Indexing of binary XML data exposed by using a relational view
Hello
I would like a forefinger XMLType columns. 11 GR 2, it is possible, but in paragraph 12.1?
I give you my script to test.
Thanks in advance
-Server Oracle 12 c Enterprise Edition Release 12.1.0.1.0 - 64 bit Production
CREATE TABLE t_col_xml
(nom_doc VARCHAR2 (30) PRIMARY KEY, col_xml XMLType)
XMLTYPE AS XML BINARY col_xml STORE;
INSERT INTO t_col_xml (nom_doc, col_xml) VALUES
("compagnie.xml",
((XMLType.CREATEXML)
' <? XML version = "1.0" encoding = "UTF-8"? >
< date_crea = "2010-08-30" company >
< comp > AB < / comp >
< driver >
< patent pilot = "PL - 1" >
< name > Benoit < / name >
< name > Sarda < / name >
< salary > 4000.20 < / salary >
< / driver >
< patent pilot = "PL2" >
< name > Romaric < / name >
< name > Benech < / name >
< salary > 5000.40 < / salary >
< / driver >
< / drivers >
Air Blagnac < nomComp > < / nomComp >
(((< / company > ')));
CREATE or replace VIEW comp_detail_vue AS
SELECT a.comp, b.*
OF t_col_xml.
XMLTABLE ('/ company ' ADOPTION col_xml)
Comp VARCHAR2 COLUMNS (6) PATH "comp."
PILS XMLType PATH ' pilot/pilot'),
XMLTABLE ('pilot' ADOPTION a.pils
Patent of VARCHAR2 COLUMNS (6) "@brevet."
prepil PATH VARCHAR2 (20) "first name",
nompil PATH VARCHAR2 (20) "name."
b salary NUMBER PATH "wages");
Col nompil FORMAT A12
ALTER SESSION SET nls_numeric_characters = ".";
SELECT * FROM comp_detail_vue;
/*
MODEL OF PATENT PREPIL NOMPIL SALARY
------ ------ -------------------- ------------ ----------
AB-1 PL Benoit Sarda 4000.2
AB PL2 Romaric Benech 5000.4
*/
-That is the problem
SELECT DBMS_XMLSTORAGE_MANAGE.getSIDXDefFromView ('COMP_DETAIL_VUE')
FROM DUAL;
/*
ERROR:
ORA-06502: PL/SQL: error Numurique or error on a value: to wildcard cha¯ne pad printing too
small
ORA-06512: O "XDB. DBMS_XMLSTORAGE_MANAGE', line 2667
ORA-06512: O "XDB. DBMS_XMLSTORAGE_MANAGE', line 2969
*/
Hmm..., same result in 12.1.0.2.0. Overall it seems to be a bug although I have only seen 'getSIDXDefFromView', although always in the XMLDB Developer's Guide, eliminated in the packages (http://docs.oracle.com/database/121/ARPLS/d_xmlstorage_man.htm#ARPLS73588) reference.
That said perhaps what follows is to help you to do it manually:
DROP TABLE t_col_xml is serving;
CREATE TABLE t_col_xml
(nom_doc VARCHAR2 (30) PRIMARY KEY, col_xml XMLType)
XMLTYPE AS XML BINARY col_xml STORE;
INSERT INTO t_col_xml (nom_doc, col_xml) VALUES
("compagnie.xml",
((XMLType.CREATEXML)
'
') ) );
CREATE or replace VIEW comp_detail_vue AS
SELECT a.comp, b.brevet, b.prepil, b.nompil, b.salaire
OF t_col_xml.
XMLTABLE ('/ company ' ADOPTION col_xml)
Comp VARCHAR2 COLUMNS (6) PATH "comp."
PILS XMLType PATH ' pilot/pilot'),
XMLTABLE ('pilot' ADOPTION a.pils
Patent of VARCHAR2 COLUMNS (6) "@brevet."
prepil PATH VARCHAR2 (20) "first name",
nompil PATH VARCHAR2 (20) "name."
b salary NUMBER PATH "wages");
Col nompil FORMAT A12
the value of 10000 long
' ALTER SESSION SET nls_numeric_characters =".";
SELECT * FROM comp_detail_vue;
SELECT DBMS_XMLSTORAGE_MANAGE.getSIDXDefFromView ('COMP_DETAIL_VUE')
FROM DUAL;
/*
CALL DBMS_XMLINDEX.dropParameter ('company');
CALL DBMS_XMLINDEX.registerParameter)
'company. '
DBMS_XMLSTORAGE_MANAGE.getSIDXDefFromView ('COMP_DETAIL_VUE'));
*/
CREATE INDEX i_col_xml
ON t_col_xml (col_xml)
INDEXTYPE IS "XDB". "" XMLINDEX.
PARAMETERS ('GROUP compagnie_group
XMLTABLE comp_sxi
(tablespace users)
"/ company"
COLUMNS
model VARCHAR2 (6) PATH "mock-up",.
PILS XMLType "drivers/driver" VIRTUAL PATH
XMLTABLE comp_pils_sxi
(tablespace users)
"pilot" PASSER-BY pils
COLUMNS
patent VARCHAR2 (6) PATH "@brevet".
prepil VARCHAR2 (20) PATH "first name",
nompil VARCHAR2 (20) PATH "name",
salary NUMBER PATH 'salary'
');
explain plan for
SELECT * FROM comp_detail_vue;
SELECT * FROM TABLE (dbms_xplan.display);
--------------------
OUTPUT
--------------------
table deleted T_COL_XML.
table created T_COL_XML.
1 inserted rows.
view COMP_DETAIL_VUE created.
session the changed VALUE.
MODEL OF PATENT PREPIL NOMPIL SALARY
------ ------ -------------------- ------------ ----------
AB-1 PL Benoit Sarda 4000.2
AB PL2 Romaric Benech 5000.4
Error at startup to the line: 48 in command.
SELECT DBMS_XMLSTORAGE_MANAGE.getSIDXDefFromView ('COMP_DETAIL_VUE')
OF THE DOUBLE
Error report-
SQL error: ORA-06502: PL/SQL: digital or value error: character string buffer too small
ORA-06512: at "XDB". DBMS_XMLSTORAGE_MANAGE', line 2667
ORA-06512: at "XDB". DBMS_XMLSTORAGE_MANAGE', line 2969
06502 00000 - "PL/SQL: digital error or the value of %s.
* Cause:
* Action:
index created I_COL_XML.
plan FOR successful.
PLAN_TABLE_OUTPUT
-----------------------------------------------------------------------------------------------------------------
Hash value of plan: 2425154757
-----------------------------------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
-----------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1. 1075 | 2 (0) | 00:00:01 |
| 1. NESTED LOOPS | | 1. 1075 | 2 (0) | 00:00:01 |
| 2. NESTED LOOPS | | 2. 1075 | 2 (0) | 00:00:01 |
| 3. NESTED LOOPS | | 1. 531. 2 (0) | 00:00:01 |
| 4. FULL RESTRICTED INDEX SCAN FAST | SYS_C009751 | 1. 12. 2 (0) | 00:00:01 |
| 5. TABLE ACCESS BY ROWID INDEX BATCH | COMP_SXI | 1. 519. 0 (0) | 00:00:01 |
|* 6 | INDEX RANGE SCAN | SYS91605_91606_RID_IDX | 1. | 0 (0) | 00:00:01 |
|* 7 | INDEX RANGE SCAN | SYS91605_91609_PKY_IDX | 2. | 0 (0) | 00:00:01 |
| 8. TABLE ACCESS BY INDEX ROWID | COMP_PILS_SXI | 2. 1088. 0 (0) | 00:00:01 |
-----------------------------------------------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
6 - access ("T_COL_XML". ROWID = "SYS_SXI_2." ("' RID ')
7 - access("SYS_SXI_2".") KEY '= 'SYS_SXI_3'.' PKEY")
Note
-----
-the dynamic statistics used: dynamic sampling (level = 2)
25 selected lines
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response
from xmltable)
"/ FAX/EMAILOG.
by the way xmlparse (document loc_xml)
the columns id number way "ID".
, path of varchar2 (250) response 'RESPONSE '.
)
) v
on (e.empno = v.id)
When matched then update
Set e.fax_response = v.response
;
end;
/
But there is no value added by using these temporary tables if you are not at least an intermediate XMLType column (storage preferably binary XML).
-What is the input XML code?
-What is the version of db?
-
Can I create an XSD from XML data into a CLOB?
Environment:
Oracle 11.2.0.3 EE on Solaris.
Highly an XML newbie so please be nice!
I spent the past few days pouring through the documentation and various articles, including this one, but... I need help.
I am trying to extract XML data stored in a CLOB and produce a flat file for the user's consumption.
They sent me what they think is the XSD for XML data, but when I look at the data in the CLOB I don't see tags in the XSD.
I would like to produce a XSD based on real data to compare with what they sent.
Is this possible?
I am able to query XML data using the tags that I see in data using XMLTable and it works fine.
Any help is greatly appreciated.
-gary
Welcome to the side of the world, where you're going to love it and curse, like any other piece of XML technology.
So if I understand correctly, the scope of your operation is to extract information from an XML file and then write this information to the disk, correct?
A few questions
-Why did the XML stored in a CLOB instead of an XMLType column? Without knowing the history of the system, it is a pertinent question.
-What size are the XML? I ask this question, it is because when the XML is stored in the columns of XMLType (relational structure object or XML BINARY SECUREFILE format), then Oracle can parse the XML much more easily when it is stored as a CLOB. If the XML is small enough, you can see no difference in performance between the two.
The Oracle DB itself has no built in the ability to generate a schema from an XML file. To do this, you need to use a third-party tool that has this feature in. For example, XML Spy can do. Other tools as well, but that's what comes to mind first is what I use. The only thing to remember is that the scheme he built is only an XML instance. Other XML instances can be different and not valid against the schema you generated, but still valid against the original schema unknown.
You can save the schema in the database and then use the XML to create an XMLType instance related to the schema and then validate the XML in this way. An example XML DB FAQ and here's another one Re: validation of XML schema
Hope that helps you continue.
-
How to determine if a data type is used in the comic book?
Background:
I am currently planning to install GoldenGate proof of Concept and have questions about the data types supported by the capture mode (pg 1-5, 1-6 in the installation guide). Is not in itself a matter of GoldenGate.
Our source and target databases are 11.2.0.2
The GG server will be 11.2.0.3
I'm new to the environment and want to confirm that we needn't upgrade the source and target the DBs to 11.2.0.3 in order to use the integrated capture mode. This forces me to know if 3 specific types of data are used in the comics. The problem is, Oracle docs aren't clear to me, when they refer to 3 specific data types.
Here's the question:
Does anyone know how I can confirm that the following 3 data types are used in the DB by querying the dictionary: "XML stored in binary form',"XML stored as object-relational","abstract data Type "?
If I select the types of data separate from dba_tab_columns, I see no data enumerated type that indicates, for example, that an XML string is stored as a ' binary '.
For me, when Oracle made reference to a "stored as binary XML" on page 1-6 on the installation guide, I guess that makes Oracle refers to a BLOB that contains an XML reference, but I can't be sure.
Someone has an idea that they could share? I just want to confirm that we do not have to upgrade our source and target DBs at 11.2.0.3 by searching in the database is possible to confirm that the above 3 data types are not used by the application.
Thanks in advance for any help.
Tony GYou should find XML columns stored in binary form or CLOB using the DBA_XML_TAB_COLS view referenced in http://docs.oracle.com/cd/E11882_01/appdev.112/e23094/xdb01int.htm#g644983.
You should find XML tables using storage relational object in the view DBA_OBJECT_TABLES with:
select owner, table_name, table_type from dba_object_tables where table_type='XMLTYPE';
To abstract data type, you can query DBA_TAB_COLUMNS using ADT as literal for DATA_TYPE column:
SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0 Production TNS for 32-bit Windows: Version 11.2.0.2.0 - Production NLSRTL Version 11.2.0.2.0 - Production SQL> drop table t purge; Table dropped. SQL> drop type adt; Type dropped. SQL> -- SQL> create type adt is object 2 ( 3 c1 number, 4 c2 varchar2(30) 5 ) final 6 / Type created. SQL> show errors No errors. SQL> create table t 2 ( 3 c adt 4 ) 5 / Table created. SQL> show errors No errors. SQL> -- SQL> column table_name format a10 SQL> column column_name format a10 SQL> column data_type format a10 SQL> select 2 table_name, 3 column_name, 4 data_type 5 from user_tab_columns 6 where 7 table_name='T'; TABLE_NAME COLUMN_NAM DATA_TYPE ---------- ---------- ---------- T C ADT
Edited by: P. Forstmann on 8 Apr. 2013 20:28
Edited by: P. Forstmann on 8 Apr. 2013 21:05
-
How update the relational table with XML data?
I get XML messages that include a bunch of data items to be updated in a table. An arbitrary subset of rows is updated for each message received.
The output of the following example is correct, but the use of the intermediate table that bothers me. The temporary table can be eliminated somehow? Or is the most reasonable way to loop just explicitly and parse the XML message and then update each row separately?
I'm under 11.2.0.1.0.
create table otn9test ( id number not null primary key, data xmltype ); insert into otn9test values (1, xmltype('<data>default for 1</data>')); insert into otn9test values (2, xmltype('<data>default for 2</data>')); insert into otn9test values (3, xmltype('<data>default for 3</data>')); create table otn9input ( id number, data xmltype ); column data format a30 declare updata constant xmltype := xmltype('<root> <item> <id>1</id> <data>Id 1 updated.</data> </item> <item> <id>3</id> <data>Id 3 updated.</data> </item> <item> <id>4</id> <data>Id 4 updated.</data> </item> </root>'); begin insert into otn9input select * from xmltable('/root/item' passing updata columns id number path 'id', data xmltype path 'data'); update otn9test t set data = ( select data from otn9input i where t.id = i.id ) where t.id in (select id from otn9input); commit; end; / select * from otn9input; /* ID DATA ---------- ------------------------------ 1 <data>Id 1 updated.</data> 3 <data>Id 3 updated.</data> 4 <data>Id 4 updated.</data> */ select * from otn9test; /* ID DATA ---------- ------------------------------ 1 <data>Id 1 updated.</data> 2 <data>default for 2</data> 3 <data>Id 3 updated.</data> */ drop table otn9input; drop table otn9test;
The temporary table can be eliminated somehow?
You can do it with the MERGER:
merge into otn9test t using ( select id, data from xmltable('/root/item' passing updata columns id number path 'id', data xmltype path 'data' ) ) x on ( t.id = x.id ) when matched then update set t.data = x.data ;
However, if you are looking for performance on large data sets, I think that the best is to use an intermediate table of XMLType (binary storage) to maintain the XML instance.
create table otn9input of xmltype xmltype store as securefile binary xml; insert into otn9input values( xmltype('
1 Id 1 updated.3 Id 3 updated.4 Id 4 updated.A structured XMLIndex could also help.
-
Problems with the display of XML data
I'm a bit new to Flash and have problems out XML data in Flash. Basically, when I saw publication, all data load XML file and displays very well. But when I actually publish the file and view in a browser, no data is displayed.
Data from XML is happening in the areas of dynamic text (title, description, image).
I use an absolute URL to retrieve the XML data, and I tried a lot of text integrated solutions, and nothing has worked. Here, any help would be greatly appreciated.
I have attached the script action, but also a piece of the XML file I get the data.After going through each difficulty as possible, I could find, I managed to miss the information contained in the link below. This fixed my issue.
http://www.Adobe.com/cfusion/knowledgebase/index.cfm?id=tn_14213
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