SmartView 11.1.2 - Multiple Connections
Can I connect to multiple database connections in multiple worksheet in one workbook in SmartView 11.1.2
Functions are well covered in the doc's. Here is a link to a blog on function grids.
http://essbaselabs.blogspot.com/2009/11/leveraging-excel-2007-features-in-smart.html
Similar Messages
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Shall I use one datasource for multiple connection pool?
Hi,
I need to clarrify that, Shall I use one Datasource for multiple connection pool in distributed transaction?
Thanks with regards
SureshNo. If its transactions across multiple databases you should use different datasources.
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Multiple connections for the same user.
I have EJB A and EJB B. A and B use a JCA connector that
I have written. I have matchManagedConnections set so that if user U has not used EJB A or EJB B, then a new ManagedConnection is created. If user U has used A or B then that user is given a new virtual connection created from an existing ManagedConnection. Now the problem is that if user U access' A for the first time and then access' B BEFORE A has closed the connection, then a new ManagedConnection is created for user U. Therefore in this case user U gets 2 ManagedConnections to the EIS that we are using. Eventually one of the ManagedConnections is distroyed but I would like to eliminate this in the first place. How do a get Weblogic to see that a user has a ManagedConnection before that user is done with the connection.You can't have multiple roles on multiple connection, as you are connecting to the same website (different sub directories) ultimately.
Here is the workaround:-
You can create a new user account on your machine and can manage different roles.
Hope it helps. -
How to handle multiple connection or user with l2cap
hi friends,
I need your help please a.s.a.p
how to handle multiple connection with l2cap protocol in j2me
sorry,
I'm a new programmer in j2me
thanks all...Please stick with the original thread http://forum.java.sun.com/thread.jspa?threadID=5200413&tstart=0
Cross-posting is very rude, and JSch has nothing to do with JSSE, directly. It is an SSH2 API. It does (AFAIK) use some parts of JSSE, but those parts are definately not your problem.
You already have answers in the other thread. -
Multiple connections in one project
Hi,
Is there perhaps some kind of a document describing a 'best practice' for using multiple connections in a ADF BC application. One connects to an oracle DB another to a SQLServer.
I suppose I need to create two different services? Anybody having experience with this?
Regards,
Koen VerhulstAmong other things, the BC4J Configuration defines the name of the JDBC connection to use. To solve your problem, you can create two Configurations one for each database. The JDBC connection value will be the only different element between these two Configurations. To create a BC4J Configuration in JDeveloper, right click on the AppModule node and then click Configurations...,
Use oracle.jbo.client.Configuration class to create AppModules connected to the database you want.,
import oracle.jbo.*;
import oracle.jbo.client.Configuration;
String am = "demo.DemoModule"; // Fully-qualified application module name
// Configuration name with JDBC connection to source database
String cf1 = "DemoModuleSourceDb";
ApplicationModule amSrc = Configuration.createRootApplicationModule(am,cf1);
// Configuration name with JDBC connection to dest database
String cf2 = "DemoModuleDestDb";
ApplicationModule amDest = Configuration.createRootApplicationModule(am,cf2);
Note that the AM name can also be different if you want.
Hope this helps,
Sathish.
I want to access several Databases from one BC4J-Project.
For example I want to write an application, which collects data from one database, does some computation and stores the results in a second database.
I would prefer to use BC4J-Components for both, the source and the target database, but unfortunately I can select only one connection per BC4J-Project.
Has anyone got an idea, how I can access more than one database-connection from one BC4J-Project without having to write all the JDBC-Stuff on my own? JDev-Team, can you please give a hint? -
Multiple connection pools in the same DB physical source
Hi, I have this situation in BI Admin:
A single DB with 2 physical schema and 2 Connection Pools with OCI 10/11g.
Clicking on any table I can see the data after selecting the right connection pool for that table.
I created a Business Model based upon tables from one of the 2 physical schemas and a corresponding presentation layer. It is consistent and I can view the related subject area in Answers, but when I select a Dimension column (CONVERGENZA_NEGOZIO.STATO) and the fact measure ( Convergenza_Fact.INCASSO ) in viewing results I get this error:
Odbc driver returned an error (SQLExecDirectW).
Error Details
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 17001] Oracle Error code: 942, message: ORA-00942: table or view does not exist at OCI call OCIStmtExecute. [nQSError: 17010] SQL statement preparation failed. (HY000)
SQL Issued: SELECT CONVERGENZA_NEGOZIO.STATO saw_0, Convergenza_Fact.INCASSO saw_1 FROM Convergenza ORDER BY saw_0
Is it caused by the multiple connection pools under the same DB?Yes I think that's correct, but only if you're going to use the same user to connect to them.
If you have a single user you're using to connect to a database to read data which happens to be over more than one schema, you'd use one connection pool.
However if you have entirely separate schemas (eg. different applications) and need to use a different user for each then you would use one connection pool per schema. Also if you thought you might move one of the schemas to another physical database at some point in the future it might be prudent to use a separate connection pool from the outset.
If you're still getting the error that the table cannot be found and your users have full permissions then logically the table that's being looked for does not exist, or you have not qualified it. What I mean by that is if you are connecting as USER2 and SELECT * FROM TABLE_A then the database will assume that you mean USER2.TABLE_A. If you mean USER1.TABLE_A then you need to make sure the qualification is in there.
In the admin tool check your Physical layer is set up correctly with your Physical Tables residing in the correct Physical Schemas. -
Multiple connections or multiple sessions preferred
Hi All,
Is it better to create multiple connections for each sender/receiver or single connection but multiple sessions for each sender/receiver? Assume in my case that there are about few hundred receivers. Thanks.Edit : Sorry, bad answer.
Edited by: Jerome M. on 3 févr. 2011 01:11 -
Multiple connections/roles on same machine for same site?
As a Contribute CS3 Administrator (newbie; just converted a
Dreamweaver site to work with Contribute), can I set up multiple
connections to the same site? I want to test the Publisher role and
Writer role on my development machine before creating connnection
keys for these roles for the customer who owns the site (and is
waiting with new Contribute licenses and eager but idle staff)?
I just want to be able to test my site under these roles
(using different passwords and username/email addresses), but there
seems no obvious way to do this as Contribute seems to allow me to
set up only one connection per URL, and also seems to want to wipe
out my existing Admin connection if I come on in another role (from
a connection key generated for a Publisher or Writer role).Two problems with that:
1. Tried it by creating a connection key for a Publisher
role, but invoking the key zaps the old connection, so I no longer
have Administrator access without deleting then re-creating the
connection and setting myself up as Admin again.
2. When I went into the (new) connection as Publisher, it
would let me connect and see pages, but would NOT allow editing of
any pages (even though I had specifically looked when originally
defining the role to make sure all editing privileges were -- or
appeared to be -- intact). -
URGENT:Handle multiple connection in a multithreaded server.
I hava a multithreaded server where it can handle multiple connection.
The program works in this way. First, it will wait for connection. Once it accepts a connection, it will pass the socket to a thread class which will in turn process the connection. Then, the server will go back to the infinite loop to wait for new connection.
Since I am not very familiar on using thread, I would like to post the following questions:
1) Let say that my server can handle multiple connections. This is to cater for the different requests from the client. For instance, the client may make one connection for chatting and another connection for sending file(something like we have in Yahoo Messanger). So, at the server side, how can I differentiate between the connection for CHAT and the connection for SEND FILE so that I can handle the requests separately. It means I can save the file sent from client and display the chat message in the JTextArea?
2) How can I stop the server, clean up the thread and start the server again for waiting new connection? Currently, I can just start my server once.
For reference,following are parts of my program:
public void listenSocket(){
try{
server = new ServerSocket(5000);
} catch(IOException e) {
System.out.println("Failed to listen on port 5000");
System.exit(0);
try{
while(true){
server1frame sframe=null;
ChatHandler handler;
handler = new ChatHandler(sframe,server.accept(),jTextArea1,jTextField1,jFileChooser1);
handler.start();
} catch(IOException e) {
System.out.println("Accept failed:5000");
System.exit(0);
//to close the connection as the final steps before program exit.
} finally {
try{
server.close();
} catch (IOException ioe) {
ioe.printStackTrace();
public void run() {
out.println("Connection Established");
out.flush();
try {
String line;
while(!(line =in.readLine()).equalsIgnoreCase("QUIT")) {
if(line.startsWith("CLIENT"))
jTextArea1.append("\n"+line);
else if(line.startsWith("Connecting")) {
jTextArea1.append("\n"+line);
else if (line.startsWith("Finish")) {
JOptionPane.showMessageDialog(sframe,"File has finished downloading",
"File Download Complete",JOptionPane.INFORMATION_MESSAGE);
else {
BufferedWriter fout = new BufferedWriter(
new FileWriter("e:/num1.txt",true));
fout.write(line);
fout.newLine();
fout.flush(); }
} catch(IOException ioe) {
ioe.printStackTrace();
} finally {
try {
in.close();
socket.close();
} catch(IOException ioe){
System.out.println("Fail to close connection.");1) Let say that my server can handle multiple
connections. This is to cater for the different
requests from the client. For instance, the client may
make one connection for chatting and another
connection for sending file(something like we have in
Yahoo Messanger). So, at the server side, how can I
differentiate between the connection for CHAT and the
connection for SEND FILE so that I can handle the
requests separately. It means I can save the file sent
from client and display the chat message in the
JTextArea?Either your server listens on two different ports for two different protocolls, (then you would a server thread for each port) or you accept connections for both protocolls on both ports, and have the client state what protocoll it is using :
eg:
accept Connection - start new Thread - read first line - depending on protocoll pass protocoll object (CHAT, FTP) to run method
There is an example for a simple protocoll at : http://java.sun.com/docs/books/tutorial/networking/sockets/clientServer.html
2) How can I stop the server, clean up the thread and
start the server again for waiting new connection?
Currently, I can just start my server once.You normally start servers only once. It should then be up and listening for it's entire lifetime. Restarting a server should only be needed if it hangs or crashes. -
ODI error-THIS CLAUSE USES MULTIPLE CONNECTIONS AND THEREFORE CANNOT BE EXE
Hi John,
I have tried loading the smartlist values and the following error is encountered.
THIS CLAUSE USES MULTIPLE CONNECTIONS AND THEREFORE CANNOT BE EXECUTED ON THE SOURCEHi John,
I am still facing the some problem.
I have updated the join with the expression like yours
then ran the interface
The exception is as follows
org.apache.bsf.BSFException: exception from Jython:
Traceback (innermost last):
File "<string>", line 26, in ?
java.sql.SQLException: Table not found: EXCEPTION in statement [select C1_PERIOD "Period",C2_ACCOUNT "Account",C3_ENTITY "Entity",C4_EMPLOYEE "Employee",C5_YEAR "Year",C6_SCENARIO "Scenario",C7_VERSION "Version",'Local' "Currency",'HSP_InputValue' "HSP_Rates",CASE WHEN C10_ENTRY_ID IS NULL
THEN C8_DATA
ELSE C10_ENTRY_ID
END "Data" from "C$_1Totplan_WrkforceData" left outer join "C$_0Totplan_WrkforceData" ON C8_DATA=C11_NAME
AND C9_ENUMERATION_ID=
(SELECT ENUMERATION_ID FROM Exception]
at org.hsqldb.jdbc.jdbcUtil.sqlException(jdbcUtil.java:67)
at org.hsqldb.jdbc.jdbcStatement.fetchResult(jdbcStatement.java:1598)
at org.hsqldb.jdbc.jdbcStatement.executeQuery(jdbcStatement.java:194)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java)
at org.python.core.PyMethod.__call__(PyMethod.java)
at org.python.core.PyObject.__call__(PyObject.java)
at org.python.core.PyInstance.invoke(PyInstance.java)
at org.python.pycode._pyx5.f$0(<string>:26)
at org.python.pycode._pyx5.call_function(<string>)
at org.python.core.PyTableCode.call(PyTableCode.java)
at org.python.core.PyCode.call(PyCode.java)
at org.python.core.Py.runCode(Py.java)
at org.python.core.Py.exec(Py.java)
at org.python.util.PythonInterpreter.exec(PythonInterpreter.java)
at org.apache.bsf.engines.jython.JythonEngine.exec(JythonEngine.java:144)
at com.sunopsis.dwg.codeinterpretor.k.a(k.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.scripting(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.execScriptingOrders(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.execScriptingOrders(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTaskTrt(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSqlI.treatTaskTrt(SnpSessTaskSqlI.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java)
at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java)
at com.sunopsis.dwg.cmd.DwgCommandSession.treatCommand(DwgCommandSession.java)
at com.sunopsis.dwg.cmd.DwgCommandBase.execute(DwgCommandBase.java)
at com.sunopsis.dwg.cmd.e.i(e.java)
at com.sunopsis.dwg.cmd.h.y(h.java)
at com.sunopsis.dwg.cmd.e.run(e.java)
at java.lang.Thread.run(Unknown Source)
java.sql.SQLException: java.sql.SQLException: Table not found: EXCEPTION in statement [select C1_PERIOD "Period",C2_ACCOUNT "Account",C3_ENTITY "Entity",C4_EMPLOYEE "Employee",C5_YEAR "Year",C6_SCENARIO "Scenario",C7_VERSION "Version",'Local' "Currency",'HSP_InputValue' "HSP_Rates",CASE WHEN C10_ENTRY_ID IS NULL
THEN C8_DATA
ELSE C10_ENTRY_ID
END "Data" from "C$_1Totplan_WrkforceData" left outer join "C$_0Totplan_WrkforceData" ON C8_DATA=C11_NAME
AND C9_ENUMERATION_ID=
(SELECT ENUMERATION_ID FROM Exception]
at org.apache.bsf.engines.jython.JythonEngine.exec(JythonEngine.java:146)
at com.sunopsis.dwg.codeinterpretor.k.a(k.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.scripting(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.execScriptingOrders(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.execScriptingOrders(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTaskTrt(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSqlI.treatTaskTrt(SnpSessTaskSqlI.java)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java)
at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java)
at com.sunopsis.dwg.cmd.DwgCommandSession.treatCommand(DwgCommandSession.java)
at com.sunopsis.dwg.cmd.DwgCommandBase.execute(DwgCommandBase.java)
at com.sunopsis.dwg.cmd.e.i(e.java)
at com.sunopsis.dwg.cmd.h.y(h.java)
at com.sunopsis.dwg.cmd.e.run(e.java)
at java.lang.Thread.run(Unknown Source)
Edited by: Sravan Ganti on May 4, 2009 6:07 AM -
Problems with multiple connections in the same transaction
Hi all !
I'm have two questions regarding the way weblogic handles multiple
connections.
1) first, I don't understand why weblogic always create a new Managed
Connection when I'm asking for 2 connection handles on the same connection
factory and with the same connectionRequestInfo. Isn't it supposed to share
connections ?
For instance, the following snippet of code results in the creation of 2
managed connections:
ConnHandle conn1 = myCF.getConnection(myRequInfo);
ConnHandle conn2 = myCF.getConnection(myRequInfo);
The class corresponding to myRequInfo does implement the equals and hash
method, so that weblogic's connection manager could use them to check that
the queried connections are the same, and thus could share a single
ManagedConnection between multiple connection handles. Apparantly it does
not do that...
2) OK, I just let weblogic create the 2 managed connections, but... My use
of the connections is as part of a transaction. Here is what happens:
ConnHandle conn1 = myCF.getConnection(myRequInfo);
// a new managedConn1 is instanciated. the following happens (just a
description)
// xar1 = managedConn1.getXAResource()
// xar1.start(NOFLAGS)
// I use the conn1 handle
conn1.close();
//xar1.end(SUSPEND)
ConnHandle conn2 = myCF.getConnection(myRequiInfo);
// a new managed connection managedConn2 is instanciated.
// xar2 = managedConn2.getXAResource();
// xar2.start(RESUME)
// I use conn2 handle
conn2.close();
// xar2.end(SUSPEND);
// my bean returns from the remote invocation
// the client of the bean asks to commit (using UerTransaction.commit on the
client side)
// xar2.end(SUCCESS)
// xar2.commit(onePhase=true);
// managedConn2.cleanup();
And that's all. So, as one can see, managedConn1.cleanup was never called.
When looking in the weblogic console, I can see that I have one connection
with 0 handle and one with 1 handle, deemed as still being in a transaction.
So, the conenction manager apparantly loses a managed connection during the
transaction. And it's very very bad because after a couple of transactions,
I'm running out of managed connections (I had set a limit of 10).
Any one has seen such a weird behavior ? Is this a problem on my side, or
weblogic's ? Thanks for your help.
Sylvain
I ran another test. This time I have a bean that makes use of a connector
once per method invocation. The bean method invoked is "sayHello" and it
gets a connection to the EIS, perform an operation on it and release it. The
connector I developed uses XA transactions.
My test client just calls 3 times myBean.sayHello().
I can distinguish two cases:
1) first, the client doesn't do transaction demarcation. In this case, since
the sayHello method is marked as requiring transaction, the folowing happens
in the bean:
// **** first invocation of the bean
connHandle = myCF.getConnection();
// managedConn1 is instanciated
// xar1 = managedConn1.getXAResource()
// xar1.start(NOFLAGS);
// managedConn1.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close()
// xar1.end(SUCCESS);
// the bean returns from its invocation
// xar1.commit(onePhase=true)
// managedConn1.cleanup()
// **** second invocation of the bean
connHandle = myCF.getConnection();
// managedConnectionFactory.matchManagedConnection is called. It returns the
managed connection (managedConn1) that is in the passed set
// xar1 = managedConn1.getXAResource()
// xar1.start(NOFLAGS);
// managedConn1.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close
// xar1.end(SUCCESS);
// the bean returns from its invocation
// xar1.commit(onePhase=true)
// managedConn1.cleanup()
// **** third invocation of the bean
connHandle = myCF.getConnection();
// managedConnectionFactory.matchManagedConnection is called. It returns the
managed connection (managedConn1) that is in the passed set
// xar1 = managedConn1.getXAResource()
// xar1.start(NOFLAGS);
// managedConn1.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close
// xar1.end(SUCCESS);
// the bean returns from its invocation
// xar1.commit(onePhase=true)
// managedConn1.cleanup()
2) second case : the client performs transaction demarcation. In that case,
the connection manager instanciates 3 managed connections, calls start/end
on each XAResource corresponding to each managed connection, calls commit
once, but also calls cleanup only once, leaving 2 lost managed connections
The client looks like this:
UserTransaction utx = context.lookup("javax/transaction/UserTransaction");
utx.begin();
MyBean myBean = ctx.lookup(".......");
myBean.sayHello();
myBean.sayHello();
myBean.sayHello();
utx.commit();
on the server the following happens:
// **** first invocation of the bean
connHandle = myCF.getConnection();
// managedConn1 is instanciated
// xar1 = managedConn1.getXAResource()
// xar1.start(NOFLAGS);
// managedConn1.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close()
// xar1.end(SUSPEND);
// the bean returns from its invocation
// **** second invocation of the bean
connHandle = myCF.getConnection();
// managedConn2 is instanciated
// xar2 = managedConn2.getXAResource()
// xar1.isSameRM(xar2) is called. returns true
// xar2.start(RESUME);
// managedConn2.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close()
// xar2.end(SUSPEND);
// the bean returns from its invocation
// **** third invocation of the bean
connHandle = myCF.getConnection();
// managedConn3 is instanciated
// xar3 = managedConn3.getXAResource()
// xar2.isSameRM(xar3) is called. returns true
// xar3.start(RESUME);
// managedConn3.getConnection gives a connection handle
connHandle.doSomeWork();
connHandle.close()
// xar3.end(SUSPEND);
// the bean returns from its invocation
// the client invokes commit on the UserTransaction
// xar3.end(SUCCESS);
// xar3.commit(onephase = true);
// managedConn3.cleanup();
And so, managedConn1 and managedConn2 got lost in the way...
What's more puzzling, it's that when monitoring my connector with the
console, I can see that there are 3 connections. 2 declared as still having
one handle used and being in transaction, and one not in transaction and
with 0 active handle. BUT when monitoring the JTA part of the server, I can
see that there has been 1 transaction that committed, and no connection is
"in flight" as the console says. So, on one side the console says 2 managed
connections are still part of a transaction while on the other it says that
no transactions are currently in flight.
Thanks for any kind of help on this very bizarre behavior.
Sylvain
-
Windows 2008 AD Sites and Services: Multiple Connection links between same sites
Hello,
Our AD Sites & Services is showing Multiple Connection links between the same sites. How is this possible and can i delete extra ones?Hi,
As Calin Liviu mentioned, you do not have to manage connection objects. In fact, changes that you make to connection objects that the KCC creates automatically are ignored.
If the site is added to more than one site link, it might be an interim site between other sites that are added to this site link.
Understanding Replication Between Sites
http://technet.microsoft.com/en-us/library/cc771251.aspx
Please check the replication issue, and post the result to here.
Regards.
Vivian Wang -
Multiple connection of same database
Hi
In my program I need to have multiple connections of same database and it must execute different procedures parallely . Can any one suggest how to do it.
Thanks in advanceThreads
-
PRO*C에서 MULTIPLE CONNECTION 방법
제품 : PRECOMPILERS
작성날짜 : 1997-02-04
=================================
Pro*C에서 Multiple Connection 방법
=================================
1. Explicit Connection
EXEC SQL DECLARE database_name DATABASE;
EXEC SQL CONNECT :username IDENTIFIED BY :password
AT database_name USING :database_string;
. database_name : Precompiler에서의 identifier
. database_string : remote node에 접속하는 SQL*Net syntax
1) SQL Operation
EXEC SQL AT database_name SELECT ...
EXEC SQL AT database_name INSERT ...
EXEC SQL AT database_name UPDATE ...
EXEC SQL AT database_name COMMIT ...
2) PL/SQL Block
EXEC SQL AT database_name EXECUTE
begin
/* PL/SQL block here */
end;
END-EXEC;
3) Cursor Control
EXEC SQL AT database_name DECLARE cursor_name CURSOR FOR ...
EXEC SQL OPEN cursor_name ...
DECALRE문장에만 AT database_name이 들어가며 OPEN, FETCH,
CLOSE문에서는 AT 문을 사용하지 않는다.
4) Dynamic SQL
Dynamic Method 1에서는 execute시점에 At문을 사용한다.
EXEC SQL AT database_name EXECUTE IMMEDIATE :sql_stmt;
Dynamic Method 2,3,4에서는 DECLARE STATEMENT에서만 AT문을
사용한다.
EXEC SQL AT database_name DECLARE sql_stmt STATEMENT;
EXEC SQL PREPARE sql_stmt FROM :sql_string;
* host variable로 선언하여 사용할 수도 있다.
char username[10] = "scott";
char password[10] = "tiger";
char db_name[10] = "oracle1";
char db_string[20] = "NYNON";
EXEC SQL CONNECT :username IDENTIFIED BY :password
AT :db_name USING :db_string;
EXEC SQL AT :db_name DELETE ...
- DECLARE DATABASE 문이 필요하지 않으나 SQL Operation시에
사용되는 table들에 대해서 DECLARE TABLE 문을 사용해야
precompile시에 warning을 발생시키지 않는다.
2. Implicit Connection
database link를 사용하여 non-default database를 access한다.
EXEC SQL SELECT ENAME,JOB INTO :emp_name, :job_title
FROM emp@db_link
(database link는 미리 create 되어 있어야 한다.
CREATE DATABASE LINK db_link
CONNECT TO scott IDENTIFIED BY tiger
USING 'T:krhost:SID'; )
이것은 v1 방법이고 , v2 에서는 tnsnames.ora file 의 alias 를 ' ' 안에 써준다.Hi @seperiz
Have you tried rebooting your router? try unplugging it for 10 seconds, akkow it 2-3 minutes to start till you able to access the web and then turn the printer off and on again.
May you see any difference then?
If the same persists, how far the printer is located from your router? I suggest ensuring it is not too far, but not too close either... 203 meters away would be an optimal distance.
Hope that may help.
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
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Can we open multiple connections to APNS Feedback Server
Hi,
Is it recommended/allowed to open multiple connections to APNS feedback server to poll the bad tokens?
The idea is to run a timer task (every hour) on a n application server which will poll the apns feedback server to retrieve the bad tokens and then close the connection every one hour from N app srevers.
If it is allowed, can multiple parallel connection get the same bad device tokens connected/read at same time?You are literally correct in that IP addresses can be spoofed.
But the same argument can be made about any single, known, form of security.
If I know it is the fingerprint from your left index finger that is required ... I've no doubt I can break in if I want to badly enough. Sorry about the finger.
Security comes from layering multiple, unknown, security measures.
Mix invited nodes with a known userid
SELECT sys_context('USERENV', 'OS_USER') FROM dual;
and the hacker has to know both a valid IP address and who is supposed to be there.
Now on top of that add the operating system information:
SELECT sys_context('USERENV', 'TERMINAL') FROM dual;
and it becomes a bit more difficult.
Layer on a few more and it becomes exceedingly unlikely anyone will get in that doesn't belong there.
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