Parent - child Tables (query to sum up)

Similar Questions

• ADF Parent-child tables of rules

  Hello

  I use JDeveloper and ADF 12.1.3. Now, I have a set of related tables, and each of them have only a child table.

  I have a jsf page master / detail for each child table. Inside it, I can insert a row in the parent table and several rows in the child table. Commit the button is clicked validate monkey for the booth tables. Link between the master (parent table) and retail (child table) is done via the partnership link and view for the user interface.

  Now, here's the rule I would apply: I can't commit newly created at the table parent without at least a new inserted row in child table.

  Because I have several parent-child tables in this case of use, I wanted to replace the EntityImpl class and add newly created to each parent table class, so I bussines logic in one place for this tables.

  We will look and taste to the table of one of the parents (not overloaded class EntityImpl):

  The Interior has generated parent EO class

  @Override

  {} public void beforeCommit (TransactionEvent transactionEvent)

  TODO implement this method

  If (! validateParentChildNumber()) {}

  throw new local ("not allowed.");

  }

  super.beforeCommit (transactionEvent);

  }

  public boolean validateParentChildNumber() {}

  If (getParentChild (). GetRowCount() > 0)

  Returns true;

  on the other

  Returns false;

  }

  This works well. If I inserts a row in the parent table and one or more rows in the child table passes validation. But if I get a line inside the parent table and no line of children tables I'm not allowed message in my browser.

  So here's where problem read. Once I'm getting now authorized message, no matter if I insert the new line of Herald, I cannot commit until what I restar my app. Why? Because now, I constantly have this message:

  ORA-02291: integrity constraint (RE. FK_PAR_PAR_ID) violated - key parent not found

  It's like I can't hire the existing parent row I inserted before the child missing line. Why is this happening? I should replace postChanges method and what to put in it?

  Thx a lot

  Yes, you should do it in all cases, but point of my post is - put this code in the method of beforeCommit() of the primary entity. Only you need to do in beforeCommit(), is to count the child related entities.

  In your java master entity impl class, you will have the method which returns a RowIterator with associated children, entities, something like that

  public getChildsEO() {} RowIterator

  return (RowIterator)...;

  }

  then, just call this method in beforeCommit() and see if there is at least a child entity...

  You have a point?

• Sum of a stand-alone parent-child table

  I have two tables - a 'key' table containing a parent-child relationship of multi-layer and a table 'amount' that contains the keys for the nodes in the key as well as table of numeric values (for example the amounts).
  I want a query that returns each line in the table of key as well as the sum of the amount amounts of the table for the set of nodes of this key (so the root node would be the sum of all values of quantity).
  
  Here's what I mean: I have two tables, the KEY and the AMOUNT
  
  KEY has two columns, keys, and parent_key; key and parent_key have a relationship CONNECT BY parent_key = prior key (with null for the root parent_key):

  KEY     PARENT_KEY
  0       null
  1       0
  2       0
  3       0
  1A      1
  2A      2
  2B      2
  3A      3
  3B      3
  3C      3
  1A1     1A
  1A2     1A
  2A1     2A
  2A2     2A
  2B1     2B
  3A1     3A
  3A2     3A
  3C1     3C
  3C2     3C

  AMOUNT a two columns, keys, and amount; key points to KEY.key and amount is a value for that particular key
  (Note that all key values are leaf nodes in the KEY table)

  KEY     AMOUNT
  1A1     1 
  1A2     2 
  2A1     3 
  2A2     4 
  2B1     5 
  3A1     6 
  3A2     7 
  3C1     8 
  3C2     9 

  What I want is a result that looks like this, where the amount of each key is the sum of the amounts of its possible keys sheet

  KEY     AMOUNT
  0       45
  1        3
  2       12
  3       30
  1A       3
  2A       7
  2B       5
  3A      13
  3B       0
  3C      17
  1A1      1
  1A2      2
  2A1      3
  2A2      4
  2B1      5
  3A1      6
  3A2      7
  3C1      8
  3C2      9

  For example, the value of the key 2 a, 7, is the sum of the values of 2 a 1 and a 2, 2; key value of 3 is the sum of 3 a 1, a 3, 2, 3, C 1 and 2 of 3.
  
  Is it possible to do this with a single query?
  The idea I came with is, do a select on the KEY with a "Key CONNECT_BY_PATH" column so that each line contains a string that contains the keys of all his ancestors and then do a join on AMOUNT with IN the CONNECT_BY_PATH amount.key column; However, with a large amount of data, it takes a little time. Is there a way faster / more obvious to achieve?

  OK you have almost everything you need. Outer join just your two tables, and then perform a hierarchical query, noting the key root of each tree. Then group the data set resulting:

  with t1 as (select '0' "KEY", '' parent_key from dual
    union all select '1', '0' from dual
    union all select '2', '0' from dual
    union all select '3', '0' from dual
    union all select '1A', '1' from dual
    union all select '2A', '2' from dual
    union all select '2B', '2' from dual
    union all select '3A', '3' from dual
    union all select '3B', '3' from dual
    union all select '3C', '3' from dual
    union all select '1A1', '1A' from dual
    union all select '1A2', '1A' from dual
    union all select '2A1', '2A' from dual
    union all select '2A2', '2A' from dual
    union all select '2B1', '2B' from dual
    union all select '3A1', '3A' from dual
    union all select '3A2', '3A' from dual
    union all select '3C1', '3C' from dual
    union all select '3C2', '3C' from dual
  ), t2 as (select '1A1' "KEY", 1 amount from dual
    union all select '1A2', 2 from dual
    union all select '2A1', 3 from dual
    union all select '2A2', 4 from dual
    union all select '2B1', 5 from dual
    union all select '3A1', 6 from dual
    union all select '3A2', 7 from dual
    union all select '3C1', 8 from dual
    union all select '3C2', 9 from dual
  ), t3 as (
    select t1.key, parent_key, amount
      from t1 left join t2 on t1.key = t2.key
  ), t4 as (
    select CONNECT_BY_ROOT key root_key
         , level lv
         , t3.*
      from t3
      connect by prior t3.key = parent_key
  )
  select root_key "KEY", sum(amount) amount
    from t4
   group by root_key
   order by length(root_key), root_key;
  

• Blockages with parent/child tables

  Guys,

  We have a parent-child of tables in our database with the DDL below:

  CREATE TABLE 'ACCOUNT '.

  (SELECT 'ACCOUNT_ID' VARCHAR2 (32 BYTE) NOT NULL,)

  X, Y, Z,...),

  'XPK_ACCOUNT' CONSTRAINT PRIMARY KEY ('ACCOUNT_ID');

  CREATE TABLE ACCOUNT_PARTITION ".

  (SELECT 'ACCOUNT_ID' VARCHAR2 (32 BYTE) ENABLE NOT NULL, "BALANCE" NUMBER (5.0) NOT NULL,)

  X, Y, Z,...),

  'XPK_ACCOUNT_PARTITION' CONSTRAINT PRIMARY KEY ('ID_COMPTE', 'BALANCE')

  KEY FOREIGN CONSTRAINT 'ACCOUNT_PARTITION_FK1' ('ACCOUNT_ID')

  SELECT THE 'ACCOUNT' ('ACCOUNT_ID') REFERENCES);

  "Lately, we cross " ""ORA-00060: Deadlock detected while you wait for resources ' errors while DELETING in the tables above. Please note that the tables of the child is not any clue except KP index.

  
  

  Could someone please suggest resolution for us to minimize the error of blocking?

  
  

  Respect,

  Bugs

  Imagine you remove account, Oracle must verify there is no record of the child in ACCOUNT_PARTITION, this is because as your FK is restrict the deletions (do not allow the removal if there are child records).  As ACCOUNT_PARTITION. Account_id is indexed so it will be an exclusive table lock to find this, locks the table.

  Another way of thinking is, imagine that you have performed the following query without and ACCOUNT_ID index:

  Select *.

  of ACCOUNT_PARTITION

  where ACCOUNT_ID =

  He SHOULD do a full table scan right?  Well well, even on a deletion of the parent. It attempts to identify lines for the purpose of blocking,

  As a general rule, it is always a good idea to index FKs.

• Update the data to uppercase in the parent/child tables

  Hi gurus!
  
  In production, we have a table product and that is in reference by many tables making parent child relationship. By mistake, we realized last month some products have been added to lowercase and now we have a request to update all these product codes uppercase so that existing code that use these tables have no impact. Appreciate if you can give an idea about how can I update the existing data in the table parent uppercase as well as child records?
  
  Concerning
  Sri

  Are the product code that you need to update what is stored in the tables of children? If Yes, then you must do it in several steps, something like:

  Identify the child tables

  SELECT table_name, constraint_name
  FROM user_constraints
  WHERE r_constraint_name = (SELECT constraint_name
                             FROM user_constraints
                             WHERE table_name = 'PRODUCT_TABLE' and
                                   constraint_type = 'P');
  

  Create new product of upper-case code in the product table:

  INSERT INTO product_table
  SELECT UPPER(product_code), other_columns
  FROM product_table
  WHERE product_code <> UPPER(product_code);
  

  Update the children tables for caps product codes

  UPDATE child1
  SET product_code = UPPER(product_code)
  WHERE product_code <> UPPER(product_code);
  

  Finally, remove the tiny product_table product codes

  DELETE FROM product_table
  WHERE product_code <> UPPER(product_code);
  

  John

• Parent - child Table Insert Trigger

  Hello
  I need assistance with an Insert trigger. I want to insert field data 'Table A' "Table B" based on a PK and FK. Someone at - it examples of code?
  < code >
  Table A
  SEQ_NO - PK
  TO FIELD
  FIELD B
  C FIELD
  
  Table B
  FK_SEQ_NO
  FIELD B
  C FIELD
  < code >
  
  When the data is stored in the 'table A' I need fill out the 'FK_SEQ_NO', based on the saved value 'Table A' "SEQ_NO" as well as the values of FIELD B and C FIELD recorded in Table B.
  Any help is really appreciated, thank you.

  Hi Charles,

  It depends exactly how you created your trigger.

  In my trigger I fill WORK_PACKAGE_ID (PK) in the parent table using rmdb_work_packages_seq. NEXTVAL. The insert statement then uses: NEW. WORK_PACKAGE_ID to fill the coumn FK in table child.

  You can also use ITEM_ID_SEQ. CURRVAL who will repeat the last number that was created, and I suppose that you use to fill A table.

  Hope that helps,
  Martin

• Why Developer SQL displays arrows (relations) between parent and child tables in my entity relationship diagram?

  Hello

  
  

  Oracle version:                     Oracle Database 11 g Release 11.1.0.7.0 - 64 bit Production

  The version of SQL Developer: 4.0.2.15 - 15.21 build

  I have a question about drawing diagram, entity-relationship with SQL Developer & I would be grateful if you could kindly give me a helping hand.

  I would like to draw an entity-relationship diagram in order to better visualize the relationship between multiple tables. After a google search, I found the following interesting article indicating the procedure to be followed:

  http://www.Oracle.com/technetwork/issue-archive/2014/14-may/o34sqldev-2193423.html

  (What I need and I'm trying to produce is Figure 4 in the article above)

  I made exactly as stated in the article & apparently everything has worked well enough, in other words, I had several UML as rectangles showing columns of tables, their data types, primary and
  foreign key and the arrows indicating the link between each parent/child table.

  Later, I tried to do the same thing on a different oracle instance and a different database by using the same procedure. Yet, something strange happened this time. Developer SQL printed on-screen tables, once again,.
  inside the rectangles with types, keys,... but, there was no arrow showing the link between the tables, I just saw on the grid the selected tables but without any association/relationship shown (as a symbol of an arrow)
  between them.

  I repeated the procedure on another instance of development, with a few test tables that I created with primary and foreign keys just to make sure I had followed the procedure correctly. Once again

  the test was successful, but when I repeated the test on another instance, the same problem persisted, in other words, no arrow (relationship) between tables.

  Any idea?

  This could be due to a lack of privilege on the instance? If Yes, what should be granted in what about roles?

  Thanks in advance

  I think that what you see is that not all databases have foreign keys - applications hard-coding relationships vs let the database to handle this.

  Connect to this instance different oracle and browse the tables affected - have FK constraints defined on them?

• Stuck on a sql query to search for records that have the same parent child records

  Oracle 10 g 2 Enterprise Edition.
  
  Hello
  
  I'm writing a logic to find records in a parent table, who have the same values in a child table.
  This is part of a larger application, but I am stuck on that part for now, so I have mocked some of the below simplified tables to capture the heart of the
  the problem is that I'm stuck.
  Let's say I have a responsible parent, child employee table table and there are a number of many relationships between them.
  The aptly named Join_Table manages the relationship between them. If a manager can manage several employees, an employee can be managed by
  many managers.
  
  I have a feeling it's stupidly easy, but it seems to me having a bad episode of brain freeze today!

  -- parent table
  CREATE TABLE manager (
   id      number primary key,
   name      varchar2(100));
  
  -- child table 
  CREATE TABLE employee (
   id          number primary key,
   name      varchar2(100));
  
  -- link table
  CREATE TABLE join_table (
   manager_id          NUMBER, 
   employee_id      NUMBER,
   CONSTRAINT join_table_pk PRIMARY KEY (manager_id, employee_id),
   CONSTRAINT manager_fk FOREIGN KEY (manager_id) REFERENCES manager(id),
   CONSTRAINT employee_fk FOREIGN KEY (employee_id) REFERENCES employee(id) 
   );
  
  -- Insert some managers
  INSERT INTO manager (id, name) VALUES (1, 'John');
  INSERT INTO manager (id, name) VALUES (2, 'Bob');
  INSERT INTO manager (id, name) VALUES (3, 'Mary');
  INSERT INTO manager (id, name) VALUES (4, 'Sue');
  INSERT INTO manager (id, name) VALUES (5, 'Alan');
  INSERT INTO manager (id, name) VALUES (6, 'Mike');
  
  -- Insert some employees 
  INSERT INTO employee (id, name) VALUES (101, 'Paul');
  INSERT INTO employee (id, name) VALUES (102, 'Simon');
  INSERT INTO employee (id, name) VALUES (103, 'Ken');
  INSERT INTO employee (id, name) VALUES (104, 'Kevin');
  INSERT INTO employee (id, name) VALUES (105, 'Jack');
  INSERT INTO employee (id, name) VALUES (106, 'Jennifer');
  INSERT INTO employee (id, name) VALUES (107, 'Tim');
  
  -- Insert the links
  -- John manages Paul, Simon, Ken
  INSERT INTO join_table (manager_id, employee_id) VALUES (1, 101);
  INSERT INTO join_table (manager_id, employee_id) VALUES (1, 102);
  INSERT INTO join_table (manager_id, employee_id) VALUES (1, 103);
  -- Bob manages Paul, Simon, Kevin, Jack
  INSERT INTO join_table (manager_id, employee_id) VALUES (2, 101);
  INSERT INTO join_table (manager_id, employee_id) VALUES (2, 102);
  INSERT INTO join_table (manager_id, employee_id) VALUES (2, 104);
  INSERT INTO join_table (manager_id, employee_id) VALUES (2, 105);
  -- Mary manages Jennifer, Tim
  INSERT INTO join_table (manager_id, employee_id) VALUES (3, 106);
  INSERT INTO join_table (manager_id, employee_id) VALUES (3, 107);
  -- Sue manages Jennifer, Tim
  INSERT INTO join_table (manager_id, employee_id) VALUES (4, 106);
  INSERT INTO join_table (manager_id, employee_id) VALUES (4, 107);
  -- Alan manages Paul, Simon, Ken, Jennifer, Tim
  INSERT INTO join_table (manager_id, employee_id) VALUES (5, 101);
  INSERT INTO join_table (manager_id, employee_id) VALUES (5, 102);
  INSERT INTO join_table (manager_id, employee_id) VALUES (5, 103);
  INSERT INTO join_table (manager_id, employee_id) VALUES (5, 106);
  INSERT INTO join_table (manager_id, employee_id) VALUES (5, 107);
  -- Mike manages Paul, Simon, Ken
  INSERT INTO join_table (manager_id, employee_id) VALUES (6, 101);
  INSERT INTO join_table (manager_id, employee_id) VALUES (6, 102);
  INSERT INTO join_table (manager_id, employee_id) VALUES (6, 103);
  
  -- For sanity
  CREATE UNIQUE INDEX employee_name_uidx ON employee(name);

  If I ask for Manager John, so I want to find other managers who manage the exact list and even employees.
  Answer should be Mike.
  If I ask for Manager of Mary, the answer should be Sue.
  
  This query will give me the list of managers who manage some of the same employees as John, but not the same employees accurate...

  SELECT DISTINCT m.name AS manager
  FROM manager m, join_table jt, employee e
  WHERE m.id = jt.manager_id
  AND jt.employee_id = e.id
  AND e.id IN (
       SELECT e.id
       FROM manager m, join_table jt, employee e
       WHERE m.id = jt.manager_id
       AND jt.employee_id = e.id
       AND m.name = 'John')
  ORDER BY 1;

  I thought about using set operations to find managers with a list of employees less than my employees is null and where my employees under their list of employees is null. But there must be an easier way more elegant.
  Any ideas?
  BTW, I need to run as a batch on tables with > 20 million rows so the efficiency of queries is key.

  What about...

  WITH manager_list AS
  (
   SELECT name,
          LTRIM(MAX(SYS_CONNECT_BY_PATH(id,','))
          KEEP (DENSE_RANK LAST ORDER BY curr),',') AS employees
   FROM   (SELECT m.name,
                  e.id,
                  ROW_NUMBER() OVER (PARTITION BY m.name ORDER BY e.id) AS curr,
                  ROW_NUMBER() OVER (PARTITION BY m.name ORDER BY e.id) -1 AS prev
           FROM   manager m,
                  join_table jt,
                  employee e
    WHERE m.id           = jt.manager_id
    AND   jt.employee_id = e.id
    AND   m.name = :P_MANAGER)
    GROUP BY name
    CONNECT BY prev = PRIOR curr AND name = PRIOR name
    START WITH curr = 1
  ), all_list AS
  (
   SELECT name,
          LTRIM(MAX(SYS_CONNECT_BY_PATH(id,','))
          KEEP (DENSE_RANK LAST ORDER BY curr),',') AS employees
   FROM   (SELECT m.name,
                  e.id,
                  ROW_NUMBER() OVER (PARTITION BY m.name ORDER BY e.id) AS curr,
                  ROW_NUMBER() OVER (PARTITION BY m.name ORDER BY e.id) -1 AS prev
           FROM   manager m,
                  join_table jt,
                  employee e
    WHERE m.id           = jt.manager_id
    AND   jt.employee_id = e.id)
    GROUP BY name
    CONNECT BY prev = PRIOR curr AND name = PRIOR name
    START WITH curr = 1
  )
  SELECT a.*
  FROM   manager_list m,
         all_list a
  WHERE  m.employees = a.employees
  

  Would be easier in 11g, but I do not have a facility here so this is based on 10g.

  See you soon

  Ben

• How can I make sure that changes in a primary key (in the parent table) would also appear directly in the FOREIGN KEY in the child table?

  Forgive my question. I am very new to Oracle.

  How can I make sure that changes in the key primary supplier_id (concerning the supplier table) would also appear directly in the FOREIGN KEY (supplier_id) in the products table?

  Is that not all the primary key and FOREIGN KEY on?

  My paintings:

  I created 2 tables and connect to apply in the data base referential integrity, as I learned.

  CREATE TABLE - parent provider

  (the numeric (10) of supplier_id not null,)

  supplier_name varchar2 (50) not null,

  Contact_Name varchar2 (50).

  CONSTRAINT supplier_pk PRIMARY KEY (supplier_id)

  );

  CREATE TABLE - child products

  (the numeric (10) of product_id not null,)

  supplier_id numeric (10) not null,

  CONSTRAINT fk_supplier

  FOREIGN KEY (supplier_id)

  REFERENCES beg (supplier_id)

  );

  I inserted the following text:

  INSERT INTO provider

  (supplier_id, supplier_name, contact_name)

  VALUES

  (5000, 'Apple', 'first name');

  I expect that the supplier_id (5000) to the provider of the table also appears in the products table under key supplier_id having the same value which is 5000. But this does not happen.

  How to get there?

  Thanks in advance!

  Hello

  What is a foreign key in Oracle?

  A foreign key is a way to ensure referential integrity in your Oracle database. A foreign key means that the values of a table must appear also in another table.

  Ok!??

  What is now the right way to implement referential integrity in your Oracle database that the values of a table must also be included in another table?

  A foreign key referential integrity indeed enfore in ensuring that the value in the child table must have a corresponding parent key (otherwise you will encounter an error, as evidenced by "SomeoneElse"). However, it will never automatically insert a row in the other table.

  If you are looking for a solution that automatically inserts a record in the other table, maybe you should go for triggers:

  See:

  • http://docs.Oracle.com/CD/B28359_01/AppDev.111/b28370/triggers.htm#BABCIBBJ
  • Oracle: Help after HAVING INSERT and AFTER UPDATE triggers

• Oracle query convert recursive parent-child level columns

  Dear gurus,

  I have a Hyperion extracted dimension table with my COA in a parent/child layout:

  parent, child

  Acc01, acc001

  acc001, acc0001 etc.

  I need to convert to the:

  level 2, level 1, Level0

  Acc01, acc001, acc0001 etc.

  Please advise, need to feed table table schema for reporting.

  Concerning

  Yannis

  with

  data in the form of

  (select "C01" parent, child 'C001' Union double all the)

  Select 'C001', 'C0001' from dual union all

  Select 'C001', 'C0002"dual union all

  Select "C01", "C002' from dual union all

  Select "C0001', 'C00001' from dual union all

  Select "C00001', 'C000001' from dual union all

  Select 'C000001', 'C0000001' from dual

  )

  Select leve1_1, level_2, level_3, level_4, level_5, level_6

  from (select root0, lvl0, regexp_substr(path,'[^,]+',1,level) VAC, level lvl

  of (lvl0 level select,

  connect_by_root parent root0,

  parent connect_by_root | path of SYS_CONNECT_BY_PATH (Child, ',')

  from the data

  where connect_by_isleaf = 1

  Start with parent (select parent

  data d

  If not exists (select null

  from the data

  where child = d.parent

  )

  )

  connect by prior child = parent

  )

  connect by level<=>

  and prior root0 = root0

  and prior lvl0 = lvl0

  and prior sys_guid() is not null

  )

  Pivot (max (VAC) for lvl 1 as leve1_1, 2 level_2, 3 level_3, 4 level_4, 5 level_5, 6 level_6)

  LEVE1_1	LEVEL_2	LEVEL_3	LEVEL_4	LEVEL_5	LEVEL_6
  C01	C002	-	-	-	-
  C01	C001	C0002	-	-	-
  C01	C001	C0001	C00001	C000001	C0000001

  Concerning

  Etbin

• in the query and parent/child relationship

  WITH the data AS

  (

  SELECT '213NY1' lfrom, NULL, '215ZVD' mi lto, "215ZV9 ' id, 1 January 2014' sdate, January 2, 2014' edate, 3 January, 2014 'mdate' January 5, 2014 medate double UNION ALL.

  Lfrom SELECT NULL, '215ZVD' mi, id "213NY1", "215ZV9" lto 4 January 2014 'sdate', 6 January 2014 edate, January 7, 2014 'mdate', 8 January 2014 medate double UNION ALL

  SELECT '216TVZ' lfrom, NULL, "213JW7" e "217LVQ" id lto, 21 January, 2014 'sdate' January 9, 2014 edate, 10 January 2014 'mdate', 11 January 2014 medate double UNION ALL

  SELECT lfrom "215Y71", "217LVQ" lto, mi, "216TVZ" id "213JW7", 22 January, 2014 'sdate' January 23, 2014 edate, 24 January, 2014 'mdate' January 25, 2014 medate double UNION ALL

  SELECT '234IJF' lfrom, NULL, "234YU" e "3IUED" id lto, 26 January 2014 'sdate', 27 January 2014 edate, 28 January 2014 'mdate', 29 January 2014 medate OF double

  )

  some lines have parent/child relationship and some does not. for example, the first two query (data) are link together. online, the value of lto (215ZV9) corresponds to the id value

  in line 1.  the value of lfrom in row1 (213NY1) corresponds to the value of online id.

  the same scenario occurs in rows 3 and 4.  5th doesn't have any line which is a child. tier 5 is a single parent

  I want to WRITE a query that gives the following result.

  Mid id initial_date final_date

  =======================================

  215ZVD 215ZV9 1 January 2014 "January 5, 2014"

  "215ZVD 213NY1 7 January 2014" January 6, 2014 "

  "213JW7 217LVQ 21 January 2014 ' 11 January 2014"

  "213JW7 216TVZ 24 January 2014 ' 23 January 2014"

  "234YU 3IUED 26 January 2014 ' 27 January 2014"

  ONLY WHEN there is a parent/child relationship, initial DATE AND follow the final data WHAT such as

  FIRST date of deadline DATE

  < Mdate > < EDate > - for child

  < SDate > < MEDate > - for parent

  WHEN there is no relationship of parent/child (e.g. ONLY a parent ROW) THEN

  FIRST date of deadline DATE

  < SDate > < EDate-> parent

  can someone help me write a query for the above output

  with tt AS

  (SELECT a.*,

  ROW_NUMBER () ON LV (MIDDLE ORDER BY SDATE PARTITION),

  CASE

  WHEN ID = NVL (ADVANCE (lto, 1) OVER (PARTITION BY Middle ORDER BY sdate), LAG (lfrom) OVER (ORDER BY sdate Middle PARTITION))

  THEN 1

  END flg

  DATA one

  )

  SELECT THE MIDDLE,

  ID,

  CASE

  WHEN flg IS NOT NULL

  THEN

  CASE

  WHAT LV = 1

  THEN SDATE

  WHAT LV = 2

  THEN mDATE

  END

  Of ANOTHER sdate

  END INITIALDATE

  CASE

  WHEN flg IS NOT NULL

  THEN

  CASE

  WHAT LV = 1

  THEN mEDATE

  WHAT LV = 2

  THEN EDATE

  END

  Of ANOTHER edate

  END FINALDATE

  TT;

  Output:

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

  MID ID INITIALDATE FINALDATE

  213JW7 217LVQ 21 January 2014 January 11, 2014

  213JW7 216TVZ 24 January 2014 23 January 2014

  215ZVD 215ZV9 January 1, 2014 5 January 2014

  215ZVD 213NY1 January 7, 2014 6 January 2014

  234YU 3IUED 26 January 2014 January 27, 2014

• BULL, INSERTION IN THE PARENT TABLE AND THE CHILD TABLE

  Hi all
  
  We use bulk insert to improve performance. How to use this concept when I insert the records parent in table parent and child?
  
  example... I have a procedure that accepts the array of student objects
  
  each student object is defined as *(student name, student age, course_object_array) *.
  
  the 3rd element course_object_array is defined as *(coursename,course fee,facultyname) *.
  
  a student can be associated with several courses
  
  Now, I have to insert the data into two tables namely students (studentname, studentage and student_number)
  courses (course_id, coursename, fees, facultlyname, student_number)
  
  I use sequences to fill the columns student_number and course_id.
  
  If I use bulk insert, and insert all the records in the parent table how do I the association for each record of a child. How will I know what child folder must be associated with which of the parents?
  
  Concerning
  REDA

  raj_fresher wrote:
  Hi thanks for the reply Solomon.

  I actually know about the bulk collect and for all...

  Have you read that FOR ALL with in fact BULK COLLECT? It will allow you to bulk insert via for ALL with VOTING student_numbers attributed to each student placed in a collection. Then, you will use this collection collection of course list to fill the RACE table.

  SY.

• Parent child query

  I got the exit for parent-child relationships
  
  Select
  LPAD (' ', 2 * level) | child
  Of
  prune_test
  Start by
  parent is null
  connect
  child precondition = parent
  
  as
  1
  -12
  -120
  -124
  -127
  -712
  -7122
  -7125
  -7127
  
  But I want like
  Parent child Child1 2 child3
  1
  1 12
  1 12 120
  1-12-124
  1-12-127
  1 12 712
  1 12 712 7122
  1 12 712 7125
  1 12 712 7127
  
  Can someone help me...
  Thank you
  Mani
  
  Published by: Mani on November 4, 2010 18:54

  Do you just need a sys link by road

  with prune_test as
  (select null parent, 1 child from dual union all
   select 1, 12 from dual union all
   select 12, 120 from dual union all
    select 12, 124 from dual union all
     select 12, 127 from dual union all
     select 12, 712 from dual union all
     select 712,71522 from dual union all
     select 712, 7125 from dual union all
     select 712, 7127 from dual
     )
  
  select
  lpad(' ', 2*level) || child, sys_connect_by_path(child,' ')
  from
  prune_test
  start with
  parent is null
  connect by
  prior child=parent 
  

  LPAD('',2*LEVEL)||CHILD     SYS_CONNECT_BY_PATH(CHILD,'')
    1           1
      12            1 12
        120      1 12 120
        124      1 12 124
        127      1 12 127
        712      1 12 712
          71522      1 12 712 71522
          7125      1 12 712 7125
          7127      1 12 712 7127
  

• Create a parent child

  in collaboration with JDev12.1.2.

  I have a view object that is based on a query. I then another editable view object from an entity. 2 then have a link with a field view id. The VO being the parent and the VO entity based application shall name a child and having a 0.1 - 1 ratio. How can I display a table with each row in the table parent with a child, even if the child does not yet exist. I don't want to have to go and click a button create/insert for each record in the table.

  I was finally able to get it figured out. I had to get rid of my request based on VO and create 2 entity with an association to the entity objects. I then created a VO using the 2 entities and the Association. Then when I created a table of the VO it displays blank fields for the (child table) that you could call it. Then to commit it inserted records children if I entered what anyone in the fields. I had a problem with them not fixing is not the ID that connected the 2 entities, but I managed to fix that in the file VORowImpl of java.

• Get the parent-child hierarchy of column delimited

  I've been on this forum once before, and someone helped me, so I hope I can get help again!

  4-15-5987');

  Thus, the hierarchy is divided on the hyphen. first parent being 4245, then the next value is-4 (including the hyphen) and what follows is - 1, for example

  CREATE TABLE REGEXTEST
    ( ITEM VARCHAR(20)); 
  
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-1');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-10');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-11');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-12');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-13');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-14');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-15');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-15-59A7');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-15-59D7');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-4-15-59F7');
    INSERT INTO REGEXTEST (ITEM) VALUES ('4245-
  
  

  I have to be able to bind-1, -4, 4245. Perhaps the simplest is to build a new table with a primary key where it is assigned the id of the parent to the child.
  I just can't understand how to divide the individual elements and maintain the hierarchy. As previously mentioned, someone helped me with another part of the problem before where I needed to maintain the entire path of each child with the following query:

  select  nvl(prior item,item) parent,
          nvl2(prior item,item,null) child
    from  REGEXTEST
    connect by substr(item,1,instr(item,'-',-1) - 1) = prior item
    order by child,parent
  
  

  Now, if I could extrapolate that into a new table:

  CREATE TABLE FileHierarchy
  (ItemID INT NOT NULL PRIMARY KEY,
  ItemName varchar(50) NOT NULL,
  ParentID INT NULL);
  
  

  ItemName is the 4245 or - 4 or - 1 (only) - Yes, including the hyphen.

  The ID of the parent-1 would be the ID-4, etc...

  Thank you very much in advance!

  J.F. Larente

  Solution for not having stored the high level:

  SQL > select *.
  regextest 2
  3.

  POINT LEV
  -------------------- ----------
  4245 4
  4245 4-1
  4245 4-10
  4245 4-11
  4245 4-12
  4245 4-13
  4245 4-14
  4245 4-15
  4245 4-15-59 A 7
  4245 4-15-59 D 7
  4245-4-15-59F7

  11 selected lines.

  SQL > with t1 as)
  2. Select item
  regextest 3
  4 Union all the
  5 select distinct substr (item, 1, instr(item,'-',1))
  6 of regextest
  7             ),
  8 t2 as)
  9. select element,
  10 row_number() on id (order by article)
  11 from t1
  12              )
  13. select id,
  14 regexp_substr (rtrim (point,'-'), case level when 1 then ' [^-] + $' other '-[^-] + $' end) child.
  parentID 15 prior id,
  16 regexp_substr (prior rtrim (point,'-'), case level - 1 when 1 then ' [^-] + $' other '-[^-] + $' end) parent
  17 of t2
  beginning 18 with substr(item,-1) = '-'
  19 connect by substr (item, 1, instr(item,'-',-1) - 1) = prior rtrim(item,'-')
  20 and article! point prior =
  21.

  ID PARENTID PARENT CHILD
  ---------- -------------------- ---------- --------------------
  1 4245
  2 -4                            1 4245
  3 -1                            2 -4
  4 -10                           2 -4
  5 -11                           2 -4
  6 -12                           2 -4
  7 -13                           2 -4
  8 -14                           2 -4
  9 -15                           2 -4
  10-59A 7 9-15
  11 59 D 7 9 - 15

  ID PARENTID PARENT CHILD
  ---------- -------------------- ---------- --------------------
  12 59F7 9-15

  12 selected lines.

  SQL >

  SY.