Query information from the parent table and a row of child table information

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  I have a parent EMPLOYEE table that includes columns (sysid, serviceno, employeename...) sysid is the primary key, serviceno is the Unique key and I have DEPENDENT child table includes columns (sysid, employee_sysid, name, date of birth...) there still SYSID is a primary key for the table of dependants, employee_sysid is a foreign key in the EMPLOYEE table.
  
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  first disable FOREIGN KEY constraints.
  You can update Parent and child record with the help of the trigger.
  Here I give you an examlpe... It can help u.

  create a parent (id number primary key, name varchar2 (100)) table
  /
  create table child_1 (primary key id, p_id number number, date of birth, date)
  CONSTRAINT FK_id FOREIGN KEY (p_id) REFERENCES parent (ID))
  /
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  /

  Insert some test data for the parent tables and children.

  change the constraint to disable child_2 table FK_id2
  /
  change the constraint to disable child_1 table FK_id2
  /

  CREATE OR REPLACE TRIGGER delete_child
  BEFORE parent UPDATE ON
  FOR EACH LINE
  BEGIN
  UPDATE CHILD_1
  P_ID =:NEW.ID SET
  WHERE P_ID =:OLD.ID;
  UPDATE CHILD_2
  SET = P_ID2: NEW.ID
  WHERE P_ID2 =:OLD.ID;
  END;
  /

  then Upadte parent table primary key col and check the children tables.
  do enable constraints...

• Select values from the db1 table and insert into the DB2 table

  Hello
  
  I have three databases oracle running in three different machines. their ip address is different. among the DB can access databases. (means am able to select values and insert values into tables individually.)
  
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  Some operating environments require that the service names be placed between double quotes.

  From a SQL * Plus term on DB3, can resemble the command to move all content from my_table in DB1 to the same table in DB2

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  INSERT INTO my_table -
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  Note the SQL code * more line-continuation character ' - '. It is used to escape the newline character in a SQL * Plus command if you do not have to type all on one line. I use it all the time with this command, but I can't locate the documentation on that right now. Maybe someone else can put their finger on it.

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• 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.
  
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  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.

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  Wrote file afiedt.buf
  
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• From the versioned tables link to another diagram

  Hello!
  
  We are currently assessing the mechanisms of synchronization of data as possible for a future database that must use data from a database of existing B.
  option 1 is the simplest: export data from B, import in A and you're done. the problems are of course used those like arguing with Exim, how up-to-date the data is, etc.
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  Thanks for the advice in advance!
  
  Kind regards
  
  Andreas

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  Kind regards
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• XML from the Oracle Table data

  Hi all
  
  I'm new to this network. I'm also new to oracle XML package. I want a help with the query below.
  
  CREATE TABLE EMP (ID NUMBER PRIMARY KEY, NAME VARCHAR2 (10), TELEPHONE NUMBER);
  
  INSERT INTO EMP (ID, NAME, PHONE) VALUES (11, 'Joy', 1234);
  INSERT INTO EMP (ID, NAME, PHONE) VALUES (22, 'Mike', 5678).
  INSERT INTO EMP (ID, NAME, PHONE) VALUES (33, "Jason", NULL);
  COMMIT;
  
  I want to export data from the EMP table in an XML file with the format below.
  
  Power required:
  
  <? XML version = "1.0" encoding = "UTF-8"? > < Joy STATICDATA > < EMP > < ID > 11 < /ID > < NAME > < / NAME > < / EMP > < / STATICDATA >
  <? XML version = "1.0" encoding = "UTF-8"? > < Mike STATICDATA > < EMP > < ID > 22 < /ID > < NAME > < / NAME > < / EMP > < / STATICDATA >
  <? XML version = "1.0" encoding = "UTF-8"? > < Jason STATICDATA > < EMP > < ID > 33 < /ID > < NAME > < / NAME > < / EMP > < / STATICDATA >
  
  I used some XML functions and you wrote the following query.
  
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  my query output:
  
  <? XML version = "1.0" encoding = "UTF-8"? >
  < STATICDATA >
  < EMP >
  < ID > 11 / < ID >
  Joy of < NAME > < / NAME >
  < / EMP >
  < / STATICDATA >
  <? XML version = "1.0" encoding = "UTF-8"? >
  < STATICDATA >
  < EMP >
  < ID > 22 / < ID >
  < NAME > Mike < / NAME >
  < / EMP >
  < / STATICDATA >
  <? XML version = "1.0" encoding = "UTF-8"? >
  < STATICDATA >
  < EMP >
  < ID > 33 / < ID >
  Jason < NAME > < / NAME >
  < / EMP >
  < / STATICDATA >
  
  
  But I want the out as the power required above. all records in a single line. can someone help me achieve the desired output. also can I export all columns of the table with something like select * from the table in the XML file?
  
  Thank you
  Delobelle

  Don't know why you need it on a single line, but you could:

  Select XMLTYPE (REGEXP_REPLACE (XMLROOT (XMLELEMENT (staticdata, XMLELEMENT (EMP, XMLELEMENT(ID,ID), XMLELEMENT(NAME,NAME))), version "1.0" encoding = "UTF - 8'), CHR (10) |)) ' *<><'))>
  FROM EMP;

  SY.

• referential integrity with a view to the parent table

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• missing parenthesis in insertion into separate lines select the table from the other table

  Hello

  could you help me with the following question?

  I have the following tables

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  ID varchar (12),

  col2 varchar (10),

  COL3 varchar (10),

  level varchar (10))

  CREATE TABLE table2)

  Id2 varchar (12)

  A varchar (10),

  B number (1)

  CONSTRAINT PRIMARY KEY PK (ID2, is));

  INSERT INTO table2 (ID2, A, B) SELECT ID, col2

  MAX (CASE WHEN level = "level 1" then 1

  level = 'level 2' then 2

  Level = 3 then 'niveau3') as colIN3)

  FROM table1 GROUP BY ID2, a.;

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  Thanks adavance.

  Kind regards

  Hello

  Remember the ABC's of the GROUP BY:

  When you use a GROUP BY clause or in an aggregate function, then all in the SELECT clause must be:

  (A) a ggregate function,

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  (C) adding to C, or

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  To ask him, there are 5 columns in the SELECT clause.  The last one is a function MAX (...); It is an aggregate, is not serious.

  The first 2 columns are also named in the GROUP BY clause, so that they are well.

  The other 2 columns, country and internal_Id do not match any of the above categories.  These 2 columns cause the error.

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