How to make Database calls without directly htting the DB Listener?

Question

Hi
I have a frontend end (code sitting on user's PC) application that needs to call the database, say, to look up table data and populate a JTable.
So, I make a call directly to the database, on the default 1521 (yes, it's Oracle!) and get my data. However, I have other server side java code connecting with my application over a Java socket. (sending messages back and forth).
So, I've got two ports open, 3041 (arbitrary ) for the Java socket and 1521 for the DB.
I want to close 1521 and move the sql statements to the server.
I can't work out a way to do this effectively. At the moment, I'm sending a message through 3041 to tell the server side code to perform a DB call. Then the database returns the info and I send a message back to the client PC with the data.
It makes the DB call asynchronous (good or bad thing?), since I have a listener on the client waiting for messages from the server.
It all looks a bit messy....ie sending messages and waiting for replies just for a DB call.
Is there a standard practice for my problem that I can use?
Thanks

Answer 1

Your script won't work.
#Renamed the variable so that it's less confusing.
$webUrl = "http://spsite"
#There's no point getting the SPSite object if you only want/need the SPWeb object.
#$spSite = Get-SPSite -Identity $mySiteUrl
#$spWeb = $spSite.OpenWeb()
$spWeb = Get-SPWeb $webUrl
#You've copied this from an example that uses a subsite which has the documents. That's not a great approach and probably not valid for yours
#$cvDocumentLibrary = $spWeb.GetList("subsite/Documents")
$library = $spWeb.Lists["ListName"]
#Here you are referencing '$lib' which hasn't been declared. PowerShell will be completely ignorant of what on earth that is and will throw a null reference exception
# $item = $lib.Items | where {$_.Name -eq "Report.docx"}
#This still isn't perfect as it's slow and won't work on lists that are over the throttling limit but it'll work most of the time.
$item = $library.Items | where {$_.Name -eq "Report.docx"}
$item.Delete()
You need to slow down and check things.
$webUrl = "http://spsite"
$spWeb = Get-SPWeb $webUrlWrite-Host "The URL of the website is: " $SPWeb.URL
$library = $spWeb.Lists["ListName"]
Write-Host "The Library title is: " $Library.Title$item = $library.Items | where {$_.Name -eq "Report.docx"}
Write-Host "Deleting item named: " $item.Name$item.Delete()
In that version it should print out some lines as it processes which will confirm that you've found the web, list and item before it does anything.
If you hit errors post up the EXACT code you're using, change the URLs a little bit if you want but try to only replace words rather than missing out whole chunks.