use of the SYS prefix in front of dbms.output)

Hi all

Maybe it's stupid. But I have a question what is the difference between the following two:

DBMS_OUTPUT. PUT_LINE ('TEST');
AND
SYS. DBMS_OUTPUT. PUT_LINE ('TEST');

What is the use of the SYS prefix?

Concerning
Sylvie

788844 wrote:

Maybe it's stupid. But I have a question what is the difference between the following two:

DBMS_OUTPUT. PUT_LINE ('TEST');
AND
SYS. DBMS_OUTPUT. PUT_LINE ('TEST');

Not stupid at all. It is a problem of scope-resolution.

All programming languages have the scope-resolution. You are referring to a call (method, function, procedure, etc.). The system (compiler or at a time of engine performance) needs to understand exactly what you are doing reference, in order to execute this call.

In the case of PL/SQL, PL/SQL engine will use first of all the local scope - in other words, objects (procedures, functions, variables, etc.) defined in the schema, and a unit of current code.

If it fails to resolve the reference to appeal, it seems within the reach of the public.

Dbms_output.put_line () is a call reference package. So the 1st check would be local control. This package exists in the current schema? Is there a local synonym that can be used?

In case of failure, scope becomes public. Is there a public reference (synonymous in this case) that solves that?

The answer for DBMS_OUTPUT is Yes - and this public synonym refers to the package belonged to the SYS schema.

If you had a local package with the same name, or a local synonym, then that would have been used.

When you encode now SYS. Dbms_output.put_line () instead, you explicitly specify the scope to the PL/SQL engine. You say that you're referring to the DBMS_OUTPUT object belonged to the SYS schema.

Both methods have some advantages and disadvantages.

Simplistically, the implicit scope (where leave you the engine to search for the object you are referencing) offers more flexibility. Let's say you need to change the behavior of the DBMS_OUTPUT - do it for example also write output to a log file. You can create your own package DBMS_OUTPUT with the exact same interface as the SYS. DBMS_OUTPUT package. Inside of your custom package, you can write the output to a log file and then call the SYS. DBMS_OUTPUT package to do its part.

The original source code using DBMS_OUTPUT.put_line () works unchanged. Is what you have now introduced a local reference meets the criteria of the scope - and your local DBMS_OUTPUT package is now used instead.

Scope explicit can claim to be safer. That no person shall "divert" calling your code by manipulating scope of the resolution - and do the above and create a custom of DBMS_OUTPUT package. But it also makes the code much more rigid.

In general in PL/SQL - extended implicit is desirable because it provides the flexibility that is often necessary. When writing "of trust' global code that does cool stuff user and must be trusted to always do the right thing, then brought explicit should consider instead.

Tags: Database

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Let's see if we can help here:

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I hope this helps.

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Prefix
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* Story *.
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* Postfix *.
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I think it's a problem with your CDATA section. Remove this small and test again to prove that he is the cause.

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I deployed a private teredo server, I'm not using the public prefix 2001: 0 / 32, instead, I use the prefix 2001:2222 / 32

Original title: windows 7 Teredo: how to configure the teredo prefix

Hello

I deployed a private teredo server, I'm not using the public prefix 2001: 0 / 32, instead, I use the prefix 2001:2222 / 32

But I got win7 can't connect to my server if I use the prefix 2001:2222 / 32.

A test, I put the prefix 2001: 0 / 32, win7 it can connect.

How can I do so that win7 customer teredo can connect to my private server that use the prefix 2001:2222 / 32?

Hi,

The question you posted would be better suited in the TechNet Forums.

I would recommend posting your query in the link below.

Windows Server forums:

http://social.technet.Microsoft.com/forums/en-us/category/WindowsServer

I hope that the information above helps you.

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Dear all,
My database is Oracle 10 g on Windows platform.
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Therefore,.

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c. ask the DBA using the DBA role (or a custom, more restrictive role)

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can you please let me know

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Hello

This can be happen due to upper and lower case system registry settings.

http://support.Microsoft.com/kb/894730

http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-hardware/my-computer-cannot-detect-my-DVD-drive-in-Windows/3e232ab4-1a4c-425d-96DC-4f4dac074c60

http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-windows_install/a-required-CDDVD-drive-device-driver-is-missing/51ecd2ed-b678-E011-9b4b-68b599b31bf5

http://support.Microsoft.com/kb/314060

Try to remove prefixes of front Pages of outgoing Fax dialing rules.

I use Windows Fax and Scan program included in Windows 7 Professional 64 bit. I used to use the fax software that was included in Windows 2000 Pro and have not experienced this problem.

The problem I have is this: when you send a fax to a business contact, if I use a dialing rule, prefixes used in the dialing rule appear on my cover Page in the fax number of the recipient field. (This is moved when you use the same cover on the oldest of Windows Fax software page.)

For example, when you select the dialing rule to disable call waiting, fax number of the recipient on the cover then reads, "* 70, 555-555-5555" (the numeral 5 is used for the protection of personal information).

Any help, suggestions or direction is appreciated.

Thank you.

Fax and scanning has never been designed to be an enterprise application. None of the Windows Fax programs were never and all the features varied considerably over the years. Once upon a time, fully integrated Fax (sort of) faxes Outlook so received in your Inbox. This changed when XP replaced 98. Once upon a time, you could have your fax modem use distinctive ring. another loss. Then Fax was fired from Vista Basic and Home SKU and available only in Pro and Ultimate, ignorant the fact that most users scan and fax are special and that most business users have a business fax solution and do not use it. I hope they fix this problem, but I surely do not stand on one foot and hold my breath waiting for what he... Mind you, I added this to my list of things that they should fix and it will bring up the next conference call we have.

HAL

--

HAL Hostetler, TCE

Engineer senior/UPDATED--MS MVP-Print/Imaging - WA7BGX

www.kvoa.com - KVOA television, Tucson, AZ.

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Cannot connect the sys user remotely

Hello
Oracle Version: 11.2.0.4
OS: Win Server 2008 R2
Despite the creation of password for the file and modify the init.ora for exclusive use.
Remote_login_passwordfile string EXCLUSIVE
I am still unable to connect the user sys.

869855 wrote:

Sincere apologies, I forgot to share the error

SQL > conn nwbackup@ucmdb as sysdba

Enter the password:

ERROR:

ORA-01017: name of user and password invalid. connection refused

P.S: Connectivity works very well with other users.

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Aman...

Grep for websites without the www prefix

I found a clever grep code for Web sites on this forum: ------< (https | http | ftp | www) [-~! #-; =? - Z_a - z] {4} (? <! ~ j)

However, our style requires no prefixes on websites, so I, not knowing much about grep, rearranged the code a little to this:------< [-~! #-; =? - Z_a - z] {4} (? <! ~ j)(com|org|gov|net)
That works great except for the occasional glitch, as I joined him. I guess that the '4' in the code has something to do with the fact that if the word has 4 characters before the 'com', it will change the grep style (note the result of words and overcome.) Any suggestions to improve this code?
Thank you for your time.

I use in the searchfield:

(?! ([[: punct:] $]) [\S] {2,}\. [\S] {2} (?
I use it in the searchfield is because she's still a few false positives and I want to see what it's finding before I have apply different character style. I look for at least two characters, not three, because there are some URLS out there with only two characters as .uk. suffix

It is not perfect, but it's the best I could figure it out for now.

I hope this helps, and I'm completely open to suggestions on how to improve the script.

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-When you look in the Task Manager, I see the physical memory to 88% and the bar bed to 7.10 GB.
-Adding all process memory usage, it is only about 2 GB.
-In another thread, that I read that it was because he had a deadline, and hot air balloon began.
-J' I monitor the server via SNMP and have alerted all the time that this server joined more than 90% ram usage.
-The Guest server is correct use of the physical memory Task Manager?
-If it is not, and is caused by the ESX host, how can I fix it to properly monitor the comment server.

The question here is how windows works,

You reserve memory and don't have no limits, so there is no balloon showing VMs to appear that they have high memory use when they are not actually in some cases.

Processes that Task Manager displays is not all that is running or being eaten, I know when working with SQL, you have FEAR that can use a ton on memory, but there is no process to show.

Best thing to do is to run RAMMAP a sys internals tool that will show you exactly what is using the memory in windows.

4EA2 'RUN' is grayed out in the contextual menu for the SYS package

I am running in a database of Oracle 11 g Enterprise Edition Release 11.2.0.3.0 - Production of 64-bit environment.
I use the version of SQL Developer release Early Adopter 2 4.
SQL Developer 3.2, while it is connected to a specfic scheme, it was possible in the Connections window, expand the menu item from other users, so the SYS menu item, then the PACKAGES menu item and select a package, and using the context menu 'run '. ' Run PL/SQL ' window would appear, and I could enter the appropriate settings and run a procedure in this package. I think in particular of the DBMS_ERRLOG package.
In 4EA2, following the same path, the command "Run", well visible, is grayed out. The combination of keys "Ctrl + F10" alternative works. Please restore the "Run" command in the active state (not greyed out) in the context menu.

Hi wine,

Perhaps the scenario you describe is the same as a bug fixed for EA3:

Bug 17601294 - LOW PRIV USER CANNOT RUN the PACKAGE IN the SCHEMA STRANGER WITH EXECUTE PRIV

A small detail of the test case it (nothing mentioned about Ctrl-F10, however):

1. create user ONLY CONNECT, RESOURCES, SELECT_CATALOG_ROLE. 2 Grant EXECUTE on a package in another schema. 3. navigate to the package in the tree view. 4 run/run button is disabled.

5. but this scenario works as expected in v3.2

This close is enough?

Kind regards

Gary

SQL development team

A question about the procedure of bind_array in the sys.dbms_sql package

Hi all

I have a problem with the procedure of bind_array of the sys.dbms_sql package and I would be grateful if you could kindly show where I've made mistakes in my code.

Parameter	Value of the parameter
Oracle version	Enterprise Edition Release 11.2.0.1.0 - 64 bit
OPERATING SYSTEM	Linux Fedora Core 17 (X86_64)

Test case:

For the purpose of this exercise (if you want that data at your disposal), I use the employees of the HR schema example table.

Problem:

Consider the following SQL query:

SELECT    t1.first_name fname
FROM        hr.employees t1
WHERE     t1.employee_id IN (197, 179, 130, 116);

This gives the following result

FNAME

--------------------

Mozhe

Shelli

Kevin

Charles

SQL >

Just an exercise I want to use the dbms_sql package to do the same thing (there is absolutely no need to do it, because nothing is dynamic here, but as I said, the goal was to do some exercises with sys.dbms_sql package in order to better understand how to work these procedure/functions)

Here's what I wrote (the following was performed directly in SQL * more):

SET SQLBLANKLINES ON;
ALTER SESSION SET PLSQL_WARNINGS='ENABLE:ALL';
SET SERVEROUTPUT ON;


CREATE OR REPLACE PROCEDURE mytestProc
AUTHID DEFINER
IS   
BEGIN
    <<bk>>
    DECLARE
        curId       PLS_INTEGER;  -- The cursor ID

        rowCnt      PLS_INTEGER;  

       
        fname       hr.employees.first_name%TYPE;
        FNAME_LNG   CONSTANT PLS_INTEGER := 20;
       
        empIds      sys.dbms_sql.NUMBER_TABLE;
       
        SQLSTMT     CONSTANT VARCHAR2(100) :=
            'SELECT t1.first_name '                 ||
            'FROM   hr.employees t1 '               ||
            'WHERE  t1.employee_id IN :b_empIdTab';
    BEGIN
        -- We chose 4 arbitrary employee_id for
        -- the purpose of this exercise from
        -- the employee table of oracle sample
        -- 'hr' schema
        empIds(1) := 197;
        empIds(2) := 179;
        empIds(3) := 130;
        empIds(4) := 116;
       
        bk.curId := sys.dbms_sql.open_cursor(security_level=>2);
       
        sys.dbms_sql.parse(bk.curId, 
                            bk.SQLSTMT, 
                           sys.dbms_sql.NATIVE
                          );
                          
        sys.dbms_sql.define_column(bk.curId, 
                                   1, 
                                   bk.fname,
 bk.FNAME_LNG
                                  );
       
        -- So normally here the 4 employees id are provided
        -- to the SQL statement
        sys.dbms_sql.bind_array(bk.curId, ':b_empIdTab', bk.empIds);
       
        rowCnt := sys.dbms_sql.execute(bk.curId);
       
        WHILE (sys.dbms_sql.fetch_rows(bk.curId) > 0) LOOP
            sys.dbms_sql.column_value(bk.curId, 1, bk.fname);
            sys.dbms_output.put_line('fname = ' || bk.fname);
        END LOOP;
       
        sys.dbms_sql.close_cursor(bk.curId);
    END;
END mytestProc;
/
SHOW ERRORS;


BEGIN
    mytestProc();
END;
/


DROP PROCEDURE mytestProc;
SET SERVEROUTPUT OFF;

And here is the result of the code above:

fname = Shelli

PL/SQL procedure successfully completed.

SQL >

What don't get me, is why instead of four names (fname), I get one?

Thanks in advance,

Kind regards

Dariyoosh

To be honest, the evolution of the DBMS_SQL is somewhat confusing, but suffice it to say the DBMS_SQL. Procedure BIND_ARRAY is not what you are looking for.

The DBMS_SQL. Procedure BIND_ARRAY binds each value in the array to turn to * separated * execution of the SQL statement, which is similar to the FORALL in native dynamic SQL statement. While this works well for INSERT/UPDATE/DELETE and works in principle with SELECT statements, which, according to me, you actually get is the result of one of these performances that is clearly not what you want.

Instead what you are looking for is one of the overloads of the DBMS_SQL. Procedure bind_variable that supports the binding types of collections, but will not work with SQL, you have now the paragraph uses a literal in, you use is a MEMBER OF (which is AFAIK not call to the index) or treat the collection in a table via the syntax of function () TABLE and each join or use it as an IN subquery.

use of the SYS prefix in front of dbms.output)

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