Why we use the cursor

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• why I use the new cc photoshop cannot open, have and pdf

  why I use the new cc photoshop cannot open have and pdf.

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• When to use the cursor for loop and the cursor (open, fetch, close)

  Hello world
  I have a small doubt about when to use the cursor for loop and when to use the cursor for loop and the cursor (open, fetch, close).
  Well, I'm not the difference between implicit and explicit cursor. So please tell me how I got to know, what to use and when?
  
  
  
  
  Kind regards
  BS2012
  
  Published by: BS2012 on January 29, 2013 12:15

  All SQLs are analyzed, stored and executed as cursors. Thus, you will always use a cursor.

  The problem is that languages, such as PL/SQL, provide different interfaces to interact with the SQL cursor. As the ref, the slider interface, the interface DBMS_SQL slider interface and so on.

  Each of these interfaces offers different features. For example, using the interface DBMS_SQL allows binding dynamics and dynamic recovery. The Ref Cursor interface allows your code PL/SQL pass a handle to a reference pointing to the SQL cursor, to an external client. Etc.

  The fundamental reason for the use of an explicit cursor interface is mainly that you own and manage bulk made extraction output provided by PL/SQL cursor.

  With a cursor FOR , the motor loop of PL/SQL optimize the loop by extracting block a 100 lines both. However, you cannot access this collection in bulk directly inside the loop.

  With an explicit cursor interface, you specify the size of the extraction in bulk via the clause LIMIT , and you set the variable of collection to use. This allows you to use the collection directly variable inside the loop.

  However, the need to do - code manually in bulk collection - rarely occur in the daily programs in PL/SQL. A line of treatment is both slow and not well fits. And even if your bulk code collects lines, these lines must still be processed one at a time in your code. It is much more efficient and scalable rather write SQL code, and make the engine SQL the line of treatment for you.

• why we use the symbol $ java variable?

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• Why not use the static methods - example

  Hello world
  
  I would like to continue the below thread about "why not use static methods.
  Why not use the static methods
  with the concrete example.
  
  In my small application, I need to be able to send keystrokes. (java.awt.Robot class is used for this)
  I created the following class for these "operations" with static methods:
  

  public class KeyboardInput {
  
       private static Robot r;
       static {
            try {
                 r = new Robot();
            } catch (AWTException e) {
                 throw new RuntimeException(e + "Robot couldn't be initialized.");
            }
       }
       
       public static void wait(int millis){
            r.delay(millis);
       }
       
       public static void copy() {
            r.keyPress(KeyEvent.VK_CONTROL);
            r.keyPress(KeyEvent.VK_C);
            r.keyRelease(KeyEvent.VK_C);
            r.keyRelease(KeyEvent.VK_CONTROL);
       }
  
       public static void altTab() {
            r.keyPress(KeyEvent.VK_ALT);
            r.keyPress(KeyEvent.VK_TAB);
            r.keyRelease(KeyEvent.VK_TAB);
            r.keyRelease(KeyEvent.VK_ALT);
       }
  
                 // more methods like  paste(), tab(), shiftTab(), rightArrow()
  }

  You think it's a good solution? How could it be improved? I saw something Singleton vs somewhere of static methods. Wouldn't be better to use Singleton?
  
  Thanks for your comments in advance.
  lemonboston

  maheshguruswamy wrote:

  lemonboston wrote:

  maheshguruswamy wrote:
  I think a singleton might be a better approach for you. Just kill the public constructor, and provide a getInstance method to provide late initialization.

  Maheshguruswamy thanks for the tips on the steps create a singleton of this class.
  Perhaps you could say also why do you say that it would be preferable to use singleton? What is behind it? Thank you!

  In short, it seems to me that a single instance of your class will be able to coordinate actions across your entire application. If a singleton should be sufficient.

  But who doesn't answer why he expected prefer a singleton instead of a bunch of static methods. Functionally, the two are almost identical. In both cases, there is that a single 'thing' to call methods - either a single instance of the class or the class itself.

  To answer the question, the main reason to use a Singleton on a class of static methods is the same reason readers much of not static vs static decisions: polymorphism.

  If you use a Singleton (and and interface), you can do something like this:

  KeyboardInput kbi = get_some_instance_of_some_class_that_implements_KeyboardInput_somehow_maybe_from_a_factory();
  

  And then everything calling public methods of KBI has to know that there an implementor of this interface, without worrying about what concrete class is, and you can replace some implementation is appropriate in a given context. If you do not need to do, then the approach of the static method is probably enough.

  There are other reasons that may suggest a Singleton - serialization, persistence, use as a JavaBean pop to mind - but they are less frequent and less convincing in my experience.

  And finally, if this thing keeps updated a State between method calls, even if you can manage it with static member variables, it is more in line with the OO paradigm to make them non-static fields of an instance of this class.

• Update of a column by using the cursor

  Hello world
  always play with the stuff of newbie here. Is it possible to update a column or row with a slider? I understand how to extract data using a slider, but don't know if it helps to update the data.
  
  If it is possible, what is the syntax?
  
  Kind regards
  Valerie

  Valerie Debonair wrote:
  Hello world
  always play with the stuff of newbie here. Is it possible to update a column or row with a slider? I understand how to extract data using a slider, but don't know if it helps to update the data.

  Why not read the fine manual? [Oracle® PL/SQL Database User Guide and reference | http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/sqloperations.htm#i40107] describes all the constructions of cursor.

  If it is possible, what is the syntax?

  The best way is to use a PL/SQL implicit cursor, as follows:

  declare
    empID number;
  begin
    empID := 1234;
  
    update emp
      set salary = salary +100
    where empno = empID;
  
    commit;
  end;
  

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• HP laptop, 2000 - 2a20CA: Page of the screen shrinks by using the cursor key

  Laptop HP 2000-2a20CA

  No. B5R61UA

  It seems the upgrade from Win 7 to win 10 Home edition, in navigation or by using a Microsoft Office program, the windows Explorer.

  When you move the cursor with the touchpad and then listen to select a link, function etc. anywhere on the screen/page.

  The screen will decrease in size to the left or right of the screen or reduce to the taskbar.

  Clues, there is problem Win 10 or touchpad.

  HP 2000-2a20CA, running Windows 10 laptop

  Thank you

  I think I solved the problem because now I think.

  To check the HP site looking for updates to Win 10 and none were found.

  But then I changed my version of Windows to win 8 then rechecked updates and there is an update for the touchpad dated March 2016.

  Downloaded and installed, and everything seems OK so far.

  Thanks again.

• Point display XY graph using the cursor data

  Hello all, I use XY graph to display amplitude v/s time. During the vi execution, data are continuously plooted on chart until the user stops the vi. I want to add a feature, such that, during the execution of the vi, when the user clicks on the chart to the situation with the cursor, it should show corresponding value of time and amplitude of this point. I mean the value of the axis corresponding to the category axis not the cursor position. When you use the position of the cursor, it is ok with the x axis, but it shows the cursor position for y axis (as property said), and I want datavalue said not not the position y axis.

  I hope it's clear with the question. I would like to have a few examples... for y = x graphic below, you can see cursor x = 4.4 and y = 6.8, how to view corresponding datapoint which must be y = 4.4

  When creating (or even after you've created), choose "align on the" plot 0.

  Do not let it be 'slide free.

  

  Attached example.

• why we use the network module

  Why use the network module? What is the purpose of it

  Hello

  When you buy a switch or router, it comes with some default interfaces and some empty slots.

  The default interfaces are usually ethernet interfaces; However, router or switch supports more types of interfaces. You can order and buy these interfaces according to your needs. New interfaces in the form of modules can be put inside these empty slots. Suppose you need a WAN connection between two places. If you buy a module WAN. It's like buying a card your computer's ethernet. Or you need to connect fiber optic cables to your router, you will need to purchase a module with a fiber interface.

  There are two types of module and also two different locations on the routers. Small slits are WIC and bigger for NM (network module)

  Module 1-network (your question).

  This is a great module which can contain a variaty of ports and also some NM modules and some WICs. These modules can usually be inserted into larger routers.

  2-

  WIC is smallest card that can be inserted into a router dirrectly or some cards NM.

  WIC and NM are a little old and today HWIC and NME are mainly used.

  Please click the link below to check the different types of module for router 2800. Take a look at modules with the prefix of NM, NME, WIC HWIC.

  http://www.Cisco.com/c/en/us/products/routers/2800-Series-integrated-SER...

  It will be useful,

  Masoud

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  Hi all

  Hope you all are doing well.

  (1) can someone describer that's why we use CUBE in Cisco voice environment and this is the main purpose? Configure the steps?

  (2) what is allowed and what type of license that we use in the world of VOICE?

  (3) features and integration between the CUCM CUPS CUPS?

  Thank you

  Arjun keita

  This very open Q

  To read a bit of paper on the product

  http://www.Cisco.com/c/en/us/products/unified-communications/unified-BOR...

  and no further questions, see the Q & A

  https://supportforums.Cisco.com/document/69976/frequently-asked-question...

  BR
  Mamdouh

• Using the cursor to insert a value

  Hello
  I created a procedure mentioned below, using the slider that I want to insert a value in the table its not to insert any value. You can one to find the solution. I have compiled the procedure there is no errors...
  
  I have a lot of value in the employee... then after table do not perform the procedures no value in employee_lkp
  
  
  My structure from the Employee table is
  
  CREATE TABLE 'VIDHYA '. "' EMPLOYEE '.
  (
  VARCHAR2 (15 BYTE) "PNOM."
  'MINIT' VARCHAR2 (2 BYTE),
  VARCHAR2 (15 BYTE) "LNAME",.
  ACTIVATE THE "SSN" NUMBER (12.0) NOT NULL,
  "BDATE" DATE,
  'ADDRESS' VARCHAR2 (35 BYTE),
  'SEX' VARCHAR2 (1 BYTE),
  ACTIVATE THE "WAGES" NUMBER (7,0) NOT NULL,
  NUMBER (12.0) "SUPERSSN."
  ACTIVATE THE 'DNO' NUMBER (2.0) NOT NULL,
  ACTIVATE THE STATISTICS STORAGE CALCULATION (INITIAL 65536 THEN 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 USER_TABLES DEFAULT TABLESPACE) 'USERS' CONSTRAINT 'PK_EMPLOYEE' KEY PRIMARY ("SSN") WITH THE HELP OF INDEX PCTFREE 10 INITRANS MAXTRANS 255 2.
  CONSTRAINT 'FK_DEPARTMENT' FOREIGN KEY ('DNO') REFERENCES 'VIDHYA '. "" DEPARTMENT "("DNUMBER") ALLOW
  )
  
  
  employee_lkp structure is
  
  CREATE TABLE 'VIDHYA '. "" EMPLOYEE_LKP ".
  (
  VARCHAR2 (250 BYTE) "PNOM."
  VARCHAR2 (250 BYTE) "LNAME",.
  'ID '.
  )
  
  
  create or replace
  procedure employeelkp is
  number of add_val;
  i the number;
  number num.
  add_name cursor is select * from employee;
  name_cur add_name % rowtype;
  Start
  Open add_name;
  Select count (*) in the number of the employee;
  because me in 1.num
  loop
  extract the add_name in name_cur;
  insert into employee_lkp (id, fname, lname)
  values (i,
  name_cur. Lname,
  name_cur.fname);
  When the output add_name % notfound;
  end loop;
  close add_name;
  end employeelkp;

  Try this...
  Add

  commit;
  

  After

  close add_name;

  at the bottom.

  I hope this helps...

  Hamid

• need to use the cursor for the query

  Hi all
  can someone tell me how to get the result of the following query using the slider?
  
  

  SELECT (SUBSTR('        ', 1,LEVEL*2)
    || t1.label) AS t1_label,
    amount
  FROM
    (SELECT t1.label,
      t1.ID,
      t1.parent_id,
      SUM(t2.turnover) AS amount
    FROM t1,
      t2
    WHERE t2.t1_id = t1.id
    AND t2.t1_id  IN
      (SELECT id
      FROM t1
        START WITH t1.ID       = 2
        CONNECT BY PRIOR t1.ID = t1.parent_id
      )
    GROUP BY t1.label, t1.ID, t1.parent_id
    ) t1
    START WITH t1.ID       = 2
    CONNECT BY PRIOR t1.ID = t1.parent_id;

  .. .and the result:
  

  t1_label             amount
  ---------------------------------------------------------
       B11     11778.54
        B121     19980.28
          B1211     18842.77
          B1212     25480.56
        B122     18339.07
      B12            23455.9
      B13            20876.52

  Thank you
  Alex
  
  Published by: 860003 on June 9, 2011 01:30
  
  Published by: 860003 on June 9, 2011 01:31
  
  Published by: 860003 on June 9, 2011 01:31

  decalare
  V_T1_lable varachar2 (250);
  Number V_AMT;
  cursor c1 is SELECT (SUBSTR (' ', 1, LEVEL * 2))
  || T1. Label) AS t1_label,
  amount
  Of
  (SELECT t1.label,
  T1.ID,
  T1.parent_id,
  Amount of Sum (T2.turnover) AS
  FROM t1
  T2
  WHERE t2.t1_id = t1.id
  AND IN t2.t1_id
  (SELECT id
  FROM t1
  START WITH t1.ID = 2
  CONNECT BY PRIOR t1.ID = t1.parent_id
  )
  GROUP BY t1.label, t1.ID, t1.parent_id
  ) t1
  START WITH t1.ID = 2
  CONNECT BY PRIOR t1.ID = t1.parent_id;

  Start
  Open c1;
  loop
  Fetch c1 into V_T1_lable, V_AMT;
  dbms_output.put_line(V_T1_lable||) e ---'|| V_AMT);
  When Exit C1% notfound

  end loop;
  exception
  When people then
  dbms_output.put_line(SQLCODE||) e --'|| SQLERRM);
  end;

• How to choose the maximum value in a column of a table by using the cursor and iteration

  Hello everyone
  I have a table loan_detail
  and a column inside loan_amount
  now I want to take the values in this table with the cursor, then using iteration that I want to take a max value of him using this slider
  Here is my table

  LOAN_AMOUNT
  
  100
  200
  300
  400
  500
  5600
  700

  I could make using the concepts of single loop, but when I tried to do by using the slider I wasn't able to do.
  Concerning
  Prost

  You can get the maximum value for a particular column in SQL, PLSQL needn't; Always avoid PLSQL so you can do it in SQL. But always as an example:

  declare
  number of Temp: = 0;
  Start
  for news in some loan_amt of loan_detail
  loop
  If (temp
  end if;
  end loop;
  dbms_output.put_line (temp);
  end;

  Edited by: Mahanam January 5, 2011 03:11