How to reset a number of rows based on a column value?

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• [8i] way to add a specific number of rows based on a column value?

  I know that the version of Oracle is old:
  Oracle8i Enterprise Edition Release 8.1.7.2.0 - Production
  PL/SQL Release 8.1.7.2.0 - Production
  CORE 8.1.7.0.0-Production
  AMT for HP - UX: 8.1.7.2.0 - Production Version
  NLSRTL Version 3.4.1.0.0 - Production
  
  I'm trying to get an old database data in a specific format, and this should be run several times during the next year, until we can phase out the old database. Unfortunately, it is not particularly useful for formatting the data after he is questioned, so if a SQL solution can be found, it would probably be best.
  
  Some examples of data:
  

  CREATE TABLE     testabc
  (     item     CHAR(25)
  ,     qty     NUMBER(13,4)
  );
  
  INSERT INTO     testabc
  VALUES ('Item1',1);
  INSERT INTO     testabc
  VALUES ('Item2',3);
  INSERT INTO     testabc
  VALUES ('Item3',1);
  INSERT INTO     testabc
  VALUES ('Item4',2);

  I want to get these results:

  ITEM                                  QTY
  ------------------------- ---------------
  Item1                               1.000
  Item2                               3.000
  --blank row
  --blank row
  Item3                               1.000
  Item4                               2.000
  --blank row
  
  OR
  
  ITEM                                  QTY
  ------------------------- ---------------
  Item1                               1.000
  Item2                               1.000
  Item2                               1.000
  Item2                               1.000
  Item3                               1.000
  Item4                               1.000
  Item4                               1.000

  Either format would be acceptable. The key is to have the same number of rows for an article as its quantity.
  
  Any help on this would be appreciated. I wasn't sure if maybe that this would require a CONNECT BY statement. With my luck, it requires one of the functions which did not become available until 9i...
  
  I tried this:

  SELECT     CASE
            WHEN     LAG(qty)     OVER(PARTITION BY item ORDER BY item, qty DESC)     = 1
            THEN     item
       END                    AS item
  ,     CASE
            WHEN     LAG(qty)     OVER(PARTITION BY item ORDER BY item, qty DESC)     > 1
            THEN     LAG(qty)     OVER(PARTITION BY item ORDER BY item, qty DESC) - 1
       END                    AS qty
  FROM     testabc
  ;

  but he gave me a bunch of empty lines.
  
  Thank you!

  Hello

  Here's a way to do it in Oracle 8.1

  SELECT       CASE  c.n
            WHEN 1  THEN  t.item
         END          AS item_col
  ,       CASE  c.n
             WHEN 1  THEN  t.qty
         END          AS qty
  FROM       testabc  t
  ,       (
            SELECT     ROWNUM     AS n
            FROM     all_objects
            WHERE     ROWNUM     <= 10     -- If you know an upper bound
         )          c
  WHERE       c.n     <= t.qty
  ORDER BY  t.item
  ,            c.n
  ;
  

  This assumes that this quantity is never more than the number of lines in object (usually at least 5000). If you need more lines, you can cross join object to itself, with the result a limit of 25 million lines or more.
  The WHERE clause in the subquery c is not absolutely necessary, but it will make things faster.

  Published by: Frank Kulash, December 19, 2011 15:33

  The solution above is for the first set of results, with blank lines.
  For the results of the second, with lines no NULL duplicate, just lose the CASE expressions in the FROM clause:

  SELECT       t.item
  ,       t.qty
  FROM       testabc  t
  ,       (
            SELECT     ROWNUM     AS n
            FROM     all_objects
            WHERE     ROWNUM     <= 10     -- If you know an upper bound
         )          c
  WHERE       c.n     <= t.qty
  ORDER BY  t.item
  ,            c.n
  ;
  

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  I want to limit the number of rows returned by my request to some 10 lines. How to do this. When I try to make some 6 rows with the rownum < 10 its giving results for a particular Department and that too only... btw I'm bundling my table and includes much a table joins and will order the results of the table by a column... How to do this...

  Run it:

  select * from (your query goes here) where rownum < 10
  

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  Hi all
  
  I use jdeveloper 11.1.1.3.0
  
  in the development of the object view, only until the line number is set to 100, but it has 1000 row in DB.
  
  now page jspx, I need to get the number of rows in db (1000), how can I get it?
  
  If I get iterator or view are of the object status is not true, it returns the value 100.
  
  How can I get 1000?

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• How to determine the number of rows in the database and save the result to a local variable?

  Hello

  I'm a newbie in the use of TestStand, databases and SQL, and now I've met difficulties. I use TestStand 2014 (32 bit).

  I have a need to know the number of rows in a database and save that number in a local variable. I tried to practice using the database of the Types of step provided with TS. I tried to use the following in a SQL statement:

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• How to display the number of lines of time giving the values of the columns?

  Hi all
  
  I want to display the number of rows times the value exists in the column num in the query below
  
  
  

  with t AS
     ( SELECT 'venkatesh' NAME, 'hyd' LOC, 2 NUM FROM DUAL
       UNION ALL
       SELECT 'prasad' NAME, 'hyd' LOC, 3 NUM FROM DUAL
       UNION ALL
       SELECT 'krishna' NAME,     'hyd' LOC, 1 NUM FROM DUAL )
    SELECT T.* FROM T
    CONNECT BY ROWNUM <= NUM
  
  
  Expected output:
  
           venkatesh            hyd      2
           venkatesh            hyd        2
           prasad                 hyd        3
           prasad                   hyd      3
           prasad                   hyd      3
           krishna           hyd       1

  Published by: Nag Aswadhati on November 1, 2012 12:34

  Aswadhati NAG wrote:
  Hi all

  I want to display the number of rows times the value exists in the column num in the query below

  Expected output:
  
  venkatesh            hyd      2
  venkatesh            hyd        2
  prasad                 hyd        3
  prasad                   hyd      3
  prasad                   hyd      3
  krishna           hyd       1
  

  With the help of connection by: -.

  with t AS
     ( SELECT 'venkatesh' NAME, 'hyd' LOC, 2 NUM FROM DUAL
       UNION ALL
       SELECT 'prasad' NAME, 'hyd' LOC, 3 NUM FROM DUAL
       UNION ALL
       select 'krishna' name,     'hyd' loc, 1 num from dual )
    select t.name, t.loc
    from t
    connect by level <= num
           and name = prior name
           and (prior sys_guid() is not null);
  
  NAME      LOC
  --------- ---
  krishna   hyd
  prasad    hyd
  prasad    hyd
  prasad    hyd
  venkatesh hyd
  venkatesh hyd 
  
   6 rows selected
  

• To return a specific number of rows based on the data in a table column

  Hello
  I have a table named orders that has the column orderid and noofbookstoorder in addition to the other columns.
  I want to query the orders table and according to the value of the value of "noofbookstoorder" that return number of lines.
  
  For example
  OrderID noofbookstoorder
  3 s
  2 3
  3 2
  
  When I ask the above data saying
  
  Select * from orders where orderid = 2;
  
  because there noofbookstoorders 3 value the query should return 3 rows and when I query
  
  Select * from orders where orderid = 3;
  
  He must return to 2 rows and
  
  Select * from orders where orderid = 1;
  
  should return 1 row.
  
  Is it possible to do this. If Yes, then how can I write my query.
  
  Thanks in advance.

  with t as (
             select 1 Orderid,1 noofbookstoorder from dual union all
             select 2,3 from dual union all
             select 3,2 from dual
            )
  select  t.*
    from  t,
          table(cast(multiset(select 1 from dual connect by level <= noofbookstoorder) as sys.OdciNumberList))
    where Orderid = 
  /
  

  For example:

  SQL> with t as (
    2             select 1 Orderid,1 noofbookstoorder from dual union all
    3             select 2,3 from dual union all
    4             select 3,2 from dual
    5            )
    6  select  t.*
    7    from  t,
    8          table(cast(multiset(select 1 from dual connect by level <= noofbookstoorder) as sys.OdciNumberList))
    9    where Orderid = 2
   10  /
  
     ORDERID NOOFBOOKSTOORDER
  ---------- ----------------
           2                3
           2                3
           2                3
  
  SQL> with t as (
    2             select 1 Orderid,1 noofbookstoorder from dual union all
    3             select 2,3 from dual union all
    4             select 3,2 from dual
    5            )
    6  select  t.*
    7    from  t,
    8          table(cast(multiset(select 1 from dual connect by level <= noofbookstoorder) as sys.OdciNumberList))
    9    where Orderid = 3
   10  /
  
     ORDERID NOOFBOOKSTOORDER
  ---------- ----------------
           3                2
           3                2
  
  SQL> with t as (
    2             select 1 Orderid,1 noofbookstoorder from dual union all
    3             select 2,3 from dual union all
    4             select 3,2 from dual
    5            )
    6  select  t.*
    7    from  t,
    8          table(cast(multiset(select 1 from dual connect by level <= noofbookstoorder) as sys.Odc
  iNumberList))
    9    where Orderid = 1
   10  /
  
     ORDERID NOOFBOOKSTOORDER
  ---------- ----------------
           1                1
  
  SQL>  -- And if you want to select multiple orders
  SQL> with t as (
    2             select 1 Orderid,1 noofbookstoorder from dual union all
    3             select 2,3 from dual union all
    4             select 3,2 from dual
    5            )
    6  select  t.*
    7    from  t,
    8          table(cast(multiset(select 1 from dual connect by level <= noofbookstoorder) as sys.Odc
  iNumberList))
    9    where Orderid in (2,3)
   10  /
  
     ORDERID NOOFBOOKSTOORDER
  ---------- ----------------
           2                3
           2                3
           2                3
           3                2
           3                2
  
  SQL> 
  

  SY.

  Published by: Solomon Yakobson, October 26, 2009 07:36

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  Hello

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  table

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  Thank you and sorry for my bad English.

  Hello

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