null « Resultset « Java Database Q&A

1. Handling the null value from a resultset in JAVA stackoverflow.com

I currently have a resultset returned and in one of the columns the string value may be null (i mean no values at all). I have a condition to implement like ...

2. about Null in ResultSet coderanch.com

hi friends, i needs ur help. how to check wheather Result is null or Not.i have written a query which is selecting data from table with one condition. if there is none of a record satisfied the condition it should be returned null. how to check that one? any one knows please let me know with example. thanks a lot friends... ...

3. Determining null resultset coderanch.com

Hi - I have my application working and I am now validating user input etc. This application takes the text output of a genetics test and inserts the rows into a Oracle DB. Part of this process requires that I check that a locus name is currently in the database and then look up some genetic information. I am trying to ...

4. Why resultSet is null? coderanch.com

5. ResultSet is null coderanch.com

Originally posted by Jeanne Boyarsky: I think Dave meant more specifics about the driver. What company made it? What is it called? Hi Jeanne. Dont know much about the driver. Infact I haven't downloaded this myself. This is given by one of my work place colleague. The file called db2jcc.jar and I am using type 4 driver. I have tried to ...

6. null resultset coderanch.com

I am calling a stored procedure from a java program as follows: CallableStatement st=null; ResultSet rs=null; ArrayList al= new ArrayList(); try{ st=con.prepareCall("{call VIVP538(?,?,?,?,?)}"); st.setString(1,uniqueId); //TODO check this logMan.info(mName, "first input param for VIVP538:::"+uniqueId+":"); st.registerOutParameter(2,Types.CHAR); st.registerOutParameter(3,Types.INTEGER); st.registerOutParameter(4,Types.CHAR); st.registerOutParameter(5,Types.CHAR); boolean b = st.execute(); String outparam = st.getString(2).trim(); logMan.info(mName, "after running VIVP538. status:::"+outparam); rs=st.getResultSet(); logMan.debug("got the resultset"); if(rs == null) { throw new Exception("The ...

7. resultset return null coderanch.com

when i try to get Name1 like this String Name1=resultset.getString("Name1"); it will return Name1 with out any problems but when i try to get Name2 like this String Name2=resultset.getString("Name2"); it will return null although name2 is contain "essam" in DB from your code i can suggest that: check for the following changes: 1.check for the column name in the database that ...

8. ResultSet object returning null coderanch.com

9. getting Null resultset for a prepareCall java-forums.org

Hi i am trying to get resultset after running a procedure.When i do it from the database it is giving out the result but when i do it from JDBC it gives me null result set.I am using sql server. There are some inserts in the procedure before a select which returns a resultset . i am not sure if it ...

10. How to validate whether is ResultSet is null or not forums.oracle.com

This code will not work,You should not assign string to ResultSet. I have a sample code for you to read from database, using this you will not need to validate the ResultSet.But if you have a requirement then you can write if(rs != null) { //ResultSet not null } else { //ResultSet is null } Program to read from database. public ...

11. Null ResultSet forums.oracle.com

Yes. Well, don't do that. Read the API and you will see that those methods will never return a null resultset. They will either return a resultset (which may have 0 rows) or will throw an exception (thereby, of course, returning nothing). It is when you ignore those exceptions and blindly continue that you get these sorts of problems. Fix that ...