Problem with constraint in a table..help required..

Hi ,
i need to create a table which has an attribute year_joined and need to set a constraint that the year_joined should be less than or equal to the current year (year obtained from sysdate (YYYY)) ..
can any one help me with the create statement required...
eg: create table test(year_joined number, constraint c_year check(year_joined< = ?));
i could not use a sub query in the create statement.
help req..
thanks,
sri

Satyaki,
I tried but fail. Could you please tell the way how it can be implementaed in CHECK constraint.
SQL> CREATE TABLE T ( YERR_JOINED NUMBER(4) , CHECK (YERR_JOINED <='2007'));
Table created.
SQL> drop table t;
Table dropped.
SQL> CREATE TABLE T ( YERR_JOINED NUMBER(4) , CHECK (YERR_JOINED <= TO_CHAR(SYSDATE,'YYYY')));
CREATE TABLE T ( YERR_JOINED NUMBER(4) , CHECK (YERR_JOINED <= TO_CHAR(SYSDATE,'YYYY')))
ERROR at line 1:
ORA-02436: date or system variable wrongly specified in CHECK constraint
SQL>

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if (headerValueStr instanceof String)
//note that the header-key can not be null for addHeader
//I have made this temporary provision to make the programme work.
resp.addHeader(( (headerName==null)? ("null_header"+i) :(String)headerName),
(String)headerValueStr);
//check if the proxy authentication required or not
if (((String)headerValueStr).
indexOf(resp.SC_PROXY_AUTHENTICATION_REQUIRED+"") != -1)
System.out.println("ProxyServer:::>writeResponse-->proxy auth needed");
//proxy authentication is needed
proxyAuthReqd = true;
}//End
}//Ednd of
else if (headerValueStr == null)
resp.addHeader(( (headerName==null)? null :(String)headerName),
null);
}//End
}//End for
}//End if
}//End if
}//End
}//End while
}//End if
//get the writer to the client
prResp = resp.getWriter();
System.out.println("ProxyServer:::>writeResponse-->proxyAuthReqd="+proxyAuthReqd);
//juste test a simple header
System.out.println("Proxy-Authenticate = "+(resp.containsHeader("Proxy-Authenticate")));
//if the proxy asks you for authentication,pass on the same to the client
//from whom you have received the request.When this flag is true,the connection
//is closed by the remotehost adn hence any attempt to open in input steram
//results in an error ie IOException
if (!proxyAuthReqd)
//now get the content adn write it to the response too
brConn = new BufferedReader(new InputStreamReader(
targetConn.getInputStream()));
String tempStr = null;
while ((tempStr = brConn.readLine())!=null)
prResp.println(tempStr);
}//End while
//close the connections
brConn.close();
}//End if
else
prResp.println("Proxy Authentication needed...");
}//End
//close the streams
prResp.flush();
prResp.close();
}//End if
System.out.println("ProxyServer:::>writeResponse exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
//method to post request to the internet
private void postRequest(URLConnection targetConn,HttpServletRequest req)
throws ServletException
//extract the header parameters and the body content from the incoming request
//and set them to the new connection
Enumeration reqHeaders = null;
//reads the incoming request's content
BufferedReader brReqRd = null;
PrintWriter prResWt = null;
//stores temp header names and values
String headerName = null;
String headerValue = null;
try
if( (targetConn != null) && (req != null) )
reqHeaders = req.getHeaderNames();
//extract a header adn set it to the new connection
while (reqHeaders.hasMoreElements())
headerName = (String)(reqHeaders.nextElement());
headerValue = req.getHeader(headerName);
targetConn.setRequestProperty(headerName,headerValue);
System.out.println("ProxyServer:::>headerValue::> headerName = "+headerName+" : headerValue="+headerValue);
}//End
System.out.println("ProxyServer:::>postRequest\n");
//establis the actual connection
//calling this method bfore the above loop results in IllegalStateException
targetConn.connect();
//NOTE : try reading from and writing into OIS and OOS respectively
//now read the contents and write them to the connection
// brReqRd = req.getReader(); //this hangs for some reason
brReqRd = new BufferedReader(new InputStreamReader(req.getInputStream()));
System.out.println("Got the reader..brReqRd = "+brReqRd);
if (brReqRd != null)
String temp = null;
//establish the printwriter
// prResWt = new PrintWriter(targetConn.getOutputStream(),true);
prResWt = new PrintWriter(targetConn.getOutputStream());
System.out.println("trying to read in a loop from brReqRd.. ready="+(brReqRd.ready()));
while( (brReqRd.ready()) && ((temp=brReqRd.readLine()) != null) )
System.out.println("In while::>temp = "+temp);
prResWt.println(temp);
}//Emd while
//close the streams adn go back
brReqRd.close();
prResWt.flush();
prResWt.close();
}//End
}//End outer if
System.out.println("ProxyServer:::>postRequest exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
}//End

Hi serlank ,
Thanks for your reply. Well , I initially I thought of not pasting the code,as it was too long. But I could not help it,as I thought I must show in code what I exactly meant. That's why I followed a description of my problem with the code. You could probably have copied the code and pasted it in one of your favourite editors to take a look at it. Did you,by any chance, try to read it on the browser? And as regards reposting the same message, I can say that I did it as I felt the subject was not quite appropriate in the first posting and I was not sure as to how I could delete/alter the posting. I am not asking for a code-fix,but some suggestions from some one who might ever have come across such a thing.Anyway, lemme know if you have any idea on it. Thanks...

Problem with a Form field, need help

I work for a small police agency and I am our IT guy. Most of my IT tasks have many been hardware and system software and networking. I have been trying to learn and teach myself programming. I also create forms for agency use. I have been working on a form and want to add increased functionality to allow our officers to issue a citation with the least amount of time spend on the form. One main issue is that we have to have a unique citation number. We have come up with a format that will specify as such: YYYY(Officer's 4 Digit ID Number)-(Auto Incrementing number). So, for instance, if this is my 55th citation issued and my ID number is 0100 the citation number would appear like this: 20120100-0055. The ID number will be entered by the officer earlier in the form. The problem I can't seem to vision around is how I will keep the number to increase by one and have it maintain that way. I want it to be form specific, because each officer has their own vehicle and MDT that the PDF will reside on at this time.
So far, what I have toyed with in the past 30 minutes is this:
var Ticker = 0001;
var Year = getFullYear();
var x = getField('OfcIDNo').value;
Eventually the form will be autocreated by a program that will be run from a centralized server. I have even thought about running the from from a server and taking all the data and INSERTing it into a SQL Server 2008 Express DB table on a server, but I'd still have to have the citation number created at the form as the officer fills in the data. The last four of the number doesn't have to reset when the year changes, but it would be a plus. Any information anyone can help with I would appreciate it.
Thanks in advance

Seems like it was too easy, is it safe to assume that javascript and javascript functioning in Adobe PDF is a bit different learning curve? That does help, the only thing that I'm missing is the Auto Incrementing 4 digit number. I was toying with assigning a variable in the globals that would auto increment but having problems with how I would execute it. Each copy of the form would be installed on each officers MDT so the number would be specific to that officer. The format will be YYYY"OFCIDNo"-####. I would like to assign the number to the global variable on the execution of the Print Dialog. This way the officer an clear the form if he/she needs to start over and then it stays whether or not they close the file and reopen it.
That syntax has been very helpful to get started.
Thank you,
David

Problem with constraint in a table..help required..

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