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Oracle Tips by Burleson 

Generating the DDL for the Application

HTML DB provides an easy way to export the Data Definition Language(DDL) from the application’s parsing schema into a file.  With this utility, database objects can easily be moved from the development server to the production server.

1.       To export the DDL, navigate to the Generate DDL page via SQL Workshop à Utilities à Generate DDL.

2.       The Schema Objects page will show a list of schemas available in which to create a DDL script.  The example application will only have the EASYHDB schema.  Click the Create Script button.

3.       On the Schema page, choose the EASYHDB schema and click Next.

4.       On the Object Type page:

  • Output: Select the Save As Script File option.

The Display Inline option can be chosen the DDL is to be generated to get a feel for how the schema objects look.

  • Object Type: Choose the object types for which to create the DDL.  The available choices are shown in Figure 14.1.

  • Click the Next button.

It is possible to generate the DDL at this point, and it will create all objects of the type chosen.  The choice for this example is going to be reduced to a subset of the objects, so click Next.

The Object Name page will show a list of all the objects available for DDL generation.  On the prior page, shown in Figure 14.1, all the options were chosen on purpose in order to show the objects available on the Object Name page.

5.       On the Object Name page, select the items to generate DDL for and click the Generate DDL button.

6.       On the Script page enter EasyHDB_DDL for the Script Name.  Providing a description is optional.  Then, click the Create Script button.

So far, the DDL generation has been run and the script has been saved to the Script Repository with the name EasyHDB_DDL.  The DDL script will be created and stored in the Script Repository.  From here, the script can be exported to a file on the operating system.

The above book excerpt is from:

Easy HTML-DB Oracle Application Express

Create Dynamic Web Pages with OAE

ISBN 0-9761573-1-4   

Michael Cunningham & Kent Crotty


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