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| <div class="sect3"><!-- infolevel="all" infotype="General" --> |
| <h1>Schema Generation</h1> |
| <p>This table lists the properties of the Schema Generation page of the <a href="reference018.htm#CIACCHID">persistence.xml Editor</a>.</p> |
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| <p class="notep1">Note:</p> |
| This page is not available for projects using the <span class="bold">Generic</span> platform.</td> |
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| <p class="titleintable"> </p> |
| <table class="Formal" title="" summary="This table lists the properties of the persistence.xml Editor’s Schema Generation page." dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0"> |
| <thead> |
| <tr align="left" valign="top"> |
| <th align="left" valign="bottom" id="r1c1-t27">Property</th> |
| <th align="left" valign="bottom" id="r1c2-t27">Description</th> |
| <th align="left" valign="bottom" id="r1c3-t27">Default</th> |
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| <td align="left" id="r2c1-t27" headers="r1c1-t27"> |
| <p>DDL Generation Type</p> |
| </td> |
| <td align="left" headers="r2c1-t27 r1c2-t27"> |
| <p>Select the type of DDL generation:</p> |
| <ul> |
| <li> |
| <p><span class="bold">None</span> -- Do not generate DDL; no schema is generated.</p> |
| </li> |
| <li> |
| <p><span class="bold">Create Tables</span> -- Create DDL for non-existent tables; leave existing tables unchanged.</p> |
| </li> |
| <li> |
| <p><span class="bold">Drop and Create Tables</span> -- Create DDL for all tables; drop all existing tables.</p> |
| </li> |
| </ul> |
| </td> |
| <td align="left" headers="r2c1-t27 r1c3-t27"> |
| <p>None</p> |
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| </tr> |
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| <td align="left" id="r3c1-t27" headers="r1c1-t27"> |
| <p>Output Mode</p> |
| </td> |
| <td align="left" headers="r3c1-t27 r1c2-t27"> |
| <p>Select the DDL generation target:</p> |
| <ul> |
| <li> |
| <p><span class="bold">Both</span> -- Generate SQL files and execute them on the database.</p> |
| </li> |
| <li> |
| <p><span class="bold">Database</span> -- Execute SQL on the database only (do not generate SQL files).</p> |
| </li> |
| <li> |
| <p><span class="bold">SQL Script</span> -- Generate SQL files only (do not execute them on the database).</p> |
| </li> |
| </ul> |
| </td> |
| <td align="left" headers="r3c1-t27 r1c3-t27"><br /></td> |
| </tr> |
| <tr align="left" valign="top"> |
| <td align="left" id="r4c1-t27" headers="r1c1-t27"> |
| <p>DDL Generation Location</p> |
| </td> |
| <td align="left" headers="r4c1-t27 r1c2-t27"> |
| <p>Specify where EclipseLink writes DDL output. Specify a file specification to a directory in which you have write access. The file specification may be relative to your current working directory or absolute. If it does not end in a file separator, then EclipseLink appends one that is valid for your operating system.</p> |
| </td> |
| <td align="left" headers="r4c1-t27 r1c3-t27"><br /></td> |
| </tr> |
| <tr align="left" valign="top"> |
| <td align="left" id="r5c1-t27" headers="r1c1-t27"> |
| <p>Create DDL File Name</p> |
| </td> |
| <td align="left" headers="r5c1-t27 r1c2-t27"> |
| <p>Specify the file name of the DDL file that EclipseLink generates that contains SQL statements for creating tables for JPA entities. Specify a file name valid for your operating system.</p> |
| </td> |
| <td align="left" headers="r5c1-t27 r1c3-t27"> |
| <p>createDDL.jdbc</p> |
| </td> |
| </tr> |
| <tr align="left" valign="top"> |
| <td align="left" id="r6c1-t27" headers="r1c1-t27"> |
| <p>Drop DDL File Name</p> |
| </td> |
| <td align="left" headers="r6c1-t27 r1c2-t27"> |
| <p>Specify the file name of the DDL file that EclipseLink generates that contains SQL statements for dropping tables for JPA entities.</p> |
| </td> |
| <td align="left" headers="r6c1-t27 r1c3-t27"> |
| <p>dropDDL.jdbc</p> |
| </td> |
| </tr> |
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