Get Proper MySQL Command To Work In 2010?
May 15, 2012
I have an application developed in VB.NET 3.5 2010 with MySQL as Database server.I need to generate a report type on on a form datagrid View.In the table i have fields as below
Reviewed_By - varchar
Stage - varchar
Review_Status - varchar
[code]....
I Need to retrieve the data to a dataset in below format Reviewed_By are repeated in the table, so i need only 1 cell to be filled by the data and the other empty.I used the below SQL code which worked well at MySQL prompt
SET @PrvSupervisor='';
SELECT IF(@PrvSupervisor=Reviewed_By,'',@PrvSupervisor:=Reviewed_By) Reviewed_By,Stage,sum(Review_Status='Int_Approved') as Approved,sum(Review_Status='Retake') as Retake,COUNT(*) AS TotCount,GROUP_CONCAT(Shot_Num) as ShotsList FROM ShotTable WHERE DATE_FORMAT(Review_Date_Time,'%d/%m/%y') LIKE '10/05/12' AND (Review_Status='Retake' OR
[code]....
In the above result as the last 4 rows are from Person2, so only 1st record of that person is having data remaining 3 are empty.but when i used it from VB.NET i am getting below error.
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ':=Reviewed_By) Reviewed_By,Stage,sum(Review_Status='Int_Approved') as Approved,s' at line 1
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Dec 29, 2011
Imports MySql.Data.MySqlClient
Public Class Form1
Dim myTime As Date = TimeValue(Now)
Dim myDate As Date = DateValue(Now)
[CODE]..................
It'ss not running the cmd2.executenonquery. I've tried many different things such as opening a different connection and yet it still doesnt run that line of code, but it'll run the message box in the if then statement. So I assume it's something to do with the connection somewhere. I've also tried using try and catching the error. nothing. So the problem is that its just not running query2.
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May 31, 2010
Is it possible to execute a command like this?
select * from tbl where col1=somefunction(@param1)
or will the parameter throw off the function? I have been unsuccessful in getting the command to work so far.
Please let me know if this needs any further explanation
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May 6, 2010
It it possible in vb.net to run a MySql command like you would do in MySQL or SQL? like insert and update statements and also to create a table in the db?
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Jun 21, 2012
What i have going on, is i have a MySQL connector as a resource on my application, and im basically trying to connect to my MySQL server, to either a) register a new account, or b) check that the account exists and they are premium, and login, Now what i have run into problems with is: My MySQL Database Name has a _ in it which VB is not allowing for some strange reason.
The code i am using is below
Imports MySql.Data.MySqlClient
Public Class Form1
Function UpdateRecord(ByVal query As String) As Integer
[CODE]...
How i can allow the _ into the application, because the only databases that don't have a _ in the user or dbname are a) Paid ones which i DO NOT have the money for or self hosted ones, i cannot leave my computer on 24/7
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Oct 28, 2009
How can i check if a value exists in mysql lets say if user: "Nick" exists."SELECT CHECKIFEXISTS (Value) FROM..." ???
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Aug 24, 2009
how to create a mailbox but it seems like im stock cause i dont know the correct syntax. Thats the table inside my database that handles the messages function. Im Logged in as NIXZ. What will this command return i mean it contains multiple variables:
[Code]...
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Oct 28, 2009
How can i just add a string in a field? its text = "AAAA"and i want to add ";BBBB"How?the result should be text = "AAAA;BBBB"
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Jan 15, 2012
i have a table named Tuition with fields:
[Code]...
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Jan 28, 2009
I can't figure out how to update a field in a MySQL db using MySQL Connector Net 5.2.5. Can anyone show an example code?
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Feb 19, 2011
I want a proper hh:mm:ss formatted duration, but I cant seem to get it right. I have ran through a good dozen attempts and things just arent working.
timer
Public dtStartTime As DateTime
Public tsElapseTime As TimeSpan
Public Sub tmrStartTime()
[code]....
Calling tmrStartTime sets the start of the timer, and tmrGetTimeSpan should report back the proper hh:mm:ss. For example, 11 elapsed seconds should look like 00:00:11, or 65 elapsed seconds should look like 00:01:05.
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Feb 27, 2011
I am building a vb.net application for a client, and there is a problem. I am connecting to a mySQL server, and using the UPDATE command to update certain fields to the specified values, however, once I run this code, the fields on the mySQL server turn EMPTY. Here is my code :
Sub updateresidents()
'MAKES NO SENSE; UPDATES EMPTY FIELDS ON mySQL SIDE??!!!!!!!!!!!!!!!!!!
Dim connection As MySqlConnection
[Code]....
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Feb 14, 2010
I cant find whats wrong with this, all I know is it could be the arguments, maybe they are in the wrong order, I dont know... it doesn't pop up any error, it executes the process but nothing happens.
[Code]...
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Oct 26, 2011
VS 2010 [RESOLVED] Proper location for Global Constant?
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Jan 4, 2011
I've been programming for many years in many languages and I've seen the variable declarations conventions change. With VS 2010 I've noticed you don't have to declare the variable type. I work alone so I can use any method I want. But, someday I may want to sell some of my code so I would like to keep my programming conventions current.
In VS 2010 which of these would be considered the best convention?
Dim srtFirstName = "Bob"
Dim strFirstName As String = "Bob"
Dim FirstName = "Bob"
Dim FirstName As String = "Bob"
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Sep 12, 2009
I'm trying to create this select command against Access Database----Keeps giving me error saying operator is missing I just can't seem to figure it out
da2.SelectCommand.CommandText = "SELECT RecordList.RecSchNo, RecordList.RecTitle, RecordList.RecReasonCode" & "FROM DispReasons INNER JOIN RecordList ON DispReasons.ReasonID = RecordList.RecReasonCode" & _
"WHERE DispReasons.ReasonID =?;"
SchultzMan
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May 1, 2011
i have visual studio ultimate 2010 and i was using visual basic and when i tried the messagebox.show command it does not work , am i missing any libraries that need to be installed or did they change this command , if i am missing some libraries , is there a patch or something that needs to be setup.
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Jan 27, 2010
with vb 2008 express is there any EOF & BOF properties if not is there any alternative for the same any sample line of code (2) what is the place holder for MySQL parameter with command object?
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Apr 24, 2012
It seems up until now I've never used Regex, nor even heard of it. But once I did I realized how extremely useful this is. Having said, it's been 2 days since I've began looking into constructing my own patterns. My most recent being for decimals. Is the pattern I provided below "proper"? and are there also any improvements I could be making for a more efficient patter, which would minimize any possibility of a loophole? [code] So for my use, this is doing what it's supposed to being doing under every test I can through at it. But do mind the 0. and .0, I have a function to normalize these as they are proper, I just pad the left and right accordingly. I found most regex questions asked here..and yes I am doing this in vb.net so it fits. If not, then feel free to move this post somewhere else better suited for the topic of discussion.
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Apr 30, 2011
Getting command parser to work. I've made a new topic for this, because the old one isn't getting much attention, but also, I wanted to refine my questions, so that they would be easier to work with..
Here's how I have this code set up in my project..
I have a function module with public functions like so..
Code:
in my public class GameWindow I have the sub for the first rooms look command..
Code:
Now everything is going to be fed through a button click. User imputs MyString, and presses button. Here's the button code.
Code:
This isn't generating any output.. not sure how to go about getting it working. ha, I'm learning though...slowly, but surely. I like the hands on approach of implementing things into my project, and working with them. I learn better that way, plus the project'll get completed eventually.
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Mar 4, 2010
I have an MS access database that has fomrs with buttons to do certain tasks - a "console" or "toolkit". I am trying to run cmd.exe as the local administrator using this command....
Call Shell("C:WINDOWSsystem32
unas.exe /noprofile /user:administrator cmd.exe")
If my domain account is added to the local administrators this works fine (it asks for a password - is there any way round this?)
If i visit another PC in the domain on which i am not a local administrator, it doesnt work and i don't know why In both scenarios i can manually browse to cmd.exe and right click and runas a differnt user without any problems.Also, is there a more efficient way of running this command?
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Jul 22, 2011
[code]Myself and a coworker have stared at this quite a lot and we can't figure out why it's not working. The problem is in the value for @ID (since it still works when I leave the other one parameterized). The funny thing is, Just a few lines of code above it I have a different query that sets a parameterized value for the same ID, using the the same choices list that the For Each loop is getting the match variable from.Choices is a list of longs, and when I use choices(0) to parameterize ID in a query, it works. But now down here in this loop I have the new match long, and it doesn't want to make it work for me.
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Dec 9, 2010
i have a mysql server up (xampp) that everything work whit locla host in PHP but when i use it in VB whit the code: [code]
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Apr 10, 2010
I've spent a whole day on this already without figuring it out. I'm hoping somebody can help me translate the following MySQL query to work for SQL Server 2005:
SELECT MAX ( messages.date ) AS maxdate,
topics.id AS topicid, topics.*, users.*
FROM messages, topics, users WHERE messages.topic_id
= topics.id AND topics.user_id = users.id AND
topics.forum_id = " . $forumid . " GROUP BY
messages.topic_id ORDER BY maxdate DESC
$forumid is a QueryString value defined in the following VB.NET code-behind code:
forumName.Text = "<a href='ViewForum.aspx?forumid=" & row.id & "'>" & row.name & "</a>"
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Aug 22, 2011
I have a question regarding a javascript command. What I am doing is on a asp.net page, a user clicks on a print button which I have another page open up and at the bottom of that page, I put in a simple script command, but I have noticed that my window.close doesn't always work. [Code]
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May 15, 2008
[Code]...
KEYASCII command does not work with visual studio 2005. What is the new code we should use?
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Aug 8, 2011
I'm having trouble getting this Shell command to hide this script. I got this Shell command to work with other compiled VB script but blog_finder.exe was created by some other program. Any ideas on how to hide it or minimize it. All variations of AppWinStyle.xxx doesn't seem to work. [Code]
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Jul 28, 2009
I have a page with multiple RadPageViews, some with RadGrids in them. They all need command item template in order for the user to edit and refresh the grid. On my first page view, the item template works perfectly, poping-up the edit form for the user to edit the data of the selected row. On my second page view, the command item template buttons don't seem to want to work (not even the refresh). If it were just the edit button then i would suppose there'd be a problem with my edit form, but not its that no buttons seems to work (not even refresh). The grid does display the information correctly too.
Here is the code of the pageview who's radgrid doesn't seem to work:
CODE:
I've been going through it many times and i don't understand why it doesn't work. I've also compared it to the working pageview and there doesn't seem to be any noticeable difference between them both.
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May 1, 2011
How connect Vb.Net to MYSQL..? How to add info to database user informations using mysql database. How to call login infos using mysql.
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Sep 30, 2011
We have a VB.Net application which works fine in our tests in different Windows XP SP3 machines. However there is one machine in which is displaying this error:
Unable to connect to any of the specified MySQL hosts
Using the mysql command, we can successfully connect to the database. We already checked for any other application or firewall that could be blocking the connection but it seems fine. We also reinstalled the system (no errors during the installation) but the MySQL error message doesn't change.
The system settings are exactly the same as in the other computers. We are using "localhost" as server in the connection string. The "hosts" file has its default values (nothing strange in there).
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