How to match columns from two tables with

I have two tables as below:

Table1::(Base Table)
Country | Prefix | Prefix_Length
Travel | 001 | 3
CountryB. 0012 | 4
PaysC | 00443 | 5
CountryD | 0091 | 4

:(Detail Table) table2
The population | Area | Prefix
500 | AreaA | 0015921
1000 | AreaB | 00122
400. AreaC. 00443743
300. ALIS | 0091333
100. AreaA | 001

I need to match these two tables with prefix columns (whose length is not fixed in the two tables: but it starts with 00 in the two tables). Two different countries the prefix may be similar up to a certain length. Thus, Prefix_Length can be used to determine (exactly) how much time should be taken in the search of Table2.

Country | Prefix | Area | Population
Travel | 001 | AreaA | 600
CountryB. 0012 | AreaB | 1000
PaysC | 00443 | AreaC. 400
CountryD | 0091 | ALIS | 300

Please help me with your valuable comments.


Try this

with base_table as (
                    select 'CountryA' country,'001' prefix,3 prefix_length from dual union all
                    select 'CountryB','0012',4 from dual union all
                    select 'CountryC','00443',5 from dual union all
                    select 'CountryD','0091',4 from dual
   detail_table as (
                    select 10 no_of_call,'0015921' prefix from dual union all
                    select 3,'00122' from dual union all
                    select 50,'00443743' from dual union all
                  select 50,'00443643' from dual union all
                    select 300,'0091333' from dual union all
                    select 60,'001' from dual

SELECT  country,
   FROM (
         select  country,
        decode(no_of_call,lead(no_of_call,1,0) over(partition by no_of_call order by b.prefix,no_of_call),'y','n') y_or_no
  from  base_table b,
        detail_table d
  where b.prefix = substr(d.prefix,1,prefix_length))
  where y_or_no !='y'
  group by  country,
  order by country,

Published by: Vi on 20 February 2012 01:07

Tags: Database

Similar Questions

  • How to export data from the table with the colouring of cells according to value.

    Hi all

    I use jdeveloper

    I want to export data from the table with a lot of formatting. as for color cells based on value and so much. How to do this?

    You can find us apache POI-

    See this

  • Several lines to a format of columns from two tables

    Oracle Database 11 g Enterprise Edition Release - 64 bit Production

    The difficulty to return several lines simple lines/columns in two tables.

    Table 1:

    1 1001
    1 2001
    2 1010
    3 1020

    Table 2:

    1001 JOHN_1
    2001 JOHN_2
    MARY 1010
    1020 JUNE

    Desired output:

    1 1001 JOHN_1 2001 JOHN_2
    2 MARY 1010
    3-1020 JUNE

    There are an unknown number of BOOK_NBR to one ID.

    Any guidance would be appreciated.
  • Delete rows in a table when the columns from two tables match


    I have following two tables.


    create the table empbooth as


    Select 1 empid, 1 double cabin Union all the

    Select option 2, Union 1 double all the

    Select 3, Union 1 double all the

    Select option 4, Union 2 double all the

    Select option 5, 2 double


    create the table attsht as


    Select 1 empid, 240 reg, 0 unpaid all double union

    Select option 2, reg 200, 0 unpaid of all the double union

    Select 3, 240 reg, 0 unpaid all double them union

    Select 4 480 reg, 0 unpaid all double union

    Select 5 240 reg, unpaid double 0



    I want to remove rows from attsht where corresponding booth (which is stored in the empbooth table) is 1.

    The condition is 'where attsht.empid = empbooth.empid and empbooth.booth = 1 '.

    I use oracle 10g.

    Help, please

    delete from attsht where a.empid in (select b.empid from empbooth b where b.booth = 1)


    remove from attsht a

    where exists (select null

    of empbooth b

    where b.booth = 1

    and b.empid = a.empid)

  • Find unmatched columns from two tables

    Hello guys,.

    I am trying to compare two tables based on a key of the indexed columns.

    Here is an example of what I'm trying to achieve:

    Table A: A_ID A_Name A_Income A_housecount
    Jess 11 9 2
    Rauny 4 6 22

    Table b: B_ID B_Income B_housecount
    22 6 4
    In the example above data columns A_ID and B_Id are same in both tables. I'm trying to compare A_Income with B_Income & & A_housecount with B_housecount. The results of this series of samples would be:


    as income in the same id is different.

    As I have large amount of data in the two tables can you please give me some ideas on how I can get my results? Let me know if the explanation is not clear for you.

    Thanks in advance
    select hshold_id,hsold_income,hshold_size,
           'abc.' || case count(src1) when 0 then 'demo' else 'hshold' end the_source
      from (select hshold_id,hsold_income,hshold_size,
                   1 src1,
                   to_number(null) src2
              from abc.hshold
            union all
            select hshold_id,hsold_income,hshold_size,
                   to_number(null) src1,
                   2 src2
              from abc.demo
     group by hshold_id,hsold_income,hshold_size
     having count(src1) != count(src2)



    Edited by: Etbin on 11.2.2011 18:00
    correction of alignment

  • How to remove columns from the table on the master 1-0?

    I have an array of 96 columns with strings. I also have the array of int 96-elemets (mask) with 1 and 0.

    What I want to do is to is to remove (or hide - but I read that it is not possible) all the columns with index corresponding to 0 in the mask table.


    columns in the table

    1 2 3 4 5


    0 1 0 0 1

    I want to remove the columns 1, 3 and 4 and leave only 2 and 5 in my table.

    How can I do?

    If I create loop for with i as the index of the column, when I do DeleteTableColumns() columns number decreases, and I get an error of range out of

    Or do I have an option to hide the unnecessary columns (not set their width to 1, it's very ugly-looking)?

    Please help me (())

    Hello rovnyart!

    1. removal of columns in the table:

    I suspect that the reason why you get the out-of-range error is due to fact that in your loop, you delete the columns in the table, you'll eventually end up by referring to a column that no longer exists, because the other columns before it have been deleted. While you remove each column of your table in the loop for example, the column index number will move, because you deleted the other columns in front of her.

    To resolve this, even if you delete a column in your loop, make sure that you take also into account that the index of the column is moved because of the removed columns.

    2 hide columns in table:

    You can use the ATTR_COLUMN_VISIBLE attribute to hide columns in the table:

    3 alternatives:

    Note that another alternative would also use a tree instead, control as the tree control also supports the hidable columns:

    Best regards!


  • How to delete columns from a table


    I have a 2D chart composed of 12 columns. I want to just use the first three columns within LabView. What is the best way to extract the data from these three columns?



    You can watch from two different angles:

    • You can remove the extra columns
    • You can keep only the fist three columns

    Would be easier to use "subset of the table" and select the first three columns. See photo.

    (This assumes you want the three columns as a 2D array. If you want in three tables 1 d, you would use 'index array' resized to three exits.)

  • How to copy columns from one table to another

    Hai All

    How to copy the contents of the array to another

    For example, first name of the table is T1 and I have 10 columns and data are here and I need to create a table T2

    But I don't need the header, but not the values of all the 10 columns of T1 to T2, but not values

    Thanks and greetings


    Why not?

    create table test1
       select * from emp
       where 1 = 2;

    Kind regards.


  • How to merge data from the table with a single line


    I have three tables subscription_type, the address and the person. Here are the details of the table

    Person Subscription_type Address                                           

    Person_Id AdressType_id Address_id

    Person_name Description Address_type_id


    Address details

    There are three types of different address - home, postal and previous.

    Each person can have these three different addresses.

    I want to create a view that displays all addresses of three of each person in the table of the person in a single line.

    Any help please

    In your example, there are 2 rows of columns street1, TOWN, SUBURB etc for a single person. To convert this into a single line, with the new columns we could simply use CASES or DECODE in the select as the SQL below. To understand why consolidation function THAT MAX is used - remove the MAX and GROUP BY in SQL keyword and try.

    Select full_name

    , max (case when description = "Home" then end street1) Home_Street

    , max (case when description = "Home" then end suburb) home_suburb

    , max (case when description = end of the "Home" then City) home_city

    , max (case when description = "Home" then postal code end) home_postcode

    , max (case when description = "Home" then end state_name) home_state

    , max (case when description = 'Postal' then end street1) Postal_Street

    , max (case when description = 'Postal' and then end of suburb) Postal_suburb

    , max (case when description = 'Postal' then the city) Postal_city

    , max (case when description = 'Postal' and then end of CP) Postal_postcode

    , max (case when description = 'Postal' then state_name end) Postal_state

    , max (case when description = "Back" then end street1) Prev_Street

    , max (case when description = "Back" then end suburb) Prev_suburb

    , max (case when description = "Back" then city end) Prev_city

    , max (case when description = "Back" then postal code end) Prev_postcode

    address a

    S State

    No p

    Subscription_type att

    where a.person_id = p.person_id

    and a.state_id = s.state_id

    and a.address_type_id = att.address_type_id

    Full_name group

  • To find common data in 2 columns from two different tables.


    Could someone help me with a querry to discover common data of 2 columns from two different tables?

    Thank you

    Try as below.

    select col1 ,col2 from tab1
    select col1 ,col2 from tab2;
  • How to remove a column from a table in a dell identtiymananger 7.0

    How to remove a column from a table in a dell identtiymananger 7.0


    In Version 7 of the removal of a single custom column can be accomplished by a stored procedure, available in the database called: QBM_PColumnDrop

    Hope that helps.

    Cordially Fatih

  • histogram with just a few columns from a table

    I want to get a histogram of a few columns from a table (4 - 6-... 22)

  • Update multiple columns from multiple tables in a single UPDATE request


    I'm trying to figure if I'm heading in the right direction.

    I want to update multiple columns from multiple tables in a single UPDATE request. Also, I would like to update multiple columns in a table from the tables.

    Scenario 1

    UPDATE Table2, Table 3
    SET T2.Column1 = T1.Column1 
    ,T2.Column2 = T1.Column2
    ,T3.Column2 = T1.Column2
    FROM Table1 T1, Table2 T2, Table3 T3
    WHERE =
    and =

    Scenario 2

    UPDATE Table3
    SET T3.Column1 = T1.Column1 
    T3.Column2 = T1.Column2
    ,T3.Column3 = T2.Column3
    ,T3.Column4 = T2.Column4
    FROM Table1 T1, Table2 T2, Table3 T3
    WHERE =
    and =


    For scenario 1, you must write separate instructions UPDATE table2 and table3.

    To guard against someone else change one of these tables while you act so you can copy all relevant data in a global temporary table and update this global temporary table table3.

    ENGAGE only when two tables have been changed.

    You can write a procedure or an INSTEAD OF trigger to do all this.

    For scenario 2, you can reference many tables that you need when new table3.  It might be more efficient and simpler to use the MERGER rather than UPDATED.  For example:

    MERGE INTO table3 dst







    FROM table1 t1

    JOIN table2 t2 ON =

    )             src

    WE ( = src_id


    SET dst.column1 = src.column1

    dst.column2 = src.column2,

    dst.column3 = src.column3,

    dst.column4 = src.column4,


  • How to join this per_rating_levels this table with query table.

    Dear all,

    Guide how 2 join me per_rating_levels this table with query because, I want 2 see the against all employees.
    When I join this table with query it shows several recording/cortion against this record.


    PAPF.full_name employee_name,
    papf1.full_name supervisor_name,
    WOMEN'S WEAR. Employee_number,

    hr_general.decode_job (PAAF.job_id) job_name,
    Department of hr_general.decode_organization (PAAF.organization_id),
    PC.Name, PCE.Comments EmployeeComments,
    (by selecting pce1.comments in per_competence_elements pce1
    PCE.assessment_id = pce1.assessment_id
    AND pce.competence_id = pce1.competence_id
    AND pce1.object_id = pce.object_id) ManagerComments;

    --(sélectionnez dans rtl où les pc.) RATING_SCALE_ID = rtl. Name RATING_SCALE_ID)

    OF per_all_people_f women's wear.
    per_all_people_f papf1,
    per_all_assignments_f ADP,
    PA per_appraisals,
    pat per_appraisal_templates,
    per_assessments not,
    per_competence_elements pce,
    per_competences pc

    WHERE papf.person_id = paaf.person_id
    AND paaf.supervisor_id = papf1.person_id
    AND paaf.primary_flag = 'Y '.
    AND pa.appraisee_person_id = papf.person_id
    AND pa.appraisal_template_id = pat.appraisal_template_id
    AND pa.appraisal_id = pas.appraisal_id
    AND pat.assessment_type_id = pas.assessment_type_id
    AND pas.assessment_id = pce.assessment_id
    AND pce.object_id = papf.person_id
    AND pce.competence_id = pc.competence_id
    AND trunc (sysdate) BETWEEN papf.effective_start_date AND papf.effective_end_date
    AND trunc (sysdate) BETWEEN papf1.effective_start_date AND papf1.effective_end_date
    AND trunc (sysdate) BETWEEN paaf.effective_start_date AND paaf.effective_end_date

    - AND papf.employee_number =: p_employee_number
    - AND pa.appraisal_date =: p_appraisal_date
    - AND papf.business_group_id =: p_bg_id

    order of papf.employee_number


    user10941925 wrote:
    Dear all,

    Guide how 2 join me per_rating_levels this table with query because, I want 2 see the against all employees.
    When I join this table with query it shows several recording/cortion against this record.

    '2' in your question means "to"? If so please do not use text instant message in this forum.

    Now I suppose that PRE_RATING_LEVELS is a table in your application. And you are trying to include this table in an existing query. But in doing so, you have found the Cartesian product, correct?

    In fact, how do you think someone a public forum without any knowledge of your table and data structure could help you?

    Lets see, here's your query. I formatted.

    select papf.full_name                                       employee_name
         , papf1.full_name                                      supervisor_name
         , papf.employee_number                                 employee_number
         , hr_general.decode_job(paaf.job_id)                   job_name
         , hr_general.decode_organization(paaf.organization_id) department
         ,                                              name
         , pce.comments                                         employeecomments
         , (
              select pce1.comments
                from per_competence_elements pce1
               where pce.assessment_id = pce1.assessment_id
                 and pce.competence_id = pce1.competence_id
                 and pce1.object_id = pce.object_id
           )                                                    managercomments
      from per_all_people_f        papf
         , per_all_people_f        papf1
         , per_all_assignments_f   paaf
         , per_appraisals          pa
         , per_appraisal_templates pat
         , per_assessments         pas
         , per_competence_elements pce
         , per_competences         pc
     where papf.person_id           = paaf.person_id
       and paaf.supervisor_id       = papf1.person_id
       and paaf.primary_flag        = 'Y'
       and pa.appraisee_person_id   = papf.person_id
       and pa.appraisal_template_id = pat.appraisal_template_id
       and pa.appraisal_id          = pas.appraisal_id
       and pat.assessment_type_id   = pas.assessment_type_id
       and pas.assessment_id        = pce.assessment_id
       and pce.object_id            = papf.person_id
       and pce.competence_id        = pc.competence_id
       and trunc(sysdate) between papf.effective_start_date  and papf.effective_end_date
       and trunc(sysdate) between papf1.effective_start_date and papf1.effective_end_date
       and trunc(sysdate) between paaf.effective_start_date  and paaf.effective_end_date
        by papf.employee_number 

    Now, you want to add the PRE_RATING_LEVELS in the list so that you can use the column NAME.

    First thing you need to do is to determine the relationship between PRE_RATING_LEVELS and other tables. A relationship can be

    1. one on one
    2 one-to-many
    3. - to-several

    So when you tried to join, your state of health has resulted in 2nd or 3rd type of relationship. If you arrive with someone who knows the business and the data and find the table that could uniquely identify a line of PRE_RATING_LEVELS.

  • Explicit cursor, column from several tables in a variable

    Here's the situation. This DB has tables of metadata. An example of table name would be g3e_attribute. Once you insert a record in a metadata table a trigger of executions insert and insert records in the g3e_attribute_0009 table (table of language, this is what I call it). It would insert in g3e_attribute_000C is the default language is the French. There is also a delete trigger so that if you delete a record in a table of metadata it deletes the corresponding language table. Well, somehow we have entered the language tables that are not in the metadata table. A problem with the system.

    There are 139 tables of language so I prefer not to do it manually.

    So I'm keen to make this code

    delete < table language > where < primary > not in (select < primary > in < metadata table >).

    So I need to loop through the table and and the corresponding primary keys.

    I have this code to get the table names
    Select table_name, substr (table_name, 0, (length (table_name)-5)) in all_tables where table_name like 'G3E_ % _000% ';

    This will display both the language metadata tale table names and.
    The table of language with either _0009 or _000C as a suffix, I take everything but the last 5 characters to get the table metadata.

    And I have the code to find the primary key of the table.

    So I just need to loop through all the tables. Put these pieces together, that's where I encountered a problem. I started to do a procedure, but I ran into a problem.

    When you loop, you move the record being the explicit cursor in a variable. Well, you can set the variable as a vertain column type (%), or type (%ROWTYPE) of the line. Although the sql I use to create the cursor takes columns from multiple tables and returns three columns. So I'm not sure how ot define the variable. The only work around I found was to make a table column_name that contains the table table,. Define the variable as rowType.

    Is there an easier way to do this?

    Thank you

    A couple of points.

    You should not really mix ansi joins and joins in the place where clause. Choose a style and stick to it.

    You can't do the DDL directly in pl/sql. You need to do this, use dynamic sql. something like:

    create or replace
       select D.table_name, substr(D.table_name,0,(length(D.table_name)-5)),
       from all_tables D,
             on C.TABLE_NAME = D.TABLE_NAME
          join ALL_CONS_COLUMNS A
       where D.table_name like 'G3E_%_000%' AND
             C.CONSTRAINT_TYPE = 'P';
          execute immediate 'delete from '||v_langtable||' where '||v_PRIMKEY||
                            ' NOT IN(SELECT '||v_PRIMKEY||' FROM v_METATABLE)';
       END LOOP;


Maybe you are looking for

  • Sorry, for the moment, there is a problem with Hotmail

    A week now, the answers accepted with gratitude, it's ridiculous

  • Reinstall Windows XP.

    I'm trying to reinstall windows xp on laptop. But I'm unable to start the process. Does anyone know the key used to start? It's F10, F11, F12 or some other number? Thank you Ms. Rena

  • Network Magic and Cisco router EA4500 UID and password

    I use the 5.5.9150.0 version of the free product. I had my last router, with a WRT400N. Since then, I have installed an EA4500 router to replace the WRT400N. I'm glad that Network Magic works with my new router, but I have a problem: I can't connect

  • wma wave Dragon 12.5

    I wonder for a file to continue set up in Dragon Naturally Speaking 12.5. You can direct me to such a file. ?? Thank you very much.

  • Windows Media Center: Photos are wrong / unknown Date

    Windows Media Center 12 with Windows 7. Displaying photos with WMC in chronological order, it shows a date of 01/09/2010.  This date is not on the information file, or within the Exchangeable Image File (EXIF) metadata format.  Whence this date?  I w