Databases

What riley was saying,
Is that the application isn't communicating with the Database at all, it communicates with a PHP web page that uses localhost to then connect to the Database.

So, In a way, MPGH runs like so. PHPbb runs in a similar way.

You could use a simple echo on the php?
PHP is really easy to understand, just look a few things up!

Hahaha, my bad.
And any encryption is capable of being decrypted, i'd suggest PHP as well, I've tried to use it before.

here...anway this is how i do it...
try it anyway ^^

dim k as integer
Public Sub Search()
k = 0 ' <==my flag if theres found data
con.open
dim dt as new DataTable("TableName")
dim rs as new oledb.oledbDataAdapter("Select * from TableName where Columnname='"& searchname &"' ",con)
rs.fill(dt)
'if your using datagridview..me? i use datagridview all the time i..just hide it ^^..
datagridview1.datasource = dt
datagridview1.refresh()
label1.text = dt****ws.count '<====this will be the flag ,,it counts the row numbers in the table dt("TableName")..


rs.dispose()
con.close

if val(label1.text) >= 1 then <<====when this value goes more than 1 or 1 then what you search is there..if not then value of label1 = 0 ..no data found
Msgbox("Data Found!")
k = 1
else
Msgbox("No Data Found!")
End if


End Sub


Public Sub Add_Data

con.open
dim rs as new oledb.oledbCommand("Insert into Tablename(colname1,colname2,colname3) values ( '"& colnameval1 &"' , '"& colnameval2 &"', '"& colnameval3 &"')",con) ' command for adding data into table..anyway..should have not included this.

rs.executenonquery

con.close

End sub

private sub button1_click
if k = 1 then '<<===remember the flag k as integer? ,,,,yep here it is
msgbox("Data already exist")
Else
msgbox("Can call add data")
add_data
End if
end sub

No idea, i'm inexperienced with databases, i have little knowledge.
Sorry :/

Personally, I'd execute a select * where the data is what the user inputted, after which I would check if more than 0 rows are returned. If there are 0 rows (nothing is found) then the item doesn't exists, and if there is more than 0 then the item does exist.