Ever want to drop an old procedure, but you didn't know if it was being used by some other code, perhaps in another schema? Simply check ALL_DEPENDENCIES, right. Except I hate typing those long column names. And what if I want to traverse through the dependencies? So of course, I wrote some scripts.

Never sure what's a dependency vs a reference, so I named them the way I think it works, but they might be backwards.

SHOW_DEPENDENCIES - shows what objects my code (object) uses, and continues down the tree.
SHOW_REFERENCES - shows what objects call my code (object), and continues up the tree.

Both take two parameters: &1 = owner, &2 = object (if you don't know the owner, try the OBJ_TREE script I posted earlier). And both scripts work on the underlying sys objects, so you need to be a DBA (I do a "connect by" on sys.dependency$, since the connect by on ALL_DEPENDENCIES never finished). DEPENDENCIES stops when it finds something owned by SYS, because it just gets too messy to keep showing things (remove the "d_onam <> 'SYS'" clause near the bottom to see for yourself).

An example using some FLOWS_010500 objects (htmldb provides such nice examples):
SQL> @show_dependencies FLOWS_010500 p
.
.PROCEDURE FLOWS_010500.P
. PACKAGE FLOWS_010500.WWV_FLOW_LANG
. SYNONYM PUBLIC.HTP
. PACKAGE FLOWS_010500.WWV_FLOW_FILE_MGR

PL/SQL procedure successfully completed.

here's what happens if I remove the check against SYS objects
SQL> /
.
.PROCEDURE FLOWS_010500.P
. PACKAGE SYS.STANDARD
. PACKAGE FLOWS_010500.WWV_FLOW_LANG
. PACKAGE SYS.STANDARD
. SYNONYM PUBLIC.HTP
. PACKAGE SYS.HTP
. PACKAGE SYS.STANDARD
. PACKAGE FLOWS_010500.WWV_FLOW_FILE_MGR
. PACKAGE SYS.STANDARD
. PACKAGE SYS.SYS_STUB_FOR_PURITY_ANALYSIS

PL/SQL procedure successfully completed.

and here's one going the other direction
SQL> @show_references FLOWS_010500 WWV_FLOW_FILE_MGR
.
.PACKAGE FLOWS_010500.WWV_FLOW_FILE_MGR
. PACKAGE BODY FLOWS_010500.WWV_FLOW_FILE_MGR INVALID
. PACKAGE BODY FLOWS_010500.HTMLDB_UTIL
. PROCEDURE FLOWS_010500.P
. SYNONYM PUBLIC.P
. SYNONYM PUBLIC.WWV_FLOW_FILE_MGR
.
.PACKAGE BODY FLOWS_010500.WWV_FLOW_FILE_MGR INVALID

PL/SQL procedure successfully completed.

the REFERENCES script is also nice to find out where a table is used
SQL> @show_references FLOWS_010500 WWV_FLOW_PREFERENCES$
.
.TABLE FLOWS_010500.WWV_FLOW_PREFERENCES$
. TRIGGER FLOWS_010500.WWV_BIU_FLOW_PREFERENCES
. FUNCTION FLOWS_010500.V
. TRIGGER FLOWS_010500.WWV_BIU_FLOW_COLLECTION INVALID
. FUNCTION FLOWS_010500.NV
. VIEW FLOWS_010500.WWV_FLOW_USERS
. SYNONYM PUBLIC.WWV_FLOW_USERS
. VIEW FLOWS_010500.WWV_FLOW_GROUP_USERS
that one continues on for quite some time

These scripts work on versions 9 and 10. Haven't had the chance to test them on 11 yet, so if you do, and they don't work, let me know. Or better yet, fix them for me ;)

Follow the rest of the discussion on my blog

Views: 1038

Attachments:

Replies to This Discussion

By applying some CSS magic, the extra blank lines inside the pre tags are no more. Great posts by the way. Keep them coming :) I'm also adding your posts here to OraNA.info.
thanks for the magic. the output looks much better now

I had not heard of OraNA.info before - I'll have to spend some time over there. Can you update the post over there to link back here (because the scripts aren't there)?
If you click on any post title on OraNA.info, it links back to the original article.
This is great... is there a way to figure out the CRUD operations done on a table by a plsql unit? There are times, when in addition to the depenedency I need to know if the table is updated, or just selected by the unit.

RSS

Oracle Community On

I'm not a fan of advertising, and so I will not be including any advertisements on OracleCommunity.net. However, managing this community does not come without cost! If you are willing to donate to help pay for the monthly community fees and domain services I accept Bitcoin and PayPal donations.

Donate Bitcoins

Badge

Loading…

Blog Posts

Data Mining Can Help Your Business Get a Competitive Edge

Data mining services are a vital part of business growth. Data mining, sometimes referred as knowledge discovery in databases, is the process of digging through data to discover hidden connections, patterns, and anomalies so that future trends can be predicted. The mined data can help businesses in cutting costs, increasing revenues, reducing risks, improving customer relationships, and more.

The diversity and volume of data that is being captured by companies today is staggering. The…

Continue

Posted by Alvaro Dee on September 29, 2016 at 2:17am

7 Benefits of Amazon Product Data Entry Services

An Optimized Creation, Processing and Maintenance of your Amazon Products’ E-catalog Gives you an Edge in the Competitive eCommerce Market.

When you upload your inventory on one of the world’s biggest online marketplaces, what strategy do you employ to survive the competition put forth by popular brands? You optimize your listings to enhance the discoverability of the product. Amazon Product data entry services ensures your product is available in the virtual…

Continue

Posted by Alvaro Dee on September 6, 2016 at 3:08am

Why you Should Include Push Notifications in your Mobile App?

Push notifications are a display of your application’s icon and a message in the status bar of your device. We stress the importance of including push notifications in your mobile application for three major reasons:-

  1. Push Notifications allow direct marketing to your clients: When a customer downloads your application and enables push notification, it gives you direct…

Continue

Posted by Alvaro Dee on August 23, 2016 at 10:50pm

Amazon Virtual Assistant Services for Efficient e-store Management

Virtual assistant (VA) is a term that has been buzzing around in the business world for quite some time now. Essentially, a VA is skilled administrator who takes care of your technical/creative business support activities while working offsite. If you already have a designated eCommerce store on Amazon seller central or wish to start one, an Amazon VA will help you manage the store and update it regularly with utmost precision.

Amazon VA creates and updates the…

Continue

Posted by Alvaro Dee on August 23, 2016 at 2:56am

© 2016   Created by Steve Karam.   Powered by

Badges  |  Report an Issue  |  Terms of Service