDATE, I get an error on the inital creation of the table line.I am really unsure how to check to see if that line exists or if there is an easier way around this.
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there is any way i can check if the database Exists. I mean from the code side. I dont want it to throw me any error thats the reason.
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I've got a form that adds a record to a database. What I want to do is on submit, look at the records in the database to make sure no value in a particular column matches what the individual is trying to submit.
More simply, Form A has a field called "collection" which inserts into the database column named "collection" I want to make sure that the value in the collection field hasn't been used.
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Using ASP with VBScript is there a clever way to easily check if a value exists in an array without looping through it?
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i have a textbox for user to put there loginid...and one button login valiablity...where user can click to check this userid is available...till here everything is ine...suppose between this another user registerd with same userid..and now first user will put this user id than it will get non avaliblity of this id.so in such case what should i do?
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We have two tables EmpProfile and holidaysrequest tables.
EmpProfile has fields
EmpNo
Firstname
Lastname etc
HolidayRequests has fields
EmpNo
FromDate
ToDate
holiday requests table stores the dates employees have booked as holidays.
I want to write a query which will be used by ASP page to display everyone
who have not booked 29th - 31st Dec as days off.
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I have built a page that lists all our databases, the
users connected to each database, and what application
they are using. Because these databases are moved, or
removed from time to time I need to check if the database
still exists before trying to query it. Otherwise I get
funny SID errors when it tries to process this command:-
Conn4.Open "Provider=OraOLEDB.Oracle;" & _
"Data Source=CD;" & _
"User Id=username;" & _
"Password=password"
Can this be done in ASP or should I be querying the error
collection or something?
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I populate a recordset and dump it into an array. How can I check if a value exist in the array? I want to check if the c_Member_mgr has a particular value or not?
Dim rs2
set rs2 = Server.CreateObject("ADODB.Recordset")
rs2.open sub_Emp_Source, Conn
Dim aSubordinates
If not rs2.EOF then
aSubordinates = rs2.GetRows()
'Close Recordset to use the new array with the 2 columns data
rs2.Close()
set rs2 = Nothing
'Declare Constants for the above SQL columns for better readability
'Use these Constants instead of referring to the array numeric indexes
Const c_Member_Mgr = 0
Const c_Subordinate = 1
Const c_EmpID = 3
Const c_EmpName = 4
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How can i check to see if an array (specifically a session variable, if it matters) exists or not?
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I want to check whether a particular table exists or not in a database as we check whether a particular record exists in the table using Count(*) function.I get the table name from the user and will have to check whether the entry that he has given is a valid one or not. how to do this?
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how to check whther subfolders/files exists inside a main folder using a filesystem object.
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I am working on a image gallery and am trying to show images from different websites. Before I display an image I need to know whether that image exists on the other server and only display it if it exists.
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Does anyone know how I can check to see if an image exists on another web host? I tried using the file system object but it didn't seem to work. I think my problem is that I have to check a URL instead of an actual file path to see if something exists there.
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I want to know how to search a database if a particular data is contained in it and then if the data is not there the page should go ahead to insert the data into the database and then redirect the user to another page but if the data is alraedy there it should go ahead a query another table where the user infomation where also stored.
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How do i relate to cookies? i mean if i want do to an IF statement to check if the cookie exists or something what do i write?
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Need to knnow how to check if a given network drive and folder exists.
i understand the File io system and how to check if a folder or a file exists.
PS. This would be a maped network drive.. i.e. 23232.23.4556 ( z: ) or enginering on 'werserverde' ( Y: )
Just some more to maybe help answer my question What I need it to beable to enter this "10.52.1.38~Library" into my serch box and have it check if it is valid or not. Code:
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I have a stored procedure that basically checks to see if a record exists Code:
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How can I check if a file exists on the client? I have a form which requires the user to upload a document from their computer. In the event they don't enter a valid path to the file the form does not submit. How can I check if the file exists and if it doesn't, provide a suitable response?
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I have an .asp page
that correctly queries a table and returns data if a 'job number' and
week ending date exist and the user can update the information that is
there. What I need to do is, if a record does not exist the page
needs to create one and then refresh/requery so the user can edit the
data. Any suggestions on how to accomplish this?
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ive got a bit of code to check if a file exists and it works if I use the full path ie "C:Inetpubwwwrootfile.txt" can someone advise me how to get it so I can use the relative path ie "file.txt" where the file and the code are in the same directory? Code:
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I'm wanting to do a simple controlled voting page. I too our webserver off anonymous and everyone who accesses the website is a domain authenticated user. I've already done some control structure pages based on Request.ServerVariables("AUTH_USER"), which works great. That's also how I would do this page, in my basic thinking.
My idea is to have an access database with two tables. One table will have the vote written to it and the other table will have the AUTH_USER written to it when the employee casts their vote.
I'm wondering how I would do a test against that table to see if their name has already been written to the table. So, if an employee votes already, when they go to vote again, their user logon would be tested against all entries in the table and if it exists, the vote would not be written and they would be redirected to another page that politely tells them they've already voted.
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I have a web page that creates dynamical forms, depending of what kind of product it regards. When the user has chosen a product, data is collected from SQL Server and a form is created.
Some forms contains check boxes and some not. My questions is: How can I check if someone has UNCHECKED a check box? Because if that happens, I want to delete that entry from the database.
Since a form just posts the value of a check box if it is checked, this causes a dilemma.
Any ideas, I can't be the first one having this problem?
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What I want to know is how do you check if a record exists in a MSSQL database. When a user visits a page in my ASP app it picks up thier username and uses it later on in the app.
What I want to know is how do I say in asp and sql , do I have a record in my database for user "john smith"? Then I can shoose my next action according to weather or not the user exists. Make sense? Code:
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You'd think this would be the most basic sql query in the world but noooooo!
I've tried this:
on error resume next
strsql = "SELECT * FROM " & session("TablePrefix") & CurrentTable
SET rs = conn.execute(strsql)
tableExists = 0
if (Err.number = 0) then
tableExists = 1
end if
But it doesn't return an error if the table doesn't exist. I'm searching on
the internet and hitting these long complicatred solutions involving the
database "shema". Surely there is a simple way of telling with one line of
sql if a table exists or not?
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I have a database with two tables:
Table 1: Human
Table 2: Exempt
I have created the following code for creating a record, which works fine. But what I would like to do is to check if I add a record on the "Human" table to verify if the record number already exists on the "Exempt" table. I have already created an error handler for it to check if it exists within the same table which works fine. But I can get to do the rest. I created a separate file where I created two functions, but I don't think I did it right. Code:
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I want to know how to check if the record I am about to add already exist? I would like to refer to the field of "icno" in the database. Code:
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I have a page where students can choose activities in a day... this then directs them to their timetable for that day.
However, if they go back to the choose.asp page and they have already registered, I redirect them to timetable.asp - because I don't want them to change their options.
I have their username stored as a session variable and it works fine for most students - however for the example student O'SMITH-JONESMark the page falls over.
I am using Dreamweaver's 'redirect if username exists' server behaviour. Code below... Can anyone tell me how to fix this so the code is not tripping up over the odd characters? Code:
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I have a server using a webapp built on classic ASP, and I use a library that creates/manipulates a datagrid-style display on the page.
I am displaying a large chart with sufficient data that it will likely be paged, and there are several columns that are toggles (using checkboxes for these, with the entire column having the same checkbox NAME, but different values depending on the record).
I have a piece of script that for loops through the records present on the page (determined by a collection of hidden form values), and then I need to check if the collection formed by a given column contains that value, something like the following (pseudo-code):
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how asp script when I want to check two different tables in database if data in table in different
example:
in table sent_sms where status sent but no receive_sms, i want insert status in status "Not OK"
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how to write to check verification valid email thru nslookup or mx record or dns record. Is it possible to do that. Is there any tutorial from sitepoint, previously found it but i lost the link.
example to check assume test@domain.com is not a real email, abc@domain.com is real email
how do u check it.
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i am getting a prob. in database id is a autonumber .i want to update value after retriving the va,lue from database .that is going on i mean retriving valuue from database but not update. Code:
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I have setup a database for user to upload product image and it name and desciption. Since there is no product upload by user, it will display this error:
ADODB.Field error '800a0bcd'
Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record.
/i-Metz/iMetzAdminADs.asp, line 295
Therefore i wrote this script to counter the error:
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