I would like to update data to Datagrid in Visual basic 6 manually by accessing [row,column] (Without connecting to database), How to do it?
If I summarize further, How to add the data without connecting to database?
Related
I am developing a project in ASP.NET MVC and C#, using a SQL Server database managed in SSMS. I changed two of my column names in Visual Studio, added the migration and updated the database in VS. This deleted my two original columns and all of there data instead of just changing the column name like I expected.
Unfortunately I didn't make a backup of my database first as I didn't consider this outcome. I even tried to run a targeted migration to a previous state of the database but that just changed the column names back without the data that was originally there.
Please help with a solution to restore the data without a backup file. Any possible solutions are appreciated.
I have an asp.net mvc website, and I would like to know if/how to save my database tables and values to my migrations/models so when I publish my website the first time it runs it creates the database on the iis sql server and fills the tables with the data? I am using sql server 2016 on my computer and on the server. right now it creates a default database on first run but no tables get created. I have just been making the database and tables manually when I publish, but I want to know if its possible to have it done automatically.
I was just looking for some guidance with my app design. I'm going to have a local sqllite database pre populated with about 1000 records.
These records will need to be read frequently within the app to update the UI.
The records will need to be updated from within the app.
Is a local mysql database the best way to do this or should I be storing all this info in a massive lua table? The database has 2 tables one with 2 columns and one with 10 columns.
I don't want the data to be accessible from outside the app as some of the data is going to be paid for content.
How would I go about releasing updates in the future? If I upgrade my app to version 2 and add new records to the database... how would I go about keeping the users existing data in the database and just adding the updated stuff?
Hope someone can point me in the right direction!
Many Thanks,
Krivvenz.
I think this is fairly simple question. If you need to use data after closing and opening the app you will need sqlite. If the data is created and lost after the app usage, then a table will do. However, the sqlite has also the advantage of querying, deleting and so many other functions without loops etc that you may need to do in tables manually.
You can also append further data during app update. The Sqlite file you create is saved to document directory. That is not deleted if you only update. Simply write a code in your update that reads the existing database and appends the new data. Or create a new file for sqlite and use the old one as backup.
i am new in using asp.net language and i try to edit code asp.net which is already connected to a database on iis server
the problem that i faced is:
i can retrieve all table that already exist on that database but when i add new table i cannot retrieve it on asp.net "not found"
the same problem when i add new column all already exist column , i can retrieve them except the columns that i added them
but when i edit record , the record updated on asp.net so the problem when i create any thing or alter name of a column
thanks in advance
What sort of data access technology are you using? ADO.NET Entity Framework (one with .edmx file) or ADO.NET (one with .xsd)?
If you are using one of these you need to refresh or add tables in these diagrams too. Otherwise please get your code here so that picture gets clearer.
I have a number of manually written scripts (.sql) for tables, views and stored procedures that are used from an ASP.NET application. These scripts drop the object and recreates them. I need a way to update the database when the scripts change without deleting the object. For example, when a column is added to an existing table that has rows in it, I would need to update this table with this extra column without losing the rows.
I need a way to "update" the database on a single click (I can hook up the changes using a batch file). Does Visual Studio support this kind of functionality?
If you get Visual Studio Team System - Database Edition 2008 - which is now bundled with "Developer Edition" for free - it handles that. Visual Studio database projects without that edition really just store the static SQL that you want to track. The Database Edition is capable of determining the 'deltas' between your SQL and what's in a target database, generating that script, and executing against your database. You do get the option of reviewing that generated SQL, but by default it is very safe [it won't run if it thinks that there will be any data lost].
Yes - it's called Database Projects.
You can define a Visual Studio Database Projects, have create and change SQL scripts inside it, and then execute those against a database connection of your choice when you need to.
See this blog post here for a great explanation, or read the whole series that the 4 guys from Rolla wrote.