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Last Activity: Apr 7 '08, 05:03 AM
Joined: May 4 '07
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i have checked it again, and for sure it contains data.... -
amitpatel66, thanks a lot for your reply.
i tried the way that you told, but it gives the same error (no data found)...Leave a comment:
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no data found error in an "execute immediate" statement
i dont know why pl/sql block below returns no data found error.
do you have any idea about it?
Code:declare c1 varchar2(80); c2 varchar2(80); begin execute immediate 'select col2 from table1 where col1=:c1' into c2 using 'AAA'; end; /
here is the definition of table:
...Code:CREATE TABLE TABLE1 ( COL1 VARCHAR2(80 BYTE), COL2
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problem after java sdk installation (jvm cannot be found)
although i installed java_ee_sdk-5_03-windows.exe into C:\Sun\SDK
withouth any problem.
i get the following error:
C:\Documents and Settings\st>jav a -version
'java' is not recognized as an internal or external command,operabl e program or batch file.
PATH environment variable is automatically set during this installation
PATH=C:\Sun\SDK \bin
what can be the problem?
i also... -
as far as i understand from your comment you say that:
jdk consist of: compiler and jvm
sdk consist of: compiler and jvm and an editor
but the download options are:
sdk with jdk
and
sdk without jdk (in this case do we download only an editor? )...Leave a comment:
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jee sdk without jdk ?
on the web site of sun there is a jee sdk download option like this:
dowload sdk without jdk? and you can download this binary : java_ee_sdk-5_03-windows-nojdk.exe
what is the difference between sdk and jdk, i used to think that they refer to the same thing. but then what does an sdk binary with name like
java_ee_sdk-5_03-windows-nojdk.exe mean?
i am confused
here is the link:
h... -
Newbie questions for J2EE environment (Eclipse and Tomcat)
I am very new to j2ee applications and i need some help to set up my environment.
I have some questions:
1-Can i use classical eclipse by adding j2ee.jar to the classpath to create dynamic web application?
2-Are classical eclipse and eclipse web tool related to each other and working together, or are they totally seperate IDEs ?
3- if i am using Eclipse Web Tools IDE, then do i have to do any arrangement... -
ODBC vs Oracle PreCompiler
what is the relation and difference between
ODBC and Oracle PreCompiler and OCI (Oracle Call Interface) ? -
NetBeans IDE 5.5
Hello, i compiled and run the simple hello world application using Netbeans 5.5 and i got the following error:
ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2
JDWP exit error AGENT_ERROR_NO_ JNI_ENV(183): [../../../src/share/back/util.c:820]
what can be the problem? jre version is: 1.6.0_03 -
i am still unclear with the answers of the questions in the 1st post.
and this last explanation introduced a new question:
if JDBC use ODBC, then what is the difference between JDBC and JDBC-ODBC bridge?...Leave a comment:
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odbc jdbc
"The designers of ODBC aimed to make it independent of programming languages, database systems, and operating systems."
(http://en.wikipedia.or g/wiki/ODBC)
1- Does it mean that all (or most) programming languages can connect to a database directly using ODBC?
or should there be a converter between programming language and the ODBC?
for example how can we connect to oracle or mysql with an application... -
is null a keyword in java
is null a keyword in java?
in the book "Programmer 's Guide to Java Certification, A: A Comprehensive Primer, Second Edition" by By Khalid A. Mughal, Rolf W. Rasmussen
null true false are listed in the "Reserved Literals in Java" table not in the
"Keywords in Java" table.
but in the mock exam of the same book answer of one question is given as:
"Java has a keyword... -
event handling
hi,
for an event handling mechanism,
we need an event object. (the object where the event actually occur)
and we need an event handler,
and we need a registration of the event handler to the event object(generato r)
in java, we can create a generator class by extending EventObject class.
we can create an event handler class by implementing EventListener interface.
for registration we... -
thanks a lot for the quick reply.
i corrected line 22, now its ok,
but still i have the "text cannot be resolved" error on line 8 of the code for the 2nd class. whats the problem here?
and i am using eclipse, do you think that i should worry about compiler flags?Leave a comment:
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problems in a simple GUI application
i have two classes located in default package, and i got the following errors:
for the 1st class on line 22: ActionClass cannot be resolved
for the 2nd class on line 8: text cannot be resolved
for the first error, the two classes are public and stays in the same package so why cannot see each other?
for the second error, text variable has no access modifier (friendly access),
so it should be seen... -
thanks for your reply.
one more question, what is the full list of classes imported implicitly?
all classses in java.lang package?Leave a comment:
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multithreading without importing Thread class
how can a multithreaded code can be compiled succesfully without importing Thread class?
the example below is taken from marcus green mock exam 1:
...Code:public class Rpcraven{ public static void main(String argv[]){ Pmcraven pm1 = new Pmcraven("One"); pm1.run(); Pmcraven pm2 = new Pmcraven("Two"); pm2.run(); } } class Pmcraven -
problem with java syntax
i didnt understand the syntax in the code below at line 3.
there is an object creation of type Thread but the stament dont have any
terminating semi-colon, instead there is a block opening.
and the block ends at line 12.
what kind of syntax is this? is there anybody to explain me?
(i guess it that this is not an advance topic, it is likely to be related with basics of java, but i could not figure out)
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static local variables
as far as i know we can declare static local variables in C++,
cannot we do the same thing in java? -
getting table definitions via jdbc
hi,
is there anyway to get the definitions of tables in MySql using java programming?
i want to get the info like: how many columns does the table have, what are the names of the columns, data types of the columns etc...
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