Resultset 1 « Resultset « Java Database Q&A





1. How to handle huge result sets from database    stackoverflow.com

I'm designing a multi-tiered database driven web application – SQL relational database, Java for the middle service tier, web for the UI. The language doesn't really matter. The middle service tier performs ...

2. Java NullPointerException when traversing a non-null recordset    stackoverflow.com

I am running a query on Sybase ASE that produces a ResultSet that I then traverse and write the contents out to a file. Sometimes, this will throw a NullPointerException, stating ...

3. combine 2 resultset    stackoverflow.com

is there a way to add the results of 2 different queries to a resultset? something like that:

ResultSet rs ;

i=0;

while(i<=l)


  ResultSet rs1 = select * from tablei;

  rs = rs ...

4. Best Way to get XML from a JDBC resultset    stackoverflow.com

I'm looking for the best approach to getting an XML document from a JDBC resultset. The structure of the XML isn't awfully important, but it should be fairly speedy. For clearification, I ...

5. Building resultset using collection object    stackoverflow.com

I had an issue in building the resultset using java. Here it goes... I am storing a collection object which is organized as row wise taken from a resultset object and putting ...

6. ResultSet method "last" is this an optimal way?    stackoverflow.com

I have this java code which does this

ResulSet rs = stmt.executeQuery();
while (rs.next()) {
    .... //do regular processing

    if (rs.last()) {
      ...

7. Java ResultSet how to check if there are any results    stackoverflow.com

Resultset has no method for hasNext. I want to check if the resultSet has any value is this the correct way

if (!resultSet.next() ) {
    System.out.println("no data");
}
...

8. Easy way to fill up ResultSet with data    stackoverflow.com

I want to mock a ResultSet. Seriously. I'm refactoring one big complicated piece of code which is parsing data from ResultSet, and I want my code to behave identically. So, I need ...

9. How to stub/mock JDBC ResultSet to work both with Java 5 and 6?    stackoverflow.com

I'm testing some of my classes working with JDBC statements etc and now I got problem with JDBC ResultSet interface: The software should run both with Java 5 and Java 6 and ...





10. Java JDBC Lazy-Loaded ResultSet    stackoverflow.com

Is there a way to get a ResultSet you obtain from running a JDBC query to be lazily-loaded? I want each row to be loaded as I request it and ...

11. What really comes back when using a ResultSet in JDBC?    stackoverflow.com

The following pseudocode works, which is probably no surprise to anyone who's done any JDBC work:

ResultSet rs = foo.executeQuery();
boolean hasNext = rs.next();
while(hasNext) {
    bar();
    boolean ...

12. Any WorkAround For Java ResultSet Limitaion    stackoverflow.com

I am doing a database migration work. I have to copy a database in MSSQL to MySql database. It was possible to come up with a small java utility to copy ...

13. Sorting of 2 or more massive resultsets?    stackoverflow.com

I need to be able to sort multiple intermediate result sets and enter them to a file in sorted order. Sort is based on a single column/key value. Each result set ...

14. How do I get a Double out of a resultset instead of double?    stackoverflow.com

When working with a JDBC resultset I want to get Double instead of double since this column is nullable. Rs.getDouble returns 0.0 when the column is null.

15. What happens to the original resultSet when it is returned from a method into a new object?    stackoverflow.com

pseudo code to explain my self better. I'm learning Java at this point in time. if I have a method

public resultSet getEverything() 
{    
   resultSet rs ...

16. How to combine two ResultSets in Java?    stackoverflow.com

I have two result sets (rs1 and rs2) having same fields. Now how to combine those two result sets into one so that duplicate rows are shown once.





17. using ResultSet.Previous method not working in Java using .mdb file OBDC    stackoverflow.com

I'm currently having an issue with my open result set not working how I believe it should. The only function that is currently working is the next() method, nothing else will ...

18. Check if edit is valid for database ms-access    stackoverflow.com

I want to be able to check if I can edit a cell in a database with a new object Example method declaration: something.isValid(Object newObject, row, column); Example cases:

  • If the editing cell stores an ...

19. what is the best way to put resultset data into a text file?    stackoverflow.com

I want to put all the data in the resultset into a text file in the same order. Is there any method to get data in all the rows at once ...

20. When accessing ResultSets in JDBC, is there an elegant way to distinguish between nulls and actual zero values?    stackoverflow.com

When using JDBC and accessing primitive types via a result set, is there a more elegant way to deal with the null/0 than the following:

int myInt = rs.getInt(columnNumber)
if(rs.wasNull())?
{
 // Treat as ...

21. java problem about ResultSet    stackoverflow.com

I want to merge two Resultset Object into third one. If you have any idea then reply.. vipul

22. IS ResultSet thread safe    stackoverflow.com

Is ResultSet Thread safe? My question arises because in my program i have used different statement for each query i have declared a ResultSet as an local variable but it gives ...

23. Efficiently fill resultset in object model    stackoverflow.com

I have an object model whose structure is
Dashboard
  List of panels
    List of containers
...

24. how can i send resultset in JAX-WS    stackoverflow.com

i am building a web service in java and my client is .net for example my table contains String "name",String "surname", and Integer "id" and i want to send all of them my ...

25. How do I handle large resultsets in Crystal Reports using Java?    stackoverflow.com

Problem Definition I have a performance problem displaying large/huge resultset of data on a crystal report. The report takes about 4 minutes or more depending on the resultset size. How do you ...

26. How to return resultset from web service in java    stackoverflow.com

i am writing an application in which i am creating web services. i am creating an operation(method) which retrieves database table values from database table in resultset. Hence we can't return ...

27. Handling BOOlen resultset in java    stackoverflow.com

I have one query that returns string value, my query is select case when (select count (distinct style_packing_spec_id) from packing_spec_uses_pack p,style_pack sp where sp.style_pack_id=p.style_pack_id and sp.style_id=1701) != (select count (distinct style_packing_spec_id) from ...

28. Copying Java ResultSet    stackoverflow.com

I have a java.sql.ResultSet object that I need to update. However the resultset is not updatable. Unfortunately this is a constraint on the particular framework I'm using. What I'm trying to achieve ...

29. How to check that a ResultSet contains a specifically named field?    stackoverflow.com

Having rs, an instance of java.sql.ResultSet, how to check that it contains a column named "theColumn"?

30. Using Resultset in Java Program    stackoverflow.com

Resultset rs=stmt.executeQuery("select count(*) from feedsca group by score order by score");
Using the above java code above, am retrieving the counts of rows from the table named feedsCA. While trying to retrieving the ...

31. How do I return a resultset using Jersey JAX-RS?    stackoverflow.com

I am running a query to return State, City, and Zip from my database. How do I get JAX-RS (Jersey) to return this like this;

<State>
   <City>
    ...

32. Parse a Database Result Set into an Object List    stackoverflow.com

I am trying to get all data from a table contained in a database, and parse it into a List. I have tried a few different techniques and can't get it ...

33. getColumnLabel vs. getColumnName    stackoverflow.com

What is the difference between ResultSetMetaData.getColumnLabel and ResultSetMetaData.getColumnName? Label: Gets the designated column's suggested title for use in printouts and displays. Name: Get the designated column's name. Does anyone know ...

34. How can I sort ResultSet in java?    stackoverflow.com

I can't do ORDER BY in the db by the way

35. can load db to weka with resultSet    stackoverflow.com

I am tring to load my DB to weka.But I dont know how to load my db to Instances type. My DB details looks like this

      Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
 ...

36. Whether resultset is directly connected with database    stackoverflow.com

In Java, Whether DB driver request to DB for each row of resultset? Means if there are total 200 rows are fetched then would there be 200 requests to database? Or the ...

37. I want to design a web page containing multiple output areas which will hold data generated from a JDBC Resultset    stackoverflow.com

I want to design a web page containing multiple output areas which will hold data generated from a JDBC Resultset I am a JAVA newbie with over 20 years of software development ...

38. Output large xml from resultset    stackoverflow.com

We have an application in which an XML string is created from a stored proc resultset and transformed using XSLT to return to the calling servlet. This work fine with smaller ...

39. How to implement a resultset in a data base system in java?    stackoverflow.com

I am implementing a data base system and I want to implement a method "select"(search). So far we have three cases, 1st case : Select with a hashing key Very easy, get ...

40. IBatis: resultMap not being taken into account    stackoverflow.com

I've been trying to get iBatis to return a list of POJOs like on this link: http://www.java2s.com/Code/Java/J2EE/GetListOfObjects.htm All I'm getting in return is a list of Map instances. Is there something ...

41. JDBC executeQuery() returning both ResultSet and output params    stackoverflow.com

I am calling one sp with few out params and as per my requirement,I need to use ResultSet on some condition and out params on other conditions. But using executeQuery(), I ...

42. can't print from ResultSet transferred to Client From Server    stackoverflow.com

i need to create a client-server connection (in JAVA), where the server is connected to a database and the client can send queries and get answers. I use the OCSF ...

43. Java ResultSet, SetObject vs SetString/SetDate/etc    stackoverflow.com

I'd like to know whether anyone considers using PreparedStatement.setObject for all data types as bad practice when preparing a statement. A use case for this would be a DAO with a ...

44. Abrupt Resultset behavior in java    stackoverflow.com

I am stuck with an issue over past 2-3 days. It seems to be a minor issue but I have not been able to catch it. The issue is with resultset rs ...

45. MS-Access working with multiple resultsets    stackoverflow.com

OK, I just found out I can't http://support.microsoft.com/kb/202433 I like the part: This behavior is by design Nevertheless I would like to know how I could select the data I need from ...

46. Java/XML request problem    stackoverflow.com

First time poster here. The problem I am facing is in Java and XML. The problem I am faced with is, a user will send a VerifyAccount XML request to our ...

47. problem dealing the ResultSet Value in Eclise Rcp    stackoverflow.com

My ResultSet Query is

StrQry = "select SUM(isnull(prn_amount,0))as prn_amount,SUM(isnull(adv_prn,0))as adv_prn, SUM(isnull(prv_prn,0))as prv_prn from loan_transaction_mcg where loan_id='1117'";
It is giving the result as on Sql
  1. prn_amount =NULL
  2. adv_prn =NULL
  3. prv_prn ...

48. Comparing resultsets in jdbc    stackoverflow.com

In my java code i have two resultsets rs1 and rs2 obtained as follows :

rs1 = statement.executeQuery("select * from tableA")
rs2 = statement.executeQuery("select * from tableB")
Both the tables have the same schema ...

49. writeAll(ResultSet res,Boolean b) method of opencsv adds double quotes around data    stackoverflow.com

When I use this function to write to a csv file all the data is embedded in double quotes. Is there a way to write to csv file without the double quotes?

CSVWriter ...

50. How to get the first element in ResultSet    stackoverflow.com

How to get the first element in ResultSet in the following code:

    public List getUserTest(String username, String password) {

    List userList = new ArrayList();


  ...

51. Need help for ResultSet in java    stackoverflow.com

I am using a ResultSet to retrieve data from my SQL server. The code looks as follows:

ResultSet rs = getValueFormTable();
I'm looping over the ResultSet like this:
do{
 ...

52. best way to Compare 2 resultsets    stackoverflow.com

Im trying to compare 2 resultsets.. There are 2 results sets rs and rs1.They are fetched from the same table running in different instance of DB ie rs has the value of "SELECT ...

53. getting DateTime from ResultSet in JdbcTemplate    stackoverflow.com

in database my column is of type TIMESTAMP, so my class has properties of type Datetime like this:

public void setDiscoveryDate(final DateTime discoveryDtTm) {
        this.discoveryDtTm ...

54. How to define nulls for @Id field in Resultsetmapping?    stackoverflow.com

I have a query like this:

SELECT sender, sum(size) AS size,COUNT(*) AS count FROM inmail 
WHERE  ( date > '2011.06.01' AND w.l_date < '2011.06.10' ) 
GROUP BY sender ORDER BY count ...

55. Netbeans Java Storing ResultSet In Variable    stackoverflow.com

I'm using Netbeans and I want to store ResultSet results into an Integer variable, may I know if it is possible? Currently I'm trying all sorts of ways to store it in ...

56. Efficient way to Handle ResultSet in Java    stackoverflow.com

I want to handle this issue very badly. I have a resultset in java and i am facing the problem of not closing it. I want to get over this issue ...

57. Fill Class from jdbc ResultSet    stackoverflow.com

Now im filling my classes like this:

Part part = new Part();

ResultSet rs = statement.executeQuery();
part.setBrand(rs.getString("P_BRAND"));
part.setComment(rs.getString("P_COMMENT"));
part.setContainer(rs.getString("P_CONTAINER"));
part.setMfgr(rs.getString("P_MFGR"));
part.setName(rs.getString("P_NAME"));
Is there another and fast way to fill part object? Something like that method(Part.class, part, rs) and returns an ...

58. How to catch constraint violation inside the resultset loop?    stackoverflow.com

I was working on a servlet that will generate a unique code and update that in a mySQL database. Now, in that, I want to catch any exception thrown in case that ...

59. BufferedReader.readLine() from a socket in Java stuck    stackoverflow.com

I will try to explain my problem in detail. Feel free to ask if you need more details. I have a multi-client/server connection threaded by Java sockets. All the exchanges operate according ...

60. Regarding ResultSet    bytes.com

62. best way of working that ResultSet?    forums.netbeans.org

Hello .. white my name is jose I am from Colombia, is a pleasure and honor to be in this forum. My question is this, I am somewhat new to this software development, study and analysis of software development and we are currently high school with two technologies that are Java and. Net. In data access. Net use the DataSet that ...

63. Java 2SE - mapping ResultSet to custom Object    forums.netbeans.org

Hi I am struggling to map the output of a ResultSet accessing a Java DB database to a Java Object. I've picked up several examples but none work. I would like some guidance on what is correct way to do this and also some pointers on why the following dont work. The following elements of the code does work, as does ...

64. Making ResultSet unEditable    coderanch.com

65. returning a resultset in rmi    coderanch.com

66. Can i return Resultset in rmi???    coderanch.com

67. ResultSet over a socket    coderanch.com

68. rmi and resultset    coderanch.com

70. Resultset over an output/input stream    coderanch.com

Hello, I hava an issues with a program i am writing. It is a client/server with a database (3 Tier) The majority of requests are related to SQL Select statements. The purpose is to for instance type in a name on a GUI on the client side and return results relating to that name. The client and the server are setup ...

71. How to create flate from Resultset?    coderanch.com

72. ResultSet question    coderanch.com

Paul, Don't you have to do a rs.next() anyway at some point to get your data? If you don't need the data (and only want to know if the query returns results) try doing: select count(*) from ... This should be faster because there is less network activity. If you do need all the fields, you need to optimize your query ...

73. A ResultSet within a Result Set    coderanch.com

Hi. I am new to JDBC programming, and am running into what is probably a very basic problem. Bascially, what I am trying to do is first run 1 query on the database. Then, while iterating through the resultset, I want to use what's in that first result set to run another query on the database. What is happening is that ...

74. JDBC-SQL- resultset retreival    coderanch.com

I have a problem.I got the user defined type of variale in MS SQL for a filed 'material_qty' the data type of the field is of type 'QTY' which is an integer. when I an retieving it through rs.getInt('material_qty') then it gives an exception -'Invalid descriptor Index'.Can you please help me & let me know that how should I retrive such ...

75. ResultSet problem !!!    coderanch.com

"Liviu", The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp . We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please log in with a new name which meets the requirements. ...

76. process resultset    coderanch.com

77. ResultSet Fnction    coderanch.com

Hi Srini I do not think the container in which u run has any effect on the functions of recordset. u have to implement a fully scrollable recordset if u req previous,last... functionality for recordsets. Pass appropriate arguments in the createStatement(). for ex con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE); Now u can user the previous,last,first methods after opening the recordset. Hope this helps Hemanth

78. HANDLING RESULTSET    coderanch.com

Hi all, i am having a small issue which is as follows: After an execute query the datas are in the resultset and to access them we scroll through the resultset using the next() method for every row but this is a time consuming affair more so since we have to handle a large volume of data and is almost taking ...

79. ResultSet    coderanch.com

Dear Mini, This is why you are not seeing the first row: if (arResultSet.next()){ while (arResultSet.next()) { The first next() moves to the first row. You don't do anything with it, the second next() moves to the second row, then you do some processing. So you have to process the first row also. You could change you code to: if (arResultSet.next()){ ...

80. getting first element of Resultset    coderanch.com

81. Scrolable ResultSet    coderanch.com

Hi, wrox's Professional Java Server Programming J2EE says TYPE_SCROLL_INSENSITIVE : supports scrolling both directions. TYPE_SCROLL_SENSITIVE: This result set of this type is sensitive to updates made to the data after the result set has been populated. For instance, if your result set returns 10 rows, and if another application removes 2 of the rows, your result set will only have 8 ...

83. displaying resultsets in page wise    coderanch.com

84. Executing one resultset inside another    coderanch.com

Hi all, My problem is something like this. I have a Master table and a Transaction table. I am executing a query which retrieve all the Ids from Master table and then as the Ids are getting from resultset i want to fire another query (while the first resultset is executing) which gets data from Transaction table if it has the ...

85. ResultSet    coderanch.com

86. Maintaining an open resultset after commit    coderanch.com

I'm using the default JDBC-ODBC driver to connect to SQL2K. I'm trying to open a result set ... and then do a couple of INSERT/UPDATE operations based on the data and commit after each record in the result set. The problem is the resultset will close if I commit (seems to be the default behaviour of the JDBC-ODBC driver?). How can ...

87. resultset    coderanch.com

It is my understanding that the resultset only persists as long as the connection to the db, is there any way to get around that? or do I need to create my own resulset class without this restriction and dump the data in there. or am I totally lost? thanks a lot in advance for any help jesse

88. problem in the resultset    coderanch.com

89. automatic updation of resultset    coderanch.com

I understand that you are trying to establish database connectivity through applet. This would mean that DSN shall be created on all the user machines ( wrong approach ) or use JNDI services of the server. I do not know How you are implementing it. If the applet is not displaying lot of information then you can use socket to get ...

90. ResultSet Serailization    coderanch.com

91. Serializing ResultSet    coderanch.com

92. Exhausted ResultSet!    coderanch.com

Hi Dip! I really appreciate your replies. thanks! I'm sorry but I didn't understand your last post. I better explain further what I'm doing. I'm using servlets and I'm trying to incorporate a connection pool. I test my connection pool by using 2 computers to access data simultaneously. Everytime I do this I encounter Exhausted Resultset and protocol violation. Can you ...

94. assigning ResultSet.getDate()    coderanch.com

I'm having trouble with dates too! This is my code (almost feels like a work-around though) //will return date and time java.util.Date ct = (java.util.Date)r.getTimestamp(2); //will return date only java.util.Date ct = (java.util.Date)r.getDate(2); //to format to a String SimpleDateFormat formatter2 = new SimpleDateFormat ("yyyy.MM.dd G 'at' hh:mm:ss a zzz"); String ct2 = formatter2.format(ct); System.out.println("result : "+ ct2); // will print "result ...

95. When is the data in the resultSet brought over ?    coderanch.com

Hi, Could somebody explain this. Assuming I'm running this query at host1 and the database resides at host 2 and the number of rows in the rowset is 1000. - When is the data in the resultSet brought over to host1 ? - is it at *1* ? - at *2* but only 1 row ? - at *2* but the ...

96. No resultset    coderanch.com

97. resultset problem    coderanch.com

/* HERE IS MY CODE */ import java.sql.*; import java.io.*; public class oracle_mysql_demo { public static void main(String args[]) { try { DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); Connection con1 = DriverManager.getConnection ("jdbc racle:thin:@64.240.98.211:1521:cricket","boli","boli"); Statement st1=con1.createStatement(); Statement st3=con1.createStatement(); Statement st5=con1.createStatement(); Class.forName("org.gjt.mm.mysql.Driver").newInstance(); Connection con2 = DriverManager.getConnection("jdbc:mysql://localhost/Team"); Statement st2 = con2.createStatement(); Statement st4 = con2.createStatement(); Statement st6 = con2.createStatement(); ResultSet r1 = st1.executeQuery("Select * from uma_example"); ResultSet ...

98. JDBC ResultSet    coderanch.com

99. ResultSet problems    coderanch.com

Hi, Got a little problem. I use the following method call to access a MySQL DB. Prior to executing this method, other DB calls work. I printout connection vars,statement var to see if there is anytthing allocated and they are. I can access this table just prior to set the user_id. I want to simply retrieve it based on username. I ...

100. Need urgent help with ResultSet    coderanch.com

Hi I have a servlet, that inserts parameters in a database. Its a kind of guestbook, I Select the entreis from the table and want to print them out, an entry, an HR, the next entry. Heres a code snippet: Vector entries = new Vector(); entries.add(rs; rs.executeQuery("SELECT name FROM actor"); for(int i=0; i while(rs.next(){ out.println(name) } } The problem is, ...