Commit a single table

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• single table hash clusters

  I created a hash cluster single table like this:
  
  create tablespace mssm datafile 'c:\app\mssm01.dbf' size 100 m
  Segment space management manual;
  
  
  create the cluster hash_cluster_4k
  (id number (2))
  size 8192 single hash table is id hashkeys 4 tablespace mssm;
  
  --Also created a table cluster with the line size such as single record corresponds to a block and inserted 5 records each with a separate key value
  
  
  CREATE TABLE hash_cluster_tab_8k
  (number (2) id,)
  txt1 tank (2000).
  txt2 tank (2000).
  tank (2000) txt3
  )
  CLUSTER hash_cluster_8k (id);
  
  
  Begin
  because loop me in 1.5
  Insert in the values of hash_cluster_tab_8k (i, 'x', 'x', 'x');
  end loop;
  end;
  /
  exec dbms_stats.gather_table_stats (WATERFALL of the USER 'HASH_CLUSTER_TAB_8K' = > true);
  
  
  Now, if I try to access the folder with id = 1 - it shows 2 I / O (cr = 2) instead of the single e/s as provided in a hash cluster.
  
  
  
  Rows Row Source operation
  ------- ---------------------------------------------------
  1 ACCESS HASH_CLUSTER_TAB_8K HASH TABLE (cr = 2 pr = 0 pw = time 0 = 0 US)
  
  
  If I run the query, even after the creation of a unique index on hash_cluster_tab (id), the execution plan specifies access hash and single e/s (cr = 1).
  
  This means that for a single e/s in a single table hash cluster, we create a unique index? It will not create an additional burden to maintain an index?
  
  What is the second I/o necessary for in the case where a unique index is absent?
  
  I would be very grateful if gurus could explain this behavior.
  
  Thanks in advance...

  user12288492 wrote:
  I ran the query with all 5 id values and the results have been more confusing.

  During the first inning, I had VC = 2 for two values of keys, the Czech Republic rest = 1
  During the second inning, I = 2 for a key value, the Czech Republic cr rest = 1
  In the third set, I had VC = 1 for all values of keys

  The effects vary depending on the number of previous runs and the number of times you reconnect.
  The extra CR is a cleansing of the block effect. If you check the access of the buffer (events 10200-10203), then you can see the details. Simplistically, if you create your data, then connect and interrogate one of the lines (but not id = 5, because that will be cleaned on the collection of statistics) you should be able to see the following numbers:

  cleanouts only - consistent read gets                                        1
  immediate (CR) block cleanout applications                                   1
  commit txn count during cleanout                                             1
  cleanout - number of ktugct calls                                            1
  Commit SCN cached                                                            1
  redo entries                                                                 1
  redo size                                                                   80
  

  On the first block visited, Oracle made a visit to buffer to untangle a YVERT cleaning (ktugct - get the commit time). This cleans up the block and caches the acquired RCS. The rest of the blocks that visit you in the same session should not be cleaned because the session can use the updated SNA caching to avoid needing a cleanup operation. Finally all the blocks will have been cleaned up (which means that they will be written to the disk) and the extra CR stops happening.

  There is a little quirk - drain plug seems to apply to the format block calls - and I do not understand why this was did not each row inserted thereafter.

  Concerning
  Jonathan Lewis

• Dreamweaver several graphs in single table cell

  Dreamweaver is having problems when I try to combine multiple charts in a single table cell. Some are separated by two end just "" entries, while others do not accept these separators. Pleas you show me the right way to handle this.

  Jack,

  • Tables should not be used for web page layouts.
  • Tables for tabular data such as spreadsheets and graphics only.
  • Today, we use an external CSS file for the layout, typography and other styles.

  Please show us what you are trying to do by copying and sticky code in a reply from the web forum.

  Nancy O.

• How to restore a single table from a DP Export to a different pattern?

  Environment:
  
  Oracle 11.2.0.3 EE on Solaris
  
  I was looking at documentation when importing DP trying to find the correct syntax to import a single table of an RFP to a different schema export.
  
  So I want to load the table User1. Table1 in USER2. Table1 a DP Export.
  
  Looking at the REMAP_TABLE options:

  REMAP_TABLE=[schema.]old_tablename[.partition]:new_tablename
  
  OR
  
  REMAP_TABLE=[schema.]old_tablename[:partition]:new_tablename

  I can't see where to specify the name of the target schema. Examples were the new table name residing in the same pattern with just a new name.
  
  I looked at the REMAP_SCHEMA but the docs say matter the entire schema in the new schema and I want only one 1 table.
  
  All suggestions are welcome!
  
  -gary

  I thought I tried this combination and it seemed to me that the REMAP_SCHEMA somehow too rolled TABLES = parameter > and started to load all the objects.

  If it does not fail (and it shouldn't) then please post details here and I'll see what happens.

  Let me back in the tray to sand and try again. I admit I was a bit of a rush when I did the first time.

  We are all in a hurry, no worries. If it fails, please post the details and the log file.

  Does make any sense that a parameter would be substitute another?

  No, this should never happen. We have tons of audits to ensure that labour cannot have several meanings. For example, you can not say

  Full schemas = y = foo - what you want, or a full export list export schema, etc.

  Your suggestion was the first thing that I thought would work.

  It should work. If this isn't the case, send the log with the command and the results file.

  Dean
  Thanks again for the help and stay tuned for my new attempt.

  -gary

• multiple to single table replication

  Hello
  
  Is there a way we can replicate multiple tables at source on a single table to the target.
  
  example: join table A and B on the source and put it in the table C.
  
  Thank you!

  Yes it is possible. OGG can be used to get the data from the tables of the source and go in a single target table. But keep in mind if you are data fusion then PK conflict should be avoided otherwise, you can get any data problems.

  -Koko

• Repetition of groups nested in a single table - model RTF

  Hi all
  
  I have a little problem with RTF models. I try to use 2 recurring groups within a single table, but everything I'm not get data for the fields of the outer loop, or still getting only one record of the loop internal.
  
  It is a model of report of cash requirements. My expandable outside group is G_VENDOR and internal is G_INVOICE. I'm at the stage where I pasted the table with the G_INVOICE details in another table (with the NAME of the SELLER in the first field). This has however a drawback - it is not to repeat the name of the seller if there is more than one G_INVOICE in G_VENDOR. I don't want tables repeated for each provider, one with all the data.
  
  I had SR Oracle open, but they seem not to be very useful, makes me think it is a bug and not fixed will never be. I know that the XML flatenning would be an option, but I don't want be to redevelop all alone I need template for reports.
  
  Someone has an idea?
  
  Concerning
  Piotr

  Hi Piotr,

  Ideally you would be that flatten, but if you are inside the loop of invoice you can still access the fields of the outer loop by changing the form field and by prefixing with... /.

  for example becomes

  Kind regards

  Robert

• How to combine the large number of tables of pair key / value in a single table?

  I have a pair key / value tables of 250 + with the following features
  
  (1) keys are unique within a table but may or may not be unique in the set of tables
  (2) each table has about 2 million lines
  
  What is the best way to create a single table with all unique key-values of all these paintings? The following two queries work up to about 150 + tables
  

  with
    t1 as ( select 1 as key, 'a1' as val from dual union all
            select 2 as key, 'a1' as val from dual union all
            select 3 as key, 'a2' as val from dual )
  , t2 as ( select 2 as key, 'b1' as val from dual union all
            select 3 as key, 'b2' as val from dual union all
            select 4 as key, 'b3' as val from dual )
  , t3 as ( select 1 as key, 'c1' as val from dual union all
            select 3 as key, 'c1' as val from dual union all
            select 5 as key, 'c2' as val from dual )
  select coalesce(t1.key, t2.key, t3.key) as key
  ,      max(t1.val) as val1
  ,      max(t2.val) as val2
  ,      max(t3.val) as val3
  from t1
  full join t2 on ( t1.key = t2.key )
  full join t3 on ( t2.key = t3.key )
  group by coalesce(t1.key, t2.key, t3.key)
  /
  
  with
    master as ( select rownum as key from dual connect by level <= 5 )
  , t1 as ( select 1 as key, 'a1' as val from dual union all
            select 2 as key, 'a1' as val from dual union all
            select 3 as key, 'a2' as val from dual )
  , t2 as ( select 2 as key, 'b1' as val from dual union all
            select 3 as key, 'b2' as val from dual union all
            select 4 as key, 'b3' as val from dual )
  , t3 as ( select 1 as key, 'c1' as val from dual union all
            select 3 as key, 'c1' as val from dual union all
            select 5 as key, 'c2' as val from dual )
  select m.key as key
  ,      t1.val as val1
  ,      t2.val as val2
  ,      t3.val as val3
  from master m
  left join t1 on ( t1.key = m.key )
  left join t2 on ( t2.key = m.key )
  left join t3 on ( t3.key = m.key )
  /

  A couple of questions, then a possible solution.

  Why the hell you have 250 + tables pair key / value?

  Why the hell you want to group them in a table containing one row per key?

  You could do a pivot of all the tables, not part. something like:

  with
    t1 as ( select 1 as key, 'a1' as val from dual union all
            select 2 as key, 'a1' as val from dual union all
            select 3 as key, 'a2' as val from dual )
  , t2 as ( select 2 as key, 'b1' as val from dual union all
            select 3 as key, 'b2' as val from dual union all
            select 4 as key, 'b3' as val from dual )
  , t3 as ( select 1 as key, 'c1' as val from dual union all
            select 3 as key, 'c1' as val from dual union all
            select 5 as key, 'c2' as val from dual )
  select key, max(t1val), max(t2val), max(t3val)
  FROM (select key, val t1val, null t2val, null t3val
        from t1
        union all
        select key, null, val, null
        from t2
        union all
        select key, null, null, val
        from t3)
  group by key
  

  If you can do it in a single query, Union all 250 + tables, you don't need to worry about chaining or migration. It may be necessary to do this in a few passes, depending on the resources available on your server. If so, I would be inclined to first create the table, with a larger than normal free percent, making the first game as a right inset and other pass or past as a merger.

  Another solution might be to use the approach above, but limit the range of keys with each pass. So pass we would have a like predicate when the key between 1 and 10 in every branch of the union, pass 2 would have key between 11 and 20, etc. In this way, everything would be straight inserts.

  That said, I'm going back to my second question above, why the hell you want or need to do that? What is the company you want to solve. There could be a much better way to meet the requirement.

  John

• Fusion of single table

  Hi all
  
  I am using the command merge onto a single table. I want to check some values in the table, if they already exist I just update, thing that I want to insert.
  
  For this I use the following code:
  
  
  
  MERGE INTO my_table OLD_VAL
  NEW_VAL in ASSISTANCE from (SELECT L_field1, L_field2, L_field3, DOUBLE L_field4)
  WE (OLD_VAL.field1 = NEW_VAL. L_field1
  AND OLD_VAL.field2 = NEW_VAL. L_field2
  AND OLD_VAL.field3 = NEW_VAL. L_field3
  )
  WHEN MATCHED THEN
  UPDATE SET OLD_VAL.field4 = NEW_VAL. L_field4
  WHEN NOT MATCHED THEN
  INSERT (Field1, Field2, field3, field4, sphere5)
  VALUES (NEW_VAL. L_field1, NEW_VAL. L_field2, NEW_VAL. L_field3, NEW_VAL. L_field4, SYSDATE);
  
  Fields starting with L_ here is my local variables inside my procedure.
  
  It is giving error as ORA-00904: "NEW_VAL. "" L_field3 ": invalid identifier
  
  Thank you all.

  SELECT L_field1, L_field2, L_field3, DOUBLE L_field4

  1. you r select all values here?
  2. try to give alias for all columns

• For a single table import failed...

  Hello
  On the production server, I reported a user db, let's call it PRD_USER, with tablespace PRD_TBL default.
  On the development server, I reported a user db, let's call it PRD_USER, with tablespace DEV_TBL default.
  On the production server, I use the db of exp utility to import as:
  IMP System/Manager of the user PRD_USER touser = PRD_USER = ignore = file_name = «...» ' log = «...» ».
  Succeeds the import for about 25 tables and indexes and constraints, but it fails for a single table with the error: {I don't remember the error ORA- and I do not have access currently} DEV_TBL tablespace does not exist.
  
  Of course this tablespace does not exist on production env. But how this problem arises because the default tablespace for the user is not DEV_TBL but PRD_TBL...?
  
  Do you have any idea what can be the cause and how can I overcome this problem when importing...? {Note: I gave a temporary solution... take the table creation sql script leaving aside the reference of the tablespace "DEV_TBL"}.
  
  The two servers work in exactly the same version of DB...
  Note: I use DB 10g v.2
  
  Thank you
  SIM

  If the table has Partitions, import strives to create the Partitions (in the CREATE TABLE statement) on the original table space.

  OR there is a LOB segment in the table import strives to create on the original table space.

  Hemant K Collette

• sort numbers separated by a comma in a table

  The attached VI should accept two numbers, separated by commas, and then use the first number to set a Boolean value in a table. Then the next number must set the corresponding location of the array with the value.

  For example, for a table of 5 elements:

  User input is 3, 2. The VI will produce the following two tables:

  F 0

  F 0

  T 2

  F 0

  F 0

  
  

• Value separated by commas in a table column to get each field separtely?

  Hello

  I have the table that a column has values separated by commas in it. This table is populated using SQL LOADER, which is staging table.

  I need to retrieve the records of these values separated by commas.

  format of. CSV file is as -

  A separate file of pipes.

  DHCP-1-1-1. WNLB-CMTS-01-1,WNLB-CMTS-02-2|

  DHCP-1-1-2. WNLB-CMTS-03-3,WNLB-CMTS-04-4,WNLB-CMTS-05-5|

  DHCP-1-1-3. WNLB-CMTS-01-1.

  DHCP-1-1-4. WNLB-CMTS-05-8,WNLB-CMTS-05-6,WNLB-CMTS-05-0,WNLB-CMTS-03-3|

  DHCP-1-1-5 | WNLB-CMTS-02-2,WNLB-CMTS-04-4,WNLB-CMTS-05-7|

  CREATE TABLE link_data (dhcp_token VARCHAR2 (30), cmts_to_add VARCHAR2 (200), cmts_to_remove VARCHAR2 (200));

  insert into link_data values ('dhcp-1-1-1','wnlb-cmts-01-1,wnlb-cmts-02-2',null);

  insert into link_data values ('dhcp-1-1-2','wnlb-cmts-03-3,wnlb-cmts-04-4,wnlb-cmts-05-5',null);

  insert into link_data values ('dhcp-1-1-3','wnlb-cmts-01-1',null);

  insert into link_data values ('dhcp-1-1-4','wnlb-cmts-05-8,wnlb-cmts-05-6,wnlb-cmts-05-0,wnlb-cmts-03-3',null);

  insert into link_data values ('dhcp-1-1-5','wnlb-cmts-02-2,wnlb-cmts-04-4,wnlb-cmts-05-7',null);

  Here the cmts_to_add column has comma separted

  I need values such as -.

  > for wnlb-cmts-01-1,wnlb-cmts-02-2 > > wnlb-CMTS-01-1

  > > wnlb-CMTS-02-2

  > for wnlb-cmts-03-3,wnlb-cmts-04-4,wnlb-cmts-05-5 > > wnlb-CMTS-03-3

  > > wnlb-CMTS-04-4

  > > wnlb-CMTS-05-5

  And so on...

  I do this because it's the staging table and I load data into the main tables using this table.

  This second field contain different values as the simple comma-delimited string.

  I need to write a PLSQL block to insert into the main table after checking as if dhcp-1-1-1 and wnlb-CMTS-01-1 is present in the main table so not to introduce other insert a new record.

  To meet this requirement, I need to get the distinct value of the cmts_to_add column to insert into DB.

  the value will be inserted as dhcp-1-1-1_TO_wnlb-cmts-01-1 and dhcp-1-1-1_TO_wnlb-cmts-02-2 for the first row of the array of link_data.

  The process will also be same for the rest of the lines.

  I use the function substrt and instr for this problem, but its does not work.

  declare

  cursor c_link is select * from link_data.

  l_rec_link link_data % rowtype;

  l_dhcp varchar2 (30);

  l_cmts varchar2 (20000);

  l_cmts_1 varchar2 (32000);

  Start

  Open c_link;

  loop

  extract the c_link in l_rec_link;

  l_cmts: = l_rec_link.cmts_to_add;

  loop

  l_cmts_1: = substr (l_cmts, 1, instr(l_cmts,',')-1);

  dbms_output.put_line (l_cmts_1);

  end loop;

  dbms_output.put_line(l_dhcp||) e '|| l_cmts);

  When the output c_link % notfound;

  end loop;

  exception

  while others then

  Dbms_output.put_line ('ERROR' |) SQLERRM);

  end;

  Its a peusdo code I write, but it also gives me the wrong answer it gives me error ORA-20000: ORU-10027: buffer overflow, limit of 20000 bytes

  I am using-

  Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production

  Please tell me if my problem isn't clear!

  Hello

  little 'trick': Add a comma at the end of the chain... So it's easier to deal with the fact that there are zero, one, or N components...

  CREATE TABLE link_data (dhcp_token VARCHAR2 (30), cmts_to_add VARCHAR2 (200), cmts_to_remove VARCHAR2 (200));
  insert into link_data values ('dhcp-1-1-1','wnlb-cmts-01-1,wnlb-cmts-02-2',null);
  insert into link_data values ('dhcp-1-1-2','wnlb-cmts-03-3,wnlb-cmts-04-4,wnlb-cmts-05-5',null);
  insert into link_data values ('dhcp-1-1-3','wnlb-cmts-01-1',null);
  insert into link_data values ('dhcp-1-1-4','wnlb-cmts-05-8,wnlb-cmts-05-6,wnlb-cmts-05-0,wnlb-cmts-03-3',null);
  insert into link_data values ('dhcp-1-1-5','wnlb-cmts-02-2,wnlb-cmts-04-4,wnlb-cmts-05-7',null);
  COMMIT;

  SET SERVEROUT ON
  DECLARE
  l_cmts VARCHAR2 (200 CHAR);
  l_cmts_1 VARCHAR2 (200 CHAR);
  BEGIN
  FOR r IN (SELECT dhcp_token, cmts_to_add |) ',' cmts
  OF link_data
  )
  LOOP
  l_cmts: = r.cmts;
  l_cmts_1: = SUBSTR (l_cmts, 1, INSTR (l_cmts, ",") - 1);
  While l_cmts_1 IS NOT NULL
  LOOP
  DBMS_OUTPUT. Put_line (r.dhcp_token |) '|' || l_cmts_1);
  l_cmts: = SUBSTR (l_cmts, INSTR (l_cmts, ",") + 1);
  l_cmts_1: = SUBSTR (l_cmts, 1, INSTR (l_cmts, ",") - 1);
  END LOOP;
  END LOOP;
  END;
  /
  DHCP-1-1-1. WNLB-CMTS-01-1
  DHCP-1-1-1. WNLB-CMTS-02-2
  DHCP-1-1-2. WNLB-CMTS-03-3
  DHCP-1-1-2. WNLB-CMTS-04-4
  DHCP-1-1-2. WNLB-CMTS-05-5
  DHCP-1-1-3. WNLB-CMTS-01-1
  DHCP-1-1-4. WNLB-CMTS-05-8
  DHCP-1-1-4. WNLB-CMTS-05-6
  DHCP-1-1-4. WNLB-CMTS-05-0
  DHCP-1-1-4. WNLB-CMTS-03-3
  DHCP-1-1-5 | WNLB-CMTS-02-2
  DHCP-1-1-5 | WNLB-CMTS-04-4
  DHCP-1-1-5 | WNLB-CMTS-05-7

  Best regards

  Bruno Vroman.

• Multiple values in a single Table cell

  Hello

  I have a requirement of the customer. I need to show multiple values within a table cell

  Example of

  Location	City	Shop
  North	City A	HS-200, SH-210, SH310
  South	City B	SH - 100, SH341
  East	City C	SH-20

  But my table shows repeating cell as follows.

  Location	City	Shop
  North	City A	SH-200
  North	City A	SH-210
  North	City A	SH310
  South	City B	SH-100
  South	City B	SH341
  East	City C	SH-20

  So I need your help to show repeated STORE name in a single column of the Table.

  Thank you

  Try this

  EVALUATE_AGGR ('LISTAGG (%1, %2) within THE GROUP (ORDER BY DESC %3)', TableName.ColumnName, ',', TableName.ColumnName)

• Commit performance on table with Fast Refresh MV

  Hello world
  
  Try to wrap your head around fast refresh performance and why I see (what I consider) high disk numbers / query associated with the update of the MV_LOG in a TKPROF.
  
  The installation program.
  (Oracle 10.2.0.4.0)
  
  Database table:

  SQL> desc action;
   Name                                      Null?    Type
   ----------------------------------------- -------- ----------------------------
   PK_ACTION_ID                              NOT NULL NUMBER(10)
   CATEGORY                                           VARCHAR2(20)
   INT_DESCRIPTION                                    VARCHAR2(4000)
   EXT_DESCRIPTION                                    VARCHAR2(4000)
   ACTION_TITLE                              NOT NULL VARCHAR2(400)
   CALL_DURATION                                      VARCHAR2(6)
   DATE_OPENED                               NOT NULL DATE
   CONTRACT                                           VARCHAR2(100)
   SOFTWARE_SUMMARY                                   VARCHAR2(2000)
   MACHINE_NAME                                       VARCHAR2(25)
   BILLING_STATUS                                     VARCHAR2(15)
   ACTION_NUMBER                                      NUMBER(3)
   THIRD_PARTY_NAME                                   VARCHAR2(25)
   MAILED_TO                                          VARCHAR2(400)
   FK_CONTACT_ID                                      NUMBER(10)
   FK_EMPLOYEE_ID                            NOT NULL NUMBER(10)
   FK_ISSUE_ID                               NOT NULL NUMBER(10)
   STATUS                                             VARCHAR2(80)
   PRIORITY                                           NUMBER(1)
   EMAILED_CUSTOMER                                   TIMESTAMP(6) WITH LOCAL TIME
                                                       ZONE
  
  
  SQL> select count(*) from action;
  
    COUNT(*)
  ----------
     1388780

  MV was created

  create materialized view log on action with sequence, rowid
  (pk_action_id, fk_issue_id, date_opened) 
  including new values;
  
  -- Create materialized view
  create materialized view issue_open_mv
  build immediate
  refresh fast on commit
  enable query rewrite as 
  select  fk_issue_id issue_id,
       count(*) cnt,
       min(date_opened) issue_open,
       max(date_opened) last_action_date,
       min(pk_action_id) first_action_id,
       max(pk_action_id) last_action_id,
       count(pk_action_id) num_actions
  from    action
  group by fk_issue_id;
  
  exec dbms_stats.gather_table_stats('tg','issue_open_mv')
  
  SQL> select table_name, last_analyzed from dba_tables where table_name = 'ISSUE_OPEN_MV';
  
  TABLE_NAME                     LAST_ANAL
  ------------------------------ ---------
  ISSUE_OPEN_MV                  15-NOV-10
  
  *note: table was created a couple of days ago *
  
  SQL> exec dbms_mview.explain_mview('TG.ISSUE_OPEN_MV');
  
  CAPABILITY_NAME                P REL_TEXT MSGTXT
  ------------------------------ - -------- ------------------------------------------------------------
  PCT                            N
  REFRESH_COMPLETE               Y
  REFRESH_FAST                   Y
  REWRITE                        Y
  PCT_TABLE                      N ACTION   relation is not a partitioned table
  REFRESH_FAST_AFTER_INSERT      Y
  REFRESH_FAST_AFTER_ANY_DML     Y
  REFRESH_FAST_PCT               N          PCT is not possible on any of the detail tables in the mater
  REWRITE_FULL_TEXT_MATCH        Y
  REWRITE_PARTIAL_TEXT_MATCH     Y
  REWRITE_GENERAL                Y
  REWRITE_PCT                    N          general rewrite is not possible or PCT is not possible on an
  PCT_TABLE_REWRITE              N ACTION   relation is not a partitioned table
  
  13 rows selected.

  Fast refresh works fine. And the newspaper is kept small enough.
  

  SQL> select count(*) from mlog$_action;
  
    COUNT(*)
  ----------
           0

  When I update a row in the base table:

  var in_action_id number;
  
  exec :in_action_id := 398385;
  
  UPDATE action
  SET emailed_customer = SYSTIMESTAMP
  WHERE pk_action_id = :in_action_id
  AND DECODE(emailed_customer, NULL, 0, 1) = 0
  /
  
  commit;

  What follows, I get via tkprof.

  ********************************************************************************
  
  INSERT /*+ IDX(0) */ INTO "TG"."MLOG$_ACTION" (dmltype$$,old_new$$,snaptime$$,
    change_vector$$,sequence$$,m_row$$,"PK_ACTION_ID","DATE_OPENED",
    "FK_ISSUE_ID")
  VALUES
   (:d,:o,to_date('4000-01-01:00:00:00','YYYY-MM-DD:HH24:MI:SS'),:c,
    sys.cdc_rsid_seq$.nextval,:m,:1,:2,:3)
  
  
  call     count       cpu    elapsed       disk      query    current        rows
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  Parse        1      0.00       0.01          0          0          0           0
  Execute      2      0.00       0.03          4          4          4           2
  Fetch        0      0.00       0.00          0          0          0           0
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  total        3      0.00       0.04          4          4          4           2
  
  Misses in library cache during parse: 1
  Misses in library cache during execute: 1
  Optimizer mode: CHOOSE
  Parsing user id: SYS   (recursive depth: 1)
  
  Rows     Row Source Operation
  -------  ---------------------------------------------------
        2  SEQUENCE  CDC_RSID_SEQ$ (cr=0 pr=0 pw=0 time=28 us)
  
  
  Elapsed times include waiting on following events:
    Event waited on                             Times   Max. Wait  Total Waited
    ----------------------------------------   Waited  ----------  ------------
    db file sequential read                         4        0.01          0.01
  ********************************************************************************
  
  ********************************************************************************
  
  update "TG"."MLOG$_ACTION" set snaptime$$ = :1
  where
   snaptime$$ > to_date('2100-01-01:00:00:00','YYYY-MM-DD:HH24:MI:SS')
  
  
  call     count       cpu    elapsed       disk      query    current        rows
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  Parse        1      0.00       0.01          0          0          0           0
  Execute      1      0.94       5.36      55996      56012          1           2
  Fetch        0      0.00       0.00          0          0          0           0
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  total        2      0.94       5.38      55996      56012          1           2
  
  Misses in library cache during parse: 1
  Misses in library cache during execute: 1
  Optimizer mode: CHOOSE
  Parsing user id: SYS   (recursive depth: 1)
  
  Rows     Row Source Operation
  -------  ---------------------------------------------------
        0  UPDATE  MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=5364554 us)
        2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=46756 us)
  
  
  Elapsed times include waiting on following events:
    Event waited on                             Times   Max. Wait  Total Waited
    ----------------------------------------   Waited  ----------  ------------
    db file scattered read                       3529        0.02          4.91
  ********************************************************************************
  
  select dmltype$$, max(snaptime$$)
  from
   "TG"."MLOG$_ACTION"  where snaptime$$ <= :1  group by dmltype$$
  
  
  call     count       cpu    elapsed       disk      query    current        rows
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  Parse        1      0.00       0.00          0          0          0           0
  Execute      1      0.00       0.00          0          0          0           0
  Fetch        2      0.70       0.68      55996      56012          0           1
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  total        4      0.70       0.68      55996      56012          0           1
  
  Misses in library cache during parse: 1
  Misses in library cache during execute: 1
  Optimizer mode: CHOOSE
  Parsing user id: SYS   (recursive depth: 1)
  
  Rows     Row Source Operation
  -------  ---------------------------------------------------
        1  SORT GROUP BY (cr=56012 pr=55996 pw=0 time=685671 us)
        2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=1851 us)
  
  
  Elapsed times include waiting on following events:
    Event waited on                             Times   Max. Wait  Total Waited
    ----------------------------------------   Waited  ----------  ------------
    db file scattered read                       3529        0.00          0.38
  ********************************************************************************
  
  delete from "TG"."MLOG$_ACTION"
  where
   snaptime$$ <= :1
  
  
  call     count       cpu    elapsed       disk      query    current        rows
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  Parse        1      0.00       0.00          0          0          0           0
  Execute      1      0.71       0.70      55946      56012          3           2
  Fetch        0      0.00       0.00          0          0          0           0
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  total        2      0.71       0.70      55946      56012          3           2
  
  Misses in library cache during parse: 1
  Misses in library cache during execute: 1
  Optimizer mode: CHOOSE
  Parsing user id: SYS   (recursive depth: 1)
  
  Rows     Row Source Operation
  -------  ---------------------------------------------------
        0  DELETE  MLOG$_ACTION (cr=56012 pr=55946 pw=0 time=702813 us)
        2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55946 pw=0 time=1814 us)
  
  
  Elapsed times include waiting on following events:
    Event waited on                             Times   Max. Wait  Total Waited
    ----------------------------------------   Waited  ----------  ------------
    db file scattered read                       3530        0.00          0.39
    db file sequential read                        33        0.00          0.00
  ********************************************************************************

  Could someone explain why the the SELECT/UPDATE/DELETE on MLOG$ _ACTION if 'expensive' when it should be only 2 rows (the old value and the new value) in this newspaper after an update? I could do to improve the performance of the update?
  
  Let me know if you need more info... would be happy to provide.

  My guess would be that you were once a very large transaction that inserted a large number of rows in this table. So the table segment is big enough now and the high watermark is average at the end of this segment, causing a full scan table to analyze a large number of empty blocks and retrieve the two lines.

  You can issue a truncation on this table of $ MLOG: which would free up the empty blocks and brings back the high-watermark in the first block.

• Values separated by a nested as comma from string table

  I would insert the contents of a table nested in the form of comma-separated values in a string.
  
  
  For example, I created:
  
  CREATE TYPE u_results AS TABLE OF VARCHAR2 (10);
  /
  
  CREATE TABLE example_table)
  number of obj_id,
  obj_results u_results)
  NESTED TABLE obj_results STORE AS obj_results_t;
  
  INSERT INTO example_table (obj_id, obj_results) VALUES (1, u_results ('OK', 'NOK', 'NN'));
  INSERT INTO example_table (obj_id, obj_results) VALUES (2, u_results ('OK', 'NOK'));
  
  CREATE TABLE example_table2)
  number of obj_id,
  obj_results2 VARCHAR2 (100));
  
  So, in the example_table2 table I would have obj_results values in obj_results2 as string separated by commas.
  
  for example
  OBJ_ID obj_results2
  1 OK, NOK, NN
  2 OK, NOK
  
  Any ideas? Thank you
  G.

  SQL>  create type u_results as table of varchar2 (10);
  /
  Type created.
  
  SQL>  select rtrim (xmlagg (xmlelement (e, column_value || ',')).extract ('//text()'), ',') csv
        from table (u_results ('AA', 'BB')) t
  /
  CSV
  ----------
  AA,BB
  1 row selected.
  
  SQL>  drop type u_results
  /
  Type dropped.
  

• Problem using the list separated by commas with nested table element

  Hello
  
  I have a list separated by commas like this:

  H23004,H24005,T7231,T8231,T9231

  And want to create a function that creates a where clause clause for each element with an output like this:

  UPPER('H23004') IN (UPPER(charge))
  OR UPPER('H23005') IN (UPPER(charge))
  OR UPPER('T7231') IN (UPPER(charge))
  OR UPPER('T8231') IN (UPPER(charge))
  OR UPPER('T9231') IN (UPPER(charge))

  Here's my test function that is not working properly:

  create or replace function FNC_LIST_TO_WHERE_CLAUSE(v_list in VARCHAR2) return varchar2 is
   -- declaration of list type
   TYPE batch_type IS TABLE OF pr_stamm.charge%TYPE;
   -- variable for Batches
   v_batch batch_type := batch_type('''' || replace(v_list,',',''',''') || '''');
   return_script varchar2(1000);
  
   BEGIN
   -- loop as long as there are objects left
   FOR i IN v_batch.FIRST .. v_batch.LAST
   LOOP
     --DBMS_OUTPUT.PUT_LINE(offices(i));
     -- create where clause
     IF i = 1 THEN
       return_script := 'UPPER(' || v_batch(i) || ') IN (UPPER(charge))';
     ELSE
       return_script := return_script || ' OR UPPER(' || v_batch(i) || ') IN (UPPER(charge))';
     END IF;
   END LOOP;
  
   return (return_script);
   end;

  The out put looks like this:

  UPPER('H23004','H24005','T7231','T8231','T9231') IN (UPPER(charge))

  I don't know what I did wrong? It calculates the amount of the incorrect array element! (v_batch. Must be 5)
  v_batch. FIRST = 1
  v_batch. LAST = 1
  
  Kind regards
  
  Tobias

  Try this...

  declare
  text varchar2 (1000): = "H23004, H24005, T7231, T8231, T9231;
  v_where varchar2 (1000);
  Start
  Text: = text | «, » ;
  While instr (text, ',') <> 0
  loop
  v_where: = v_where | ' UPPER ("': substr (Text, 1, InStr(Text,',',1)-1) |") ' IN (UPPER (load)) OR ';
  text: = substr (text, instr(text,',',1) + 1);
  end loop;
  v_where: = substr (v_where, 1, length (v_where)-3);
  dbms_output.put_line (v_where);
  end;

  convert it to function...