#Insert data into database how to#
#Insert data into database update#

It explains the fundamentals for executing commands from different point of views. If you have time, I'd suggest going through Properly executing database operations. A commonn practice is to use ExecuteNonQuery To insert a row into a table, you follow these steps: Establish a database connection to get a Connection object. We will use the actor table in the sample database for the demonstration.

#Insert data into database how to#

However, as this is an insert statement, nothing is expected to be returned from the database. Summary: in this tutorial, you will learn how to insert data into a table in the PostgreSQL database using JDBC API. The insert statement is executed by calling ExecuteReader. If needed, have a look at IDENTITY columns for example Dept_Id, not sure if this is the key and how it's supposed to be handled, but if this column is intended to be the actual primary key for the table, you probably should let the database to decide the value for it in order to prevent duplicates. So instead of converting the date into a string, use a parameter and store DateTime.Now into it as-is. When using proper data types in the database it's easy to query, modify, calculate with the data. Dates, never store the dates in any other format than in a date column. For example in your code you do not dispose the SqlCommand. I feel that the easiest way is to use using statements instead of calling the Dispose method. You should always dispose the disposable objects. Third thing is the usage of dispose or using. The only correct way is to use parameters in order to be safe from SQL injection and help with type conversions etc. More important than that is that never ever concatenate the input from the user as literal to the SQL statement. Should be sufficient, although this could also be added as a default in the database if the value is always the same in the insert. Private Sub New_Department_Click(sender As Object, e As EventArgs) Handles hopefully i can make you understand.ДGV should looks like after adding new Department 'TEST' So new department added the date of creation is showing but Im unable to get 'NOT AVAILABLE' text in dept_modify since the department just created not modified. So I want to add 'NOT AVAILABLE' text into 'dept_modified' when I add new department(new_dept_button_click). What I needed is whenever I add some department using new_dept_button_click' its automatically add 'NOT AVAILABLE' text into dept_modified column on database.Д¬olumn Names = dept_id,dept_name,dept_created,dept_modified.

#Insert data into database update#

I have a database called testDB and VStudio already connected and doing all INSERT, DELETE and UPDATE operations.