RecordSet vs ResultSet

I'm used to manage recordset ( ado ) ... I'm a bit lost with resultset...
There is no "State" .BOF .EOF ...
Question/Problem:
How can I know if a recordset is null or empty?
Request:
PS: is there is any link, articles, document which are comparing recordset and resultset function ( comparable function ( equivalence ) )
Thanks you

Question/Problem:
How can I know if a recordset is null or empty?In general, you have to call next() until it returns false. A ResultSet does not necessarily contain all the rows queried. JDBC may make multiple calls to the database for large queries, so even knowing a ResultSet's size (which you can't do anyways) wouldn't necessarily give you the query size.
Request:
PS: is there is any link, articles, document which are
comparing recordset and resultset function (
comparable function ( equivalence ) )Don't know of any on that specifically, but for JDBC info, check out the tutorial: http://java.sun.com/docs/books/tutorial/jdbc/index.html
There are also some technical articles here: http://developer.java.sun.com/developer/technicalArticles/Database/

Similar Messages

RecordSet and ResultSet

When Should I use RecordSet and when ResultSet?

But how does importing an entire package makeany
difference to which class you actually use?Am I missing something? In what package isRecordSet?
No idea. I'm just curious why importing an entire
package would help make this decision. Hadn't even
considered where RecordSet comes from. It's not part
of the JDK, AFAIKI don't think that the poster wanted you to read it as an import but rather as "you should use the classes within the java.sql package when you can".

How to fetch records with two recordset

i want fetch records from the table using two recordset like
ResultSet r1=stmt.executeQuery("select * from pf_data");
i want to take another recodeset
ResultSet r2=stmt.executeQuery("select * from finyr");
I am using Microsoft SQL server as my database.
I am also closing the recordset like r1.close();
then i cannot take two recordset at the same time.

Hi,
This is an example of a Top-N problem, and here's one way to do it:
WITH got_r_num AS
    SELECT item_id, supp_id, rnk                         -- RANK is not a good column name
    ,       DENSE_RANK () OVER ( PARTITION BY item_id    -- Just guessing
                                 ORDER BY      rnk
                               ) AS r_num
    FROM    table_x
    WHERE   item_id = 2      -- If desired
SELECT    item_id, supp_id. rnk
FROM      got_r_num
WHERE     r_num    <= 2
RANK is the name of a built-in function in Oracle, so it will cause lots of trouble if you use it as a column name. (The RANK function is closely related to DENSE_RANK, used above.)
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved, and also post the results you want from that data.
Point out where the query above is giving the wrong results, and explain, using specific examples, how you get the correct results from the given data in those places. If you changed the query at all, post your code.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ: https://forums.oracle.com/message/9362002

Retrieiving hashmap which contains database tables in it

Hi,
I am new to java and i am struggling on this issue.
I have an xml file which has readers and publishers.
I am writing some queries in each reader and trying publish that in publisher class.
I have recordset for each query in publisher as property. as shown below
My problem is i am writing a generic publisher class where i have to take all recordsets or resultsets from xml file and display there count, and if count>0 then display one of the columns like all ID's.
As I told, this has to be generic class, even if I add any more readers with queries to my xml file my publisher class has to be same.
I am sending hashmap as parameter to the publish class method, which has all the result sets and their data.
any kind of help is appreciated.
Thanks

any kind of help is appreciated.help with what?
what is the problem?
not a very good first post i'd say

Unsupported response content type soap error

I have created a java method that returns an array of a class type (my class is an EJB). Then created a web service using Apache soap as deployment platform (see my previous posting for details). Created client stub and client application to access the method and display the result on the screen. When running the client application I get the 'unsupported response content type' error.
Can anyone help please, I am desparate!!!
Thanks
Alina

I have created the following EJB class and another class that has got the web method:
package orbatlistarraypackage;
import java.util.Date;
import java.io.Serializable;
public class OrbatType implements java.io.Serializable
public String orbatName;
public int orbatID;
public OrbatType()
public void setOrbatName(String pName)
orbatName = pName;
public String getOrbatName()
return orbatName;
public void setOrbatID(int pID)
orbatID = pID;
public int getOrbatID()
return orbatID;
I have another class that is an array of the OrbatType class and has a webmethod that returns the array.
package orbatlistarraypackage;
import java.sql.*;
public class OrbatListArray
OrbatType [] orbatList;
public OrbatListArray()
private void setOrbatArray() throws Exception
Connection cn = GetOrbatConnection.getConnection();
Statement st = cn.createStatement();
ResultSet rs = st.executeQuery("SELECT DESCRIPTION as ORBATNAME, ID AS ORBATID FROM ORBATS");
//to get number of records to determine array size
int noOfRecords;
noOfRecords = 0;
while(rs.next())
noOfRecords = noOfRecords + 1;
//new recordset as rs is once only forward reading recordset.
ResultSet rsOrbat = st.executeQuery("SELECT DESCRIPTION as ORBATNAME, ID AS ORBATID FROM ORBATS");
orbatList = new OrbatType[noOfRecords];
int i;
i = 0;
while(rsOrbat.next())
orbatList[i] = new OrbatType();
orbatList.SetOrbatName(rsOrbat.getString("ORBATNAME"));
orbatList[i].SetOrbatID(rsOrbat.getInt("ORBATID"));
i = i + 1;
rs.close();
rsOrbat.close();
@webmethod
public OrbatType [] getOrbatListArray() throws Exception
SetOrbatArray();
for(int i=0;i<orbatList.length;i++)
System.out.println(orbatList[i].GetOrbatName());
System.out.println(orbatList[i].GetOrbatID());
return orbatList;
//dummy to just generate the web service
//public int foo() {return 0;}
/*this works
public static void main(String arg[]) throws Exception
OrbatListArray myArray = new OrbatListArray();
myArray.GetOrbatListArray();
Does this answer your question? If so can you help please?
Thanks
Alina

Proxy to CSV format

Hi
I have a scenario proxy to CSV format. What are the content conversion parameters i have to use on receiver side for CSV format.
venkat

Hi Venkat !!
Basically, you should use a communication channel with File Adapter, type receiver, message protocol = File Content Conversion.
Take this XML structure for example:
<resultset>
<row>
<column-name1>column-value</column-name1>
<column-name2>column-value</column-name2>
<column-name3>column-value</column-name3>
</row>
<row>
<column-name1>column-value</column-name1>
<column-name2>column-value</column-name2>
<column-name3>column-value</column-name3>
</row>
</resultset>
In content conversion parameters, to obtain a CSV format file, you should enter:
Recordset Structure: "resultset" (without quotes)
In the below table:
name: resultset.fieldSeparator   -
> this sets the field separator
value: ','   ---> as comma
name: resultset.endSeparator -
> this sets the line separator
value: 'nl'   -
> as new line
Regards,
Matias.

Assign and OO4O resultset to an ADODB.recordset

How do i assign an OO4O resultset obtained within and oraDynaSet object to an ADODB.recordset (without having to parse the dynaset and .addnew the adodb rs).
help.

They are not compatible objects as you already found out. Bookmarks are not interchangeable either.

SSRS Tablix not showing full resultset. Recordset seems truncated.

Hi,
I have created a tablix for Test Results History as shown below. All components are added inside of a Rectangle (container).
Issue:
1) This table failed to show full resultset; recordset got truncated. The query returns 316 records, table displays only 239 records, where 240th record got truncated. Please see below screenshot.
Investigations/Analysis:
1) I tested with another query that returns 54 records; all records are displayed. Another query that returns 585; only 215 records are displayed. It seems that the number of records is not the limiting factor; the length of the tablix, or the Rectangle
(container) may possibly be the culprit.
Question:
How do I fix this? Please help!

Hi Simon,
I do have parameter defined but the "Display Test Result history" parameter only sets below behaviors:
1) If False, the Rectangle (container) becomes invisible, and the query would return no result (to increase performance)
2) If True, the Rectangle (container) becomes visible, and the query return valid results
The behavior I'm seeing right now is that the table is visible, and results are shown. However, some results are missing.
You may refer to below code:
declare @SelectedTestPlans nvarchar(500) /* Testing purpose */
-- set @SelectedTestPlans = '104' /* Testing purpose */
set @SelectedTestPlans = '81, 79' /* Testing purpose */
declare @ShowTestResultHistory bit /* Testing purpose */
set @ShowTestResultHistory = 'true' /* Testing purpose */
declare @SelectedIDs TABLE(IDs integer)
insert into @SelectedIDs
select * from master.dbo.fnSplitIDs(@SelectedTestPlans)
declare @TestCaseIdsTable TABLE
TestCaseId int
/* Update #00-1 - Populate Only TestCaseId */
insert @TestCaseIdsTable (TestCaseId)
select distinct
TestCaseId
from ([Tfs_Warehouse].[dbo].[FactTestResult] ftr
inner join [Tfs_Warehouse].[dbo].[DimConfiguration] dc
on dc.ConfigurationSK = ftr.ConfigurationSK
inner join @SelectedIDs s
on ftr.TestPlanSK = s.IDs)
where (@ShowTestResultHistory = 'true')
declare @HistoryTable TABLE
TestCaseId nchar(36),
Test nvarchar(256),
Result nvarchar(64),
OutcomeId tinyint,
ConfigurationId int,
Configuration nvarchar(256),
CreationDate datetime,
Name nvarchar(4000)
INSERT @HistoryTable (TestCaseId, Test, Result, OutcomeId, ConfigurationId, Configuration, CreationDate, Name)
SELECT DR.[TestCaseId]
,[Test]
,[Outcome] as Result
,[OutcomeId]
,C.[ConfigurationId]
,C.[Name] as Configuration
,[CreationDate]
,DP.[Name] as 'Run By'
FROM [Tfs_Warehouse].[dbo].[DimTestResult] DR
inner join [Tfs_Warehouse].[dbo].[FactTestResult] TR on DR.ResultBK = TR.TestResultBK
join [Tfs_Warehouse].[dbo].DimConfiguration C on TR.ConfigurationSK = C.ConfigurationSK
join [Tfs_Warehouse].[dbo].[DimPerson] DP on DR.ExecutedBySK = DP.PersonSK,
@TestCaseIdsTable TCID
Where DR.[TestCaseId] = TCID.[TestCaseId]
And (@ShowTestResultHistory = 'true')
Select * From @HistoryTable
Order By [TestCaseId]
Hmm.. What am I missing here?

Problem in setting the resultset recordset

hi all,
i am trying to do paging in my website .. i want to set the records fetched from the resultset...i am using the "rs.setFetchSize(3)"
i want to show only 3 records per page...
code is shown below.. problem is it is showing
"java.sql.SQLException: Invalid Fetch Size"
exception.... please help me out...
package demo;
import java.sql.*;
public class fetchrecord {
     public static void main(String[] args) {
          Connection con =null;
          try
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          con=DriverManager.getConnection("jdbc:odbc:chandan");
          Statement st=con.createStatement();
          String q1="Select * from Table1";
          ResultSet rs=null;
          rs=st.executeQuery(q1);
          rs.setFetchSize(3);
          System.out.println("Details are as follows");
     System.out.println("\n");
          while(rs.next())
          String Name = rs.getString(1);
          String School = rs.getString(2);
          System.out.print(Name+" ");
          System.out.print(School);
          System.out.println("\n");
          }catch(Exception e)
          System.out.println(e);
          try {
          con.close();
          catch (SQLException e)
          e.printStackTrace();
thanks
chandan sharma

as per the api documentation, an exception occurs when the condition 0 <= rows <= Statement.getMaxRows() is not satisfied

ResultSet - RowSet - RecordSet

Hi there,
I'm a newbie to Flash Remoting. I'm having difficulty
transferring a result set to flash using an intermittent rowset,
can anyone help?
The result to flash is null with either of the
implementations (commented & uncommented).
import java.sql.*;
import javax.sql.rowset.CachedRowSet;
import com.sun.rowset.CachedRowSetImpl;
public class JavaClassService {
public ResultSet getResultSet(){
Connection connection = null;
try{
Class.forName( "com.mysql.jdbc.Driver" );
connection = DriverManager.getConnection(
"jdbc:mysql://localhost/test", "root", "space7107");
Statement stmt = connection.createStatement();
ResultSet resultset = stmt.executeQuery("SELECT * FROM
testdata");
CachedRowSet crs = new CachedRowSetImpl();
//crs.setUsername("root");
//crs.setPassword("space7107");
//crs.setUrl("jdbc:mysql://localhost/test");
//crs.setCommand("SELECT * FROM testdata");
//crs.execute();
crs.populate(resultset);
resultset.close();
stmt.close();
connection.close();
return crs;
}catch(Exception e){
}finally{
try{
if(connection!= null && !connection.isClosed())
connection.close();
}catch(SQLException e){}
return null;

In case anyone has this problem - Sun 1.5 is required to use
CachedRowset - I had been trying to use 1.4 and the rowset.jar,
which wasn't working. Both commented&uncommented java code work
fine with flash remoting.

RecordSet to Cusror Conversion Help Needed

Hi,
I have a Perl Code which calls a Stored Procedure in Oracle 8i Database. As you know that you can return Cursors
and other data types back to Perl and not RecordSets. So I am trying to convert a RecordSet to a Cursor. The Stored
Procedure Does some complex computations and then stores the results in a record Set. I need to tansfer the data
from the Record Set back to the Perl Code via a REF Cusror. The only solution that I can think of is Creating a Temp
Table to store the results and then point a Cursor to that and return that Cusror to the Perl Code. Is there any other
way of doing this???. I searched lot of sites/forums, But couldnt find any solution.
You Help will be greatly appreciated :).
Thanks
Rajesh

Hi Rajesh,
i too had the same requirement but using Java Code.
One way to return a Cursor to the code is using a package.
the query which returns the recordset is to be assigned to a ref cursor. For eg.
CREATE OR REPLACE PACKAGE PKG_PLAN AS
TYPE RESULT IS REF CURSOR;
PROCEDURE USERDETAILS2 (
O_RESULT OUT RESULT
END PKG_PLAN;
CREATE OR REPLACE PACKAGE BODY PKG_PLAN AS
PROCEDURE USERDETAILS2(
O_RESULT OUT RESULT
AS
BEGIN
OPEN O_RESULT FOR SELECT DISTINCT US_FIRSTNAME AS UserName,
US_COMPANYNAME AS Company, TBLUSER.US_PRIMARYEMAIL AS EmailId ,
FROM
TBLUSER where
TBLUSER.US_STATUS = 'A' ORDER BY UserName;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('INSIDE EXCEPTION');
END USERDETAILS2;
END PKG_PLAN;
and in the perl code u will invoke the procedure as
CALL PKG_PLAN.USERDETAILS2(?)
where ? is the out parameter -of type cursor which is to be
registered via perl code.(not sure how it is done in perl)
and after issuing execute command via perl code
get the resultset.
hope u understood it and the above was of help.
Good luck
Rani
Hi,
I have a Perl Code which calls a Stored Procedure in Oracle 8i Database. As you know that you can return Cursors
and other data types back to Perl and not RecordSets. So I am trying to convert a RecordSet to a Cursor. The Stored
Procedure Does some complex computations and then stores the results in a record Set. I need to tansfer the data
from the Record Set back to the Perl Code via a REF Cusror. The only solution that I can think of is Creating a Temp
Table to store the results and then point a Cursor to that and return that Cusror to the Perl Code. Is there any other
way of doing this???. I searched lot of sites/forums, But couldnt find any solution.
You Help will be greatly appreciated :).
Thanks
Rajesh

How to determine whether a recordset is Empty or not ?

Please see my snippet code below :
<%
     String sql="";
     String username="CDS";
     try
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            Connection con = DriverManager.getConnection("jdbc:odbc:Employees","","");
            Statement stmt = con.createStatement();
            ResultSet rs=null;
               sql = "Select * from Employee where code='" + username + "'";
               rs = stmt.executeQuery(sql);
               rs.next();
               if (rs==null)
               %>
                    <jsp:forward page="Login.jsp?msg=Username not recognized"></jsp:forward>
               <%
            else
               %>
                    <jsp:forward page="Login.jsp?msg=Halo"></jsp:forward>
               <%
          catch(ClassNotFoundException e)
               out.println("Driver not found");
                catch(SQLException e2)
                        out.println(e2.getMessage());
                        out.println("<BR>");
                        out.println("Wrong SQL Statement");
                        out.println("<BR>");
                        out.println(sql);
                        out.println("<BR>");
     %>How to determine whether a recordset has no result ?
From the above code, i use if (rs==null) and that's not worked.
Help me, guys.

ResultSet rs = stmt.executeQuery(sql);
if (rs.next()) {
%>
    <jsp:forward page="Login.jsp?msg=Halo"/>
<%
} else {
%>
    <jsp:forward page="Login.jsp?msg=Username not > recognized"/>
<%
}

Displaying resultset one record at a time

This is a rather long question, but I have never done any projects like this before with Java.
I have an application in which users can view each record within a range of values one at a time. I have created a recordset that is sorted by one column in the resultset. What is the best way to display each record using forward/back buttons to "flip" through each record? How would I keep track of which record in the set I am actually displaying so I can move to either the next or previous depending on which button the user selects? Another problem I have is whether a particular button should be disabled?
Thanks in advance,
Chris

Try this link
http://www.theserverside.com/resources/article.jsp?l=DataListHandler
Select the Read PDF here link and it will download the PDF for you to read.
It's a pattern for the sort of problem that you describe. It comes complete with source code that you could use.
If you wish you can contact me via e-mail and I'll email you a working example.
Dave

Get value from Table/Recordset Cell into a JSP variable

Can anyone please help with this ?...
I need to get a cell value from a selected row of a table into a variable to pass to a java bean.
1 - The dynamic table is populated by a recordset named "rs" and has a submit button for each row .
2 - The user clicks on the corresponding button to select the row.
3 - The recordset retrieved the ID for that row in the query, but does not display it in the table.
I have tried :
<% String ID = rs.getString("bookid");%>
<% Library.bookConfirm(ID);%>
But this fails saying that it "cannot resolve variable rs..."
Yet the recordset populates correctly and its name is "rs"
Is there another way to do this perhaps ?... ie: put the id in a column of the table and get the cell value ?...
What would be the syntax to get the ID cell value of that selected row on the button click ?...
Your feed back would be greatly appreciated.
Thank you.

Create a new rs
ResultSet rs1 = statement.executeQuery(query);
and use getstring to access the individual cell.

Dts.Events.FireInformation: Output not coming through to recordset

I am using SQL Server 2008. I have a SQL Server T-SQL procedure that uses a shell command to execute a batch file. The batch file uses DTExec to execute an SSIS package. The T-SQL procedure is called from a Microsoft Access from end using
ADODB. All of this works satisfactorily, and the ADODB returns a result set that includes the execution results of the SSIS package and anything else that is in the batch file, such as 'Whoami'.
The execution results returned to Access are basically the same as those generated in BIDS when the package is executed in debug mode. However, I have included script tasks with Dts.Events.FireInformation commands. This generates lines that
are present in the debug mode execution results, but are not in the recordset returned to Access. Do I have to log these lines and retrieve them from the log, or is there a simple way to force their inclusion in the resultset returned to Access.

The Dts.Events.FireInformation writes to the console pipe, not the resultset.
I'd say they are redundant, you should write to a log table / file.
Arthur
MyBlog
Twitter

RecordSet vs ResultSet

Similar Messages

Maybe you are looking for