dbms_xmlgen

Similar Questions

• dbms_xmlgen - what is the right way to reuse a context?

  With the help of dbms_xmlgen.setBindValue () should keep a context and re-use.

  But it seems that execution is slower than the use of dbms_xmlgen.newContext () and dbms_xmlgen.closecontext () each time

  ???

  Kind regards
  Frank

  In my opinion, you use a version of overload undocumented GETXMLTYPE. Do not use undocumented features. Try to use

  v_xml_doc: = dbms_xmlgen. GetXmlType (v_ctx);

  And what you want to achieve by this loop for?

• dbms_xmlgen. GetXml with single quotes

  Can you get it someone please let me know what is wrong with this query. I try to convert the long and CLOB type. I wanted to convert long to varchar2 and to do this, I am to convert the long to clob or varchar2 clob.

  The query works fine when doing a rownum = 1 in the dynamic query but I would like to read carefully all the constraints so tried the underside and its failure with an error message for an unexpected end of SQL command.

  -with rownum

  SELECT dbms_lob.substr (longtoclob, 4000, 1) text

  of the double.

  (select (dbms_xmlgen.getxml ("SELECT t.search_condition ALIASLONG

  OF All_Constraints t WHERE rownum = 1')) longtoclob

  the double) Y where DBMS_LOB. GETLENGTH (Y.longtoclob) > 0;

  -generic query

  Select (SELECT (dbms_xmlgen.getxml (Q'[select search_condition in all_contstaints where cosntraint_name = ']' | constraint_name |))) Q '[']')) text, constraint_name from

  ALL_CONSTRAINTS

  where rownum < = 3;

  -generic query

  Select (SELECT (dbms_xmlgen.getxml (Q'[select search_condition in all_contstaints where cosntraint_name = ']' | constraint_name |))) Q '[']')) text, constraint_name from

  ALL_CONSTRAINTS

  where rownum<>

  'A few' bad stuff here:

  -keyword SELECT extra

  -typos in names of objects

  -DBMS_XMLGEN.getXML will give you a CLOB that represents a dataset XML to canonical format, not the search_condition directly necessary

  It is more what you are looking for, but know it's slow:

  select constraint_name
       , xmlcast(
           dbms_xmlgen.getxmltype(
             'select search_condition from all_constraints where constraint_name = ' || dbms_assert.enquote_literal(constraint_name)
           )
           as varchar2(4000)
         ) as text
  from all_constraints
  where rownum <= 3 ;
  

  (XMLCAST is 11g only, use the extractValue on lower versions)

• Problems with DBMS_XMLGEN.getXML add features

  Hello

  I use DBMS_XMLGEN on 11 GR 2.

  The documentation Pages of PL/SQL and Types Reference 11 GR 2 (July 2013) reads as follows:

  GETXML functions

  This function returns the XML document. The function is overloaded.

  Syntax

  Gets the XML document from the maximum number of rows specified. It

  adds the XML in the CLOB passed Use this version of GETXML

  To avoid extra CLOB copies and reuse the same CLOB for subsequent functions

  calls. Due to the CLOB reuse, this GETXML Functionscall is potentially more

  effective:

  DBMS_XMLGEN. GETXML)

  CTX IN ctxHandle,

  tmpclob IN OUT NCOPY CLOB,

  dtdOrSchema in numbers: = NONE)

  RETURN A BOOLEAN VALUE;

  11 GR 2 Guide (February 2014) developer Oracle DB XML stipulates the following:

  Parameters

  getXML (ctx IN ctxHandle, clobval IN OUT NCOPY clob, dtdOrSchema in numbers: = NONE);

  CTX -The context handle from call newContext. clobval (IN/OUT) - the CLOB to which the XML document is being attached, dtdOrSchema -If you need to generate the DTD or Schema. This parameter is NOT supported. Use this version of the function getXML, in order to avoid any supplement CLOB copies and if you want to reuse the same CLOB for subsequent calls. This getXML call is more effective than the other flavor, even if it means that you create the LOB reference. When you generate the XML, the number of lines specified by the setSkipRows call are ignored, then the maximum number of ranks as specified by the setMaxRows call (or all if not specified) is read and converted into XML. Use of the getNumRowsProce

  I'm bringing 2 parts of XML document.  I use 2 hierarchical queries.  One to generate hierarchical header of a table and another information to generate information of hierarchical detail to a separate table. My code is generally as follows:

  DECLARE

  hdrctx DBMS_XMLGEN.ctxHandle;

  detailctx DBMS_XMLGEN.ctxHandle;

  hdrdoc CLOB.

  BOOLEAN success;

  hdrqry VARCHAR2 (2000): = ' SELECT LEVEL, XMLELEMENT (EVALNAME HTAGNAME, HTAGVAL) OF HDRTABLE

  CONNECT HSUBSEQ = PRIOR HGRPSEQ';

  --

  detailqry VARCHAR2 (2000): = ' SELECT LEVEL, XMLELEMENT (EVALNAME DTAGNAME, DTAGVAL) OF DETAILTABLE

  CONNECT DSUBSEQ = PRIOR DGRPSEQ';

  BEGIN

  hdrctx: = DBMS_XMLGEN.newContextFromHierarchy (hdrqry);

  detailctx: = DBMS_XMLGEN.newContextFromHierarchy (detailqry);

  DBMS_LOB.CREATETEMPORARY (hdrdoc, true);

  DBMS_XMLGEN. GetXml (hdrctx, hdrdoc);

  -dbms_output.put_line (hdrdoc);

  DBMS_XMLGEN. GetXml (detailctx, hdrdoc);

  DBMS_XMLGEN.closeContext (hdrctx);

  DBMS_XMLGEN.closeContext (detailctx);

  dbms_output.put_line (hdrdoc);

  DBMS_LOB. FREETEMPORARY (hdrdoc);

  END;

  I also tried the next iteration:

  BEGIN

  hdrctx: = DBMS_XMLGEN.newContextFromHierarchy (hdrqry);

  detailctx: = DBMS_XMLGEN.newContextFromHierarchy (detailqry);

  DBMS_LOB.CREATETEMPORARY (hdrdoc, true);

  hdrdoc: = DBMS_XMLGEN.getXML (hdrctx);

  -dbms_output.put_line (hdrdoc);

  DBMS_XMLGEN. GetXml (detailctx, hdrdoc);

  DBMS_XMLGEN.closeContext (hdrctx);

  DBMS_XMLGEN.closeContext (detailctx);

  dbms_output.put_line (hdrdoc);

  DBMS_LOB. FREETEMPORARY (hdrdoc);

  END;

  The two sources of documentation indicates that version 3 of overload of getXML parameter adds the CLOB parameter that is passed and yet I am not able to get the details to add to the header.  If I Uncomment the first put_line I get a document of xml output containing the header as expected information.  However, the second put_line outputs of an xml document that contains only the detail information and none of the header information.  It is not adding as stated in the documentation, but substitute instead.  Any ideas what is happening here and how I can get the feature of adding such as specified in the documentation?

  An additional but trivial problem is the difference in the documentation.  Documentation packages and types indicates that 3 parameter getXML overload returns a BOOLEAN value.  DB XML Dev Guide does not indicate this.  When I use this, the call works as a process and not a function, but I'm failed in the 3rd parameter, which must by default to NONE.  I want to just make sure that using the 2 explicit and implicit parameters 1 is not ending up with me call the wrong version.

  Thanks in advance for any help you can give me on this point,

  Paul

  Because that the additional XML prologue is a specific, defined in section it is easy to remove.

  The best way to get something is to not generate it.

  This is the meeting of the 2 segments arbitrarily dimensions and structured it's much more embarrassing for me.

  What you mean?

  I'll look into the possibility of restructuring in those non-hierarchical hierarchical queries as a work-around.

  Don't bother it.

  Simply add two structures manually instead of using a 'function' who obviously don't get you any advantage.

  for example

  DECLARE

  hdrctx DBMS_XMLGEN.ctxHandle;

  detailctx DBMS_XMLGEN.ctxHandle;

  doc CLOB.

  hdrqry VARCHAR2 (2000): = ' SELECT LEVEL, XMLELEMENT ("emp", xmlattributes (empno as "id")) FROM scott.emp

  CONNECT BY prior empno = mgr

  Start with mgr is null';

  detailqry VARCHAR2 (2000): = ' SELECT LEVEL, XMLELEMENT ("emp2", xmlattributes (empno as "id")) FROM scott.emp

  CONNECT BY prior empno = mgr

  Start with mgr is null';

  BEGIN

  hdrctx: = dbms_xmlgen.newContextFromHierarchy (hdrqry);

  detailctx: = dbms_xmlgen.newContextFromHierarchy (detailqry);

  DBMS_LOB.CREATETEMPORARY (doc, true);

  Select xmlserialize (document

  XmlElement ("root"

  dbms_xmlgen.getxmltype (hdrctx)

  dbms_xmlgen.getxmltype (detailctx)

  )

  as clob dash

  )

  in the doc

  Double;

  dbms_xmlgen.closeContext (hdrctx);

  dbms_xmlgen.closeContext (detailctx);

  dbms_output.put_line (doc);

  DBMS_LOB.freeTemporary (doc);

  END;

  /

  output:

• ORA-06512: at "SYS." DBMS_XMLGEN", (ORA-00942: table or view does not exist)

  Hey guys, it's Xev.

  I decide to use SQL and XML and it works in a scenario, but in another scenario, is not.

  Here's the Code, I'm passing to two variables, first of all, I spend in the table table_name, and then I spend in the schema.

  If I connected it with "user" and that it seeks it's own pattern, he found the results, as for example, but if I try to run this code while not

  connected to the same user I'm looking for more, I get this error.

  ORA-19202: an error has occurred in the processing of XML

  ORA-00942: table or view does not exist

  ORA-06512: at "SYS." DBMS_XMLGEN", line 288

  ORA-06512: at line 1

  19202 00000 - "an error has occurred in the treatment of XML %s.

  * Cause: An error occurred during the processing of the XML function

  * Action: Check the given error message and resolve the problem appropriate

  /*-------------------------------------------------------------------------------

  This code works only you are connected to the user you are looking on.

  But if you're looking for a different user tables, it is kicking up and gives the above XML error...

  */

  SET SERVEROUTPUT ON

  exec DBMS_OUTPUT. ENABLE (1000000);

  Search_string VAR VARCHAR2 (28)

  EXEC: search_string: = ' ^ [0-9]{3}-[0-9]{2}-[0-9]{4}$']

  COLUMN "Keyword" FORMAT A28

  COLUMN 'Table' FORMAT A9

  COLUMN ' column value / "FORMAT A50

  SELECT DISTINCT SUBSTR (: search_string, 1: 28) "keyword."

  SUBSTR (table_name, 1, 14) "table."

  SUBSTR (t.column_value.getstringval (), 1, 50) ' / value of the column.

  OF dba_tab_cols.

  -where owner = ('& SCHEMA_NAME')

  TABLE

  (XMLSEQUENCE

  (DBMS_XMLGEN. GETXMLTYPE

  ("SELECT" | column_name |)

  'FROM ' | table_name |

  "WHERE REGEXP_LIKE.

  (' | column_name |) ','''

  || : search_string. ''')'

  () .extract (' LINES/rowset / * ""))) t

  -WHERE table_name IN ("FIND_TEST")

  WHERE table_name = upper ('& table_name')

  AND the OWNER = upper ('& SCHEMA_NAME')

  ORDER BY "Table".

  /

  Can someone please explain how works (DBMS_XMLGEN) and why it is throwing this error?

  Thank you

  Xev.

  It has nothing to do with DBMS_XMLGEN. GETXMLTYPE. It simply means the user running your SQL has no select privileges on the table & SCHEMA_NAME. & TABLE_NAME.

  SY.

• dbms_xmlgen-&gt; create oracle XML attribute with value type

  I use the dbms_xmlgen to create my xml message and I use the oracle TYPEs to create xml message elements.
  
  I need to create something like this:
  < type Emp 'name' = > xyz < / Emp >
  
  I tried to create the type as below
  create type emp_t as an object ("type" "@type")...
  
  But do not know how I need to set the value of this attribute.
  
  Help, please. Thanks in advance for your help.

  Can be

  SQL> select * from v$version where rownum=1;
  
  BANNER
  ----------------------------------------------------------------
  Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
  
  SQL>
  SQL> select  dbms_xmlgen.getxml('select ename, ''name'' as "@type" from emp') from dual;
  
  DBMS_XMLGEN.GETXML('SELECTENAM
  --------------------------------------------------------------------------------
  
  
   
    SMITH
   
   
    ALLEN
   
   
    WARD
   
   
  
  SQL> 
  

• Add a xmlns tag to the XML using DBMS_XMLGEN

  I'm using the version of Oracle version 10.1.0.4.2.
  
  I want to create an xml file according to some data in the relational database tables. For the same thing, I created object types and discovers with the types of objects, since the data is divided into several tables.
  
  Then, I used DBMS_XMLGEN.getxml to generate xml with queries from the view of the object.
  
  Y at - it an option to add the xmlns attribute in the xml file generated.
  
  Please let me know if any additional details are needed.

  If you want to add the namespace declaration to the root element, I don't think it's possible with DBMS_XMLGEN directly.
  You can ask DBMS_XMLGEN to treat some of the fields of the object as XML attributes by prefixing with '@' (for example '@my_attribute'), but you can't control which for bounding of the elements.

  A possible solution is to add it later, using XSLT, or insertChildXML, but apparently it is not available in your version.

  However...

  For the same thing, I created object types and discovers with the types of objects, since the data is divided into several tables.

  Because the data from different tables, why not use SQL and SQL/XML functions to build the document?
  This is simple, simple and needs no additional items.

  select xmlelement("Departments",
           xmlattributes('http://xmlns.example.org' as "xmlns")
         , xmlagg(
             xmlelement("Department",
               xmlattributes(d.deptno as "Id")
             , xmlelement("Name", d.dname)
             , xmlelement("Employees"
               , xmlagg(
                   xmlelement("Employee",
                     xmlattributes(e.empno as "Id")
                   , xmlforest(
                       e.ename as "Name"
                     , e.job as "Job"
                     )
                   ) order by e.empno
                 )
               )
             ) order by d.deptno
           )
         )
  from scott.dept d
       join scott.emp e on e.deptno = d.deptno
  group by d.deptno, d.dname
  ;
  

  Output:

  
    
      ACCOUNTING
      
        
          CLARK
          MANAGER
        
        
          KING
          PRESIDENT
        
        
          MILLER
          CLERK
        
      
    
    
      RESEARCH
      
        
          SMITH
          CLERK
        
        
          JONES
          MANAGER
        
        
          FORD
          ANALYST
        
      
    
    
      SALES
      
        
          ALLEN
          SALESMAN
        
        
          WARD
          SALESMAN
        
        
          MARTIN
          SALESMAN
        
        
          BLAKE
          MANAGER
        
        
          TURNER
          SALESMAN
        
        
          JAMES
          CLERK
        
      
    
  
  

• DBMS_XMLGEN. GETXML confusing WHERE the condition of clause?

  I can't quite wrap my head around that, but I found the following query
  
  Select * from user_views
  where dbms_xmlgen.getxml ("select text from user_views where view_name =" "|") view_name | ') like '% view_table_name % '.
  
  I am totally confuse everything, that's what makes the WHERE condition in the query?
  
  When I run the game "highlight text" it returns nothing
  
  If anyone knows why the WHERE clause is necessary?
  
  Thank you

  rodneyc8063 wrote:
  I don't understand why there are extra, extra quotes | and the "solomon_is_cool".

  Additional citations have nothing to do with dbms_xmlgen. In string literals Oracle must be in quotes by acronym. So what do you do if literal contains a quotation, for example O'Reily? The rule is, apostrophe inside the quoted string must be preceded by a second single quote. Thus, to produce the O string literal 'Reily, one must use 'O' Reily'. Now, back to dbms_xmlgen.get_xml. She waits for the SQL statement as a parameter. What SQL statement we want to produce? It would be:

  Select the text from user_views where view_name = "some-view-name."

  Right? Then, how the chain of the SQL statement above should look like? One way is to double single quotes:

  "Select the text from user_views where view_name =" some-view-name "'.

  But some-name-of-view is stored in the column of our query view_name. We have therefore concatenate the piecies which are:

  (1) text select lieral user_views where view_name = '
  (2) column view_name
  (3) literal '

  If we end up having:

  "Select the text from user_views where view_name ="' | view_name | ''''

  Now, you have replaced with solomon_is_cool view_name. This will not work because there is no solomon_is_cool column is user_views. What you probably wanted was:

  "Select the text from user_views where view_name ="solomon_is_cool"'.

  Then:

  dbms_xmlgen. GetXml ("select text from user_views where view_name ="solomon_is_cool"'") would look like to display user named solomon_is_cool text is tiny, which again could be a problem since the names, except between quotes, are stored in the data dictionary for uppercase. In any case, the counting of single quotes in string literals can be confusing. In the new versions of oracle introduced then Q-literals,

  dbms_xmlgen. GetXml ("select text from user_views where view_name =" "|") view_name | '''')

  could be replaced by more readable:

  dbms_xmlgen. GetXml (Q'[select text from user_views where view_name = ']' | view_name |) Q'[']')

  For example:

  SQL> select Q'[select text from user_views where view_name = ']' || view_name || Q'[']' from user_views where rownum < 3;
  
  Q'[SELECTTEXTFROMUSER_VIEWSWHEREVIEW_NAME=']'||VIEW_NAME||Q'[']'
  ------------------------------------------------------------------------------
  select text from user_views where view_name = 'EMP_VW'
  select text from user_views where view_name = 'REMOTE_DDL_VIEW_TEST'
  
  SQL> 
  

  SY.

• dbms_xmlgen.setXSLT behave differently in 11.2.0.3, output on 1 line

  post response: change the default output of dbms_xmlgen.getxml
  
  reclassification of 10.2.0.3 on 11.2.0.3
  

   
  create table table_x (column1 varchar2(10), column2 number) 
   
  insert into table_x values('row1',1);
   
  insert into table_x values('row2',2);
   
  commit;

  GetXml and transformation of xml
  

  select xmltransform(
        dbms_xmlgen.getxmltype('select column1, column2 from table_x')
      , xmltype(
      '<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
        <xsl:output method="xml"/>
        <xsl:template match="*">
          <xsl:copy>
            <xsl:apply-templates select="*"/>
          </xsl:copy>
       </xsl:template>
       <xsl:template match="ROW/*">
         <COL_DTLS><COL_VALUE><xsl:value-of select="."/></COL_VALUE></COL_DTLS>
       </xsl:template>
     </xsl:stylesheet>'
       )
     ).extract('/*')
     from dual
     ;

  10.2.0.3 on product:
  

  XMLTRANSFORM(DBMS_XMLGEN.GETXMLTYPE('SELECTCOLUMN1,COLUMN2FROMTABLE_X'),XMLTYPE(
  --------------------------------------------------------------------------------
  <ROWSET>                                                                        
    <ROW>                                                                         
      <COL_DTLS>                                                                  
        <COL_VALUE>row1</COL_VALUE>                                               
      </COL_DTLS>                                                                 
      <COL_DTLS>                                                                  
        <COL_VALUE>1</COL_VALUE>                                                  
      </COL_DTLS>                                                                 
    </ROW>                                                                        
    <ROW>                                                                         
      <COL_DTLS>                                                                  
        <COL_VALUE>row2</COL_VALUE>                                               
      </COL_DTLS>                                                                 
      <COL_DTLS>                                                                  
        <COL_VALUE>2</COL_VALUE>                                                  
      </COL_DTLS>                                                                 
    </ROW>                                                                        
  </ROWSET> 

  Product on 11.2.0.3:
  

  XMLTRANSFORM(DBMS_XMLGEN.GETXMLTYPE('SELECTCOLUMN1,COLUMN2FROMTABLE_X'),XMLTYPE(
  --------------------------------------------------------------------------------
  <ROWSET><ROW><COL_DTLS><COL_VALUE>row1</COL_VALUE></COL_DTLS><COL_DTLS><COL_VALU
  E>1</COL_VALUE></COL_DTLS></ROW><ROW><COL_DTLS><COL_VALUE>row2</COL_VALUE></COL_
  DTLS><COL_DTLS><COL_VALUE>2</COL_VALUE></COL_DTLS></ROW></ROWSET>    

  Question: How do the output looks like 10.2.0.3? How to ensure that the output is not wound on one line?

  Hello

  See this discussion and the solution: Pretty Print characteristic of the XMLType methods is broken in Oracle 11 g

  Herald tiomela
  http://htendam.WordPress.com

• Zero error of iteration - the treatment of dynamic sql statements in dbms_xmlgen

  Hello
  
  I have a procedure that creates a dynamic sql v_sql
  
  cursor v_curr is
  Select *.
  of btctl_msg_log;
  
  BEGIN
  Select count (*) in the v_cnt of btctl_msg_log;
  
  IF v_cnt > 0 THEN
  C1 in v_curr
  LOOP
  v_sql: = "' | ' SELECT * from '. C1.msg_rcrd_src_tbl_nm | |' where rowid = ' | " ' ||'' ' || C1.msg_rcrd_src_tbl_id | " ' ||'' ' ||'' ' ;
  Select DBMS_XMLGEN.getXMLtype (v_sql) in the double v_xml;
  
  gives me an error
  
  ORA-19202: an error has occurred in the processing of XML
  ORA-24333: zero number of iterations
  ORA-06512: at "SYS." DBMS_XMLGEN", line 288
  ORA-06512: at line 1
  
  I don't know why is this error happening.
  Any help much appreciated.

  881575 wrote:
  Hello

  I have a procedure that creates a dynamic sql v_sql

  cursor v_curr is
  Select *.
  of btctl_msg_log;

  BEGIN
  Select count (*) in the v_cnt of btctl_msg_log;

  IF v_cnt > 0 THEN
  C1 in v_curr
  LOOP
  v_sql: = "' | ' SELECT * from '. C1.msg_rcrd_src_tbl_nm | |' where rowid = ' | " ' ||'' ' || C1.msg_rcrd_src_tbl_id | " ' ||'' ' ||'' ' ;
  Select DBMS_XMLGEN.getXMLtype (v_sql) in the double v_xml;

  gives me an error

  ORA-19202: an error has occurred in the processing of XML
  ORA-24333: zero number of iterations
  ORA-06512: at "SYS." DBMS_XMLGEN", line 288
  ORA-06512: at line 1

  I don't know why is this error happening.
  Any help much appreciated.

  Standard when boards (ab) use of EXECUTE IMMEDIATE is to compose the SQL statement in a single VARCHAR2 variable
  Then print the variable before passing to EXECUTE IMMEDIATE.
  COPY the statement & PASTE in sqlplus to validate its correctness.

• Change the default output of dbms_xmlgen.getxml

  10g 10.2.0.3
  
  installation program:
  

  create table table_x (column1 varchar2(10), column2 number) 
  
  insert into table_x values('row1',1);
  
  insert into table_x values('row2',2);
  
  commit;

  Select using getxml:
  

  select dbms_xmlgen.getxml('select column1, column2 from table_x') from dual;
  
  gives:
  
  <?xml version="1.0"?>
  <ROWSET>
   <ROW>
    <COLUMN1>row1</COLUMN1>
    <COLUMN2>1</COLUMN2>
   </ROW>
   <ROW>
    <COLUMN1>row2</COLUMN1>
    <COLUMN2>2</COLUMN2>
   </ROW>
  </ROWSET>

  How to get:
  

  <?xml version="1.0"?>
  <ROWSET>
   <ROW>
    <COL_DTLS>
      <COL_VALUE>row1</COL_VALUE>
    </COL_DTLS>
    <COL_DTLS>
      <COL_VALUE>1</COL_VALUE>
    </COL_DTLS>
   </ROW>
   <ROW>
    <COL_DTLS>
      <COL_VALUE>row2</COL_VALUE>
    </COL_DTLS>
    <COL_DTLS>
      <COL_VALUE>2</COL_VALUE>
    </COL_DTLS>
   </ROW>
  </ROWSET>

  In summary.
  
  1. how to 'inject' the COL_DTLS tag for each piece of old LINE.
  2. how to change each element tag name line to 'COL_VALUE '.
  
  Note that the < Column1 > tag could change your name to any other tag, I have to be able to handle any valid SQL that generates SQL column names and number of items will change

  DBMS_XMLGEN can control only the names of ROWSET and ROW tags.
  So, if your only entry is a string SQL, then you must postprocess the XML generated, and XSLT can be useful here:

  SQL> select xmltransform(
    2    dbms_xmlgen.getxmltype('select column1, column2 from table_x')
    3  , xmltype(
    4  '
    5    
    6    
    7      
    8        
    9      
   10    
   11    
   12      
   13    
   14  '
   15    )
   16  ).extract('/*')
   17  from dual
   18  ;
  
  XMLTRANSFORM(DBMS_XMLGEN.GETXM
  --------------------------------------------------------------------------------
  
    
      
        row1
      
      
        1
      
    
    
      
        row2
      
      
        2
      
    
  
   
  

  Otherwise, the implementation of PL/SQL:

  DECLARE
  
    ctx   dbms_xmlgen.ctxHandle;
    doc   clob;
  
    xsl   xmltype := xmltype('
    
    
      
        
      
    
    
      
    
  ');
  
    qry   varchar2(2000) := 'select column1, column2 from table_x';
  
  BEGIN
  
    ctx := dbms_xmlgen.newContext(qry);
    dbms_xmlgen.setXSLT(ctx, xsl);
    doc := dbms_xmlgen.getXML(ctx);
    dbms_xmlgen.closeContext(ctx);
  
    dbms_output.put_line(doc);
  
  END;
  /
  

• Use of dbms_xmlgen.convert to capture the URL

  I use a web service that returns the XML response (see results below). I need to capture the URL in the tag "GetIEPUrlWithAuditResult". I tried this code, but get an ORA-30625: shipping method on NULL SELF argument is not allowed. Is my path of dbms_xmlgen.convert to the correct tag?
  
  l_xml: = xmltype.createxml (l_clob);
  l_val: = dbms_xmlgen.convert(l_xml.extract('//GetIEPUrlWithAuditResult/text()').getclobval(),1);
  
  
  RESULT
  -------------
  <? XML version = "1.0" encoding = "utf-8"? > < xmlns:soap: envelope soap = "http://schemas.xmlsoap.org/soap/envelope/" xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" container = "http://www.w3.org/2001/XMLSchema" > < soap: Body > < GetIEPUrlWithAuditResponse xmlns = "http://www.iepdirect.com/CentrisWebServices/IEPViwer" > < GetIEPUrlWithAuditResult > https://www.iepdirect.com/lettersandreports/maintenance/iepviewer.aspx?auditinfo=TEST & amp; viewertoken = cn097c5e6c69a94fbc9dffcd70bd88f2b9 | d0Gpyh6ZEelbL6lMz + ZDWBTyMqsfjkDFPlat6T + 8vMQ = < / GetIEPUrlWithAuditResult > < / GetIEPUrlWithAuditResponse > < / soap: Body > < / envelope soap: >

  Is my path of dbms_xmlgen.convert to the correct tag?

  Half correct.

  Missing namespace mapping, and you will need to add the text() node to the XPath expression to retrieve the value instead of the entire element.

   l_val := dbms_xmlgen.convert(
              l_xml.extract(
                '//GetIEPUrlWithAuditResult/text()'
              , 'xmlns="http://www.iepdirect.com/CentrisWebServices/IEPViwer"'
              ).getstringval()
            , 1
            );
  

  But, in this case, it is preferable to use extractValue (as she performs the necessary conversions for us):

   select extractvalue(
            l_xml
          , '//GetIEPUrlWithAuditResult'
          , 'xmlns="http://www.iepdirect.com/CentrisWebServices/IEPViwer"'
          )
   into l_val
   from dual;
  

• DBMS_XMLGEN and cursor

  Hey XML gurus,
  
  Is it possible to get this dbms_xmlgen.newcontext XML file:
  
  < HEADER >
  ARN < AIRPORT > < / AIRPORT >
  < / Header >
  < BODY >
  < GATE > 10 < / GATE >
  < / BODY >
  
  a table called flight consisting of three columns:
  msgid number, varchar2, door number airport
  How would the the sql query looks like not not using xmlelement, xmlforest...
  I'm on Oracle 10G 10.2.
  
  Concerning
  / Nicklas

  The 'underlying' suggestion is: don't use only not DBMS_XMLGEN at all.

  XMLFOREST cannot cope with null values

  Well, can of XMLElement.

• Invalid DateFormat for dbms_xmlgen.getxml

  Hello
  I use the dbms_xmlgen.getxml to generate the XML from the table.
  
  I have problems with the type of data type date.
  
  For date fields type XML is generated in format DD-MON-AA, but it does not record the passage of time.
  
  What should I do?

  Hello

  In the absence of an explicit conversion, NLS session parameters are used.

  Thus, two solutions:

  (1) change the setting NLS_DATE_FORMAT for the session:

  ALTER SESSION SET nls_date_format = "DD/MM/YYYY HH24:MI:SS";
  

  (2) use an explicit cast:

  SELECT to_char(your_date_col, 'DD/MM/YYYY HH24:MI:SS'), ...
  FROM ...
  

• DBMS_XMLGEN package

  Hello
  
  I have a table with the following columns
  
  name of the table: TRANSACTION
  
  columns:
  ID
  STATUS
  CREATEDBY
  CREATED THE
  
  
  I want to generate an xml for columns with the following format
  
  transactions <>
  < transaction >
  < id > 1 < /ID >
  < status > < / status >
  * < audit > *.
  < createdby > LINI < / createdby >
  < createdon > < / < createdon >
  * < / audit > *.
  < / transaction >
  <! - transactions more - >
  < / transactions >
  
  can it be dione using DBMS_XMLGEN package? I am not able to insert * < audit > * tag between the two. Help, please

  Maybe this:

  SQL> declare
    x   int;
  begin
    x :=
      dbms_xmlgen.newcontext (
        'select id "id", status "status", xmlconcat(xmlelement("createdby", createdby), xmlelement("created_on", created_on)) "audit" from transaction');
    dbms_xmlgen.setrowtag (x, 'transaction');
    dbms_xmlgen.setrowsettag (x, 'transactions');
  
    dbms_output.put_line (dbms_xmlgen.getxml (x));
  end;
  /
  
  
   
    1
    A
    
     LINI  
   
  
  PL/SQL procedure successfully completed.
  

  ?