im trying to join two tables together, (this messaging system) and im having trouble with the query.
Select Message_ID, Firstname, Surname , Subject , Message FROM messages, guardian_users INNER JOIN messages ON guardian_users.User_ID = messages.Sender_ID WHERE messages.receiver_ID = 3
and im getting this error: #1066 - Not unique table/alias: 'Messages' (joining tables Messages and guardian_users)
I am having major problems with creating my tables and populating them.The problem for the creating seems to lie when I try to create my table named WeeklyUnitStaffRota. I get the run time error 2147467259(80004005) No unique index found for the referenced field of the primary table. This has only started happening as I have been tinkering with my tables to get them to populate properly.I seem to have a problem when I have two columns with the same info but relating to a different college ie two MSC being run at 2 different colleges.[code]...
View 1 RepliesIn my app, I connect to a table to get the next unique id (t_IDs). The code basicly looks up a specific table name and returns the next value. This is fine in testing, but the application is going to be used between multipul sites. I can see an issue where this may cause the app to slow down while it waits the next id before saving all the data to another table.
My question is, Is there away to set a SQL trigger to go and get the next id value and update the record when a new record is created? BTW - I did look at the uniqueidentifier option (NewId()) but the Id is too long. I need 1,2,3,4 etc.
currently, what i want to do is, add a column in a table "default" during runtime. Well, I've got that covered already.
The problem is, the column names are actually taken from the users input through a textbox or drop down list and of course, if the same column is added already in the table, it generates an error since it has to be unique.
That is why i wonder if it is possible to know if a column already exists without viewing the form which contains the grid view of that table?
Is there a quick way to put unique value to column in a table? Assuming I want numeric values starting from 0.
View 4 RepliesI am using vb.net code and sql server 2005. I have textbox in my application which is linked to a sql column. Now I want to check that it should not insert any duplicate record in table. I mean everytime it insert in table the value should be unique. data is inserted in table on button click.
I am using objectdatasource for sql connectivity and FormView for dataentry.
creating unique IDs for each row in a table, to avoid duplicates when inserting the data to a server. The table looks like this:
+--------------+----------+------+-------------+
| brikkenummer | tid | post | anvendt_tid |
+--------------+----------+------+-------------+
| 3086360 | 09:43:02 | 98 | 09:43:02 |
[code]....
"Brikkenummer" is the number of a device that each person carries with him/her, and "tid" is the time the runner has passed a specific post. The post he/her has passed is described in the column "post".Out of these three columns, is it possible to generate some kind of unique ID? The ID that is generated have to be the same if a row is displayed twice or more, to avoid duplicate entries.
how do i create restrictions whereby there cannot be two similar username in the table, while registering? i am using SQL server.
View 3 RepliesI'm developing a policy administration system and I need to generate a unique policy in this formart
RP000000/HH
Where R is the Region i select from a Combobox, P is the product the client chooses and the auto generated six digit number and HH is the hour when the record was entered in the system. I want the auto generated number to be the ID in my ClientDetails table in my DB.Here is my code of what I have done so far.They want to be able to tell the region and the product by just looking at the policy number.
Private Function PolicyNumber(ByVal intRegion As Int16, ByVal intProductCover As Int16) As String
PolicyNumber = intRegion.ToString & intProductCover.ToString & "000000" & "/" & Hour(Now).ToString
End Function
[code]....
How do i write into my code an error message to pop up once the user of the interface tries to enter in one more item than the maximum number alowed? Here is the code i have so far.[code]...
View 5 RepliesI have a database, 3 or more tables and a one of them with 3 or more columns.In this table i have ID column, Name Column, Date Column etc.I like to select one record for printing and give to the person one or more Receipt of payment (bill).But every time i like the number of Receipt to be unique. For all persons in my table and all payment.
View 1 RepliesI am creating a simple VB.NET WebBrowser to automate and simplify navigation of a web site. However on certain pages i get the following popup message. This is telling me about an error which is on the Web Site itself and thus out of my control.
Is it possible to block these popups from my application?
The application is for personal use, so auto-clicking yes would be an acceptable option.
am writing this program as for an assignment. How can i make it so that these error messages dont show up when the train method of commuting is selected? This error message is related to the car method of commuting and shouldnt pop up. My book dosent show me anything on how to avoid this.
View 5 RepliesI have a small windows application that gets word documents from a source folder, prints the documents and moves the documents to a destination folder.
[Code]...
UPDATE 2: I did not mention that I do not get the error below in Chromium, but I do get it in IE8.
UPDATE 1:
Response Headers:
HTTP/1.1 200 OK
Date: Fri, 20 May 2011 15:40:23 GMT[code].....
Why does that happen and how can I stop the error message from appearing?
I tried to run this on a local instance of sql-server and sadly it worked!!!now I know that the code is right and there is some kind of DBA restriction I need to find (and ask the DBA to remove)
using System;
using System.Collections.Generic;
using System.Text;
[code].....
' OK button
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
Dim con As New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data
[Code].....
soo basicly this part of the script is linked to an access database and i have 4 if statements which are meant for a login form i want to make it so that only 1 error message comes up, basicly if someone leaves the log in form blank and clicks log in it will say "please make sure the userid and password are between 5 and 16 characters long", and because it dont match anything in the datase it says " u got it wrong fuck off". basicly i want it to say please make sure the userid and password..........." and not show the "u got it wrong fuck off".
Can anyone give me some easy to understand exception-handled error messages, like this:
Catch parameter As SqlException MsgBox("Unable to save record due to invalid parameters.", MsgBoxStyle.Information, "Unable To Save Record")dbConn.Close()for the following events:
- During database connection error
- Error occurred uring saving, deleting
- Unable to load data from database
Kindly include what kind of exception that would be as well.
I want to use spy++ or Winspector But from what i Read they Dont work on windows 7 64bit Correct ? Im trying to read WM_COMMAND Messages from a App.And whenever i Select 'Log Messages' And find the windows etc.Nothing show's up. Is there a alternative ?
View 3 Replieshere I am again I have written a small class called 'Messages' that holds the user messages.The case is that I am not being able to import it. Here it is:
[Code]...
I keep having this error coming up. Im retrieving messages from outlook. But it bring up this error.
View 4 RepliesI am getting 6 unused local variable error messages. If I comment out the variable, I get en error because it really is in use. I tried re-building project.
error
Warning 2 Unused local variable: 'sqlCustomerInsertTicketConn'. C:UsersJeffDocumentsVisual Studio 2008ProjectsJeffComputersPOS1JeffComputersPOS1Module1.vb 1741 17 JeffComputersPOS1
For testing purposes, I write a lot of alerts and error messages into a .txt file (some 15 entries per second). At the end of the day, the txt file becomes very large. I am now getting confronted with data loss in my application (threads indicated as being busy). Could it be that my entries in the Log.txt are slowing down my application to the point that the latter becomes unstable ?
View 2 RepliesI am using VB .Net to access the eBay API and store all completed orders in a database. This database is then fed into a proprietary shipping system, which can not handle an order number larger than 20 characters. eBay returns an order number like so 230407279314-680141236013 which is too long. The order number is always 12 numbers a hyphen and 12 more numbers. What I need to do, is turn this (the result can be alpha numerical) into a shorter, unique order key to store in my database alongside the true orderId (so that this can be referenced by the shipping software instead of the actual order number). The reason for the 20 character limit is the barcode algorithm used. Is there any way to achieve this in VB .Net 2010? This number can be anything unique, so long as it does not exist already (even a good uniqueid function would work, but I would have to query the database to make sure it isn't taken)
View 2 RepliesI'm using the datagridview. This is the sample data:
[Code]....
How do I parse through the grid to rename the duplicate values in a particular column (in this example it's the l_name field) into such a format?
[Code]....
I'm using vb.net on vb 2005, I create datagrid view that when i click search button on the main form. It will show datagrid view that I want and when i click OK to select any record, the selected record will show on the desire text box in the main form. The problem is the record i choose is record no. 5 of all 10 record but the Bindingnavigator tools bar show that it's the first record of all 10 and when I click Next record arrow, the error message show that the 'PK column name' is unique and the 'value of the PK from my selected record' is already exist. [Code]
View 1 RepliesI have this error, error Column 'Item ID' is constrained to be unique, what do I have to do to change it and the code
View 5 RepliesI tried installing my app in another computer and found out that a lot of error messages keep popping up. What can i do to bypass these error messages? something about jit debugger or sumthing. Can i compile the app in such a way that these errors wont pop up?
View 19 Replieswhenever my program crashes at college, an error message pops up in a window which tells me why the program crashed and points to the line of code which made the program crash. I have recently taken the program home to finish on my own computer but now whenever it crashes nothing pops up to tell me why it has just crashed.
View 1 RepliesI need help for error messages for senerio like.... If i onli allow user to enter only numeric. And if i onli allow user to enter text start with "DM"...
View 10 Replies
