1. How often should Statement and ResultSet objects be closed in JDBC? stackoverflow.comDo they need to be closed after each query and initialized at the beginning of each query? |
2. JDBC ResultSet closed statement stackoverflow.comI'm trying to write a function that updates 2 tables in my database. I'm getting an error which i think is caused by calling next() on a resultset that has no ... |
3. Resultset Mapping Returns null, SQL statement doesn't stackoverflow.comI have an SQL statement like this: |
4. Closing Resultset and statement stackoverflow.comCan any one help on the issue encountered in the following piece of code. It seems that DB connection is lost when trying to execute the query in section 2. |
5. How to close the statement object in the method that returns a resultset coderanch.comhi, i have a database class which does all my database operations. I am using connection pooling. One of my function is executequery which takes in the SQL query as a parameter and retuns the Resultset. Now the problem is that i am able to release the connection but i am not able to close the statment object. If I close ... |
6. When to close Statement & ResultSet? coderanch.comHallo, is it a general solution to always close the Statement- and ResultSetobjects after you get what you want(executing the statement and iterating through the resultset)? What would happen if I "fail" to close either of them? In my webapp I execute a number of statements and I just discovered I never close them or the resultsets. BUT, it works fine ... |
7. Statement, ResultSet coderanch.com |
8. Closing ResultSet and Statement coderanch.comI am cleaning up/debugging the following code: stmt = conn.createStatement(); stmt.execute(some_select_query1); rs = stmt.getResultSet(); // ..... some code that uses rs .... stmt.execute(some_select_query2); rs = stmt.getResultSet(); // ..... some code that uses rs .... My question is: does the code leave hanging resultset objects? Does it need rs.close() before each 'rs = stmt.getResultSet();' What is your opinion/experience on that? Thank you. ... |
9. problem : callable statement / COBOL services How to get ResultSet(s) coderanch.comLO For a professionnal project i have to work with DB2 data returned by COBOL services. These COBOL services take several blocs in input and several blocs in outpout. I call one callable statement calling the needed COBOL services. like this : st = con.prepareCall("{call TI01.PCPSTK01 (?,?,?,?,?,?)}"); st.setString(1,service+new String(new char[32])); st.setString(3,inputString); st.registerOutParameter(2,Types.VARCHAR); st.registerOutParameter(4,Types.VARCHAR); st.registerOutParameter(5,Types.VARCHAR); st.registerOutParameter(6,Types.VARCHAR); st.execute(); /* ResultSet rs = st.getResultSet(); ... |
10. JDBC Callable Statement JConnect2 Returning null resultset coderanch.comStored Procedure for implementing pagination Transact-SQL CREATE PROCEDURE dbo.pr__Get_Employees @endindex Int, @pagesize Int AS BEGIN Create table #temp_cws(id numeric(5) identity, name varchar(100)) Insert into #temp_cws Select name From EMPLOYEE Select e.name, e.* from #temp_cws t, EMPLOYEE e WHERE (t.id > @endindex - @pagesize And t.id <= @endindex) AND e.name = t.name END When I call this procedure from Java program I ... |
11. Closing ResultSet and Statement coderanch.comAlec, If you are using the same SQL each time you create a "PreparedStatement", then I agree with everything Sonny said. I think he has given you good advice. However, if you are using many, different SQL statements in your "for" loop, then you probably need to create separate "PreparedStatement"s for each SQL statement. Good Luck, Avi. |
13. Bug in JDBC ? Simple Select statement not returning a resultSet coderanch.comHey guys! Background info: The database is a Microsoft SQL Server 2008 The java program is running on a Windows 2003 Server 64 bit I'm using the latest verison of java off of oracles site My problem is that I'm not getting a resultset when executing a SQL-statement, I really just can't figure out why. Executing this string in the Microsoft ... |
14. Callable Statement Resultset coderanch.comThanks Phil and Grdihar That's what I realized that executeQuery won't work. Following on number 2 from Philip. My problem is that I have to return a ResultSet object to a client software and it blows up when it receives a null value. I want to make sure that I return a non null resultset value. Apparently from your reply, I ... |
15. Strange behaviour of If statement inside an Array derived from ResultSet java-forums.orgFirst of all I say Hello to everyone; I'm new here ! My problem: I can't understant why if-else-statemnt does not work inside an array derived from a database ResultSet. I can connect to the database (Ms Access). I can retrieve the data from the database and populate the arrays. I can print all the record and every field is correct. ... |
16. ResultSet and Statement objects - are they REALLY closed??? forums.oracle.comThese database objects are associated with resources other than heap memory. A ResultSet, for example, is associated with a database cursor, which uses resources inside the database server. The point of the close call is to release these resources, not the ResultSet object itself. Once closed the object still exists until it becomes unreachable and is eligible for garbage collection in ... |
17. One ResultSet per Statement? forums.oracle.com |
18. Method for repeated ResultSet statement forums.oracle.com |
19. Does If-statement work correctly in arrays retrieved by database ResultSet? forums.oracle.comI can't understand why in the second code it works .. but i dont care !!! The second code is working because you define the values at declaration time. So compiler takes/consider it as constants. You can re-test the code by defining the values in below way, now '==' will not work: String[] isGeoLocalized = {new String("ok"),new String("no"),new String("ok"),new String("no")};// after ... |