Why is query on Table XMLTYPE ACME_CUST do a full Table Scan?

Similar Questions

• I CAN QUERY A TABLE EVEN AFTER THE DELETION OF THE DATA FILE

  Hello

  Can someone explain to me the reason why I am able to interview some tables even after the deletion of the data that are associated with file?

  SQL > select table_name, tablespace_name from dba_tables where owner = 'SCOTT ';

  TABLE_NAME, TABLESPACE_NAME

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

  TEST2 USERS

  TEST USERS

  SALGRADE USERS

  USERS OF BONUS

  USERS OF THE EMP

  USERS OF DEPT

  6 selected lines.

  SQL > exit

  Disconnected from the database to Oracle 11 g Enterprise Edition Release 11.2.0.1.0 - Production

  With partitioning, OLAP, Data Mining and Real Application Testing options

  [oracle@localhost orcl] $ rm /app/oracle/oradata/orcl/users01.dbf

  [oracle@localhost orcl] $ sqlplus scott/scott

  SQL * more: Production version 11.2.0.1.0 on Mon Mar 30 21:35:54 2015

  Copyright (c) 1982, 2009, Oracle.  All rights reserved.

  Connected to:

  Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production

  With partitioning, OLAP, Data Mining and Real Application Testing options

  SQL > select count (*) from test2;

  Select count (*) from test2

  *

  ERROR on line 1:

  ORA-01116: error opening the database file 4

  ORA-01110: data file 4: ' / app/oracle/oradata/orcl/users01.dbf'

  ORA-27041: could not open the file

  Linux error: 2: no such file or directory

  Additional information: 3

  SQL > select count (*) of the test;

  COUNT (*)

  ----------

  5000

  SQL >

  The first output is as expected. But why am I still able to query the table of test, even if the data file has been deleted.

  Hello

  The process of database have a file handle for the data file - this remains even when the file is deleted (it disappears from the normal file system navigation)

  You can see if you have lsof installed

  just try

  lsof | grep datafile_name

  Once the database is restarted and the released file handle so you will not be able to do this any more - and in fact you will get errors when it can't find the file.

  See you soon,.

  Rich

• The query makes a full table scan?

  I have a simple select query that filters on the last 10 or 11 days of data in a table. In the first case, it runs in 1 second. In the second case it takes 15 minutes and still not done.
  
  I can say that the second query (11 days) makes a full table scan.
  -Why is this happening? ... I guess some kind of threshold?
  -Are there a way to avoid this? ... or encourage Oracle to play nice.
  
  I find confusing from the point of view before end/query to get very different performances.
  
  Jason
  Oracle 10g
  Toad quest 10.6
  
  

  CREATE TABLE delme10 AS 
  SELECT *
  FROM ed_visits
  WHERE first_contact_dt >= TRUNC(SYSDATE-10,'D');
  
  Plan hash value: 915912709
  
  --------------------------------------------------------------------------------------------------
  | Id  | Operation                    | Name              | Rows  | Bytes | Cost (%CPU)| Time     |
  --------------------------------------------------------------------------------------------------
  |   0 | CREATE TABLE STATEMENT       |                   |  4799 |  5534K|  4951   (1)| 00:01:00 |
  |   1 |  LOAD AS SELECT              | DELME10           |       |       |            |          |
  |   2 |   TABLE ACCESS BY INDEX ROWID| ED_VISITS         |  4799 |  5534K|  4796   (1)| 00:00:58 |
  |*  3 |    INDEX RANGE SCAN          | NDX_ED_VISITS_020 |  4799 |       |    15   (0)| 00:00:01 |
  --------------------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     3 - access("FIRST_CONTACT_DT">=TRUNC(SYSDATE@!-10,'fmd'))
  
  
  CREATE TABLE delme11 AS 
  SELECT *
  FROM ed_visits
  WHERE first_contact_dt >= TRUNC(SYSDATE-11,'D');
  Plan hash value: 1113251513
  
  -----------------------------------------------------------------------------------------------------------------
  | Id  | Operation              | Name      | Rows  | Bytes | Cost (%CPU)| Time     |    TQ  |IN-OUT| PQ Distrib |
  -----------------------------------------------------------------------------------------------------------------
  |   0 | CREATE TABLE STATEMENT |           | 25157 |    28M| 14580   (1)| 00:02:55 |        |      |            |
  |   1 |  LOAD AS SELECT        | DELME11   |       |       |            |          |        |      |            |
  |   2 |   PX COORDINATOR       |           |       |       |            |          |        |      |            |
  |   3 |    PX SEND QC (RANDOM) | :TQ10000  | 25157 |    28M| 14530   (1)| 00:02:55 |  Q1,00 | P->S | QC (RAND)  |
  |   4 |     PX BLOCK ITERATOR  |           | 25157 |    28M| 14530   (1)| 00:02:55 |  Q1,00 | PCWC |            |
  |*  5 |      TABLE ACCESS FULL | ED_VISITS | 25157 |    28M| 14530   (1)| 00:02:55 |  Q1,00 | PCWP |            |
  -----------------------------------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     5 - filter("FIRST_CONTACT_DT">=TRUNC(SYSDATE@!-11,'fmd'))

  This seems to change the plan to explain it...

  alter session set optimizer_index_cost_adj=10;
  

• FULL TABLE SCAN even with the index, but why?

  Could someone please explain why I'd get FULL TABLE SCAN explain plan results when joining 2 tables on columns that already have clues about them? For example,.
  consider this fictional scenario:
  
  employee table with columns:
  employee # (primary key column)
  name
  
  address table with columns:
  employee # (foreign key to employee.employee #)
  subscription_type
  address
  
  Select Employee.Name since it is, address.address_type, address.address
  where employee.employee # = address.employee #.
  
  This query shows a full table scan in terms of the explain command.

  Full scan of the table is not necessarily slow and index access is not necessarily fast.

  You will recover, no doubt, most if not all the ranks on both sides. The fastest way to retrieve each row in a table is to do a table scan. Using an index, and a single block of reading for each row in a table is much less effective than to do a table scan.

  Justin

• CBO: full instead of bitmap index use, why table scan?

  I have a query in which it is clearly benefitial to use the bitmap index, rather oracle goes for the full table scan. Could you please shed some light on this? Because even a hint does not help, I guess that something prevents oracle (11.1.0.7.0) to use it in a sort of range index scan pass.
  
  installation program:

  create table test_distance (
  x_display number,
  y_display number,
  x_rough number(5,2) as (trunc(x_display,2)),
  y_rough number(5,2) as (trunc(y_display,2)));
  
  insert into test_distance (x_display,y_display) 
  (select dbms_random.value(-180,180), dbms_random.value(-90,90) from dual connect by level < 200000);
  
  create bitmap index test_bm_xrough on test_distance(x_rough);
  create bitmap index test_bm_yrough on test_distance(y_rough);
  
  create or replace function  western_bbox_longitude(x binary_double, y binary_double, radius binary_double) return number
  is
  begin
    --simplified
   return x - 0.0001*radius;
  end;
  /
  
  exec dbms_stats.gather_table_stats(user,'TEST_DISTANCE',cascade=>true,estimate_percent=>100);

  several select statements:

  --remember x and y values and use them in the subsequent queries.
  select * from test_distance where rownum = 1;
  
  alter session set statistics_level = all;
  
  --no bind variable, no function call -> proper plan
  select * from test_distance where x_rough = 16.14 and y_rough = -35.53;
  select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
  
  --with bind variable, no function call -> still proper plan
  select * from test_distance where x_rough = :xin and y_rough = :yin;
  select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
  
  --using between, bind variable, no function call -> proper plan
  select * from test_distance where x_rough between :xin-0.01 and :xin and y_rough between :yin-0.01 and :yin;
  select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
  
  
  --full table scan, why?
  select td.*,
  trunc(western_bbox_longitude(:xin,:yin,:radius),2)
  from test_distance td 
  where x_rough = trunc(
  western_bbox_longitude(:xin,:yin,:radius),2);
  select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
  
  --forcing oracle to use the index results in bitmap index full instead of range scan, why?
  select /*+ index( td test_bm_xrough) */ td.*,
  trunc(western_bbox_longitude(:xin,:yin,:radius),2)
  from test_distance td 
  where x_rough = trunc(
  western_bbox_longitude(:xin,:yin,:radius),2);
  select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
  
  --guessing it might be related to the selectivity of the function doesn't change the plan either
  associate statistics with functions western_bbox_longitude default selectivity 0.001;

  Ah sorry, I somehow read the wrong line in your initial statement where it between the function has been used.

  Yes it is possible that the selectivity of the function plays a role here. More likely may be the order of execution for the undeterministic functions is then different for literals. However, you can try to work around this problem by using a few different approaches.

  encapsulate the function inside a double subseelct

  select /*+ index( td test_bm_xrough) */ td.*,
     (select trunc(western_bbox_longitude(:xin,:yin,:radius),2))
  from test_distance td
  where x_rough = (select trunc(western_bbox_longitude(:xin,:yin,:radius),2) from dual);
  

  This should allow to cache the result of the function to a certain extent. Otherwise, the result of the function may be recalculated for each row in the test_distance table.

  The same can be achieved with a WITH clause
  not tested

  with wboxlong as (select trunc(western_bbox_longitude(:xin,:yin,:radius),2) xrough from dual)
  select /*+ index( td test_bm_xrough) */ td.*,
     x.xrough
  from test_distance td
  join wboxlong x on td.x_rough = x.xrough
  

  Also note that your tip worked. Oracle uses the bitmap indexes to access the data. Index indicator indicates to the CBO to use this index if possible, but is not on the path. If you want a different plan, you can try to apply also the path combined with a suspicion as NO_INDEX_FFS (http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/sql_elements006.htm#SQLRF50413).

  Published by: Sven w. on January 3, 2011 18:57

• Why "FULL TABLE SCAN?

  I have a table with 831 k lines and index:

  CREATE TABLE "ROGADM"."ROG_LOG" (
      "LOG_ID"       NUMBER(10,0),
      "LOG_OBK_TYP"  VARCHAR2(30 BYTE),
      "LOG_OBK_ID"   VARCHAR2(200 BYTE),
      "LOG_TYP"      VARCHAR2(30 BYTE),
      "LOG_RODZAJ"   VARCHAR2(30 BYTE),
      "LOG_R_OBK_ID" VARCHAR2(200 BYTE),
      "LOG_DATA_ZDARZENIA" DATE,
      "LOG_OPIS_ZDARZENIA" VARCHAR2(4000 BYTE),
      "LOG_UTWORZYL"       VARCHAR2(30 BYTE),
      "LOG_KIEDY_UTWORZYL" DATE,
      CONSTRAINT "LOG_PK" PRIMARY KEY ("LOG_ID")
  );
  CREATE INDEX "ROGADM"."LOG_I" ON "ROGADM"."ROG_LOG" (
      "LOG_OBK_ID",
      "LOG_OBK_TYP",
      "LOG_TYP",
      "LOG_RODZAJ"
  );
  CREATE INDEX "ROGADM"."LOG_I2" ON "ROGADM"."ROG_LOG" (
      "LOG_R_OBK_ID",
      "LOG_RODZAJ"
  );
  CREATE UNIQUE INDEX "ROGADM"."LOG_PK" ON "ROGADM"."ROG_LOG" (
      "LOG_ID"
  );

  When I run of EXPLAIN PLAN for the sql:

  SELECT log_obk_id FROM rog_log;

  the output is

  PLAN_TABLE_OUTPUT
  Plan hash value: 3822058985
   
  -----------------------------------------------------------------------------
  | Id  | Operation         | Name    | Rows  | Bytes | Cost (%CPU)| Time     |
  -----------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |         |   831K|  8122K|  2240   (2)| 00:00:27 |
  |   1 |  TABLE ACCESS FULL| ROG_LOG |   831K|  8122K|  2240   (2)| 00:00:27 |
  -----------------------------------------------------------------------------

  Why?

  You have an index on the LOG_OBK_ID column. But when you select this column see you FULL TABLE SCAN and no index is used.

  This is because you have not set your column as NOT NULL value column. Oracle stores a NULL value in the index. And that is why when you query the table for LOG_OBK_ID he goes to the table and does not use the index.

  See the example below

  SQL> create table my_test ( object_id number not null, object_type varchar2(100), object_name varchar2(100));
  
  Table created.
  
  SQL> create index my_test_idx on my_test(object_id, object_type);
  
  Index created.
  
  SQL> insert into my_test
    2  select object_id, object_type, object_name
    3    from all_objects
    4   where rownum <= 100000
    5  /
  
  50058 rows created.
  
  SQL> commit
    2  /
  
  Commit complete.
  
  SQL> exec dbms_stats.gather_table_stats('KARTHICK_PATTABIRAMAN','MY_TEST',cascade=>true)
  
  PL/SQL procedure successfully completed.
  
  SQL> explain plan for select object_id from my_test
    2  /
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display)
    2  /
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 720752151
  ------------------------------------------------------------------------------------
  | Id  | Operation            | Name        | Rows  | Bytes | Cost (%CPU)| Time   |
  ------------------------------------------------------------------------------------
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT     |             | 50058 |   244K|    36   (0)| 00:00:01 |
  |   1 |  INDEX FAST FULL SCAN| MY_TEST_IDX | 50058 |   244K|    36   (0)| 00:00:01 |
  ------------------------------------------------------------------------------------
  
  8 rows selected.
  

  See the index is used. Oracle considers the index as a Skinny table version and do a FULL scan on the INDEX and not on the TABLE.

  Now, let us remove the NOT NULL constraint and see what happens.

  SQL> alter table my_test modify object_id null
    2  /
  
  Table altered.
  
  SQL> desc my_test
   Name                                      Null?    Type
   ----------------------------------------- -------- ----------------------------
   OBJECT_ID                                          NUMBER
   OBJECT_TYPE                                        VARCHAR2(100)
   OBJECT_NAME                                        VARCHAR2(100)
  
  SQL> exec dbms_stats.gather_table_stats('KARTHICK_PATTABIRAMAN','MY_TEST',cascade=>true)
  
  PL/SQL procedure successfully completed.
  
  SQL> explain plan for select object_id from my_test
    2  /
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display)
    2  /
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 1615681525
  
  -----------------------------------------------------------------------------
  | Id  | Operation         | Name    | Rows  | Bytes | Cost (%CPU)| Time     |
  -----------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |         | 50058 |   244K|    67   (0)| 00:00:01 |
  |   1 |  TABLE ACCESS FULL| MY_TEST | 50058 |   244K|    67   (0)| 00:00:01 |
  -----------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL>
  

  See oracle now goes for FULL TABLE SCAN.

• Why this query can remove duplicates?

  Why this query can remove duplicates? Can someone give me detailed explanation?
  
  Thank you
  

  select salary from employees union select salary from employees;

  Hello

  See the docs.

  ' Example of the UNION
  The following statement combines the results of two queries with the UNION operator which eliminates duplicates of selected lines.
  "This statement shows that you must match the data type (using the function TO_CHAR) when the columns do not exist in one or the other table"

  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14200/queries004.htm#i2054381

  Edit

  Here's another interpretation of your question:

  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:1224636375004

  Published by: hoek on October 22, 2009 17:40

• Publish everything in running the publishing application ATG - CRS Server. Unable to query the table 'das_id_generator '.

  Hello

  I use ATG version 10.2 and you have configured CRS application by IMC. All data import and deployments have been successful.

  Applications of short (MDEX 6.4.1, CASE 3.2.1 6.4.1.2, tools and Framework 3.1.2 platform services) are running: port 8006, 8500, race 8888.

  Now MY PROBLEM IS in TWO PARTS:

  PART 1)  Ran the store on jboss, has worked well, core application started without any error.  When trying to load the homepage, get following error message:

  16:42:25, 926 full repository INFO [SEORepository] SQL boot

  16:43:32, 653 ERROR [DynamoServlet]

  CAUGHT AT:

  Container: ATG.servlet.jsp.ContainerJspException: Cannot find the named component: / atg/registry/Slots/HomeTheme; Source: javax.servlet.ServletException: Cannot find the named component: / atg/registry/Slots/HomeTheme

  at atg.taglib.dspjsp.ParamTag.doStartTag(ParamTag.java:419)

  at org.apache.jsp.navigation.gadgets.homePagePromotions_jsp._jspx_meth_dsp_005fparam_005f0(homePagePromotions_jsp.java:1021)

  at org.apache.jsp.navigation.gadgets.homePagePromotions_jsp._jspService(homePagePromotions_jsp.java:219)

  at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

  at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)

  at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)

  at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)

  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

  at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:638)

  at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:543)

  at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:480)

  at atg.servlet.WrappingRequestDispatcher.include(WrappingRequestDispatcher.java:123)

  at atg.taglib.dspjsp.IncludeTag.doEndTag(IncludeTag.java:883)

  at org.apache.jsp.index_jsp._jspx_meth_dsp_005finclude_005f1(index_jsp.java:633)

  to org.apache.jsp.index_jsp.access$ 1 (index_jsp.java:622)

  to org.apache.jsp.index_jsp$ Helper.invoke1 (index_jsp.java:685)

  to org.apache.jsp.index_jsp$ Helper.invoke (index_jsp.java:711)

  at org.apache.jsp.tag.web.store.pageContainer_tag._jspx_meth_c_005fwhen_005f1(pageContainer_tag.java:2757)

  at org.apache.jsp.tag.web.store.pageContainer_tag.doTag(pageContainer_tag.java:812)

  at org.apache.jsp.index_jsp._jspx_meth_crs_005fpageContainer_005f0(index_jsp.java:598)

  at org.apache.jsp.index_jsp._jspx_meth_dsp_005fpage_005f1(index_jsp.java:565)

  at org.apache.jsp.index_jsp._jspService(index_jsp.java:127)

  at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

  ...........................

  ...........................

  ...........................

  ...........................

  At this point, the CRS page opens but no short content. Don't load no registration, no image on the home page does display, NO SEARCH BOX displayed in the header.

  PART 2)  On top of that when I try to run the server pubishing on JBOSS, start does'nt server and responds to error. If the das_id_generator table exists in DB for all 4 patterns.

  16:09:41, 082 INFO [ScreenLog] with logging of external for debug messages and trace kernel to avoid hidden kernel logging information. Set the property /atg/dynamo/service/logging/ScreenLog.useInfoForDebug to false nucleus to use external instead trace and debug logging.

  16:09:41, 199 INFO [Version] HV000001: Hibernate Validator 4.3.1.Final

  16:09:41, 748 Truncating WARN [ClusterBroadcaster] serviceProperties "commandLineModules" key value

  16:09:42, size INFO [STDOUT] 345 (ERR_QUERY_TABLE, das_id_generator

  16:09:42, 351 ERROR [IdGenerator]

  CAUGHT AT:

  Container: ATG.service.IdGen.IdGeneratorException; Source: Container: ATG.service.IdGen.IdGeneratorException: Cannot query the table 'das_id_generator '. Please make sure that the table exists and is accessible before you start this service. ; Source: Java.Sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist

  at atg.service.idgen.PersistentIdGenerator.initialize(PersistentIdGenerator.java:389)

  at atg.service.idgen.AbstractSequentialIdGenerator.doStartService(AbstractSequentialIdGenerator.java:643)

  at atg.nucleus.GenericService.startService(GenericService.java:561)

  at atg.nucleus.NucleusNameResolver.startService(NucleusNameResolver.java:1726)

  at atg.nucleus.NucleusNameResolver.configureAndStartService(NucleusNameResolver.java:1397)

  at atg.nucleus.NucleusNameResolver.createFromName(NucleusNameResolver.java:928)

  at atg.nucleus.NucleusNameResolver.createFromName(NucleusNameResolver.java:667)

  at atg.nucleus.NucleusNameResolver.createFromName(NucleusNameResolver.java:648)

  at atg.nucleus.NucleusNameResolver.resolveName(NucleusNameResolver.java:493)

  at atg.nucleus.ConfigurationRef.getValue(ConfigurationRef.java:119)

  at atg.nucleus.SimpleComponentState.setBeanProperty(SimpleComponentState.java:403)

  at atg.nucleus.SimpleConfigurationState.saveToBean(SimpleConfigurationState.java:240)

  at atg.nucleus.SimpleConfigurationState.configureBean(SimpleConfigurationState.java:263)

  at atg.nucleus.BeanConfigurator.configureBean(BeanConfigurator.java:297)

  at atg.nucleus.PropertyConfiguration.configureService(PropertyConfiguration.java:984)

  at atg.nucleus.SingleNucleusConfigurator.configureService(SingleNucleusConfigurator.java:84)

  at atg.nucleus.NucleusNameResolver.configureService(NucleusNameResolver.java:1643)

  at atg.nucleus.NucleusNameResolver.configureAndStartService(NucleusNameResolver.java:1368)

  ........................

  ........................

  ........................

  An early response would be really useful because we have demo in 10 days.

  Kind regards

  Ben Milot

  Thank you for this comment.

  I had created a fresh scheme for publication but the jboss was still pointing to the old.

  I've updated this pointers in file @ /server/ atg atg - ds - ds.xml. Worked like a charm!

  If 2nd EDITION solved.

  
  

  The QUESTION 1 depended on question 2. Once I ran publishing and completed the full deployment on ICC, 1st edition got resolved.

  Thanks to shaik and Grando

  Kind regards

  Ben Milot

• AF:query with table

  I use the af: query with table to create a query, but the funny page, is in charge of the query page, the data contained in af:table are not fulfilled automatically. any idea, what the problem is?
  
  Rgds!

  Hello
  Do you use ViewCriteria to build your af:query with table, if yes, go to your ViewObject, then select your viewCriteria and click edit, and then open the data of the user interface tab, then check the query automatically .

• Cannot query the table

  Hello
  on 10 g 2, I can not query a table, but it exists:

  SQL> show user
  USER is "SYS"
  SQL> select count(*) from PROP_USER1.Mytable;
  select count(*) from PROP_USER1.Mytable
                                   *
  ERROR at line 1:
  ORA-00942: table or view does not exist
  
  
  SQL> select object_name , owner, object_type from dba_objects where object_name like '%Mytable%';
  
  OBJECT_NAME               OWNER                          OBJECT_TYPE
  ------------------------- ------------------------------ -------------------
  Mytable                   PROP_USER1                    TABLE
  SQL> select count(*) from PROP_USER1.Mytable;
  select count(*) from PROP_USER1.Mytable
                                   *
  ERROR at line 1:
  ORA-00942: table or view does not exist

  Thanks for the help.

  Sign in as PROP_USER1 and check if you are able to query this table?

• Why this query produces no output?

  Why this query produces no output?
  

  select * from
  (
  SELECT 40 as startvalue, (24 * 60)*(To_Date('00:40', 'HH24:MI') - To_Date('00:00', 'HH24:MI')) as c
  FROM dual di
  ) q
  where q.c = q.startvalue

  And just to show that it works if round you...

  SQL> ed
  Wrote file afiedt.buf
  
    1  select * from
    2  (
    3  SELECT 40 as startvalue, round((24 * 60)*(To_Date('00:40', 'HH24:MI') - To_Date('00:00', 'HH24:MI')),0) as c
    4  FROM dual di
    5  ) q
    6* where q.c = q.startvalue
  SQL> /
  
  STARTVALUE          C
  ---------- ----------
          40         40
  

  I certainly wouldn't say using TRIM as PS has suggested. TRIM is a string function, not a digital function.

• Refresh table-form query on table only for pages in .jsff

  I have a group being generated as a presentation of table form. I would like for the page of the table to always refresh, and submit the form to refresh page after.
  I saw a thread about how to do this on a .jspx page: Refresh table-form query on table only
  
  Unfortunately, this does not work for me because I use the .jsff pages and they do not have access to the facesContext. Does anyone know how to do this for a .jsff page?
  
  Thank you
  Michelle

  Michelle,

  The taskflow 11 ADF in the equivalent of the region of this expression would be

  #{jhsPageChanged and controllerContext.currentViewPort.viewId=='/MyGroupTaskFlow/MyGroupTable'}

  Unfortunately, this currently does not work because there is an error in the JhsNavigationHandlerImpl class we're going to fix in the next release.
  You can apply a work around by creating a subclass of JhsNavigationHandler and replace as follows:

  ' public Sub handleNavigation (FacesContext facesContext, string action,
  The string result)
  {
  String oldPageFragmentId = ControllerContext.getInstance () .getCurrentViewPort () .getViewId ();
  super.handleNavigation (facesContext, action, result);
  String newPageFragmentId = ControllerContext.getInstance () .getCurrentViewPort () .getViewId ();
  If (! oldPageFragmentId.equals (newPageFragmentId))
  {
  JsfUtils.storeOnRequest (JHS_PAGE_CHANGED, Boolean.TRUE);
  }
  }

  To use your subclass, create a custom template for the facesConfig.vm and modify the navigation Manager to use your subclass.

  Steven Davelaar,
  JHeadstart team.

• IBATIS cannot query the tables$ v... Will not pass character $.

  Hello
  
  I hope this is the right forum.
  I'm doing some coding in Java to monitor a lock. I have a built tool that takes SQL and apply logic to a multi tool so so I never write code more to do what I want to do in our systems - just follow the successive executions of this app and intercept the error codes.
  
  in any case, I'm watching the locks in the database under certain conditions, but I'm not able to get Ibatis query on tables of v$.
  If I put ' select * lock in $ v' in Ibatis, it will come out ' select * of vlock' causing an ORA-000942: there is no error table or view.
  
  Real diary of my application:
  
  + DEBUG [hand] (Log4jImpl.java:26) - declaration of preparation {conn-100000}: select nvl ((sélectionnez '1' de vlock vlock2 où 1 = 1 et vlock1.block=1 et vlock1.id1=vlock2.id1 et vlock1.id2=vlock2.id2 et 0 < vlock2.request et rownum = 1), ' 0') as resulting double +.
  + DEBUG [main] (Log4jImpl.java:26) - {pstm-100001} executing statement: select nvl ((sélectionnez '1' de vlock vlock2 où 1 = 1 et vlock1.block=1 et vlock1.id1=vlock2.id1 et vlock1.id2=vlock2.id2 et 0 < vlock2.request et rownum = 1), ' 0') as resulting double +.
  + DEBUG [hand] (Log4jImpl.java:26) - {pstm-100001} parameters: [] +.
  + DEBUG [main] (Log4jImpl.java:26) - {pstm-100001} Types: [] +.
  + [Hand] DEBUG (Log4jImpl.java:26) - return to connection pool 1156596976. +
  + ERROR [main] (Main.java:101) - com.ibatis.common.jdbc.exception.NestedSQLException: +.
  -The error occurred in jdasql.xml.
  -The error occurred when applying a parameter map.
  -Check the - existf_AsdLockCheck2-InlineParameterMap.
  -Check the instruction (failed query).
  -Cause: java.sql.SQLException: ORA-00942: table or view does not exist
  
  It's strange. The sqlmap did this:
  
  Select nvl)
  Select '1'
  v $ lock vlock1
  + v$ lock vlock2 +.
  
  where 1 = 1
  and vlock1.block = 1
  and vlock1.id1 = vlock2.id1
  and vlock1.id2 = vlock2.id2
  and 0 & lt; vlock2. Request
  (and rownum = 1), '0') as a result of the double

  In ibatis, you must double pound (#) and the dollar ($) symbols escape them:

  select nvl(( select '1' from v$$lock vlock2 where 1=1 and vlock1.block=1 and vlock1.id1=vlock2.id1 and vlock1.id2=vlock2.id2 and 0 < vlock2.request and rownum=1), '0') as results
  from dual
  

  Max
  [My Italian blog Oracle | http://oracleitalia.wordpress.com/2010/01/17/supporto-di-xml-schema-in-oracle-xmldb/]

• Why cannot create the table partitioned successfully?

  Why cannot create the table partitioned successfully?

  SQL> create table hr.gps_log_his
  (id number,
  name varchar2(10),
  time date)
  tablespace ts_log_his
  PARTITION BY RANGE (TIME)
  (PARTITION udp_part09110707 VALUES LESS THAN (TO_DATE('09110708','yymmddhh24')),
  PARTITION udp_part09110708 VALUES LESS THAN (TO_DATE('09110709','yymmddhh24')),
  PARTITION udp_part09110709 VALUES LESS THAN (TO_DATE('09110710','yymmddhh24')),
  PARTITION udp_part09110710 VALUES LESS THAN (maxvalue)
  );
  
  (PARTITION udp_part09110707 VALUES LESS THAN (TO_DATE('09110708','yymmddhh24')),
  Error on line 7: 
  ORA-14120: DATE columns did not specify the complete partitioning limits.

  The detailed error message is as follows:

  ORA-14120: incompletely specified partition bound for a DATE column
  
  Cause: An attempt was made to use a date expression whose format does not fully
  (i.e. day, month, and year (including century)) specify a date as a partition bound
  for a DATE column. The format may have been specified explicitly (using TO_DATE()
  function) or implicitly (NLS_DATE_FORMAT).
  
  Action: Ensure that date format used in a partition bound for a DATE column supports
  complete specification of a date (i.e. day, month, and year (including century)). If
  NLS_DATE_FORMAT does not support complete (i.e. including the century) specification
  of the year, use TO_DATE() (e.g. TO_DATE('01-01-1999', 'MM-DD-YYYY') to fully
  express the desired date. 
  

  Action: Change to_date('09110708','yymmddhh24') to
  to_date('2009110708','yyyymmddhh24')

• Why full when I index the table scan

  Can someone quickly tell me why this statement will generate a full table scan if RECEIPT_NO for both tables have a unique index.
  
  
  Select * from agency_ledger where a.RECEIPT_NO in (select receipt_no from temp)
  
  concerning

  Hello

  Two reason I can think
  (1) statistics are not collected or are at a standstill.
  (2) oracle considers the hash join full table scan more appropriate than the nested loop + scan small index.

  Post your explain plain and let us know stats is collected or not.
  In addition, let us know what is the percentage of rows are expected in output compared to the total number of lines.

  Concerning
  Anurag Tibrewal.