Quantcast
Channel: VBForums - Database Development
Browsing all 2918 articles
Browse latest View live

Image may be NSFW.
Clik here to view.

[RESOLVED] copy column in the same table

Good morning all I ' like to copy data in column A to column B without erasing data of column B. I use this code but it it doesn't work properly . Code: INSERT INTO Tbl1(Item2) " & _ " SELECT Item"...

View Article


Help required with SQLite syntax (attached db)

Code:     Dim cOld As cConnection     Set cOld = New cConnection     m_CN.AttachDataBase "D:\backupdata.db", "old"         m_CN.Execute "UPDATE main.stuff SET " & _...

View Article


SQL Server constraint on multiple columns

I would like to enforce a constraint on an SQL Server table as follows: Table definition ComputerID autoinc ComputerName varchar(255) Username varchar(255) IsDefault bit ComputerName may have multiple...

View Article

Image may be NSFW.
Clik here to view.

Create Database Programatically

am a Visual Basic 2012 learner and this is my first project "Create a simple local database programmatically" I debugged it and the code hasn't any errors I compiled no errors. But, the program doesn't...

View Article

[RESOLVED] I need advice on performance and use of "redundant" data SQL...

We have a form in our application that does an "equipment" search. Equipment is items that we sell to a customer. WHen the form loads, it loads all equipment records (135,475 currently) into a table...

View Article


connecting to mysql remotely

I have a program i wrote that will attach to the Mysql Database on local network it is hard coded. works great I have another computer in different location that will house the database with a static...

View Article

Database real time update display

I am studyng database management in VB. This is my first project and works well. in Form1 I have a DataGridView, a ComboBox, 3 Buttons and 3 TextBoxes to insert, edit and delete the Table fields. Data...

View Article

SQL Server Change primary key from employee id to a control #

Warning, this question requires some thought... We've had a longstanding problem with one of our database tables that I think the company prez is finally going to let me fix. Long ago before I ever...

View Article


[ABANDONED] Chicken and Egg Problem

I have records in a table in one database, and have to move and transform any new ones into a table in a second database. On the face of it, that's not terrible. Most of the transforms are simple and...

View Article


[RESOLVED] Hashing Mysql example MySQL gives you. Like to know how its used

https://dev.mysql.com/doc/refman/8.0...on_aes-encrypt About the hashing Mysql example they give. I am trying to understand what 'My Secret Passphrase' represents. And what 'text' represents. And how to...

View Article

[RESOLVED] Mysql, is possible to select a column and use that column value in...

Something like this here. SHA2 is a MySQL function. I need to get the salt2 value and apply it in the function to create a hash to compare with another hash. Code: Select salt2,...

View Article

Problem in Date and parameters

Hi to all: This piece of code, try to extract all dates taht should be >= Date.today, but infornuttely this not happen, and i can't see why! Values in my database: Previsao_Nasc_1_Ovo - 10-05-2024...

View Article

INSERT INTO … ON DUPLICATE KEY UPDATE statement in MySQL ? with ID primary key?

https://www.machinelearningplus.com/...ists-in-mysql/ I was thinking instead of testing to see if the row exists, and if it does not, as in countID is zero do an insert or countID > 0 do an update,...

View Article


[RESOLVED] INSERT INTO … ON DUPLICATE KEY UPDATE statement in MySQL ? with ID...

https://www.machinelearningplus.com/...ists-in-mysql/ I was thinking instead of testing to see if the row exists, and if it does not, as in countID is zero do an insert or countID > 0 do an update,...

View Article

SQL Server - Permission to create a table but not just any table

There is a table in our database called xtblTaskQueryBill. I have a stored procedure that drops it. I have code in my C# application that creates it and insert rows so that I can call another stored...

View Article


[RESOLVED] SQL Server - Permission to create a table but not just any table

There is a table in our database called xtblTaskQueryBill. I have a stored procedure that drops it. I have code in my C# application that creates it and insert rows so that I can call another stored...

View Article

Image may be NSFW.
Clik here to view.

How to get the last record of a particular customer instead of total records?

Hi, How to get only the last record of a particular customer when I search with the customer number? I don't want to get all the records with that customer number. When I enter 2 in...

View Article


Count distinct in group by

This my query to count PR. SELECT PR, PROVINCIA, COUNT(PR) FROM TABELLA GROUP BY PR, PROVINCIA in field PR have a duplicate valute. How to count a distinct PR? Tks Tks

View Article

Random card insertion

Hi. This is for later this year but might as well be prepared. We need to issue a couple of million of cards that would be random and the random part to be from a number and up. So for example I have a...

View Article

[RESOLVED] Update lochave SET LCNT = 11 WHERE LSC = 'E' and (LOCN1 >= 142 and...

I want to update lcnt depending on vars for locn1 to locn2. This below does not work Table is like a range between locn1 to locn2, which is defined as decimal MariaDB [booksgood]> Update lochave SET...

View Article
Browsing all 2918 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>