TABLE DEPENDENCIES

Is there any v$view or sys views or oracle packages to know the dependencies of columns of a table for e.g what columns of a table are used by which views, procedures, triggers...
Any 3rd party software

Once you have switched to use Oracle Designer 6i (or even Oracle Repository), you will also have the Dependency Manager available. This tool can parse any piece of code (SQL, PL/SQL, Java, FMB, RDF, PLL), any structured definition of Tables/Views/Snapshots, Packages/Procedures/Functions and any DDL scripts (create table, create package etc.) for dependencies on other objects (either database objects or file objects such as librabries, icons etc.).
The dependency manager is also a browser like tool that presents all dependencies in a user-friendly way.
Currently the tool does not work directly against a database, so in order to benefit from it for existing database applications, you would have to design capture database definitions.

Similar Messages

Recreating a table with child table dependencies

Hi.
I have two tables P (Parent) and C (child), with foreign key dependencies. How can I recreate the P table without losing the child dependencies?
Thanks in Advance.

934086 wrote:
Well I got this as an interview question. So what I guess what it means is to recreate the table for administrative purposes (maintenance/defragmentation etc) and later recreate the dependencies in to the C table.If this is a good interviewer, they will be expecting you to ask some questions to find out the restrictions on what you're allowed to do.
Obviously you could extract any dependency information from the data dictionary, so it won't be "lost". Then you could switch the database into restricted mode and/or shut down the listener. Drop any RI constraints, recreate table, recreate constraints, restart listener, take database out of restricted mode. However, this might be a catastrophic strategy from the perspective of the business - so if you try to answer the question without first asking questions (or at least starting with "there are various methods, depending on the restrictions you need to impose from a business perspective, for example ...)
Regards
Jonathan Lewis

How to check table dependencies ?

Hi All,
I am looking for a query , which tell about table's dependencies ?
I wonder, if there is any table_dependencies dictionary view , but I doubt for that.
hare krishna
Alok

Small example:
[email protected]> select name, type, referenced_name, referenced_type from user_dependencies
2 where referenced_type = 'TABLE'
3 /
NAME TYPE REFERENCED_NAME REFERENCED_TYP
E
MOBVIEW3 VIEW DUAL TABLE
MOCK_PRO PROCEDURE DUAL TABLE
PUSER PROCEDURE DUAL TABLE
SMP_VDD PACKAGE BODY DUAL TABLE
SMP_VDM_NOTIFICATION_PKG PACKAGE BODY DUAL TABLE
SMP_VDN PACKAGE BODY DUAL TABLE
SMP_VDE PACKAGE BODY DUAL TABLE
SMP_VDJ PACKAGE BODY DUAL TABLE
SMP_VDS PACKAGE BODY DUAL TABLE
FILLMAIN PROCEDURE MAIN TABLE
P_PROC1 PROCEDURE JOBS1_HIST TABLE
SHUTDOWN_TRIGGER TRIGGER SHUT_TABLE TABLE
P_PROC1 PROCEDURE JOBS1 TABLE
START_TRIGGER TRIGGER START_TABLE TABLE
P PROCEDURE EMP TABLE
P_PROC2 PROCEDURE EMP TABLE
Best Regards
Krytian Zieja / mob

How to use table dependencies?

hi all
I have got a question.
I have made 2 additional fields for the transaction CBIH82 ( for creating an incident ).
Those 2 fields are equipment and equipment description.
The idea for these 2 fields is that the description fields show the description of the chosen equipment.
So, when a user chooses an equipment, the first field is filled with an equipment number and via this number the
description which belongs to it should be retrieved from the master data.
But so far i had not seen a method to accomplish this. There is a solution which is ' object dependencies'
When you use this, you can set a value in another field with help of the value of fields which has this object dependency
But not do any thing wth tables or so.
I have searched for user exits, but also did not find any thing. And i have not got another good idea.
So, do you have a good idea? How to do this?
Kind regards,
Anton Pierhagen

Hello Anton,
If you refer to the "Check Table" option under "Values" please consider this (From the F1 Help):
"Check table
Name of a table that contains the allowed values for the characteristic.
This table can have exactly one key field. Tables that do not conform to this specification are not accepted. This can can also contain a client.
If you want to check values using a table that does not conform to this specification, you can use a function module to define the check table."
If you want to use a function module (like it is done for the phrases in EH&S TR CG02) please read the F1 Help for the field "Function".
An example check function is C14K_PHRASECHARACT_CHECK.
In general to have two chracteristics - one containing the key, the other the description for the key is a bit tricky and I think you would need work with global variable in the functions assigned to the both characteristics.
Wouldn't it be OK to just display the description and a have a good search help?
Greets
Mark

Constraints not visible under tables/dependencies

Hi,
when i open dependencies i see only type 'package body', 'trigger' but not any of the constraints pointing at this table.
i am using sql developer 1.5.5 and server version Oracle9i Enterprise Edition Release 9.2.0.8.0 - 64bit Production
E
Edited by: user7742585 on Jul 31, 2009 1:01 AM

Sorry, don't know anything about Macs.
You can try resetting to factory defaults by backing up/deleting the SQL Developer folder somewhere under your user profile (if that is called the same way on the Mac).
Hope that helps,
K.

In ER DIagram using toad( how can i link two tables)

Hi,
Any Toad expert can guide me that how can i link two tables in Toad in ER Diagram to show the relationship between two tables.
Thanks

Hi,
I hope there is foreign key relationship in tables, if so then you can click on "Find table dependencies" icon which will draw lines between them.
~Vinod

Tool for viewing the relation between tables.

Hi,
I imported the schema dump in Oracle 10g R2 DB, there are about 800 plus tables in that schema. I would like to know the relataion between tables.So,What tools are available for viewing the relation between tables?. I have TOAD, and Oracles SQL Developer tolls, if there are any free tools for the same, please let me know the URLs.
Regards,
Sabdar Syed.

Hmmm, for free, except what gave Eric earlier, not easy...
Here already discuss about that :
Re: Table Dependencies
Nicolas.

Impact of creating a non-clusterd index on a huge transaction table?

Hello Everyone,
We have a transaction table containing 10 million records and everyday a million records will be inserted. We don’t have any clustered index on this table as this is a transaction table (more than 10 columns to uniquely identify a row). We
do have some SPs which in turn some reports getting generated using this table. In order to improve the performance of an SP, we created a non-clustered index on this table and we found a huge performance gain.
Here comes my question - will this (creation of non-clustered index) impacts my table data load performance or other reports generation?
Any suggestions will be appreciated.
Many Thanks!
Rajasekhar.

Hello Rajasekhar,
First identify this table and corresponding columns usage. Through SP_depends system procedure you can identify this table dependencies.
Then look at complex queries and it's execution plans. You can get an output recommendations of appropriate missing indexes.
Now you can try to create appropriate indexes. Always I suggest you to limit the index count if you are inserting/updating large volume records. Also if possible create clustered index.
One more option, you can horizontally partitioned the table and move data to multiple filegroups. Based of range of data your query performance also improve a lot.
To apply partition for existing table, you should take backup and recreate from scartch.
Check this link : http://www.mssqltips.com/sqlservertip/2888/how-to-partition-an-existing-sql-server-table/
Best Regards,
Ashokkumar.
Ashokkumar

Visualize schema (table) structure

Hi,
I am in the very early stages of working with oracle, but my improvments are getting more.
Now I got stuck at, perhaps 3rd party tool support.
My question is connected to this screenshot:
http://www.warfrog.com/hibernatetutorial/images/middlegen.gif
Does anybody know, if there are tools, doing smiliar visualization of the table dependencies like this?
Thanks a lot for your help.
Regards Johannes

Johannes,
The ER Diagram tool in TOAD can provide a graphical representation of your server model. Despite the name, it does not produce a real ERD, but it does create a passable server model diagram.
Kind regards,
Russ

Creating Objects

Hello-
I have created an NOT INSTANTIABLE NOT FINAL object "segment_t" (as what would be called an abstract base type in C++). I have created an object UNDER the segment_t type named phone_t which will create a phone segment. Everything works and life is good!
But, alas, when I modify the segment_t package specification (segment.pks) file and attempt to run/compile it, I get a message telling me that Oracle will not update/replace a TYPE which have TYPE or TABLE dependencies. Life is not as good. I have tried to DROP phone_t, and DROP TYPE phone_t to no avail.
So, (1) how do I get rid of the dependencies so I can remake the base class specification and (2) is there anything akin to "make" from the UNIX world to do this for me? If not, I suspect a will need to write a script file to drop all dependencies and make all of the segments in order (there are over 40 segment types in all).
Thanks for your help.
--greg
Running Oracle 9.2 on an HP-9000 UNIX system.

Congratuations: you have run into possibly the most annoying aspect of Oracle's object implementation (although not supporting private attributes or functions becomes more annoying when we try to actually build a working app out of objects).
You will have to drop all the dependent objects in order to create or replace the base objects. The reason for this is that object DDL is the same as table DDL (we cannot drop the parent table in a foreign key relationship whilst the constraint's still in force) rather than the procedural ddl that might seem more appropriate.
So building a script (or script of scripts) to do this is a darn good idea. There is no official Oracle equivalent of make but many people like Ant (which is an open source java variant of make with added XML configuration files, which presses so many fashionable buttons it makes geeks drool).
I don't know why DROP TYPE phone_t; doesn't work. It ought to (see below). What error message do you get?
Cheers, APC
SQL> CREATE TYPE segment_t AS OBJECT (col1 number) NOT INSTANTIABLE NOT FINAL;
2 /
Type created.
SQL> CREATE TYPE phone_t UNDER segment_t ();
2 /
Type created.
SQL> DROP TYPE phone_t
2 /
Type dropped.
SQL> CREATE OR REPLACE TYPE segment_t AS OBJECT (col1 number
2 , MEMBER FUNCTION get RETURN number) NOT INSTANTIABLE NOT FINAL;
3 /
Type created.
SQL> CREATE OR REPLACE TYPE BODY segment_t AS
2      MEMBER FUNCTION get RETURN number IS
3      BEGIN
4          RETURN 0;
5      END get;
6 END;
7 /
Type body created.
SQL> CREATE OR REPLACE TYPE phone_t UNDER segment_t (
2 OVERRIDING MEMBER FUNCTION get RETURN number);
3 /
Type created.
SQL> CREATE OR REPLACE TYPE BODY phone_t AS
2      OVERRIDING MEMBER FUNCTION get RETURN number IS
3      BEGIN
4          RETURN self.col1;
5      END get;
6 END;
7 /
Type body created.
SQL> DECLARE
2      o phone_t;
3 BEGIN
4    o := phone_t(8989);
5    dbms_output.put_line(o.get);
6 END;
7 /
8989
PL/SQL procedure successfully completed.
SQL> spool off

New ECC 6.0 system on z/OS - DB2 - good choice?

Hi
We are considering a new ECC 6.0 system on z/OS - DB2. Any experiences with the advantages/disadvantages of this platform would be most helpful.
Thanks in advance.
Mike

Omer certainly has more experience with DB2 for z/OS and running SAP on it. He has written lots of great articles on ittoolbox that have been really helpful. In response to his post:
1. rdisp/wp_auto_restart is defaulted to zero, meaning that SAP will never automatically restart a work process. SAP note 101717 (which details how/why to change the default) says "The solution described here should only be used if all other options are exhausted since this is not an elimination of the actual cause of the problem but only a workaround.". I have not personally experienced needing to change this parameter from the default outside of DB2 for z/OS. It is recommended in the SAP for DB2 z/OS Admin Guide to set this parameter to the equivalent of 1 day in seconds. This would seem to acknowledge either a known and unfixed memory leak in DB2 for z/OS (up to and including v9), or is perhaps a precaution because of the 2 gig thread storage limit. As I stated before, it adds no value and causes useless reconnect information to be put into the SM21 system logs.
2. I think perhaps our issue with extents is because our storage system was not setup from the beginning to enable extent constraint relief. Setting the secondary extent quantity to a sufficient size for each tablespace is certainly one way to ensure that extents don't become a problem. With over 70,000 tables in ECC 6.0, even trying to manage 1% of the tables this way could be quite time consuming. Setting ZPARM MGEXTSZ to the SAP recommended value of yes allows DB2 to use the sliding algorithm and make each additional secondary extent bigger and bigger. Even so, we've had surprises (and thanks to Murphy usually off-hours) where there was still plenty of space left on our DB2 volumes but the total number of extents for a particular dataset or the total extents on a non-full volume exceeded the maximum. All that really says is that SAP on DB2 for z/OS appears to require more careful storage monitoring than on other platforms. It does allow for more flexibility, however.
3. Being able to manage individual tables and/or tablespaces is an advantage, though it does not come without the cost of additional overhead for the DBA. As for restoring and individual table, this is certainly possible but it would be best practice to work with SAP support to make sure all table dependencies are resolved and that data integrity is maintained when restoring an individual table. The DBA should not be expected to know about all of the table relationships with the 70,000 tables in ECC 6.0. That would seem to limit the advantages of an individual table restore.
4 & 5. I don't have a lot of experience with virtual memory monitoring on z/OS, but I can understand why it would have vastly superior capabilities compared to other platforms. When memory is expensive (as in thousands of dollars per gigabyte) and when DB2 still has some components which are restricted to 2 gig, it absolutely makes sense to have very detailed tools to manage memory usage.
Regarding sizing... I'm sure that mistakes are made quite often regardless of platform. It was exactly my point that it does not usually add significant cost to increase the resources on commodity hardware. My experience has been that commodity hardware vendors usually size the hardware too big anyway. Whether that is to allow some flexibility or simply to increase their sales, I am not sure. Contrast that to this recent success story for SAP on zSeries:
http://www-01.ibm.com/software/success/cssdb.nsf/cs/STRD-7NGMA9?OpenDocument&Site=gicss67sap&cty=en_us
"Colacem had to come up with more money for the upgrade - but IBM offered it to us at a price that we regard as very fair"
This customer had to upgrade to a Z10 after their Z9 ran out of gas, right in the middle of their first SAP implementation. I can only guess that the additional cost was not insignificant.
6. Thus far we have not experienced any strange problems with other databases and SAP, but we are using database versions that have been certified by SAP for 4+ years. In fairness though, we're not a huge implementation with individual tables in the terabytes.
Being on a platform with a small percentage customers has its disadvantages in trying to get product changes made as well. As an example, where is the Adobe Document Services support for Linux on zSeries? I know of at least one other customer that wanted this. Although adobe is now available for other 64bit platforms that run SAP, it is still not available for Linux on zSeries.
There is also the issue of third party SAP partners (Vertex, BSI, SAP's own WWI product) and the platforms they support. Very few support Linux for zSeries, so there will be additional commodity hardware servers in the datacenter. That results in the added complexity of supporting more platforms.
The one area of concern I do have about running SAP on a non-zSeries platform is the quality of SAP support for other platforms. The zSeries SAP support team is phenomenal and I can't say we've gotten even close to the response times or the quality of answers for non-zSeries related OSS messages.
All that said, I am just offering one person's experiences and opinions. Obviously I am not overly impressed with the value delivered vs the cost of zSeries.
Brian

Problem with Not equal to: anything connected to BASIS??

Dear all,
I have a problem when I use '<>' or '><' or 'NE' to write dependencies. The function modules CUKD_XREF_OBJ_CHARC_SVAL and CUKD_GET_XREF dont work correctly. Is there any problem with in the SAP . Do I need to apply some Patch? Anything connected to Basis. Please help.
Thanks&Regards,
Manjula.S
Edited by: Manjula on Dec 3, 2008 11:45 AM

Hi ,
Please see the code below. I have created a structure ZCHAR_TAB with 2 fields ATNAM and ATWRT.
I have a class TEST_CLASS and characteristics TEST1 with values SIMPLEX , DUPLEX and second characteristic TEST2 with values GREEN, BLUE,ORANGE, BROWN. Lets say Write 1 dependency for
Orange and include 'NE'. The object dependency number from CUKD_XREF_OBJ_CHARC_SVAL are not coming correclty.
FUNCTION ZCHARACTERISTIC_VALUES.
""Local Interface:
*" IMPORTING
*"     REFERENCE(ATNAM_IN) TYPE ATNAM
*"     REFERENCE(ATWRT_IN) TYPE ATWRT
*"     REFERENCE(ATNAM_OUT) TYPE ATNAM
*" TABLES
*"      ZCHAR_TAB STRUCTURE ZCHAR_TAB
DATA : GT_CABN   TYPE STANDARD TABLE OF CABN   WITH HEADER LINE,
         GT_CAWN   TYPE STANDARD TABLE OF CAWN   WITH HEADER LINE,
         GT_CUOB   TYPE STANDARD TABLE OF CUOB   WITH HEADER LINE,
         GT_CUKB   TYPE STANDARD TABLE OF CUKB   WITH HEADER LINE,
         GT_CUXREF TYPE STANDARD TABLE OF CUXREF WITH HEADER LINE,
         GV_ATINN LIKE CABN-ATINN,
         GV_ATWRT LIKE CAWN-ATWRT.
GV_ATWRT = ATWRT_IN.
Selecting data from the CABN table for the internal characteristic numbers
SELECT *
         FROM CABN
         INTO TABLE GT_CABN
         WHERE ATNAM IN (ATNAM_IN,ATNAM_OUT).
IF SY-SUBRC EQ 0.
Reading data from GT_CABN internal table to get the internal number of the
Output characteristic
    CLEAR GT_CABN.
    READ TABLE GT_CABN WITH KEY ATNAM = ATNAM_OUT.
    IF SY-SUBRC EQ 0.
      GV_ATINN = GT_CABN-ATINN.
    ENDIF.
Selecting Values of the Output characteristic from the CAWN table
    SELECT *
           FROM CAWN
           INTO TABLE GT_CAWN
           WHERE ATINN = GV_ATINN.
    IF SY-SUBRC EQ 0.
      IF NOT GT_CAWN[] IS INITIAL.
Selecting the Dependency assignment numbers from the CUOB table
        SELECT * FROM CUOB
                 INTO TABLE GT_CUOB
                 FOR ALL ENTRIES IN GT_CAWN
                 WHERE KNOBJ = GT_CAWN-KNOBJ
                 AND   LKENZ = ''.
      ENDIF.
    ENDIF.
ENDIF.
LOOP AT GT_CABN WHERE ATNAM = ATNAM_IN.
Retrieving all the Dependencies based on the Input Characteristic
into GT_CUKB internal table
CLEAR : GT_CAWN.
READ TABLE GT_CAWN WITH KEY ATINN = GT_CABN-ATINN.
    CALL FUNCTION 'CUKD_XREF_OBJ_CHARC_SVAL'
      EXPORTING
        FROM_DATE    = SY-DATUM
        OBJTYPE      = ' '
        OBJKEY       = ' '
        ATINN        = GT_CABN-ATINN
        TO_DATE      = SY-DATUM
      TABLES
        DEPENDENCIES = GT_CUKB
      EXCEPTIONS
        NO_DEP_FOUND = 1
        OTHERS       = 2.
ENDLOOP.
LOOP AT GT_CUKB.
    CLEAR GT_CUOB.
    READ TABLE GT_CUOB WITH KEY KNNUM = GT_CUKB-KNNUM.
    IF SY-SUBRC EQ 0.
      CLEAR GT_CUXREF. REFRESH GT_CUXREF.
      CALL FUNCTION 'CUKD_GET_XREF'
        EXPORTING
          KNNUM        = GT_CUOB-KNNUM
          DATE         = SY-DATUM
        TABLES
          XREF_TAB     = GT_CUXREF
        EXCEPTIONS
          NO_REC_FOUND = 1
          OTHERS       = 2.
      LOOP AT GT_CUXREF WHERE ATWRT = ATWRT_IN.
        CLEAR : GT_CAWN.
        READ TABLE GT_CAWN WITH KEY KNOBJ = GT_CUOB-KNOBJ.
        IF SY-SUBRC EQ 0.
          CLEAR : GT_CABN.
          READ TABLE GT_CABN WITH KEY ATINN = GT_CAWN-ATINN.
          ZCHAR_TAB-ATNAM = GT_CABN-ATNAM.
          ZCHAR_TAB-ATWRT = GT_CAWN-ATWRT.
          APPEND ZCHAR_TAB. CLEAR ZCHAR_TAB.
        ENDIF.
      ENDLOOP.
    ENDIF.
ENDLOOP.
ENDFUNCTION.

DBMS_REDEFINITION dependent objects issue , please help.....

Hello Guru's,
Today I have tried with DBMS_REDEFINITION package, I'm successfully partitioning the existing table, but there are some dependent objects are missing after completing the redefinition package.
Im Using 11g R2.
Please assist me , in which stage it went wrong, Actually my table is have around 12 dependent procedures, functions, Synonyms how ever, after completing the redefinition when i query the all_dependancies I m getting only 9 objects with correct status.
Please suggest me that what happened to remaining 3 dependent objects. Its a bit urgent.
Steps I followed:
1.Created a bkp table of same as existing table A.
2.EXEC Dbms_Redefinition.Can_Redef_Table(USER, 'A'); ---No errors got.
3.DBMS_REDEFINITION.start_redef_table(uname      => USER, orig_table => 'A',int_table => 'A_BKP'); ----No errors
4. dbms_redefinition.sync_interim_table(
    uname      => USER,
    orig_table => 'A',
    int_table => 'A_BKP'); ----No errors got.
5.Manually Added constraints on A_BKP what ever constraints on A .--- No errors
6. Manually Added Indexes on A_BKP what ever indexs are there on A columns ----No errors
7.EXEC DBMS_STATS.gather_table_stats(USER, 'A_BKP', cascade => TRUE); ---No errors
8.dbms_redefinition.finish_redef_table(
    uname      => USER,
    orig_table => 'A',
    int_table => 'A_BKP'); ----No errors
9. Manually Droped A_BKP table
10. Manually Renamed all constraints and Indexex to the original names -----No errors
11. Queried Select count(*) from A;
Then I queried in all_dependencies, now there is mis match between before partitioned table dependencies and after ,
Please tell me whats wrong with this steps , its a bit urgent, any fruther steps to be taken ?

No I have checked that missing objects there are present in the DB and when i query in All_dependancies with that referenced name, it will giving less rows than original

Looking at dependencies for a table gets Error ORA-01436: CONNECT BY loop

I have just tried looking at the dependencies for a table and I received an "ORA-01436: CONNECT BY loop in user data.
Please let me know if there are any fixes or work arounds for this problem.
Thanks
Sunil

Looks like there is another posting on this.
ORA-01436 in Dependencies
Because the query uses CONNECT BY and there is a circular reference it errors out. If it didn't, there would be an infinite number of results.
This is the query that Oracle is using: SELECT owner, object_type, object_name, object_id, status , decode(replace(object_type,' ','_'),'PACKAGE_BODY','PACKAGE',replace(object_type,' ','_')) type_link
FROM sys.all_objects
WHERE object_id IN (
          SELECT object_id
             FROM public_dependency
           CONNECT BY PRIOR object_id = referenced_object_id
           START WITH referenced_object_id = :OBJECT_ID ) pulled from sql_dev_root/jdev/extensions/oracle.dbdev.oviewer.jar, editors.xml
I am not a connect by pro, so I can't tell you how to alter this to make it stop digging when it encounters an infinite loop, but maybe someone else can. In other tools, it normally dynamically pulls this data into a tree so it is only querying one level at a time.
This happens if for example MY_TABLE depends upon MY_PACKAGE and vice versa:
--MY_TABLE
--MY_PACKAGE
    --MY_TABLE
      --MY_PACKAGE
        .... Hopefully someone on the sql dev team has a solution to this and can get it fixed in a later release.

What is the Table/View name for getting the Database Object Dependencies

I am running the Database Object Dependencies report to get the reference of Database Object and their respective Application Component.
Applications xxxx -> Application Reports -> Shared Components -> Database Object Dependencies -> Compute Dependencies
I want to develop a report for the same purpose, Just want to know what is the APEX Tables / Views they are using to run this report, so that I can use the same Tables to create my own report.
Thanks,
Deepak

Hi Andy,
when I am using the following query...I am not getting any result...
select name, type, owner
from all_dependencies
where referenced_owner = 'APEX_030200'
and referenced_name = 'WWV_FLOW_PATCHES'
AND OWNER= 'XXXXXXX' --- (addeed this to the where clause)
I modified the query.....I am getting the result.....
select name, type, owner
from all_dependencies
AND OWNER= 'XXXXXXX'
- But I am not getting which database object(table/view) is using which Application Page/Component like we have in Database Object Dependencies.
- Also what is this REFERENCE OWNER & REFERENCE_NAME ----
referenced_owner = 'APEX_030200'
and referenced_name = 'WWV_FLOW_PATCHES'
I am little bit confused, Can you pl expalin me in details......
Thanks,
Deepak

TABLE DEPENDENCIES

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