Oracle Clustured Index Concept is similar to the denormalized Table

Similar Questions

• Index and tuning: Linking on the same table

  Hello everyone,
  
  I have a PL/SQL mechanism that is based on a select query which links a table (T_RECHRED) on himself.
  
  Here's the SQL...
  
  SELECT
  DR. LSZ, DR. RECH_ID RECH_ID, GS. RECH_ID GS_ID
  Of
  DR. T_RECHRED, T_RECHRED GS
  WHERE
  DR. DATE_FROM GROUP GS. DATE_FROM
  AND DR. BILL_AMOUNT = GS. BILL_AMOUNT *-1
  AND DR. LSZ = GS. LSZ
  AND DR. ALNR = GS. ALNR
  AND DR.CAT! = 'GS' AND GS.CAT = 'GS '.
  ORDER BY
  DR. LSZ CSA, DR. POSITIONSTEXT1 DESC;
  
  As you can see, the table is joined to itself with the following fields...
  
  DATE_FROM, LSZ, ALNR and BILL_AMOUNT (with GS having the dial-up sign)
  
  Both sides of the join (separation) selection is on the cat 'IS GS' c to one side and 'NOT GS' for the other side. The selection of GS catches / selects several hundred thousand lines, while the 'NO GS' selection selects several million lines.
  
  This query (and the accompanying PL/SQL process) works very well...
  
  -Reduces data volumes
  -With the following filter...
  AND GS. RECH_MONTH IN (200809, 200810)
  ... which returns the same amount of data as a select complete!
  
  ... but seems to work constantly on the volume of data.
  
  The really stupid thing is that I had run it once (full volume) but have reshaped the tables and somehow fail to replicate the index configuration that I had before (it's really stupid of me!)
  
  So, my question is the best way to address such a request?
  
  My thoughts are these:
  
  -J' have my filter clause in the right order? The "GS.CAT = 'GS' is the most 'limit' filter so I put this last." Is this correct?
  -Do I have to put the joints in a "INNER JOIN" clause (leaving the "Cat" filter in the WHERE clause), or it makes no difference?
  -Is that the join on the BILL_AMOUNT with the sign reversed (*-1) impact on performance?
  -J' would have separate index (on each join column)? Or I should have an index composed on the join fields all (or almost)?
  -The ORDER BY clause is important (and cannot be deleted) because the PL/SQL depends on a concrete order.
  
  I've been googling and reading my book "Oracle Tuning" but can not find all the information on the links between the tables on themselves.
  
  Advice you can give me on this, or links to the 'case studies' or 'HOWTO', would be welcome.
  
  Thank you very much
  Alan Searle
  
  PS: I tried to run a "explain plan" and that seems to work through OK but no data (as far as I can see) is written to the "PLAN_TABLE. Any ideas what I'm doing wrong here?

  version of database? I suspect 10g or higher.

  explain plan is now written in a global temporary table, it must be explained and look in the session.

• Oracle Text Index

  Hi all
  
  I have a question about the Oracle text Index:
  
  The used Oracle text index after entering data in the CLOB column or before? or anytime.
  
  
  CREATE the INDEX Ora_TXT_Index_ON_Test ON te1 (name) INDEXTYPE IS CTXSYS. CONTEXT;
  
  EXEC DBMS_STATS. GATHER_TABLE_STATS (waterfall of the USER 'TE1' = > TRUE);
  
  concerning

  Hello
  a text index is not used in the normal way. You must use a clause in your SQL statement that is looking for your text by using the keyword Index of contains. An Oracle text Index will be refreshd of way manual or if you specify validation to your index.

  Perhaps this links help
  http://Oracle-text-de.blogspot.co.at/2008/06/scoring-MIT-Oracle-text.html
  http://docs.Oracle.com/CD/B19306_01/text.102/b14218/cqoper.htm

  concerning
  Peter

• Oracle Text Index rebuilt manually or automatically by DEFAULT

  For the following statement:
  
  "The Oracle * text (officially called Oracle and Oracle Intermedia context) utility allows us to analyze through a column of large text and indexes on the words in the column."
  
  Unlike the ordinary tree or bitmap index, index of context, ctxcat and ctxrule Oracle may be * set isn't content update is changed.* like most of Oracle databases will use with standard relational tables ctxcat index, you must decide on a refresh interval.  Oracle provides the SYNC operator for this.  The default value is SY ^ NC = MANUAL and you must manually synchronize the index with CTX_DDL. SYNC_INDEX.
  
  SYNC (MANUAL |) EACH interval 'string ' | ON VALIDATION)]
  
  «As a result, Oracle Text indexes are only useful for removing full table scans when tables are read-only in large part and/or end users don't mind not having 100% search reminder»
  
  -My question: the statement above claims: "Oracle indexes context, ctxcat and ctxrule can be configured to not update the content is changed. '." " Then what is the default setting for updating the index, manual or automatic? For example:
  
  First of all, I created an index like this: create index users_address_idx on users (address) indextype is ctxsys.ctxcat;
  
  Then, I made a few changes on the table such that change the values of the column address for several lines.
  
  The Oracle system will rebuild the ctxcat index automatically?
  
  What does the ' default is SY ^ NC = MANUAL "as shown in the quote?
  
  
  Thank you for helping.
  
  Scott
  

  scottjhn wrote:
  This source: http://www.dba-oracle.com/oracle_tips_like_sql_index.htm States:

  All first upward, please do not use the Web sites which present only part of the information and instead to advertise their services.

  -My question: the statement above claims: "Oracle indexes context, ctxcat and ctxrule can be configured to not update the content is changed. '." " Then what is the default setting for updating the index, manual or automatic? For example:

  First of all, I created an index like this: create index users_address_idx on users (address) indextype is ctxsys.ctxcat;

  Then, I made a few changes on the table such that change the values of the column address for several lines.

  The Oracle system will rebuild the ctxcat index automatically?

  No, the deafult is SYNC = MANUAL
  http://docs.Oracle.com/CD/B28359_01/text.111/b28304/csql.htm#CIHGAAFI
  >

  What does the ' default is SY ^ NC = MANUAL "as shown in the quote?

  This means that the need for the Index to synchronize manually
  http://docs.Oracle.com/CD/B28359_01/text.111/b28304/cddlpkg.htm#i998469

• Creating a unique index frame on a one-to-many table and search

  Hello
  
  I was properly put in place of the full text index on multiple columns on the same table (using the MULTI_COLUMN_DATASTORE preferences), but now I have a situation with a table of one-to-many data collection (with a CF of a lookup table), and I need to get columns through two of these tables. Code example below, several of my chatter after the code block:
  

  CREATE TABLE SUBMISSION
  ( SUBMISSION_ID             NUMBER(10)          NOT NULL,
    SUBMISSION_NAME           VARCHAR2(100)       NOT NULL
  );
   
  CREATE TABLE ADVISOR_TYPE
  ( ADVISOR_TYPE_ID           NUMBER(10)          NOT NULL,
    ADVISOR_TYPE_NAME         VARCHAR2(50)        NOT NULL
  );
    
  CREATE TABLE SUBMISSION_ADVISORS
  ( SUBMISSION_ADVISORS_ID    NUMBER(10)          NOT NULL,
    SUBMISSION_ID             NUMBER(10)          NOT NULL,
    ADVISOR_TYPE_ID           NUMBER(10)          NOT NULL,
    FIRST_NAME                VARCHAR(50)         NULL,
    LAST_NAME                 VARCHAR(50)         NULL,
    SUFFIX                    VARCHAR(20)         NULL
  );
  
  INSERT INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME) VALUES (1, 'Some Research Paper');
  INSERT INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME) VALUES (2, 'Thesis on 17th Century Weather Patterns');
  INSERT INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME) VALUES (3, 'Statistical Analysis on Sunny Days in March');
  
  INSERT INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME) VALUES (1, 'Department Chair');
  INSERT INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME) VALUES (2, 'Department Co-Chair');
  INSERT INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME) VALUES (3, 'Professor');
  INSERT INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME) VALUES (4, 'Associate Professor');
  INSERT INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME) VALUES (5, 'Scientist');
  
  INSERT INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX) VALUES (1,1,2,'John', 'Doe', 'PhD');
  INSERT INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX) VALUES (2,1,2,'Jane', 'Doe', 'PhD');
  INSERT INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX) VALUES (3,2,3,'Johan', 'Smith', NULL);
  INSERT INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX) VALUES (4,2,4,'Magnus', 'Jackson', 'MS');
  INSERT INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX) VALUES (5,3,5,'Williard', 'Forsberg', 'AMS');
   
  COMMIT;

  I want to be able to create a text index to group these fields:
  
  SUBMISSION_ADVISORS. FIRST NAME
  SUBMISSION_ADVISORS. LAST_NAME
  SUBMISSION_ADVISORS. SUFFIX
  ADVISOR_TYPE. ADVISOR_TYPE_NAME
  
  I looked at DETAIL_DATASTORE and USER_DATASTORE, but examples of Oracle Docs for DETAIL_DATASTORE leave me a little confused. It seems that this should be fairly simple.
  
  Ideally, I try to avoid creating new columns and keeping a minimum shutter adjustments. But I'm open to any suggestion. Thanks for your time and your thoughts.
  
  -Jamie

  I would create a procedure that creates a virtual with labels document, what is the multi_column_datatstore behind the scenes. Then I would like to use this procedure in a user_datastore, so the result is the same for several tables as a multi_column_datastore for a table. I would use auto_section_group or another type of Group of sections, so that you can search from WITHIN as with the multi_column_datastore. Please see the demo below.

  SCOTT@orcl_11gR2> -- tables and data that you provided:
  SCOTT@orcl_11gR2> CREATE TABLE SUBMISSION
    2  ( SUBMISSION_ID           NUMBER(10)          NOT NULL,
    3    SUBMISSION_NAME           VARCHAR2(100)          NOT NULL
    4  )
    5  /
  
  Table created.
  
  SCOTT@orcl_11gR2> CREATE TABLE ADVISOR_TYPE
    2  ( ADVISOR_TYPE_ID           NUMBER(10)          NOT NULL,
    3    ADVISOR_TYPE_NAME      VARCHAR2(50)          NOT NULL
    4  )
    5  /
  
  Table created.
  
  SCOTT@orcl_11gR2> CREATE TABLE SUBMISSION_ADVISORS
    2  ( SUBMISSION_ADVISORS_ID      NUMBER(10)          NOT NULL,
    3    SUBMISSION_ID           NUMBER(10)          NOT NULL,
    4    ADVISOR_TYPE_ID           NUMBER(10)          NOT NULL,
    5    FIRST_NAME           VARCHAR(50)          NULL,
    6    LAST_NAME           VARCHAR(50)          NULL,
    7    SUFFIX                VARCHAR(20)          NULL
    8  )
    9  /
  
  Table created.
  
  SCOTT@orcl_11gR2> INSERT ALL
    2  INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME)
    3    VALUES (1, 'Some Research Paper')
    4  INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME)
    5    VALUES (2, 'Thesis on 17th Century Weather Patterns')
    6  INTO SUBMISSION (SUBMISSION_ID, SUBMISSION_NAME)
    7    VALUES (3, 'Statistical Analysis on Sunny Days in March')
    8  SELECT * FROM DUAL
    9  /
  
  3 rows created.
  
  SCOTT@orcl_11gR2> INSERT ALL
    2  INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME)
    3    VALUES (1, 'Department Chair')
    4  INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME)
    5    VALUES (2, 'Department Co-Chair')
    6  INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME)
    7    VALUES (3, 'Professor')
    8  INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME)
    9    VALUES (4, 'Associate Professor')
   10  INTO ADVISOR_TYPE (ADVISOR_TYPE_ID, ADVISOR_TYPE_NAME)
   11    VALUES (5, 'Scientist')
   12  SELECT * FROM DUAL
   13  /
  
  5 rows created.
  
  SCOTT@orcl_11gR2> INSERT ALL
    2  INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX)
    3    VALUES (1,1,2,'John', 'Doe', 'PhD')
    4  INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX)
    5    VALUES (2,1,2,'Jane', 'Doe', 'PhD')
    6  INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX)
    7    VALUES (3,2,3,'Johan', 'Smith', NULL)
    8  INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX)
    9    VALUES (4,2,4,'Magnus', 'Jackson', 'MS')
   10  INTO SUBMISSION_ADVISORS (SUBMISSION_ADVISORS_ID, SUBMISSION_ID, ADVISOR_TYPE_ID, FIRST_NAME, LAST_NAME, SUFFIX)
   11    VALUES (5,3,5,'Williard', 'Forsberg', 'AMS')
   12  SELECT * FROM DUAL
   13  /
  
  5 rows created.
  
  SCOTT@orcl_11gR2> -- constraints presumed based on your description:
  SCOTT@orcl_11gR2> ALTER TABLE submission ADD CONSTRAINT submission_id_pk
    2    PRIMARY KEY (submission_id)
    3  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> ALTER TABLE advisor_type ADD CONSTRAINT advisor_type_id_pk
    2    PRIMARY KEY (advisor_type_id)
    3  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> ALTER TABLE submission_advisors ADD CONSTRAINT submission_advisors_id_pk
    2    PRIMARY KEY (submission_advisors_id)
    3  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> ALTER TABLE submission_advisors ADD CONSTRAINT submission_id_fk
    2    FOREIGN KEY (submission_id) REFERENCES submission (submission_id)
    3  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> ALTER TABLE submission_advisors ADD CONSTRAINT advisor_type_id_fk
    2    FOREIGN KEY (advisor_type_id) REFERENCES advisor_type (advisor_type_id)
    3  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> -- resulting data:
  SCOTT@orcl_11gR2> COLUMN submission_name FORMAT A45
  SCOTT@orcl_11gR2> COLUMN advisor      FORMAT A40
  SCOTT@orcl_11gR2> SELECT s.submission_name,
    2           a.advisor_type_name || ' ' ||
    3           sa.first_name || ' ' ||
    4           sa.last_name || ' ' ||
    5           sa.suffix AS advisor
    6  FROM   submission_advisors sa,
    7           submission s,
    8           advisor_type a
    9  WHERE  sa.advisor_type_id = a.advisor_type_id
   10  AND    sa.submission_id = s.submission_id
   11  /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Some Research Paper                           Department Co-Chair John Doe PhD
  Some Research Paper                           Department Co-Chair Jane Doe PhD
  Thesis on 17th Century Weather Patterns       Professor Johan Smith
  Thesis on 17th Century Weather Patterns       Associate Professor Magnus Jackson MS
  Statistical Analysis on Sunny Days in March   Scientist Williard Forsberg AMS
  
  5 rows selected.
  
  SCOTT@orcl_11gR2> -- procedure to create virtual documents:
  SCOTT@orcl_11gR2> CREATE OR REPLACE PROCEDURE submission_advisors_proc
    2    (p_rowid IN           ROWID,
    3       p_clob     IN OUT NOCOPY CLOB)
    4  AS
    5  BEGIN
    6    FOR r1 IN
    7        (SELECT *
    8         FROM      submission_advisors
    9         WHERE  ROWID = p_rowid)
   10    LOOP
   11        IF r1.first_name IS NOT NULL THEN
   12          DBMS_LOB.WRITEAPPEND (p_clob, 12, '');
   13          DBMS_LOB.WRITEAPPEND (p_clob, LENGTH (r1.first_name), r1.first_name);
   14          DBMS_LOB.WRITEAPPEND (p_clob, 13, '');
   15        END IF;
   16        IF r1.last_name IS NOT NULL THEN
   17          DBMS_LOB.WRITEAPPEND (p_clob, 11, '');
   18          DBMS_LOB.WRITEAPPEND (p_clob, LENGTH (r1.last_name), r1.last_name);
   19          DBMS_LOB.WRITEAPPEND (p_clob, 12, '');
   20        END IF;
   21        IF r1.suffix IS NOT NULL THEN
   22          DBMS_LOB.WRITEAPPEND (p_clob, 8, '');
   23          DBMS_LOB.WRITEAPPEND (p_clob, LENGTH (r1.suffix), r1.suffix);
   24          DBMS_LOB.WRITEAPPEND (p_clob, 9, '');
   25        END IF;
   26        FOR r2 IN
   27          (SELECT *
   28           FROM   submission
   29           WHERE  submission_id = r1.submission_id)
   30        LOOP
   31          DBMS_LOB.WRITEAPPEND (p_clob, 17, '');
   32          DBMS_LOB.WRITEAPPEND (p_clob, LENGTH (r2.submission_name), r2.submission_name);
   33          DBMS_LOB.WRITEAPPEND (p_clob, 18, '');
   34        END LOOP;
   35        FOR r3 IN
   36          (SELECT *
   37           FROM   advisor_type
   38           WHERE  advisor_type_id = r1.advisor_type_id)
   39        LOOP
   40          DBMS_LOB.WRITEAPPEND (p_clob, 19, '');
   41          DBMS_LOB.WRITEAPPEND (p_clob, LENGTH (r3.advisor_type_name), r3.advisor_type_name);
   42          DBMS_LOB.WRITEAPPEND (p_clob, 20, '');
   43        END LOOP;
   44    END LOOP;
   45  END submission_advisors_proc;
   46  /
  
  Procedure created.
  
  SCOTT@orcl_11gR2> SHOW ERRORS
  No errors.
  SCOTT@orcl_11gR2> -- examples of virtual documents that procedure creates:
  SCOTT@orcl_11gR2> DECLARE
    2    v_clob  CLOB := EMPTY_CLOB();
    3  BEGIN
    4    FOR r IN
    5        (SELECT ROWID rid FROM submission_advisors)
    6    LOOP
    7        DBMS_LOB.CREATETEMPORARY (v_clob, TRUE);
    8        submission_advisors_proc (r.rid, v_clob);
    9        DBMS_OUTPUT.PUT_LINE (v_clob);
   10        DBMS_LOB.FREETEMPORARY (v_clob);
   11    END LOOP;
   12  END;
   13  /
  JohnDoePhDSome
  Research PaperDepartment Co-Chair
  JaneDoePhDSome
  Research PaperDepartment Co-Chair
  JohanSmithThesis on 17th Century
  Weather PatternsProfessor
  MagnusJacksonMSThe
  sis on 17th Century Weather PatternsAssociate
  Professor
  WilliardForsbergAMS
  

  Statistical Analysis on Sunny Days in

  MarchScientist
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> -- user_datastore that uses procedure:
  SCOTT@orcl_11gR2> BEGIN
    2    CTX_DDL.CREATE_PREFERENCE ('sa_datastore', 'USER_DATASTORE');
    3    CTX_DDL.SET_ATTRIBUTE ('sa_datastore', 'PROCEDURE', 'submission_advisors_proc');
    4  END;
    5  /
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> -- index (on optional extra column) that uses user_datastore and section group:
  SCOTT@orcl_11gR2> ALTER TABLE submission_advisors ADD (any_column VARCHAR2(1))
    2  /
  
  Table altered.
  
  SCOTT@orcl_11gR2> CREATE INDEX submission_advisors_idx
    2  ON submission_advisors (any_column)
    3  INDEXTYPE IS CTXSYS.CONTEXT
    4  PARAMETERS
    5    ('DATASTORE     sa_datastore
    6        SECTION GROUP     CTXSYS.AUTO_SECTION_GROUP')
    7  /
  
  Index created.
  
  SCOTT@orcl_11gR2> -- what is tokenized, indexed, and searchable:
  SCOTT@orcl_11gR2> SELECT token_text FROM dr$submission_advisors_idx$i
    2  /
  
  TOKEN_TEXT
  ----------------------------------------------------------------
  17TH
  ADVISOR_TYPE_NAME
  AMS
  ANALYSIS
  ASSOCIATE
  CENTURY
  CHAIR
  CO
  DAYS
  DEPARTMENT
  DOE
  FIRST_NAME
  FORSBERG
  JACKSON
  JANE
  JOHAN
  JOHN
  LAST_NAME
  MAGNUS
  MARCH
  PAPER
  PATTERNS
  PHD
  PROFESSOR
  RESEARCH
  SCIENTIST
  SMITH
  STATISTICAL
  SUBMISSION_NAME
  SUFFIX
  SUNNY
  THESIS
  WEATHER
  WILLIARD
  
  34 rows selected.
  
  SCOTT@orcl_11gR2> -- sample searches across all data:
  SCOTT@orcl_11gR2> VARIABLE search_string VARCHAR2(100)
  SCOTT@orcl_11gR2> EXEC :search_string := 'professor'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> SELECT s.submission_name,
    2           a.advisor_type_name || ' ' ||
    3           sa.first_name || ' ' ||
    4           sa.last_name || ' ' ||
    5           sa.suffix AS advisor
    6  FROM   submission_advisors sa,
    7           submission s,
    8           advisor_type a
    9  WHERE  CONTAINS (sa.any_column, :search_string) > 0
   10  AND    sa.advisor_type_id = a.advisor_type_id
   11  AND    sa.submission_id = s.submission_id
   12  /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Thesis on 17th Century Weather Patterns       Professor Johan Smith
  Thesis on 17th Century Weather Patterns       Associate Professor Magnus Jackson MS
  
  2 rows selected.
  
  SCOTT@orcl_11gR2> EXEC :search_string := 'doe'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Some Research Paper                           Department Co-Chair John Doe PhD
  Some Research Paper                           Department Co-Chair Jane Doe PhD
  
  2 rows selected.
  
  SCOTT@orcl_11gR2> EXEC :search_string := 'paper'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Some Research Paper                           Department Co-Chair John Doe PhD
  Some Research Paper                           Department Co-Chair Jane Doe PhD
  
  2 rows selected.
  
  SCOTT@orcl_11gR2> -- sample searches within specific columns:
  SCOTT@orcl_11gR2> EXEC :search_string := 'chair'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> SELECT s.submission_name,
    2           a.advisor_type_name || ' ' ||
    3           sa.first_name || ' ' ||
    4           sa.last_name || ' ' ||
    5           sa.suffix AS advisor
    6  FROM   submission_advisors sa,
    7           submission s,
    8           advisor_type a
    9  WHERE  CONTAINS (sa.any_column, :search_string || ' WITHIN advisor_type_name') > 0
   10  AND    sa.advisor_type_id = a.advisor_type_id
   11  AND    sa.submission_id = s.submission_id
   12  /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Some Research Paper                           Department Co-Chair John Doe PhD
  Some Research Paper                           Department Co-Chair Jane Doe PhD
  
  2 rows selected.
  
  SCOTT@orcl_11gR2> EXEC :search_string := 'phd'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> SELECT s.submission_name,
    2           a.advisor_type_name || ' ' ||
    3           sa.first_name || ' ' ||
    4           sa.last_name || ' ' ||
    5           sa.suffix AS advisor
    6  FROM   submission_advisors sa,
    7           submission s,
    8           advisor_type a
    9  WHERE  CONTAINS (sa.any_column, :search_string || ' WITHIN suffix') > 0
   10  AND    sa.advisor_type_id = a.advisor_type_id
   11  AND    sa.submission_id = s.submission_id
   12  /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Some Research Paper                           Department Co-Chair John Doe PhD
  Some Research Paper                           Department Co-Chair Jane Doe PhD
  
  2 rows selected.
  
  SCOTT@orcl_11gR2> EXEC :search_string := 'weather'
  
  PL/SQL procedure successfully completed.
  
  SCOTT@orcl_11gR2> SELECT s.submission_name,
    2           a.advisor_type_name || ' ' ||
    3           sa.first_name || ' ' ||
    4           sa.last_name || ' ' ||
    5           sa.suffix AS advisor
    6  FROM   submission_advisors sa,
    7           submission s,
    8           advisor_type a
    9  WHERE  CONTAINS (sa.any_column, :search_string || ' WITHIN submission_name') > 0
   10  AND    sa.advisor_type_id = a.advisor_type_id
   11  AND    sa.submission_id = s.submission_id
   12  /
  
  SUBMISSION_NAME                               ADVISOR
  --------------------------------------------- ----------------------------------------
  Thesis on 17th Century Weather Patterns       Professor Johan Smith
  Thesis on 17th Century Weather Patterns       Associate Professor Magnus Jackson MS
  
  2 rows selected.
  

• change the source tables in the materialized view

  If I change the name of the source table in a materialized view, I have to delete and recreate the MV? For example, My MV uses a table from a DBlink. Instead I want to physically copy the table in the schema, and then create the MV using the local table, then change MV to use the remote table and I expect to start refreshing the MV for incremental data. Can I do it?

  No, you can't.  Oracle has no way of knowing that the modified table (name) is identical to the original table.

  Hemant K Collette

• Is there a way took care in the reorg table sys.job$ (and its indexes)?  (Oracle 9)

  I have an old database that has a table of great sys.job$ and the large index on it. (indices are just standard installed indexes nothing we did)    However the table has very little data in it now, only 22 rows.   Yet between the table and index is > 1 GB in size.

  The enforcement team asked me to reorg or shrink the table sys.job$ and explained its large size is probably due to the fact that they believe some process went wrong turned for years resulting in job creation, but his long since been cleaned.

  What motivates is to save space in the SYSTEM tablespace and possibly help some query performance.

  I know that in general its forbidden to directly manipulate the sys objects (such as truncation, insert, etc. with the exception of sys.aud$).

  Y at - it a taken way supported to reduce the size of this table.  Any document referencing.

  Yes, there is a way taken in charge.

  It's called "Recreate the database"

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

  Sybrand Bakker

  Senior Oracle DBA

• Text of Oracle installed but cannot find anything through the full-text index

  Hello
  
  I have an Oracle 10 G (10.2.0.4) 64-bit on a Windows 2003r2 64 bit (sp2) database. I also installed the Oracle text:
  
  Oracle Text
  VALID 10.2.0.4.0
  
  
  Then, I created some preferences and created the index of full text:
  create index afindex on docs (document) indextype is ctxsys.context parameters ('storage gdoc_store SYNC (ON COMMIT)');
  
  so with the syn on validation, it should immediately be viewed in the index.
  
  I for example in 1 table 6 documents (word, pdf,...), the other has more documents then 64000 and 3rd over 425000.
  
  In any of the 3 above, research on text gives result after the index is created. Not in the developer program and in sqlplus.
  
  Search sql, for example:
  
  Select the id from docs where contains (doc, 'hello') > 0;
  
  under the c:\windows\temp, I see on 380files with drgibXXXXX, so it does not index them?
  
  What could be the problem?
  
  Note that I have a lot of other databases, where I also use Oracle text and there is no problem, only difference is the 32 <>- 64-bit.
  
  error in ctx_index_error is:
  
  DRG-11207: User filter command came out with the State 1
  
  Published by: user12155961 on 15-apr-2010 05:33

  AUTO_FILTER on MS Windows x 86-64-bit, see the Note 309154.1

  You have several Oracle_Homes on this server and this is a RAC cluster?
  Export and download the structure of keys to register MS under Wow6432Node - oracle.

  -Edwin

• Index on the seeding Table Oracle Applications

  Hi all
  
  Can I create an index on a column to the table of the seeds of the oracle applications. If so, then, what are the implications? If not, what are the reasons... Can anyone give some input on this...
  
  Why I need this...
  
  I have a validation on the column 'JOURNAL_COMMENT' in Table 'IC_JRNL_MST' in my custom Interface program. It takes 2.5 minutes to complete the validation of a record. I created the index on this column in the process of development and validation time is reduced to less than a second. So, I need to create this index on an instance of production to reduce the time of validation.
  
  can I do it? (create the index on the production instance) forgot to mention... I can't ignore that particular column validation...
  
  Thanks in advance...
  Melanie

  You can certainly create indexes custom table seeded so this improvement in performance has to offer. I did it several times.
  As you know, a new index is provided with a cost (storage and maintenance), but it will be significantly smaller than your gains.
  A new index will not harm any validations / business logic.
  Just keep in mind that if you or a patch happens to drop and re-create the table, you must remember to rebuild the index.
  Hope that answers your question

  Sandeep Gandhi
  Independent consultant
  513-325-9026.

• (9.2.0.5.0) 9i - Oracle Text - Indexing of Oracle files on the FTP server

  I'm using Oracle 9i (9.2.0.5.0) and I cannot upgrade to a newer version of Oracle DB.
  I am new to this technology, and I have not tried it yet myself.
  
  I was reading some articles, documents or references on Oracle text technology and I find that Oracle text must be able to create an index of context on files residing on the FTP server.
  I also discovered that, for this purpose, a 'URL_DATASTORE' should be used.
  
  I'd be happy if someone can answer my question before I decide to start using this technology:
  Is there a limitation that I should be informed when creating index of context on files residing on the FTP server? (file size limit, limitation of the types of files supported)
  -In the creation of the index process are the files indexed, downloaded and copied in the Oracle database permanently or only temporarily until the index is created?
  -Everything is of incremental indexing (when I add new files in the data store that I don't have to rebuild the entire index)?
  There there a formula between context index disk size and the disk size indexed files?
  
  Kind regards
  
  Michal

  Is there a limitation that I should be informed when creating index of context on files residing on the FTP server? (file size limit, limitation of the types of files supported)
  Maximum file size is configurable up to 2 GB. No limitation on the file type from the data store itself, but if you want to process binary file list filter suported file formats will apply (see the appendix in the Administrator's guide)

  -In the creation of the index process are the files indexed, downloaded and copied in the Oracle database permanently or only temporarily until the index is created?
  That temporarily

  -Everything is of incremental indexing (when I add new files in the data store that I don't have to rebuild the entire index)?
  The question, I suspect that you see this as a robot - you expect to provide the address of an FTP site and have it look for all documents. This isn't how it works. Instead, you must place all of the URLS in a table, and text will index these URLS (and only these URLs)

  If new files are added, you must reorganize somehow having the new lines added to your table. Then the text will do an incremental update, it will not have to rebuild the entire index.

  There there a formula between context index disk size and the disk size indexed files?
  It varies a lot depending on the data types and indexing of selected options, but a typical result is that the index will be 40% of the total size of the file. However, if the documents are in the format (for example, Word, PDF) the percentage will be much smaller.

• doubt of oracle documentation index

  I was going through the topic index in the doc: 'Oracle server Concepts' and the quote from the article:

  CREATE INDEX employees_ix

  ON employees (last_name, job_id, salary);

  Queries that access all three columns, only the last_name column, or only the last_name and job_id columns use this index. In this example, the queries that do not access the last_name column do not use the index.

  I wanted to just above clarity. He say this index is used for queries whose access:

  (1) last_name

  (2) last_name, job_id

  (3) last_name, job_id, salary

  I wanted to know if an index is used when a query that accesses:

  (1) last_name, salary

  (2) wage, last_name

  (3) job_id, last_name

  The index will be used if the order of the columns in the query is blurred.

  Yet you can tell what that means: "when the main column has very low cardinality.

  Seriously? You do not find in the same doc you took quote you?

  The right to the paragraph above the one you cited has a link to "cardinality". Just click on it and it will lead you to the explanation of the glossary.

  I have provided a link to the doc - it just search "cardinality" and click on it.

• A different function is created instead of the expected (table Index instead of initialize array) Labview - a 8.5

  Hey all,.

  I have a really strange behavior here. I'm using LabView 8.5. I open a white VI and try to use the function "initialize the array.

  No matter where and how I find (using search functions, or by accessing the 7.x-> table-> table initialize function), when I drag and drop it off at my VI, what I get is "Array Index" instead!

  Even when I hover over the icon table inside the palette is initialized, with aid switched on (Ctrl + H), what I see is the help page for table of Index. It's as if somehow the index table replaced function Initialize array entirely, with the exception of the simple icon in the palette...

  I tried to restart Labview and my computer nothing works.

  Someone at - he never experience a similar problem? that means, one different function other than for being created. I have attached a screenshot.

  Thank you

  -Anne Marie

  Thanks for your replies.

  My palette is screwed a bit isn't it? Most likely because the installation I chose a bunch of older versions in favor... and I regret it now.

  Funny enough, during the search in the functions that it only brings me version 7.x of functions of table etc... but I can manually find the standard in my palette, and of course, version 8.5 standard functions seem to work...

  I need to finally do an install of cean, but for now, it's all good!

  Thank you

  Anne Marie

• When Oracle make Index Fast full Scan?

  Hi all

  In this case, Oracle index full scan. Please give the solution with at least two example.

  Thank you

  Oops,

  Spleen it was INDEX FAST FULL SCAN. Then index must be greater:

  SQL > create table tbl in select * from dba_objects;

  Table created.

  SQL > alter table tbl
  2 edit object_name not null;

  Modified table.

  SQL > create index tbl_idx1 on tbl (object_name);

  The index is created.

  SQL > explain the plan for
  2. Select object_name in tbl;

  He explained.

  SQL > select * from table (dbms_xplan.display);

  PLAN_TABLE_OUTPUT
  ----------------------------------------------------------------------------------
  Hash value of plan: 2675010997

  ---------------------------------------------------------------------------------
  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
  ---------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |          | 69022 |  4448K |   109 (1) | 00:00:02 |
  |   1.  FULL RESTRICTED INDEX SCAN FAST | TBL_IDX1 | 69022 |  4448K |   109 (1) | 00:00:02 |
  ---------------------------------------------------------------------------------

  Note
  -----

  PLAN_TABLE_OUTPUT
  ----------------------------------------------------------------------------------
  -dynamic sample used for this survey (level = 2)

  12 selected lines.

  SQL >

  SY.

• Oracle text index - unexpected behavior

  We have a SEARCH_TABLE (in Oracle 12.1.0.1.0) with a couple of files (actually about 10,000,000 records):

  ID ADDRESS

  1     | WIMPEL | 57. 9733BK | GRONINGEN |

  2     | JOHAN WILSSTRAAT | 7 ||| 1333PV | ALMERE |

  3     | ABRAHAM KUYPERHOF | 10. 8091XN | WEZEP |

  
  

  To support research on the table addresses, we apply an Oracle text index:

  create index ST_CTX1 on SEARCH_TABLE (address)

  indexType is ctxsys.context

  parameters ("DATASTORE CTXSYS. DEFAULT_DATASTORE');

  
  

  Our research focuses on whole words (without jokers). When searching through the data, it usually comes back with the correct results.

  
  

  SELECT THE ID

  OF SEARCH_TABLE

  WHERE CONTAINS (ADDRESS, 'GRÖNING') > 0

  ;

  Returns nothing, that is correct. Once the search argument 'GRÖNING' is replaced by 'GRONINGEN', ID 1 is correctly selected. According to this behavior, the following query returns no records:

  SELECT THE ID

  OF SEARCH_TABLE

  WHERE CONTAINS (ADDRESS, 'ABR & KUYPERHOF') > 0

  ;

  
  

  Surprisingly, however, the following query returns record ID 3:

  SELECT THE ID

  OF SEARCH_TABLE

  WHERE CONTAINS (ADDRESS, ' A & KUYPERHOF ') > 0

  ;

  (Even if data does not contain the complete word 'A'). This unexpected behavior only seems to occur when you use "A" as the initial character.

  The following query (with the search starting with the character 'J' argument) returns no data. Which is the expected behavior.

  SELECT the ID

  OF SEARCH_TABLE

  WHERE CONTAINS (ADDRESS, 'J & WILSSTRAAT') > 0

  ;

  Anyone has an idea why the text index returns with A situations? Any ideas on how to solve this problem are appreciated.

  Mark

  According to the list of empty words by default in 11.2, the letters a, d, i, s, and t are listed, so would be removed from the wanted list of tokens.  Thus, 'A & WILSSTRAAT' becomes '& WILSTRAAT' and search text line with a single word.  'j' is not an empty word, so it is considered to be a token is valid and is not in your tables.  Look in CTXSYS. CTX_STOPWORDS to see what you have.

• Is there a website similar to the old Central stock Adobe, where individuals would download actions for other users to download?

  Is there a website similar to the old Central stock Adobe, where individuals would download actions for other users to download?

  You should probably ask in the forum for the specific program

  If you start the https://forums.adobe.com/welcome Forums Index

  You will be able to select a forum for the specific Adobe products you use

  Click on the symbol "arrow down" on the right (where it says all communities) to open the drop-down list and scroll