with the clause against table inline

Similar Questions

• WITH the clause as inline view

  I m using oracle DB 11.2.0.2.0
  I have a question about usage WITH the clause which made a temporary transformation (Materializing) automatically.
  I want the query to operate as a point of view WITH clause online because the transactions table materailizing would kill performance.
  I m able to see the transformation of the temporary table in the explain output plan.
  Have we not all suspicion to stop the transformation of Temp table?
  
  Here is an example of the sample
  I have the query union multi (2 requests), couple of table is common to all the union queries. the request should not be materialized. It must operate as a point of view common inline.
  
  WITH ORDERS AS
  (SELECT h.order_number,
  l.line_number,
  l.line_id
  order_headers h, order_lines l)
  SELECT...
  COMMANDS, X, Y
  WHERE THE...
  UNION ALL
  SELECT...
  ORDERS, A, B, C
  WHERE THE...

  Try this...

  WITH ORDERS AS
  (SELECT /*+ inline */ h.order_number,
  l.line_number,
  l.line_id
  from order_headers h, order_lines l)
  ...
  

  To achieve the opposite effect, you can use SELECT / * + materialize * /.

  However, keep in mind that these tips are undocumented, so use them at your own risk. If you think that Oracle is to choose a bad execution plan, you must sign a deal with Oracle Support to see if this is a bug.

  Kind regards
  Bob

• Can we use type multiset and with the clause the two

  Please let me know how to use the multiset type and with the clause.

  You need more inlining, as for example in:

  SQL> select *
  from table (cast (multiset (select *
                              from (with t as (select deptno from dept)
                                    select * from t)) as sys.dbms_debug_vc2coll))
  /
  COLUMN_VALUE
  ----------------------------------------
  10
  20
  30
  40
  50                                      
  
  5 rows selected.
  

• With the clause of DML (DEC/insert/insert-all)

  Hello
  
  
  I have tables t1, t2, t3, t4
  
  with w
  (
  Select t1.* from t1, t2
  where t1.c1 = t2.c1
  and t1.c2 = t2.c2
  )
  
  
  I need to create or insert data in new tables n1 and n2
  Like this..
  
  Insert into n1
  Select * from w, t3
  where w.c1 = t3.c1
  
  Insert into n2
  Select * from w, t4
  where w.c2 = t4.c2
  ----
  
  I will make references the object 'w' several times.
  My concern is because the inserts above are run independently in the same session, the oracle executes the
  with the clause for each reference or runs one time?
  
  Essentially of iam looking for an insert-all statement
  where it inserts data into multiple tables from target
  something like that...
  
  
  Insert into n1
  When
  Select * from w, t3
  where w.c1 = t3.c1
  Insert into n2
  When
  Select * from w, t4
  where w.c1 = t4.c1
  with w
  (
  Select t1.* from t1, t2
  where t1.c1 = t2.c1
  and t1.c2 = t2.c2
  )
  
  ----
  Usually, I'm doing my basic work before posting on oracle forums, currently iam unable to connect to one
  Oracle sessions. Can someone help me?
  
  
  Thanks in advance.

  If your application will have the same number and type of columns, then you can do something like that.

  SQL> create table t1
    2  as
    3  select level no, 'karthick' name
    4    from dual
    5  connect by level <= 5
    6  /
  
  Table created.
  
  SQL> create table t2
    2  as
    3  select no, 'vimal' name
    4    from t1
    5  /
  
  Table created.
  
  SQL> create table t3
    2  as
    3  select no, 'vijay' name
    4    from t1
    5  /
  
  Table created.
  
  SQL> create table t4
    2  as
    3  select no, 'subha' name
    4    from t1
    5  /
  
  Table created.
  
  SQL> create table n1
    2  as
    3  select * from t1 where 1=2
    4  /
  
  Table created.
  
  SQL> create table n2
    2  as
    3  select * from t1 where 1=2
    4  /
  
  Table created.
  
  SQL> insert when view_name = 'v1' then
    2             into n1 values (no, name)
    3         when view_name = 'v2' then
    4                     into n2 values (no, name)
    5  with v
    6  as
    7  (
    8     select t1.*
    9       from t1, t2
   10      where t1.no = t2.no
   11  ),
   12  v1
   13  as
   14  (  select t3.*, 'v1' view_name
   15       from v, t3
   16      where v.no = t3.no
   17  ),
   18  v2
   19  as
   20  (  select t4.*, 'v2' view_name
   21       from v, t4
   22      where v.no = t4.no
   23  )
   24  select * from v1
   25  union all
   26  select * from v2
   27  /
  
  10 rows created.
  
  SQL> select * from n1
    2  /
  
          NO NAME
  ---------- --------
           1 vijay
           2 vijay
           3 vijay
           4 vijay
           5 vijay
  
  SQL> select * from n2
    2  /
  
          NO NAME
  ---------- --------
           1 subha
           2 subha
           3 subha
           4 subha
           5 subha
  

• WITH THE CLAUSE DOES NOT WORK

  Hello everyone,
  I have the suite Oracle version:
  
  SQL & gt; selection of version of $ v; *
  
  BANNER
  ----------------------------------------------------------------
  Oracle9i Enterprise Edition Release 9.2.0.8.0 - 64 bit Production
  PL/SQL Release 9.2.0.8.0 - Production
  CORE Production 9.2.0.8.0
  AMT for Solaris: 9.2.0.8.0 - Production Version
  NLSRTL Version 9.2.0.8.0 - Production
  
  But when I try to run a query with * 'with the clause"* it gives following error:
  
  SQL & gt; with sam as (select from asap.triangular_reco_aug) *.
  SP2-0734: beginning of unknown command «with sam a...» "- rest of line is ignored.
  SQL & gt;
  
  Could someone please why this is happening?

  What is your version of SQL * more? If you are using a version earlier than 9.2 then it is probably intercept the syntax error before it happens even to the database that supports.

• Get ORA-00942 error with the clause, but not when the user sys.

  Hello

  About 3 weeks ago we increased our memary to PGA_aggregate_target = 60 GB, SGA_target = 58 GB Oracle instance. About 1 week ago our cognos user started having errors ORA-00942 for these queries generated with clause, with the same authorization. i.e.

  with 'aBmtQuerySubject4' as
  (select "BANK_NOTE_ADI_INFO_T". ' ' PRINT_BATCH_ID ' 'PRINT_BATCH_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' PROCESS_RUN_DT ' 'PROCESS_RUN_DT '.
  'BANK_NOTE_ADI_INFO_T '. ' ' RDP_ID ' 'RDP_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' FI_ID ' 'FI_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' DEPOSIT_NB ' 'DEPOSIT_NB '.
  'BANK_NOTE_ADI_INFO_T '. ' ' PROCESS_MACHINE_ID ' 'PROCESS_MACHINE_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' OUTPUT_STACKER_TYPE_CE ' 'OUTPUT_STACKER_TYPE_CE '.
  'BANK_NOTE_ADI_INFO_T '. ' ' PARTITION_KEY ' 'PARTITION_KEY '.
  'BANK_NOTE_ADI_INFO_T '. ' ' LOAD_ID ' 'LOAD_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' SERIAL_NUMBER_ID ' 'SERIAL_NUMBER_ID '.
  'BANK_NOTE_ADI_INFO_T '. ' ' SHIFT_NB ' 'SHIFT_NB '.
  'BANK_NOTE_ADI_INFO_T '. ' ' BANK_NOTE_COUNT_NB ' 'BANK_NOTE_COUNT_NB '.
  of "BOISI '." BANK_NOTE_ADI_INFO_T' 'BANK_NOTE_ADI_INFO_T '.
  )
  'CountResultQuery5' as
  (select count ("aBmtQuerySubject4". "BANK_NOTE_COUNT_NB") 'C_1' "
  , count (1) 'C_2' of 'aBmtQuerySubject4 '.
  After having count (*) > 0)
  Select 'CountResultQuery5 '. "' C_2 ' 'Count1.
  of 'CountResultQuery5 '.
  ;

  
  with 'aBmtQuerySubject4' as
  (select "BANK_NOTE_ADI_INFO_T". ' ' LOAD_ID ' 'LOAD_ID '.
  of "BOISI '." BANK_NOTE_ADI_INFO_T' 'BANK_NOTE_ADI_INFO_T '.
  )
  'CountResultQuery5' as
  (select count ("aBmtQuerySubject4". "LOAD_ID") 'C_1' "
  , count (1) 'C_2 '.
  of 'aBmtQuerySubject4' having count (*) > 0
  )
  Select 'CountResultQuery5 '. "' C_2 ' 'Count1' of 'CountResultQuery5 '.
  ;

  -output like:

  'BANK_NOTE_ADI_INFO_T '. ' ' PROCESS_RUN_DT ' 'PROCESS_RUN_DT '.
  *
  ERROR at line 3:
  ORA-00942: table or view does not exist

  
  of "BOISI '." BANK_NOTE_ADI_INFO_T' 'BANK_NOTE_ADI_INFO_T '.
  *
  ERROR at line 3:
  ORA-00942: table or view does not exist

  Since 2 days ago, we get ORA-0403.

  One thing I noticed that the coguser can run above queries correctly after they are run by a user sys...

  Could you please help me on how I can resolve ORA-00942 error?

  Thank you very much, much in advance for all your help and your advice! :-)

  Jihong.

  "One thing I've noticed the coguser can run over queries correctly after they are run by a user sys... »

  Jihong,

  Do you mean that queries can be run successfully as a sys user, or as long as once a sys cognos user user has run the query at least once?

  Gerard

• WITH THE CLAUSE

  Hi all

  I'm using oracle 11.2.0.4

  I m using this for the purpose of learning

  Below is my table and insert statement

  CREATE TABLE COMPANY (NUMBER EMPLOYEE_ID, EMPLOYEE_NAME VARCHAR2 (30), NUMBER OF MANAGER_ID)

  INSERT INTO THE COMPANY'S VALUES (1, 'FRED', ");

  SOCIETY VALUES (2, 'BARNEY', '1');

  SOCIETY VALUES (3, 'WILMA', '1');

  SOCIETY VALUES (4, 'BETTY', '3');

  INSERT IN THE VALUES(5,'PEBBLES','3') SOCIETY;

  INSERT IN THE VALUES(6,'BAM-BAM','4') SOCIETY;

  INSERT IN THE VALUES(7,'DINO','4') SOCIETY;

  INSERT IN THE VALUES(8,'HOPPY','4') SOCIETY;

  WITH RSFC(CK,PK,LVL,HIER) AS

  (SELECT EMPLOYE_ID, MANAGER_ID, 0 AS LVL, EMPLOYEE_NAME LIKE YESTERDAY)

  SOCIETY

  WHERE MANAGER_ID IS NULL

  UNION ALL

  SELECT EMPLOYE_ID, MANAGER_ID, LVL + 1, YESTERDAY. '/' || EMPLOYEE_NAME

  OF THE RSFC R INNER JOIN COMPANY F

  ON R.CK = F.MANAGER_ID

  )

  WIDTH OF SEARCH FIRST BY CK ORDR SET

  SELECT A.LVL, A.CK, A.PK, A.HIER, ORDR

  THE RSFC HAS

  ORDER BY ORDR

  0	1		FRED	1
  1	2	1	FRED/BARNEY	2
  1	3	1	FRED/WILMA	3
  2	4	3	FRED/WILMA/BETTY	4
  2	5	3	FRED/WILMA/PEBBLES	5
  3	6	4	FRED/WILMA/BETTY/BAM-BAM	6
  3	7	4	FRED, WILMA, BETTY, DINO	7
  3	8	4	FRED, WILMA, BETTY, HOPPY	8

  First part, I believe, as well, explains Frank

  hierarchical queries

  next part in bold, I need to understand

  Thanks and respect.

  Guylaine

  Hi, lyly,

  You said that you did not understand the part highlighted in your query.  It looks like the 2 lines are highlighted:

  WIDTH OF SEARCH FIRST BY CK ORDR SET

  SELECT A.LVL, A.CK, A.PK, A.HIER, ORDR

  I guess that it's a typo.  The 2nd day of these lines is just the main SELECT clause; This is the 1st line, the clause of the SEARCH, who really needs an explanation.

  As far as I know, the SEARCH clause is only for the sorting of the results.  In other words, the a WITH recursive clause results will be the same, no matter what you put in the SEARCH clause, or if you omit the clause of RESEARCH.  The only purpose of the clause of RESEARCH is to generate the column command (ORDR in your example), which reflects where each row fits in the graph defined by your recursive query.  (Maybe, if you use non-deterministic user-defined functions, it can be a difference in the results.  Chances are, you never have to worry about this).

  If you do not use a clause in RESEARCH at all, it seems like by default

  WIDTH OF SEARCH FIRST BY NULL...

  In other words, the lines appear in order by level and in no particular order after that.  In your case, that would mean 'FRED' would come first, then "BARNEY" and "WILMA" (not necessarily in that order), followed by all the children of 'BARNEY' or 'WILMA' and so on.  No column order would be generated, so you could not guarantee order in the ORDER BY clause.

  I'm not sure that there is nothing you can do with a clause of RESEARCH that you can not do without a.  In other words, the SEARCH clause automatically generates a command column.  I believe you can still create an equivalent ordering column in the recursive query itself.  In your example, you could say

  ORDER BY lvl, ck

  to get the results sorted the same way.  Sometimes, using a SEARCH clause is much more convenient, and I bet that sometimes it is therefore more effective, too.

  2937991 wrote:

  Hi all

  I'm using oracle 11.2.0.4

  I m using this for the purpose of learning

  Below is my table and insert statement

  CREATE TABLE COMPANY (NUMBER EMPLOYEE_ID, EMPLOYEE_NAME VARCHAR2 (30), NUMBER OF MANAGER_ID)

  INSERT INTO THE COMPANY'S VALUES (1, 'FRED', ");

  SOCIETY VALUES (2, 'BARNEY', '1');

  ...

  As always, thank you for posting this information: it really helps!

  Manager_id is a NUMBER, it would be better if you don't quote it.  In other words, it would be more clear, more effective and less prone to say:

  INSERT INTO COMPANY (EMPLOYE_ID, EMPLOYEE_NAME, MANAGER_ID) VALUES (1, 'FRED', NULL);

  INSERT INTO COMPANY (EMPLOYE_ID, EMPLOYEE_NAME, MANAGER_ID) VALUES (2, 'BARNEY', 1);

  ...

  In this example, the unnecessary quotation marks do not hurt a lot, but they do not help all.

• WITH the clause can be used with an insert statement?

  Hello
  
  Can I use a SQL with a clause of an insert
  
  Something like
  

  create table tem (l number)
  
  insert into tem
  (l)
  (with 
    t0  as 
    (Select exp_amt as t0 from exp_main)
  select t0 from t0)

  The declaration itself works fine, but it throws the following error with insert
  

  Error at Command Line:8 Column:17
  Error report:
  SQL Error: ORA-32034: unsupported use of WITH clause
  32034. 00000 -  "unsupported use of WITH clause"
  *Cause:    Inproper use of WITH clause because one of the following two reasons
             1. nesting of WITH clause within WITH clause not supported yet
             2. For a set query, WITH clause can't be specified for a branch.
             3. WITH clause can't sepecified within parentheses.
  *Action:   correct query and retry

  The reason why I use this format is because we strive to produce sqls to Analytics and queries are generally formed like this. So instead of change requests in bulk, I was hoping that we were able to insert it.
  
  Please notify
  
  Thank you
  Sun
  
  Published by: ryansun on August 14, 2012 01:59

  >
  create table tem (general number);
  table created TEM.

  insert into tem (l)
  with t0
  as
  (Select 1 as double t0)
  Select t0 t0;

  1 inserted rows.

• Using 'STORAGE of REUSE' with the command 'TRUNCATE TABLE '.

  Because ' truncate table... reuse storage "speed up the tronquantes process?
  
  Sometimes statements truncation takes about 30 minutes and other times just a few minutes.
  
  What are the backs of uinsg print 'reuse storage?

  The RE-USE of STORAGE clause is used to prevent the allocated storage of back to the pool.
  Consider this scenario for a typical daily load of an intermediate table

  1. Empty the table of yesterday's data - TRUNCATE it
  2. Load the table with today's data - INSERT 
  

  If you load a large number of records it takes time for Oracle to allocate storage for records
  When you use Oracle TRUNCATED must return the storage allocated to the pool.
  Then when you INSERT new records, that oracle has to allocate the space that he could have used, but returned to the pool.

  If you use TRUNCATE... RE-USE of STORAGE Oracle truncates the table but keep the storage and it will reuse the same storage
  When you do the INSERT instead of having to take the time to allocate new storage.

  So, there are two options to speed up ETL processes like that.
  1. use TRUNCATED... RE-USE of STORAGE and a standard INSERT query

  2. use TRUNCATE and INSERT / * + APPEND * / and make the table NOLOGGING to INSERT it. This will make a big
  load. Oracle must allocate space, but the load mass will make them more effective than a standard INSERT.

  -editing to update after reading the reference asktom
  Storage of back to the pool takes time, so REUSE STORAGE of coding may be faster. The real advantage comes with the next load of data, however if you use a standard INSERT (and not in BULK or direct load) because Oracle failed to reallocate storage.

  If RE-USE eliminates the return of storage to the pool, as well as the allocation of the new storage for the next INSERTION.

  Published by: rp0428 on February 20, 2012 11:16

• How to use an index with the clause 'in '.

  Hi all
  
  I have a sql statement with "" * in the clause * "."
  
  for example:
  

  select emp_id from emp where ename in ("vikas", "krishna", "John", "scott");

  When I check the plan explain he uses the index here even if the statistics was entered. He always goes for the full table scan.
  There is an index created for the ename column.
  
  Please tell me a technique on how to make use of the index here.
  
  
  Thank you and best regards,
  Vikas Krishna

  Vikas,

  What version of Oracle you are running.
  CLAUSE IN will use the index as appropriate.
  In your example Optimizer may decide to use FTS (Full Tablle Scan) for various reasons. May be that the table is very small.
  SE for example below where he uses an index on the CLAUSE IN...
  The essential point being that I made "wide enough" table (in this case including a column of type CHAR) makes use of INDEX more effective than a FTS.

  select * from v$version where rownum < 2;
  Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
  
  create table bigt (c int, s char(100));
  
  insert into bigt select level, 'X' from dual connect by level < 501;
  
  create index bigt_in1 on bigt (c );
  
  exec dbms_stats.GATHER_TABLE_STATS('SUDHAKAR', 'BIGT');
  
  explain plan for select c,s from bigt
  where c in (1,2,3,43,5);
  
  select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  
  Plan hash value: 238667275
  
  -----------------------------------------------------------------------------------------
  | Id  | Operation                    | Name     | Rows  | Bytes | Cost (%CPU)| Time     |
  -----------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT             |          |     5 |   520 |     3   (0)| 00:00:01 |
  |   1 |  INLIST ITERATOR             |          |       |       |            |          |
  |   2 |   TABLE ACCESS BY INDEX ROWID| BIGT     |     5 |   520 |     3   (0)| 00:00:01 |
  |*  3 |    INDEX RANGE SCAN          | BIGT_IN1 |     5 |       |     2   (0)| 00:00:01 |
  -----------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     3 - access("C"=1 OR "C"=2 OR "C"=3 OR "C"=5 OR "C"=43)
  

  VR,
  Sudhakar B.

• Help with the clause of "default".

  Hi all
  
  I have a scenario where there is a table with 75 columns. out of the 75 columns, 30 are varchar and 30 are digital. The remaining columns are other types of data when creating the table, that I forgot to mention the default values to varchar and numeric columns.
  
  Now, approximately 20,000 records are inserted into the table where some records contain NULL varchar and numeric. Now, I want to replace the null with varchar values and digital default values respectively.
  
  I can change the columns by adding the clause by default now and update the lines of NULL for the default values accordingly. But this process could be very heavy.
  
  Is there a better way to do this. Please help me.
  
  Thanks in advance,
  Rambeau

  I want to know that is it possible to set the default values for all columns of type varchar, both using a single SQL statement. Then you can update all the values NULL with default values.

  You are looking for something like this?

  SQL> create table t (empno default 1, ename default 'x') as select cast(null as integer) empno, cast(null as varchar2(10)) ename  from emp where rownum <= 4
  /
  Table created.
  
  SQL> select * from  t
  /
       EMPNO ENAME
  ---------- ----------
  
  4 rows selected.
  
  SQL> update t set empno = default, ename=default
  /
  4 rows updated.
  
  SQL> select * from  t
  /
       EMPNO ENAME
  ---------- ----------
           1 x
           1 x
           1 x
           1 x         
  
  4 rows selected.
  

• Insertusing with the clause?

  Hello
  Is it possible to write an insert statement by using a query that has a clause?

   WITH my_list AS
           (
  some stuff (id's)
           )
          SELECT col1... etc...
          FROM  table1, table2....        
          WHERE ...
             and EXISTS (SELECT 1
                       FROM my_list l
                      WHERE table1.id = l.id)

  Can I use the statement above to insert these columns in a table?

  Yes, you can use it WITH:

  SQL> create table emp1 as select ename from emp where 1=2
    2  /
  
  Table created.
  
  SQL> insert into emp1
    2  with t as (select ename from emp where deptno = 10)
    3  select * from t
    4  /
  
  3 rows created.
  
  SQL> select * from emp1
    2  /
  
  ENAME
  ----------
  CLARK
  KING
  MILLER
  
  SQL> 
  

  SY.

• Help with the cluster in table for the cluster size difference, please!

  I will admit to still hurt with the berries of LabVIEW, and as usual, the behavior in the vi attached is meaningless to me!  The attached vi shows a cluster 6 element being converted into a table, then immediately to a cluster.  The reconstructed cluster has 9 elements, even if the table size indicator display properly 6.  How to maintain the initial cluster size when converting to and then since then, a table?

  The f

  Well, if you have worked with context-sensitive help running you would see:

  "With the right button of the function and select the Size of Cluster in the context menu to set the number of items in the cluster."

  The default is new. The maximum cluster size for this function is 256. »

  You must set the size. There is no way for the function to know how many elements in the table.

• Helps with the update of Table

  Hi, I have a table created in book of recent years:

  

  I would like to 'try' and just update with the new Word.docx

  

  Is it EASY without complication or should I try and rebuild the table from scratch in Id?

  HOW THEN I update THE TABLE to ID card?

  Simply:

  (1) (copy the text of the .doc

  (2) select the text in the table Id, delete, paste

  This seems to have worked...

• with the Clause in a function

  Hi all
  
  I use oracle 10 g 2.
  
  I have a sql query that begins with a "WITH Clause"... Can of use this directly in a function?
  
  I tried copy paste in the new feature after the BEGIN... but it errors saying CLAUSE provided for in select... when I try including IN the clause... it gives different error...
  
  Enjoy your sugessions
  
  Thanks in advance
  H

  You can, perhaps you could post your code so we can take a look?

  See you soon

  Ben