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298 lines
35 KiB
HTML
298 lines
35 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html><head><title>Jailer - XML Export</title>
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<meta name="description" content="Data Export Tool">
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<ul>
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<li><small>Basic</small></li><ul><li><a href="exporting-data.htm" target="_self" class="llink">SQL
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Export</a></li></ul>
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<ul><li><a href="exporting-xml.html" target="_self" class="llinkA">XML
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Export<br>
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</a></li></ul>
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<ul><li><a href="deleting-data.htm" target="_self" class="llink">Deleting
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Data</a></li></ul><li><small>Advanced</small></li>
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<ul><li><a href="filters.html" target="_self" class="llink">Filters</a></li></ul>
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<ul><li><a href="subset-by-example.html" target="_self" class="llink">Subset By Example</a></li></ul>
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</table>
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<p> </p>
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<tr>
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<td class="content" height="520" valign="top" width="100%"> <small><small> </small></small><br>
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This tutorial shows you how to export data to XML and how to define the
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structure of the XML document.<br>
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<br>
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<h4>Objective</h4>
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Exporting all the data related to the employee named 'Scott' into a XML
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document.<br>
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<br>
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<h4>Step 1. Switch to XML-mode.<br>
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</h4>
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<p>Load the model <big><span style="font-family: monospace;">scott.csv</span></big>
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from the "SQL Export"
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tutorial and switch to XML mode. An additional panel named "XML
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Mapping" will appear.<br>
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</p>
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<p><img alt="" src="xmlt1.gif"><br>
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</p>
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<p><br>
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</p>
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<h4>Step 2. Export Scott to flat XML<br>
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</h4>
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<p>Export data into a file <a href="scott-1.xml"><img style="border: 0px solid ; width: 13px; height: 13px;" src="exporting-data-Dateien/arrow.gif" hspace="4"><big><span style="font-family: monospace;"><font size="4">scott-1.xml</font></span></big></a>.
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The XML file contains a flat list of all exported rows, starting with
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rows from subject table followed by all other rows in alphabetical
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order of their table names.<br>
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<br>
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</p>
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<div id="vc_markup">
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<pre><span class="hl line"> 1 </span><span class="hl kwa"><?xml</span> version=<span class="hl str">"1.0"</span> encoding=<span class="hl str">"ISO-8859-15"</span>?><br><span class="hl line"> 2 </span><span class="hl com"><!--</span><br><span class="hl line"> 3 </span><span class="hl com"> generated by Jailer at Sun Jul 06 11:33:33 CEST 2008 from wisser@desktop</span><br><span class="hl line"> 4 <br></span><span class="hl line"> 5 </span><span class="hl com"> extraction model: EMPLOYEE where T.NAME='SCOTT' (extractionmodel/scott.csv)</span><br><span class="hl line"> 6 </span><span class="hl com"> database URL: jdbc:db2://localhost/wisser</span><br><span class="hl line"> 7 </span><span class="hl com"> database user: scott</span><br><span class="hl line"> 8 </span><span class="hl com"> Exported Entities: 13</span><br><span class="hl line"> 9 </span><span class="hl com"> DEPARTMENT 2</span><br><span class="hl line"> 10 </span><span class="hl com"> EMPLOYEE 3</span><br><span class="hl line"> 11 </span><span class="hl com"> PROJECT 2</span><br><span class="hl line"> 12 </span><span class="hl com"> PROJECT_PARTICIPATION 2</span><br><span class="hl line"> 13 </span><span class="hl com"> ROLE 2</span><br><span class="hl line"> 14 </span><span class="hl com"> SALARYGRADE 2</span><br><span class="hl line"> 15 </span><span class="hl com">--></span><br><span class="hl line"> 16 </span><span class="hl kwa"><entities></span><br><span class="hl line"> 17 </span> <span class="hl kwa"> <employee></span><br><span class="hl line"> 18 </span> <span class="hl com"> <!--columns of EMPLOYEE as T--></span><br><span class="hl line"> 19 </span> <span class="hl kwa"> <empno></span><span class="hl num">7788</span><span class="hl kwa"></empno></span><br><span class="hl line"> 20 </span> <span class="hl kwa"> <name></span>SCOTT<span class="hl kwa"></name></span><br><span class="hl line"> 21 </span> <span class="hl kwa"> <job></span>ANALYST<span class="hl kwa"></job></span><br><span class="hl line"> 22 </span> <span class="hl kwa"> <boss></span><span class="hl num">7566</span><span class="hl kwa"></boss></span><br><span class="hl line"> 23 </span> <span class="hl kwa"> <hiredate></span><span class="hl num">1982</span>-<span class="hl num">12</span>-<span class="hl num">09</span><span class="hl kwa"></hiredate></span><br><span class="hl line"> 24 </span> <span class="hl kwa"> <salary></span><span class="hl num">3000.00</span><span class="hl kwa"></salary></span><br><span class="hl line"> 25 </span> <span class="hl kwa"> <comm/></span><br><span class="hl line"> 26 </span> <span class="hl kwa"> <deptno></span><span class="hl num">20</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 27 </span> <span class="hl kwa"> </employee></span><br><span class="hl line"> 28 </span> <span class="hl kwa"> <employee></span><br><span class="hl line"> 29 </span> <span class="hl com"> <!--columns of EMPLOYEE as T--></span><br><span class="hl line"> 30 </span> <span class="hl kwa"> <empno></span><span class="hl num">7566</span><span class="hl kwa"></empno></span><br><span class="hl line"> 31 </span> <span class="hl kwa"> <name></span>JONES<span class="hl kwa"></name></span><br><span class="hl line"> 32 </span> <span class="hl kwa"> <job></span>MANAGER<span class="hl kwa"></job></span><br><span class="hl line"> 33 </span> <span class="hl kwa"> <boss></span><span class="hl num">7839</span><span class="hl kwa"></boss></span><br><span class="hl line"> 34 </span> <span class="hl kwa"> <hiredate></span><span class="hl num">1981</span>-<span class="hl num">04</span>-<span class="hl num">02</span><span class="hl kwa"></hiredate></span><br><span class="hl line"> 35 </span> <span class="hl kwa"> <salary></span><span class="hl num">2975.00</span><span class="hl kwa"></salary></span><br><span class="hl line"> 36 </span> <span class="hl kwa"> <comm/></span><br><span class="hl line"> 37 </span> <span class="hl kwa"> <deptno></span><span class="hl num">20</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 38 </span> <span class="hl kwa"> </employee></span><br><span class="hl line"></span><span class="hl line"> ...<br> 50 </span> <span class="hl kwa"><department></span><br><span class="hl line"> 51 </span> <span class="hl com"><!--columns of DEPARTMENT as T--></span><br><span class="hl line"> 52 </span> <span class="hl kwa"> <deptno></span><span class="hl num">20</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 53 </span> <span class="hl kwa"> <name></span>RESEARCH<span class="hl kwa"></name></span><br><span class="hl line"> 54 </span> <span class="hl kwa"> <location></span>DALLAS<span class="hl kwa"></location></span><br><span class="hl line"> 55 </span> <span class="hl kwa"></department></span><br><span class="hl line"> 56 </span> <span class="hl kwa"> <department></span><br><span class="hl line"> 57 </span> <span class="hl com"> <!--columns of DEPARTMENT as T--></span><br><span class="hl line"> 58 </span> <span class="hl kwa"> <deptno></span><span class="hl num">10</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 59 </span> <span class="hl kwa"><name></span>ACCOUNTING<span class="hl kwa"></name></span><br><span class="hl line"> 60 </span> <span class="hl kwa"> <location></span>NEW YORK<span class="hl kwa"></location></span><br><span class="hl line"> 61 </span> <span class="hl kwa"> </department></span><br><span class="hl line"> 62 </span> <span class="hl kwa"> <project></span><br><span class="hl line"> 63 </span> <span class="hl com"> <!--columns of PROJECT as T--></span><br><span class="hl line"> 64 </span> <span class="hl kwa"><projectno></span><span class="hl num">1001</span><span class="hl kwa"></projectno></span><br><span class="hl line"> 65 </span> <span class="hl kwa"> <description></span>Development of Novel Magnetic Suspension System<span class="hl kwa"></description></span><br><span class="hl line"> 66 </span> <span class="hl kwa"> <start_date></span><span class="hl num">2006</span>-<span class="hl num">01</span>-<span class="hl num">01</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 67 </span> <span class="hl kwa"> <end_date></span><span class="hl num">2007</span>-<span class="hl num">08</span>-<span class="hl num">13</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 68 </span> <span class="hl kwa"> </project></span><br><span class="hl line"> 69 </span> <span class="hl kwa"> <project></span><br><span class="hl line"> 70 </span> <span class="hl com"> <!--columns of PROJECT as T--></span><br><span class="hl line"> 71 </span> <span class="hl kwa"> <projectno></span><span class="hl num">1003</span><span class="hl kwa"></projectno></span><br><span class="hl line"> 72 </span> <span class="hl kwa"> <description></span>Foundation of Quantum Technology<span class="hl kwa"></description></span><br><span class="hl line"> 73 </span> <span class="hl kwa"> <start_date></span><span class="hl num">2007</span>-<span class="hl num">02</span>-<span class="hl num">24</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 74 </span> <span class="hl kwa"> <end_date></span><span class="hl num">2008</span>-<span class="hl num">07</span>-<span class="hl num">31</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 75 </span> <span class="hl kwa"> </project></span><br><span class="hl line"> 76 </span> <span class="hl kwa"> <project_participation></span><br><span class="hl line"> 77 </span> <span class="hl com"> <!--columns of PROJECT_PARTICIPATION as T--></span><br><span class="hl line"> 78 </span> <span class="hl kwa"> <projectno></span><span class="hl num">1001</span><span class="hl kwa"></projectno></span><br><span class="hl line"> 79 </span> <span class="hl kwa"> <empno></span><span class="hl num">7788</span><span class="hl kwa"></empno></span><br><span class="hl line"> 80 </span> <span class="hl kwa"> <start_date></span><span class="hl num">2006</span>-<span class="hl num">05</span>-<span class="hl num">15</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 81 </span> <span class="hl kwa"> <end_date></span><span class="hl num">2006</span>-<span class="hl num">11</span>-<span class="hl num">01</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 82 </span> <span class="hl kwa"> <role_id></span><span class="hl num">100</span><span class="hl kwa"></role_id></span><br><span class="hl line"> 83 </span> <span class="hl kwa"> </project_participation></span><br><span class="hl line"> </span><span class="hl line">...<br> </span><span class="hl line">92 </span> <span class="hl kwa"> <role></span><br><span class="hl line"> </span><span class="hl line"></span><span class="hl line">93 </span> <span class="hl com"> <!--columns of ROLE as T--></span><br><span class="hl line"> 94 </span> <span class="hl kwa"><role_id></span><span class="hl num">100</span><span class="hl kwa"></role_id></span><br><span class="hl line"> 95 </span> <span class="hl kwa"> <description></span>Developer<span class="hl kwa"></description></span><br><span class="hl line"> 96 </span> <span class="hl kwa"> </role></span>
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<span class="hl line"></span><span class="hl line"> ...</span><span class="hl kwa"></span><br> </pre>
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</div>
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<h4>Step 3. Defining the XML structure</h4>
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<p>In the "XML Mapping" panel you can define the
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aggregation-type for each association. If the aggregation-type an
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association from table A to B is not 'none', than the XML
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representation of
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entities from table B will be embedded into the XML representation of
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the
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associated entities from table A.<br>
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</p>
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<p>Set the aggregation-type to 'implicit list' for
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the
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associations:<br>
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</p>
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<ul>
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<li>BOSS (from EMPLOYEE to EMPLOYEE)</li>
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<li>from EMPLOYEE to DEPARTMENT</li>
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<li>from EMPLOYEE to SALARYGRADE. Change the tag
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name to<span style="font-style: italic;"> salary_grade</span>.<br>
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<br>
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</li>
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</ul>
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set the aggregation-type to 'explicit list' with 'participations' as
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tag for the
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association:<br>
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<ul>
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<li>from EMPLOYEE to PROJECT_PARTICIPATION<br>
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<br>
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</li>
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</ul>
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and set the aggregation-type to 'flat' for the
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associations:
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<ul>
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<li>from EMPLOYEE to PROJECT_PARTICIPATION</li>
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<li>from PROJECT_PARTICIPATION to PROJECT</li>
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<li>from PROJECT_PARTICIPATION to ROLE<br>
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</li>
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</ul>
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<br>
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<img alt="" src="xmlt2.gif"><br>
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<p><br>
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Export data into a file <a href="scott-2.xml"><img style="border: 0px solid ;" src="exporting-data-Dateien/arrow.gif" hspace="4"><big><span style="font-family: monospace;"><font size="4">scott-2.xml</font></span></big></a>.
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The department, the salary-grade, the boss and the project
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participations are now embedded into the
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employee-elements. Columns from Project and Role are embedded directly
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into the elements of the project participations. </p>
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<div id="vc_markup">
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<pre><span class="hl line"> 1 </span><span class="hl kwa"><?xml</span> version=<span class="hl str">"1.0"</span> encoding=<span class="hl str">"ISO-8859-15"</span>?><br><span class="hl line"> 2 </span><span class="hl com"><!--</span><br><span class="hl line"> 3 </span><span class="hl com"> generated by Jailer at Sun Jul 06 12:04:12 CEST 2008 from wisser@desktop</span><br><span class="hl line"> 4 </span><span class="hl com"></span><br><span class="hl line"> 5 </span><span class="hl com"> extraction model: EMPLOYEE where T.NAME='SCOTT' (extractionmodel/scott.csv)</span><br><span class="hl line"> 6 </span><span class="hl com"> database URL: jdbc:db2://localhost/wisser</span><br><span class="hl line"> 7 </span><span class="hl com"> database user: scott</span><br><span class="hl line"> 8 </span><span class="hl com"> Exported Entities: 13</span><br><span class="hl line"> 9 </span><span class="hl com"> DEPARTMENT 2</span><br><span class="hl line"> 10 </span><span class="hl com"> EMPLOYEE 3</span><br><span class="hl line"> 11 </span><span class="hl com"> PROJECT 2</span><br><span class="hl line"> 12 </span><span class="hl com"> PROJECT_PARTICIPATION 2</span><br><span class="hl line"> 13 </span><span class="hl com"> ROLE 2</span><br><span class="hl line"> 14 </span><span class="hl com"> SALARYGRADE 2</span><br><span class="hl line"> 15 </span><span class="hl com">--></span><br><span class="hl line"> 16 </span><span class="hl kwa"><entities></span><br><span class="hl line"> 17 </span> <span class="hl kwa"><employee></span><br><span class="hl line"> 18 </span><span style="font-family: mon;"><span style="font-style: italic;"> </span></span><span class="hl com"><!--columns of EMPLOYEE as T--></span><br><span class="hl line"> 19 </span> <span class="hl kwa"><empno></span><span class="hl num">7788</span><span class="hl kwa"></empno></span><br><span class="hl line"> 20 </span> <span class="hl kwa"><name></span>SCOTT<span class="hl kwa"></name></span><br><span class="hl line"> 21 </span> <span class="hl kwa"> <job></span>ANALYST<span class="hl kwa"></job></span><br><span class="hl line"> 22 </span> <span class="hl kwa"> <boss></span><span class="hl num">7566</span><span class="hl kwa"></boss></span><br><span class="hl line"> 23 </span> <span class="hl kwa"><hiredate></span><span class="hl num">1982</span>-<span class="hl num">12</span>-<span class="hl num">09</span><span class="hl kwa"></hiredate></span><br><span class="hl line"> 24 </span> <span class="hl kwa"> <salary></span><span class="hl num">3000.00</span><span class="hl kwa"></salary></span><br><span class="hl line"> 25 </span> <span class="hl kwa"><comm/></span><br><span class="hl line"> 26 </span> <span class="hl kwa"> <deptno></span><span class="hl num">20</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 27 </span> <span class="hl com"> <!--associated SALARYGRADE row--></span><br><span class="hl line"> 28 </span> <span class="hl kwa"> <salary_grade></span><br><span class="hl line"> 29 </span> <span class="hl com"> <!--columns of SALARYGRADE as T--></span><br><span class="hl line"> 30 </span> <span class="hl kwa"> <grade></span><span class="hl num">4</span><span class="hl kwa"></grade></span><br><span class="hl line"> 31 </span> <span class="hl kwa"> <losal></span><span class="hl num">2001</span><span class="hl kwa"></losal></span><br><span class="hl line"> 32 </span> <span class="hl kwa"> <hisal></span><span class="hl num">3000</span><span class="hl kwa"></hisal></span><br><span class="hl line"> 33 </span> <span class="hl kwa"> </salary_grade></span><br><span class="hl line"> 34 </span> <span class="hl com"> <!--associated DEPARTMENT row--></span><br><span class="hl line"> 35 </span> <span class="hl kwa"> <department></span><br><span class="hl line"> 36 </span> <span class="hl com"> <!--columns of DEPARTMENT as T--></span><br><span class="hl line"> 37 </span> <span class="hl kwa"> <deptno></span><span class="hl num">20</span><span class="hl kwa"></deptno></span><br><span class="hl line"> 38 </span> <span class="hl kwa"> <name></span>RESEARCH<span class="hl kwa"></name></span><br><span class="hl line"> 39 </span> <span class="hl kwa"> <location></span>DALLAS<span class="hl kwa"></location></span><br><span class="hl line"> 40 </span> <span class="hl kwa"> </department></span><br><span class="hl line"> 41 </span> <span class="hl com"> <!--associated EMPLOYEE row--></span><br><span class="hl line"> 42 </span> <span class="hl kwa"> <boss></span><br><span class="hl line"> 43 </span> <span class="hl com"> <!--columns of EMPLOYEE as T--></span><br><span class="hl line"> ...<br></span><span class="hl line"></span><span class="hl line"></span><span class="hl line"></span><span class="hl line"></span><span class="hl line"> 116 </span> <span class="hl kwa"> </boss></span><br><span class="hl line"> 117 </span> <span class="hl com"> <!--associated PROJECT_PARTICIPATION rows--></span><br><span class="hl line"> 118 </span> <span class="hl kwa"> <participations></span><br><span class="hl line"> 119 </span> <span class="hl kwa"> <project_participation></span><br><span class="hl line"> 120 </span> <span class="hl com"> <!--columns of PROJECT_PARTICIPATION as T--></span><br><span class="hl line"> 121 </span> <span class="hl kwa"> <projectno></span><span class="hl num">1001</span><span class="hl kwa"></projectno></span><br><span class="hl line"> 122 </span> <span class="hl kwa"> <empno></span><span class="hl num">7788</span><span class="hl kwa"></empno></span><br><span class="hl line"> 123 </span> <span class="hl kwa"> <start_date></span><span class="hl num">2006</span>-<span class="hl num">05</span>-<span class="hl num">15</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 124 </span> <span class="hl kwa"> <end_date></span><span class="hl num">2006</span>-<span class="hl num">11</span>-<span class="hl num">01</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 125 </span> <span class="hl kwa"><role_id></span><span class="hl num">100</span><span class="hl kwa"></role_id></span><br><span class="hl line"> 126 </span> <span class="hl com"> <!--associated ROLE row--></span><br><span class="hl line"> 127 </span> <span class="hl com"> <!--columns of ROLE as T--></span><br><span class="hl line"> 128 </span> <span class="hl kwa"><role_id></span><span class="hl num">100</span><span class="hl kwa"></role_id></span><br><span class="hl line"> 129 </span> <span class="hl kwa"> <description></span>Developer<span class="hl kwa"></description></span><br><span class="hl line"> 130 </span> <span class="hl com"><!--associated PROJECT row--></span><br><span class="hl line"> 131 </span> <span class="hl com"> <!--columns of PROJECT as T--></span><br><span class="hl line"> 132 </span> <span class="hl kwa"> <projectno></span><span class="hl num">1001</span><span class="hl kwa"></projectno></span><br><span class="hl line"> 133 </span> <span class="hl kwa"> <description></span>Development of Novel Magnetic Suspension System<span class="hl kwa"></description></span><br><span class="hl line"> 134 </span> <span class="hl kwa"> <start_date></span><span class="hl num">2006</span>-<span class="hl num">01</span>-<span class="hl num">01</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 135 </span> <span class="hl kwa"> <end_date></span><span class="hl num">2007</span>-<span class="hl num">08</span>-<span class="hl num">13</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 136 </span> <span class="hl kwa"> </project_participation></span><br><span class="hl line"> 137 </span> <span class="hl kwa"> </participations></span><br><span class="hl line"> 138 </span> <span class="hl kwa"></employee></span><br><span class="hl line"> 139 </span><span class="hl kwa"></entities></span><br><br></pre>
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<h4>Step 3. Defining the column mapping</h4>
|
|
The "XML Column Mapping" dialog allows you to define how columns will
|
|
be mapped to XML elements or attributes. By default each column is
|
|
mapped to an element with the same name. You can open the dialog using
|
|
the "<span style="font-style: italic;">map column</span>"
|
|
button or via
|
|
the context menu of a table.<br>
|
|
<br>
|
|
The <span style="font-style: italic;">column mapping
|
|
template</span>
|
|
of a table describes the XML represenation of each exported row:<br>
|
|
<ul>
|
|
<li>Expression starting with <span style="font-style: italic;">SQL:</span>
|
|
will be replaced by the value of the SQL expression thereafter. <span style="font-style: italic;">T</span> is the alias for
|
|
the row. Note that even scalar subqueries are allowed here.</li>
|
|
<li><span style="font-style: italic;">j:assoc</span>
|
|
elements
|
|
will be replaced by the XML representation of the associated rows.<br>
|
|
</li>
|
|
</ul>
|
|
<br>
|
|
We change the mapping in the following way:<br>
|
|
<ol>
|
|
<li>Foreign keys should not appear in the XML document as
|
|
they
|
|
are redundant.<br>
|
|
</li>
|
|
<li>Map primary keys to attributes rather than elements.</li>
|
|
<li>Some elements of ROLE and PROJECT should be renamed.
|
|
Their
|
|
names are not unique due to the flat embedment into
|
|
PROJECT_PARTICIPATION:<br>
|
|
</li>
|
|
<ul>
|
|
<li>Rename the ROLE-tag <span style="font-style: italic;">'description'</span>
|
|
into <span style="font-style: italic;">'role_description'</span>
|
|
<br>
|
|
</li>
|
|
<li>Rename the PROJECT-tag <span style="font-style: italic;">'description'</span>
|
|
into <span style="font-style: italic;">'project_description'</span></li>
|
|
<li>Rename the PROJECT-tag <span style="font-style: italic;">'start_date'</span>
|
|
into <span style="font-style: italic;">'project_start_date'</span></li>
|
|
<li>Rename the PROJECT-tag <span style="font-style: italic;">'end_date'</span>
|
|
into <span style="font-style: italic;">'project_end_date'</span></li>
|
|
</ul>
|
|
</ol>
|
|
<br>
|
|
Open the mapping dialog for table EMPLYOEE:<br>
|
|
<br>
|
|
<img alt="" src="xmlt3.gif"><br>
|
|
<br>
|
|
Remove the elements <span style="font-style: italic;">'empno',</span>
|
|
<span style="font-style: italic;">'boss'</span>
|
|
and <span style="font-style: italic;">'deptno'.</span>
|
|
Add attribute <span style="font-style: italic;">empno="SQL:T.EMPNO"</span>
|
|
to the root
|
|
element.<br>
|
|
<br>
|
|
Open the mapping dialog for table DEPARTMENT. Remove element <span style="font-style: italic;">deptno</span> and add
|
|
attribute <span style="font-style: italic;">deptno="SQL:T.DEPTNO"</span>
|
|
to the root
|
|
element.<br>
|
|
<br>
|
|
Remove element <span style="font-style: italic;">grade</span>
|
|
from
|
|
column mapping template of table SALARY_GRADE and add the attribute <span style="font-style: italic;">grade="SQL:T.GRADE"</span>
|
|
to the root
|
|
element.<br>
|
|
<br>
|
|
Remove elements <span style="font-style: italic;">projectno,
|
|
empno</span>
|
|
and <span style="font-style: italic;">role_id</span>
|
|
from column
|
|
mapping template of table PROJECT_PARTICIPATION.<br>
|
|
<br>
|
|
Remove element <span style="font-style: italic;">projectno</span>
|
|
from
|
|
column mapping template of table PROJECT. Rename <span style="font-style: italic;">description,</span> <span style="font-style: italic;">start_date</span> and <span style="font-style: italic;">end_date</span> into <span style="font-style: italic;">project_description,</span>
|
|
<span style="font-style: italic;">project_start_date</span>
|
|
and <span style="font-style: italic;">project_end_date.</span><br>
|
|
<br>
|
|
Remove element <span style="font-style: italic;">role_id</span>
|
|
from
|
|
column mapping template of table ROLE. Rename <span style="font-style: italic;">description</span> into <span style="font-style: italic;">role_description</span><span style="font-style: italic;">.</span>
|
|
<h4> </h4>
|
|
Export data into a file <a href="scott-3.xml"><img style="border: 0px solid ;" src="exporting-data-Dateien/arrow.gif" hspace="4"><big><span style="font-family: monospace;"><font size="4">scott-3.xml</font></span></big></a>.<br>
|
|
<br>
|
|
<div id="vc_markup">
|
|
<pre><span class="hl line"> 1 </span><span class="hl kwa"><?xml</span> version=<span class="hl str">"1.0"</span> encoding=<span class="hl str">"ISO-8859-15"</span>?><br><span class="hl line"> 2 </span><span class="hl com"><!--</span><br><span class="hl line"> 3 </span><span class="hl com"> generated by Jailer at Sun Jul 06 11:22:00 CEST 2008 from wisser@desktop</span><br><span class="hl line"> 4 </span><span class="hl com"></span><br><span class="hl line"> 5 </span><span class="hl com"> extraction model: EMPLOYEE where T.NAME='SCOTT' (extractionmodel/scott.csv)</span><br><span class="hl line"> 6 </span><span class="hl com"> database URL: jdbc:db2://localhost/wisser</span><br><span class="hl line"> 7 </span><span class="hl com"> database user: scott</span><br><span class="hl line"> 8 </span><span class="hl com"> Exported Entities: 13</span><br><span class="hl line"> 9 </span><span class="hl com"> DEPARTMENT 2</span><br><span class="hl line"> 10 </span><span class="hl com"> EMPLOYEE 3</span><br><span class="hl line"> 11 </span><span class="hl com"> PROJECT 2</span><br><span class="hl line"> 12 </span><span class="hl com"> PROJECT_PARTICIPATION 2</span><br><span class="hl line"> 13 </span><span class="hl com"> ROLE 2</span><br><span class="hl line"> 14 </span><span class="hl com"> SALARYGRADE 2</span><br><span class="hl line"> 15 </span><span class="hl com">--></span><br><span class="hl line"> 16 </span><span class="hl kwa"><entities></span><br><span class="hl line"> 17 </span> <span class="hl kwa"><employee</span> empno=<span class="hl str">"7788"</span>><br><span class="hl line"> 18 </span> <span class="hl com"><!--columns of EMPLOYEE as T--></span><br><span class="hl line"> 19 </span> <span class="hl kwa"><name></span>SCOTT<span class="hl kwa"></name></span><br><span class="hl line"> 20 </span> <span class="hl kwa"><job></span>ANALYST<span class="hl kwa"></job></span><br><span class="hl line"> 21 </span> <span class="hl kwa"><hiredate></span><span class="hl num">1982</span>-<span class="hl num">12</span>-<span class="hl num">09</span><span class="hl kwa"></hiredate></span><br><span class="hl line"> 22 </span> <span class="hl kwa"><comm/></span><br><span class="hl line"> 23 </span> <span class="hl com"><!--associated SALARYGRADE row--></span><br><span class="hl line"> 24 </span> <span class="hl kwa"><salary_grade</span> grade=<span class="hl str">"4"</span>><br><span class="hl line"> 25 </span> <span class="hl com"><!--columns of SALARYGRADE as T--></span><br><span class="hl line"> 26 </span> <span class="hl kwa"><losal></span><span class="hl num">2001</span><span class="hl kwa"></losal></span><br><span class="hl line"> 27 </span> <span class="hl kwa"><hisal></span><span class="hl num">3000</span><span class="hl kwa"></hisal></span><br><span class="hl line"> 28 </span> <span class="hl kwa"></salary_grade></span><br><span class="hl line"> 29 </span> <span class="hl com"><!--associated DEPARTMENT row--></span><br><span class="hl line"> 30 </span> <span class="hl kwa"><department</span> deptno=<span class="hl str">"20"</span>><br><span class="hl line"> 31 </span> <span class="hl com"><!--columns of DEPARTMENT as T--></span><br><span class="hl line"> 32 </span> <span class="hl kwa"><name></span>RESEARCH<span class="hl kwa"></name></span><br><span class="hl line"> 33 </span> <span class="hl kwa"><location></span>DALLAS<span class="hl kwa"></location></span><br><span class="hl line"> 34 </span> <span class="hl kwa"></department></span><br><span class="hl line"> 35 </span> <span class="hl com"><!--associated EMPLOYEE row--></span><br><span class="hl line"> 36 </span> <span class="hl kwa"><boss</span> empno=<span class="hl str">"7566"</span>><br><span class="hl line"></span><span class="hl line"></span> ...<br><span class="hl line"> 93 </span> <span class="hl kwa"></boss></span><br><span class="hl line"> 94 </span> <span class="hl com"><!--associated PROJECT_PARTICIPATION rows--></span><br><span class="hl line"> 95 </span> <span class="hl kwa"><participations></span><br><span class="hl line"> 96 </span> <span class="hl kwa"><project_participation></span><br><span class="hl line"> 97 </span> <span class="hl com"><!--columns of PROJECT_PARTICIPATION as T--></span><br><span class="hl line"> 98 </span> <span class="hl kwa"><start_date></span><span class="hl num">2006</span>-<span class="hl num">05</span>-<span class="hl num">15</span><span class="hl kwa"></start_date></span><br><span class="hl line"> 99 </span> <span class="hl kwa"><end_date></span><span class="hl num">2006</span>-<span class="hl num">11</span>-<span class="hl num">01</span><span class="hl kwa"></end_date></span><br><span class="hl line"> 100 </span> <span class="hl com"><!--associated ROLE row--></span><br><span class="hl line"> 101 </span> <span class="hl com"><!--columns of ROLE as T--></span><br><span class="hl line"> 102 </span> <span class="hl kwa"><role_description></span>Developer<span class="hl kwa"></role_description></span><br><span class="hl line"> 103 </span> <span class="hl com"><!--associated PROJECT row--></span><br><span class="hl line"> 104 </span> <span class="hl com"><!--columns of PROJECT as T--></span><br><span class="hl line"> 105 </span> <span class="hl kwa"><project_description></span>Development of Novel Magnetic Suspension System<span class="hl kwa"></project_description></span><br><span class="hl line"> 106 </span> <span class="hl kwa"><project_start_date></span><span class="hl num">2006</span>-<span class="hl num">01</span>-<span class="hl num">01</span><span class="hl kwa"></project_start_date></span><br><span class="hl line"> 107 </span> <span class="hl kwa"><project_end_date></span><span class="hl num">2007</span>-<span class="hl num">08</span>-<span class="hl num">13</span><span class="hl kwa"></project_end_date></span><br><span class="hl line"> 108 </span> <span class="hl kwa"></project_participation></span><br><span class="hl line"> 109 </span> <span class="hl kwa"></participations></span><br><span class="hl line"> 110 </span> <span class="hl kwa"></employee></span><br><span class="hl line"> 111 </span><span class="hl kwa"></entities></span><br><br></pre>
|
|
</div>
|
|
<br>
|
|
<h4> </h4>
|
|
<h4>Step 4. Export entire employee hierarchy</h4>
|
|
Finally we export all employees into a XML tree with the president as
|
|
root and subordinates as the children.<br>
|
|
Do the following:<br>
|
|
<ul>
|
|
<li>set the aggregation-type of association 'BOSS' to
|
|
'none'.</li>
|
|
<li>set the aggregation-type of association
|
|
'inverse-BOSS' to
|
|
'explicit list', set tag name to 'subordinates'.</li>
|
|
<li>remove restriction from 'inverse-BOSS' association.<br>
|
|
</li>
|
|
<li>set where-condition to T.NAME='KING'.</li>
|
|
</ul>
|
|
Export data into a file <a href="scott-4.xml"><img style="border: 0px solid ; width: 13px; height: 13px;" src="exporting-data-Dateien/arrow.gif" hspace="4"><big><span style="font-family: monospace;"><font size="4">scott-4.xml</font></span></big></a>.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td height="12" valign="top" width="14%"><br>
|
|
</td>
|
|
<td><br>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</body></html> |