Insert Null Into Mysql ?
Oct 11, 2010Is there way to insert null into mysql from an empty text field in vb.net
View 1 Replies
ADVERTISEMENT
MySQL Null Exception Error
Jun 7, 2010I am building a VB.net application using VB Express 2008 which connects to a MySQL database. Right now, I am only selecting records, but will be writing code for update / insert. I have installed the MySQL Net Connector, most recent stable build. I have set a reference to it in project references. It makes a connection and reads just fine, no issues there at all.
My problem is this: When exiting the project (via calling "End") I am receiving a null Exception error. Here is the error[code]....
Null Dates In Mysql Throw Exception When Loaded Into Datagridview?
Feb 15, 2012Having problems with null dates in a mysql table. Have eventually found out that I can store a 'null' date in mysql as "0000-00-00" and I can run the 'insert' command to add a record to the mysql table. When I check on mysql workbench I can see the row has been inserted correctly and the date shows as "0000-00-00".However...When I try to load the table into a datagridview, I get an error = mysql Conversion Exception was unhandled = "Unable to convert MySQL date/time value to System.DateTime".
View 4 RepliesWay To Insert Null Date
Nov 24, 2010I have some date fields that I want to not have any dates during a record creation. I figured the way to go would be to insert NULL. The way I'm going about it now gives me a Type mismatch error.[code]...
View 2 RepliesHow To Insert Null Values To Database
Nov 17, 2011I am working asp.net vb application. I have set of values to be inserted to Database.But their some fields are optional to be filled. I need to check the textbox empty. If empty I should not enter the value to Database. How to work on this?
View 4 RepliesInsert A Null Value In A Parametrized SQL Statement?
May 28, 2009Now that I've switched over to parameterized queries, everything is great except along with handling all the special characters that would otherwise disrupt an all text SQL stament, it's handling the word NULL. My code basically does this for every variable used in the entire SQL statement:
If strCallName = "" Then
strCallName = "NULL"
End If
[Code]...
and that worked great for my old all text ones because leaving the word NULL out of single quotes would tell it yeah, that's actually null and pass it a true null value. Now with parameterized ones, it's literally passing it the word NULL I tried just leaving the string empty but then when I try to execute the command, it says that the parameter cannot be a zero length string. So how do you give a null value to a a parameterized query and make it actually send that to the database in the statement? Would strCallName = vbNull work or would it still say it's a zero length string?
Insert Date Into Firebird When Null?
Jun 22, 2010i get the date value from other field then need to insert it into other database. but the problem is when the column is null the n it cannot insert it.
View 1 RepliesInsert Null Value In Date Field?
Nov 22, 2010i have a maskedtextbox which will accept only date in the format of "DD-MM-yyyy" no i want to insert this date in my db. i have done this successfully.
Now i want to insert null value in through that maskedtextbox .
Get Last Insert Id (VB + Mysql)?
Jun 22, 2010I have 2 tables in mysql:
1. stats (stats_id,statsno,statsName)
2.stats_det (stats_det_ID,stats_id,stat_DateAdd,stat_UserAdd,stat_DateModif,stat_UserModif)
I have a form named status and from here I want to add a new record in the first table (stats).I've created the insert statement in the first table which is running well, but I don't know how to get the last_insert_id from stats table and insert it in the second table stats_det.
[code]...
Insert Null Value From A Textbox At Numeric Field?
May 17, 2012Why when I try to save a null value from textbox at sql server 0 is saved?
View 2 RepliesWpf - Insert A Null Value Into A Smalldatetime Column In SQL Using LINQtoSQL Via VB?
Sep 8, 2009I have a smalldatetime column in SQL that can have a null value, but when I try to insert a null value using SqlTypes.SqlDateTime.Null and LINQtoSQL it puts in 1/1/1900 instead of NULL.
What is the best method to insert a null, or am I doing it at the moment. If I am using the correct method at the moment, what should be done to prevent the 1/1/1900 being displayed on my fields in a WPF application.
How To INSERT Using VB, Mysql And Odbc
Mar 30, 2012I have been using the internet to figure out how to INSERT into MySQL database. Im almost there I can feel it. Below is the code I put together, but when I click on the button and check the database to see if the data was inserted, it has not.
Imports System.Data.Odbc
Imports System
Public Class Form1
[Code].....
Insert Date In MySql With VB?
Jun 22, 2010I have been disturbed for a week now. I have a project in vb.net. And on forms I have two masked text boxes. One is for the user to enter their date of birth and in the second one Iam trying to get the date the record is created. With this one I get the current date from pc and format it to dd/mm/yyyy because I want the user to understand the date. How do I INSERT the user date of birth and the the Now () date which is also in masked text box into a MYSQL database? I know how to insert other text but the date fails to appear in database.
View 2 RepliesInsert Textbox 1 And 2 To Mysql Db?
Jan 16, 2012i use this code to insert textbox 1 and 2 to mysql db
this is the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using connection As New SqlClient.SqlConnection(?????)
[Code]....
i dont knw anything about connection strings, what i must put here :
Using connection As New SqlClient.SqlConnection(what connection string to use ?)
Multiply Insert To MySQL?
Jun 6, 2012i have a problem for put in multiply input
Try
Dim StrSQL As String = "INSERT INTO boranga" & _
"(IdBorangA,Answers)" & _
"VALUES (@B_IdA,@B_Answer);"
[Code].....
by adding more parameter "parameterB_IdA.Value = Label1.Text" for IdBorangA
and "parameterB_Answer.Value = TextBox2.Text" for Answer but the result i get that the table only filling with the data from Label2.text and Textbox2.text.
MySQL Insert Using Parameters?
Oct 3, 2011For the last couple of days I've been having problems inserting data into my MySQL database. I'm using parameters to insert the data and have done so in the past without any problems, but for some reason I haven't been able to get it to work this time.I have a form that the user inputs data to be inserted into the database. This data is then pushed into an array and sent to my class (CastProduction.VB) via a Public Sub. The data than pushed into a datarow and than pushed into a datatable. Once this is done I send the dataset and sql insert statement to a private sub that inserts the data into the database.
[Code]...
Cannot Leave Field Null When Running Insert Statement
Jun 8, 2009I have the following query that I use to create a new record in a database. If I leave any field on the form blank, for example, it throws the error "Memo.Lastname" cannot be a zero length string. Other than that the query executes appropriately.
Private Sub cmdSaveMemo_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles cmdSaveMemo.Click
If Len(Me.txtMemoID.Text) <> 0 Then
Memo.SaveMemo
[Code] .....
Date Cannot Be Left Null In Update / Insert Statement
Oct 14, 2009In every date field I have, I cannot update it if it is null. For instance, I have the following query and it will throw an error if the date fields are Null or zero lengths. Any ideas? I try and parse and get the following error: String was not recognized as a valid DateTime. if i don't, it throws a null error.[code]
View 7 RepliesInsert NULL Into Database If Form Field Is Empty Using ASP.NET & VB?
Jan 18, 2011I have a form and stored procedure that inserts the data from the form. It works fine except that if a field isn't filled in it doesn't insert a NULL into SQL it inserts "".
I've tried a few different ways but none seem to insert NULL, the one below still inserts "", can anyone point me in the right direction?
Here is the required part of the code, if you require more just let me know.
Dim rdr As SqlDataReader
Dim cmdInsert As SqlCommand = New SqlCommand()
cmdInsert.CommandText = "spPersonalDetailsInsert"
[Code].....
So if I enter nothing into address1 field it should write NULL to screen but it always writes NOT NULL. What does an empty form field equal? in classic ASP it was always "".
VS 2008 - How To Insert Null Value Into SQL Server DateTime Field
May 7, 2009How can I achieve this. Insert Null Value into SQL Server DateTime Field?
View 5 Replies[2008] Insert Data Into Sql Table With Filtering Null Value?
Jan 14, 2009my table is:
CREATE TABLE [dbo].[VarianceReport](
[ID] [int] IDENTITY(1,1) NOT NULL,
[FN] [nvarchar](50) NOT NULL,
[Fdate] [nvarchar](50) NOT NULL,
[code]....
But inserted null value when all textbox is temp!?!How to resolve this problem and best way for this action?
Can Insert Records To Mysql Database
Oct 3, 2010i build a code that can insert my records to mysql database.. the codes are correct it can save records to the mysql database. Now i want to know is what code will i used that will show an error if the records already exist, so it will not make the same records again. here is my code for my INSERT code for mysql databas.[code]
View 4 RepliesDB/Reporting :: Insert MySQL With 2008
Mar 20, 2012I'm trying to do a looped insert using the MySQL Connector for .NET and for the most part it's working, except for it's missing out inserts. The code below is what i'm using. An example is there are 20 items in the listview and only 8 out of the list actually insert to the mysql database. It's as if the loop runs too quickly for MySQL to keep up. My issue is that eventually this loop will be inserting many thousands of entries and I can't have it missing information out.
[Code]...
Insert Record In Mysql Databse?
Jun 26, 2010I have this code and whenever i try to run it, I always get an ODBCEXCEPTION WAS UNHANDLED ERROR [42000] [MySQL][ODBC 5.1 Driver][mysqld-5.0.51b-community-nt]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 'char VALUES('101','noodles')' at line 1
[Code]...
Insert Query On MySql Db Using VS 2008 / VB
Oct 21, 2009I am trying to to an insert query on my MySql db using VS 2008/VB. I have this query: Insert into allservices StartDate....) values ('" & Me.datesched.Value & "', ....) When I use the single and double quotes, as it is above , I get this error: Quote: Incorrect date value '21/10/2009' for column StartDate at row 1
when I remove the single quotes and have only the double ones I get a completely different thing. The date inserted to the database is 01/01/0001. Even if my datetimepicker has a min and max date. Also if someone has any good links on using mysql with vb.net
Insert Textbox Into MySql Database
Jan 16, 2012an example code of how to tell vb.net to input a textbox data into MySql database, i am a new learner
View 4 RepliesReturn Last ID (IDENTITY) On Insert Row MySQL
Mar 20, 2012Dim insert_coupon_query As String = ("INSERT INTO qa_discountcoupons (id, status_code)
[Code]...
VS 2008 : Insert Image In Mysql Db?
Mar 16, 2010I want to insert image in mysql database using my vb.net program. Then my php script should be able to read from that database and create a file which can be viewed/downloaded by me.Now I am using vb.net program to connect and insert rec in db. Inserting record works okay. But I dunno how to insert contents of image file.
Dim cmd As New MySqlCommand("Insert into " + tables.SelectedItem.ToString() & " (clientid,priority) values(123,'hi')", conn)
' The above code is able to insert a record Now my table has field called img which is blob type. It can store image but how do I sent that image data using insert statement.I am using MySqlDataAdapter.
VS 2008 : Insert Time Into Mysql?
Feb 23, 2010I am developing a portion of an application that deals with settings reminders and alarms for personal notes. I am trying to insert from a formatted datetimepicker( formatted to show time only ) the time a user wants to get a reminder of something he/she wants. The column in the MySql database is of type 'Time'. I was never succesfull in entering and saving the data. Either I was getting validation problems not allowing me to exit the datetimepicker after I choose the time. To resolve this issues I just made 'false' the option 'causes validation'. Now the problem is that the time is not inserted getting problems saying that :
Quote:
Specified cast is not valid.Couldn't store <01/01/1753 00:00:00> in ntime Column. Expected type is TimeSpan.
here is the code for saving
Dim xtime As DateTime = New DateTime
xtime = Me.NtimeDateTimePicker.Value
Dim result As DialogResult
[code]....
This time it does not even insert a new row it just updates the last entry I have changing its time. This is strange as this happens only when I use the above two lines.
VS 2010 Insert INTO MySQL Table
Mar 27, 2012I have a MySQL Table that I would like to insert stuff into using VB.NET.[code]
View 15 Replies
