Makes no sense to me-multi-table INSERT alias

small excerpt of the book, do not think that I needed to add many other things.

So, what do we do? The solution is to specify an alias for column to all column names

in subqueries that use a table alias, then reference it the column alias of the

rest of the INSERT conditional statement, as we do in lines 5 and 6 below (line

added numbers):

01 INSERT

02. WHAT (BOSS_SALARY-EMPLOYEE_SALARY < 10000) THEN

03. IN SALARY_CHART (EMP_TITLE, SUPERIOR, EMP_INCOME, SUP_INCOME)

04 VALUES (EMPLOYEE, BOSS, EMPLOYEE_SALARY, BOSS_SALARY)

05 SELECT A.POSITION EMPLOYEE,

06 B.POSITION BOSS,

07 A.MAX_SALARY EMPLOYEE_SALARY,

08 B.MAX_SALARY BOSS_SALARY

09 FROM POSITIONS A JOIN POSITIONS B

10. THE A.REPORTS_TO = B.POSITION_ID

11. WHERE A.MAX_SALARY > 100000;


Note that this version has done more than necessary and applied alias columns

for each column in the subquery, then referenced by these column alias of the

WHEN and VALUES clauses. We only needed columns on A.POSITION alias

and B.POSITION in lines 5 and 6, so we can refer to the alias column to line 4.

Whatever it is, this version of the INSERT conditional is syntactically correct.

Uh, have we not need to alias column for lines 7 and 8, so... (as he shows)? Otherwise use table alisases for a.max_salary & b.max_salary on line 2. And using aliases table is not in the INTO s/WHEN is multitable inserts.

Hello

2776946 wrote:

small excerpt from the book,

What book?  View the full title and page number or link

I didn't know that I had to add much.

So, what do we do? The solution is to specify an alias for column to all column names

in subqueries that use a table alias, then reference it the column alias of the

rest of the INSERT conditional statement, as we do in lines 5 and 6 below (line

added numbers):

01 INSERT

02. WHAT (BOSS_SALARY-EMPLOYEE_SALARY< 10000)="">

03. IN SALARY_CHART (EMP_TITLE, SUPERIOR, EMP_INCOME, SUP_INCOME)

04 VALUES (EMPLOYEE, BOSS, EMPLOYEE_SALARY, BOSS_SALARY)

05 SELECT A.POSITION EMPLOYEE,

06 B.POSITION BOSS,

07 A.MAX_SALARY EMPLOYEE_SALARY,

08 B.MAX_SALARY BOSS_SALARY

09 FROM POSITIONS A JOIN POSITIONS B

10. THE A.REPORTS_TO = B.POSITION_ID

11. WHERE A.MAX_SALARY > 100000;

Note that this version has done more than necessary and applied alias columns

for each column in the subquery, then referenced by these column alias of the

WHEN and VALUES clauses. We only needed columns on A.POSITION alias

and B.POSITION in lines 5 and 6, so we can refer to the alias column to line 4.

Whatever it is, this version of the INSERT conditional is syntactically correct.

Uh, have we not need to alias column for lines 7 and 8, so... (as he shows)? Otherwise use table alisases for a.max_salary & b.max_salary on line 2. And using aliases table is not in the INTO s/WHEN is multitable inserts.

It is true; you need an alias for at least 1 of these columns.  Each column in the query (lines 5-11), which is used elsewhere in the statement must have a unique name.  The query you posted called the columns in the result set

employee_salary and boss_salary.   You can also use

max_salary and patron of salary or

employee_salary and max_salary, giving an alias to only 1 of the 2 columns, but they must have unique names.

You're right on the table alias, too.  The scope of alias tables A and B is the query (lines 5-11).  Impossible to refer to A or B in lines 1-4.

Tags: Database

Similar Questions

  • IKM Oracle Multi Table Insert obsolete?

    The description for 'IKM Oracle Multi Table Insert' reads:

    -Snip-

    DEPRECATED: KM has been deprecated and may be removed without notice in future versions ODI. Please use the MTI ODI mappings feature.

    -Snip-

    Can someone tell me the right way to do it in 12 c?  Everything I tried publishes two inserts instead of an insert of all.

    Thank you

    Scott

    12 c, there is now a revenge for this called "IKM Oracle down".  He doesn't appear on the physical tab and cannot be imported because it is built in.

  • Possible to insert more than once in the same table using multi table insert?

    I used multi-table insert before insert a source separate from the tables without problem.

    However, when I want to insert into the same table two or more distinct lines, I encountered a problem because when I call nextval on the sequence since this is the same sequence # will try to use the same number for two inserts, which will raise a violation of PK constraint on the 2nd insert.

    A way around this problem?

    Another option is to create the sequence with increases of 2 or however many tables, you are targeting.
    When you then specify the. NEXTVAL, you must subtract the relative number of it, apart from the first table that you insert in to.

    Something like that;

    drop table t1;
    
    create table t1 (a number, b number);
    
    drop table t2;
    
    create table t2 (a number, b number);
    
    drop sequence test_seq
    /
    
    create sequence test_seq increment by 2 minvalue 0
    /
    
    insert all
    when 1 = 1 then
      into t1 (a, b) values (test_seq.nextval, 1)
    when 1 = 1 then
      into t2 (a, b) values (test_seq.nextval  - 1, 1)
    select 1, 1 from dual
    /
    
  • Deliver the trigger, multi-table insert logging of errors

    I find that if I try to perform an insert multi-table with logging of errors on a table that has a trigger, then some violations of constraints result in a raised exception being as connected:
    < pre >
    SQL > select * from v version $;

    BANNER
    --------------------------------------------------------------------------------
    Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
    PL/SQL Release 11.2.0.1.0 - Production
    CORE 11.2.0.1.0 Production
    AMT for 32-bit Windows: Version 11.2.0.1.0 - Production
    NLSRTL Version 11.2.0.1.0 - Production

    SQL > create table t1 (primary key of all id ;)

    Table created.

    SQL > create table t2 (id integer, t1_id integer primary key,
    2 constraint t2_t1_fk foreign key (t1_id) refers to t1);

    Table created.

    SQL > exec dbms_errlog.create_error_log ("T2");

    PL/SQL procedure successfully completed.

    SQL > insert all
    2 in t2 (id, t1_id)
    3 values (x, y)
    4 errors in the journal in err$ _t2 limit unlimited rejection
    5. Select 1 x, 2 double y;

    0 rows created.

    SQL > create or replace trigger t2_trg
    2 before insert or update on t2
    3 for each line
    4 start
    5 zero;
    6 end;
    5 m

    Trigger created.

    SQL > insert all
    2 in t2 (id, t1_id)
    3 values (x, y)
    4 errors in the journal in err$ _t2 limit unlimited rejection
    5. Select 1 x, 2 double y;
    Insert all
    *
    ERROR on line 1:
    ORA-02291: integrity constraint (enhanced oil recovery. T2_T1_FK) violated - key parent not found
    < code >

    This does not seem to be a documented restriction. Anyone know if this is a bug?

    Hi Tony,.

    Looks like you ran into Bug 9539578: INSERT ALL AND TRIGGER CAUSES ERROR LOGGING to FAIL (ROLLBACK)

    Concerning
    Peter

  • Error log can be used with multi table insert?

    I mean I want to insert into multiple tables and errors in the log for each table. Would this be possible?

    I tried something like below:

    in zzz_party)

    name,

    party_type,

    domicile_ctry_id

    ) (the values

    case

    Where rn = null then 14

    other name

    end,

    party_type,

    domicile_ctry_id

    ) Journal of log errors in zzz_err_party ("INS1")

    reject limit unlimited

    in zzz_party2)

    name,

    party_type,

    domicile_ctry_id

    ) (the values

    name,

    case

    Where rn = null then 14

    of other party_type

    end,

    domicile_ctry_id

    )

    Error log of journal zzz_err_party2 ("INS1")

    reject limit unlimited

    Select name, legal_name.

    case

    Where rownum = null then 14

    of other party_type

    end

    -t.domicile_ctry_id, rownum rn

    advantage t

    WHERE name like 'A %' and rownum < = 100

    ;

    And it does not work.

    Is there a way to do what I thought without having a separate select insert for each table with its own errors in the log?

    Whenever you have an error message the complete error message. "It doesn't work" is not an error message that others can understand.

    Looking in your statement, there are some flaws of syntax. I have fixed the. Try this

    insert all
    into zzz_party
    (
      name
    , party_type
    , domicile_ctry_id
    )
    values
    (
      case when rn=14 then  null else  name end
    , party_type
    , domicile_ctry_id
    )
    log errors into zzz_err_party ('ins1') reject limit unlimited
    into zzz_party2
    (
      name
    , party_type
    , domicile_ctry_id
    )
    values
    (
      name
    , case when rn=14 then null else party_type end
    , domicile_ctry_id
    )
    log errors into zzz_err_party2 ('ins1') reject limit unlimited
    select name
         , legal_name
         , case when rownum=14 then null else party_type end party_type
         , t.domicile_ctry_id
         , rownum rn
      from party t
     where name like 'A%'
       and rownum<=100;
    
  • ODI includes multi-table inserts?

    ODI interfaces are going against a single target data source.

    However, ODI can take advanced of the insert all, who may indeed have several segments against a single table?



    If not, is there a solution in ODI that can take data from a single data source and distribute it to multiple targets in a single pass?

    Hello Hans,.

    Currently we do not have the option of inserting data in multiple tables from target in a single pass

    For a need to move data in multiple tables in target, you can select one of the below method

    1. use several interfaces.

    2. use procedures ODI
    Steps: -.
    Write your select query on command on the source
    write your Insert query on command on the target

    Please let me know if you need more information on this.

    Kind regards
    Its

  • Multi Oracle Table inserts

    Hi every1,

    Do you know how do Oracle multi-table insert in ODI 11 g.

    Thank you
    Kishore.

    Hello

    Yes, you need to import IKM Oracle Multi table Insert location of reference ODI_HOME\oracledi\xm

    In ODi 11 g, you develop project > extend your knowledge Module > expand integration (IKM) and right click on even (integration (IKM) and choose Import Modules of knowledge... it will open a window KM, you them select above the location to directory import file: (search and select the location above) below text box area, you can see all kms toll-free) , out of them, you will need to select IKM Oracle Multi Table Insert KM and click on the OK button

    Kind regards
    Phanikanth

  • Can I omit THEN in a when then the clause of an insert statement multi-table?

    Example of a test of the demo:

    You have been appointed as the DBA for a National Bank that provides services of credit and debit cards to its customers. The records for these two types of card users are stored and preserved in the card_customers of Bank data table.

    You decide to create separate tables for credit card users and users of debit cards and then use the data in the card_customers table to populate the new tables. Information for clients who hold both types of card must be added to the time of the tables.

    Which of the two following options provide the most effective way of inserting the customer data in the credit_card_holders and debit_card_holders tables? (Choose two.)

    Explanation:

    In this scenario, the following statement provides the most effective way of inserting data in the credit_card_holders and debit_card_holders tables:

    INSERT ALL
    When card_type = 'Crédit' THEN credit_card_holders
    When card_type = 'Throughput' THEN debit_card_holders
    SELECT * FROM card_customers;

    Le INSERT all THE statement verifies the conditions in the two clauses WHEN , regardless whether one of them is true or false. If a condition when is true, then the line corresponding to the INSERT statement is executed is inserted in the card_customers in the credit_card_holders table or the debit_card_holders table. If a customer has a credit card and a debit card, there will be two rows in the table card_customers for the same customer, one with card_type = 'Crédit' and the other with card_type = 'Throughput'. This statement inserts the correct lines in the tables in a single pass.


    The TIME is here (in bold) are not present in answer C.


    basic question: can I omit the keyword THEN in a moment, then clause?

    What happened when you tried the failure THEN?

    Do not be afraid to break the Oracle by actually TRYING things.

    The best and fastest, to learn is to try things yourself.

    Then, see the documentation for the basic issues.

    http://docs.Oracle.com/CD/B28359_01/server.111/b28286/statements_9014.htm

    View the diagram of syntax for the 'conditional_insert_clause' and you will see that the word is necessary.

  • My cursor locks the table inserts

    I have a function that copies of the new lines of Database_A, Table_A to Database_B, Table_A via a database link. This happens on a regular basis and there may be around 100 k new records accumulated between these periods.

    I understand the folders that need to be copied by filtering a field "copied" on the table. In the loop, I update field copied from the line so it will not be copied during the next pass. Here's the function:
    FUNCTION copy_records RETURN INTEGER IS
    
         pCount INTEGER := 0;        
            CURSOR recs IS
                SELECT * FROM TABLE_A
                WHERE FLG_COPIED = 'N' OR FLG_COPIED IS NULL
                ORDER BY MYKEY;    -- do the oldest first (only important if we commit during iterations)              
        BEGIN
    
            pCount := 0;
        
            FOR rec IN recs LOOP
            
                -- first copy to backup db
                INSERT INTO TABLE_A@BACKUP_DB
                    (FIELD_1, FIELD_2, FIELD_3)
                VALUES 
                    (rec.FIELD_1, rec.FIELD_2, rec.FIELD_3);
            
                -- now flag as copied
                UPDATE TABLE_A
                SET FLG_COPIED = 'Y'
                WHERE MYKEY = rec.MYKEY;
                            
                -- counter sent back for logging
                pCount := pCount + 1;               
                
            END LOOP;
            
            RETURN pCount;
            
        EXCEPTION
            WHEN OTHERS THEN
                RETURN SQLCODE;
        END;
    END;
    My problem is that it is stuck on the table, while this process takes place. I'd wait a few blocking at the level of the lines, which is fine (this painting is especially INSERT only). But I do not know why it blocks such that she allow me to INSERT into the table. -This can someone explain that to me?

    If I do a VALIDATION during each iteration, I can at least perform an insert, but this seems to slow things down significantly when used through a DBLink, so I'd avoid it (more I want to run a transaction all or nothing). I'm not as sure as if the effect of the VALIDATION must achieve the online-only block, or simply reduce the window of the table locking.

    Published by: xaeryan on October 14, 2011 15:51

    xaeryan wrote:

    mtefft wrote:
    1. it is a bad programming practice to perform updates (or inserts, etc.) in a function. You must use a procedure.

    More tests to make sure that, but it appears after a PROCEDURE and nothing more, changed my blocking condition no longer exists...

    This would make sense?

    That makes no sense to me. There is no fundamental difference between a procedure and a function with regard to the processing of SQL statements mode. My guess is that your problem is:

    There is also a BITMAP index on the field FLG_COPIED

    Bitmap index and updated several unique, as you do not play well together. A single block in a bitmap index can cover a very large number of rows in the table. In addition, the index bitmap, in contrast to the B-tree index, index null values. Every time you update a row in tablea, Oracle must briefly lock two index blocks. One on the value null/N in line and the other covering the value Y of the line. This would tend to block other transactions that want to access all the lines to cover (or potentially covered) of the index blocks.

    John

  • It will make any sense to create a view, materialized on the top one cube MOLAP?

    Hello
    We have developed a few MOLAP cubes for our environment considered.
    Now, we plan to create materialized with rewrite motion activated to speed up performance?
    Is this a good approach? It will make any sense? I want to say I get a performance improvement if I create MV at the top of a MOLAP cube?

    Thank you and best regards,
    Douglas

    Adding a MV rewrite does not alter the raw performance of a cube. The only reason to add - it is if you want to write your SQL queries against relational base tables and the database have rewrite your queries on the cube. If you are able to query the views of cube directly, so there is no particular advantage to a rewrite MV.

    Adding a refresh only MV has benefits even if your queries using views of cube. A refresh only MV following the lapse of the cube and allows you to run updates of 'fast', which can be useful if you are only changing a handful of lines in your fact table.

  • How to cancel the last update, it works better and makes more sense!

    before I upgraded to the nxt version, everything was more easy to use and MAKES MORE SENSE

    • Click Start
    • Click on Control Panel
    • Click on uninstall a program
    • Click Mozilla Firefox in the list
    • Click on the button uninstall
    • Make sure that you do not remove personal settings etc.
    • Install version 28.

    That's how I did it.

    HTH
    Jottum

  • Skype throws me when reply or call! Message makes no sense!

    When I'm trying to answer a Skype call or make a call on Skype I threw off Skype!  and told me to install the latest version of Skype... When I do this I tells me I already have the latest version and asks if I want to install an older version!  The messages make no sense!  How can I get it working again!  Gabrielle J

    It may be better for you, if you ask the experts of Skype in their own forums:

    Skype Support Forum
    http://Forum.Voxilla.com/Skype-support-forum/

    http://community.Skype.com/T5/English/CT-p/English?profile.language=en&ShowForum=5

  • Try to check the drivers after a month of simultaneous BSOD gave rise to a HUGE DMP, that makes no sense

    Related to: pilot - hunt down a bad driver to behave.

    Good evening to all!

    I tried to check the drivers on my PC after a large number of BSOD and my use of pilot check utility resulted in a HUGE file that makes no sense (to me anyway).

    Can someone help me out? Does make sense to anyone?

    Here is the file

    https://onedrive.live.com/redir?RESID=8d3f436a45192b45! 126 & authkey =! APJUkELvmCuxVPI & ithint = the file % 2cDMP

    IF

    This full dmp has no active auditor.  What were the results when you typed check/query?

    You should configure you computer for a small image, as described in this wiki


    Please follow our instructions to find and download the files, we need to help you fix your computer. They can be found at here

    If you have any questions regarding the procedure, please ask

    This phenomenon was linked to the corruption of memory and circumstantial evidence that the culprit was Malwarebytes.

    I activate the Auditor, remove the MMFA and use MSE in place at least for test

    http://www.Microsoft.com/security_essentials/

    I would also like to run a file system check

    Please run a check of system files (SFC) & DISM if you're on win 8 or higher 


    All instructions are in our Wiki article below...
    If you have any questions please ask us for .


  • AGAIN starts after only one physical disk has several partitions makes no sense to the production oracle database?

    Dear Experts,

    Don't + REDO1 diskgroup have only one physical disk has several partitions makes no sense to the production oracle database?

    For example

    • + Diskgroup Redo1 have 2 50 GB disks (fact these 2 discs are the same physical disk partitions OR these should be separate disk as recommended approach)?
    • + Diskgroup Redo1 have 2 drives of capacity 50 GB (for RAID 1 + 0)
    • + Diskgroup Redo2 have 2 50 GB disks
    • + Diskgroup Redo2 have 2 drives of capacity 50 GB (for RAID 1 + 0 )

    Thank you and best regards,

    IVW

    Hello

    Partitioning your disks for ASM configuration as 'A' might make sense. If you lose one disk, you have the discs to another.

    'B' totally make sense if you have lost the disc that you have lost all group ASM and you need to change this with something like 'C '.

    But obviously you need redundancy ASM configured appropriately.

    Kind regards

    Juan M

  • By default the command of a table / inserted record seems to be at the forefront

    I'm ready to be confused with the result of the insert function and order 'default' a table while I practice with the employee, EMP table

    After inserting a new row in the EMP table, I tried to show the result with SELECT * FROM EMP and found that the last record inserted appeared on the first line of the table.

    SQL > INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ('& EMPNO ',' & ENAME', ' & JOB ");

    Enter the value for empno: 1234

    Enter the value of ename: JIMMY

    Enter the value of job: MANAGER

    old 1: INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ('& EMPNO ',' & ENAME', ' & JOB ")

    new 1: INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ("1234", "JIMMY", "MANAGER")

    SQL > SELECT * FROM EMP;

    EMPNO, ENAME, JOB HIREDATE DEPTNO COMM SAL MGR

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

    1234 JIMMY MANAGER

    7369 SMITH CLERK 7902 17/12/1980 800 20

    7499 ALLEN SALESMAN 7698 20/02/1981 1600 300 30

    7521 WARD SALESMAN 7698 22/02/1981 1250 500 30

    7566 JONES MANAGER 02/04/1981 7839, 2975 20

    7654 MARTIN SALESMAN 7698 28/09/1981 1250 1400 30

    7698 BLAKE MANAGER 01/05/1981 7839, 2850 30

    7782 CLARK MANAGER 7839 09/06/1981 2450 10

    7788, SCOTT, ANALYST, 7566 04/19/1987 3000 20

    PRESIDENT OF KING 7839 17/11/1981 5000 10

    7844 TURNER SALESMAN 7698 08/09/1981 1500 0 30

    7876 ADAMS CLERK 7788 OF 23/05/1987, 1100 20

    7900 JAMES CLERK 7698 03/12/1981 950 30

    7902 FORD ANALYST 7566 03/12/1981 3000 20

    7934 MILLER CLERK 1300 7782 10 23/01/1982

    15 selected lines.

    Should not go to the bottom of the table since it was introduced last?

    I noticed that it was posted in the first place, because I gave the employee number is the smallest; also the empno. is the first column of the table, that it has something to do with the order?

    I does not have an ORDER BY clause when I typed in the statements.

    Is the table always controlled by the first column, by "default"?

    Also: command - line by default, you place your order for a query select in oracle - Stack Overflow

    What I found from this link: «...» "For obvious reasons, if you create a new table, inserting some rows and do a" select * "without the"where"clause, it returns the rows in the order they have been inserted." "

    This is my first post here, the result is displayed in the console can be a bit messy... as if the question is too easy or something, my apologies, I started to learn.

    Thank you!

    Hello

    As Solomon said, there is no default order for the rows of a table.

    If

    -the lines have been inserted in order by empno, and

    -the table is very small, and

    -lines don't have never updated or deleted, and

    -you select all rows in the table, and

    -you do not use the analytical functions, and

    -you do not use CONNECT BY, GROUP BY, or certain other clauses

    then exit may still be in order by empno, depending on your version and platform, but you can't count on it.  Oracle emphatically does not order for the lines as they are stored in a table, or the way in which they appear in the output when you do not use an ORDER BY clause.

Maybe you are looking for

  • When can I update my iPad iOS 10 mini

    I am able to update my iPad mini iOS 10 yet? Any body knows please. When I check on Apple's site it says that I can, but when I try to update says its ios updated showing 9.

  • RN104 wont shutdown

    NAS custom stop-by-stop to manual stop or the admin button page walking / stop on the device several times. Device shutsdown but then automatically restarts

  • How to display the parameters of the control units

    Hello I have a simple request, associated with display units in controls. The procedure is a right-click on the control > select the display format > advanced editing mode. Because a field called string format, I give here the units related to the pa

  • What is the advantage of adding the AC adapter / CC for pixma mg5620? Thank you.

    What is the advantage to connect an AC adapter to a pninter of mg5620 of pima? taper21.

  • still unable to open programs...

    ran the scan to microsoft computer; always impossible to open other programs malware or anything else at all. always get the "which program you want to open it with" for my browser (which, fortunately, I can open it) and "this application is not foun