We can register the Table using Application DBA Data Definitions (AD_DD)
Package from the Back End. You can also use the AD_DD API to delete the registrations
of tables and columns from Oracle Application Object Library tables. To alter a
registration you should first delete the registration, and then re register the table or
column. You should delete the column registration first, then the table registration,you should run the AD_DD procedures against the APPS schema. You must commit your changes for them to take effect.

The AD_DD API does not check for the existence of the registered table or column in the database schema, but only updates the required AOL tables. You must ensure that the tables and columns registered actually exist and have the same format as that defined using the AD_DD API. You need not register views.

Procedures in the AD_DD Package

1. Procedure REGISTER_TABLE

procedure register_table ( p_appl_short_name in varchar2,
p_tab_name in varchar2,
p_tab_type in varchar2,
p_next_extent in number default 512,
p_pct_free in number default 10,
p_pct_used in number default 70);

2. Procedure REGISTER_COLUMN

procedure register_column (p_appl_short_name in varchar2,
p_tab_name in varchar2,
p_col_name in varchar2,
p_col_seq in number,
p_col_type in varchar2,
p_col_width in number,
p_nullable in varchar2,
p_translate in varchar2,
p_precision in number default null,
p_scale in number default null);

3. Procedure DELETE_TABLE

procedure delete_table (p_appl_short_name in varchar2,
p_tab_name in varchar2);

4. Procedure DELETE_COLUMN

procedure delete_column (p_appl_short_name in varchar2,
p_tab_name in varchar2,
p_col_name in varchar2);

Example of Using the AD_DD Package :

Here is an example of using the AD_DD package to register a flexfield table and its columns:

Though the use of AD_DD package does not require that the table should exist first, it is always better to create one and proceed further. Use the below mentioned script to create the dummy table. Use the APPS User ID to run the below mentioned queries from TOAD or SQL*PLUS.

CREATE TABLE TEST_DESC ( RESOURCE_NAME VARCHAR2 (150),
RESOURCE_TYPE VARCHAR2 (100),
ATTRIBUTE_CATEGORY VARCHAR2 (40),
ATTRIBUTE1 VARCHAR2 (150),
ATTRIBUTE2 VARCHAR2 (150),
ATTRIBUTE3 VARCHAR2 (150),
ATTRIBUTE4 VARCHAR2 (150),
ATTRIBUTE5 VARCHAR2 (150),
ATTRIBUTE6 VARCHAR2 (150));

BEGIN
AD_DD.REGISTER_TABLE (‘FND’,’TEST_DESC’,’T’);
END;

BEGIN
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’RESOURCE_NAME’, 1, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’RESOURCE_TYPE’, 2, ‘VARCHAR2′, 100, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE_CATEGORY’, 3, ‘VARCHAR2′, 40, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE1′, 4, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE2′, 5, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE3′, 6, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE4′, 7, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE5′, 8, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
AD_DD.REGISTER_COLUMN (‘FND’, ‘TEST_DESC’,’ATTRIBUTE6′, 9, ‘VARCHAR2′, 150, ‘Y’, ‘N’);
END;

Do not forget to COMMIT after running the above steps.
The table is now ready to be used in Oracle Alerts or Flexfields.
Frequently asked questions ???

1. What is the use of AD_DD package?
2. Why do we need to register the table with oracle applications?
3. Will my table get deleted if I use Delete table procedure of AD_DD package?
4. Do I need to register all the columns of a table?
5. How can I see the code of AD_DD Package?