Generate Alter Table with ERWin

Hi all,
Is the a way to Generate Alter Table with ERWin.?
I need this to generate release of a database, thats contains only
the updated tables.
thanx

If you have a stored/saved model of the database or the original schema structures in a script file, you can use ERWin to compare that to the current database. You can have ERWin generate a script the contains the differences which in most cases would be alter statements.

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ALTER TABLE vs DROP/CREATE statements

Hello Everyone,
I have created a script in order to update our database which includes adding new columns to a table. However, database changes and script generation must now be done using the Erwin data modeler and script generated using a compare option (within Erwin) which compares the model with the actual database.
I had a script of a few lines with a few ALTER TABLE ...ADD COLUMN statements to add the new columns.
Now, in Erwin, instead of generating 'ALTER TABLE...ADD COLUMN statements, Erwin has generated an ALTER TABLE...RENAME and CREATE TABLE statements which as a side effect will drop/re-create the table, all of it's indexes, constraints, foreign keys, etc.
Instead of a few simple "hand written" lines to run a fast script, the script is a few pages long with all of those DROP/CREATE statements, which makes the script way too much complicated and takes much longer to run.
And this, even though the Erwin option "USE ALTER TABLE ADD COLUMN" statement to create columns.
I was told that the DROP/CREATE is normal and that this is the way it should be done.
Am I out of it by thinking that it should use ALTER TABLE ADD COLUMN statements to add new columns to a table and not the DROP/CREATE methodology ? Am I missing something ? Do these new "data thinkers" know something that I am missing ?
Makes me think of the 80s when people were generating dBase application with the included application generator and were ending up with all kinds of useless and non efficient code.
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Thank you both for your replies.
Neil,
I didn't think that adding new blank columns using the ALTER TABLE ADD COLUMN statement would make the table more fragmented than it already was to begin with.
I would have think that this kind of maintenance would take place on it's own, outside of a new deployment release.
I have always used the ALTER TABLE ADD COLUMN instead of the DROP/CREATE TABLE statements to add new columns to a table because of the simplicity, speed and lower risk involved compare to dropping a table and all of it's objects then re-create all of them and doing an import.
What do any of you do when you need to add new columns to a table ? Use the drop table and re-create or the ALTER TABLE ADD COLUMN ?
Any comments welcome.
Thanks again.

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Generate DDL - change is a new column and I want to generate a alter table

Morning all,
I have searched and looked all over the data modeler and I cannot find this option ... yet I did find it easily in Designer.
I hope you can help me.
SQL Developer Data Modeler v3.0.0.665.
I have added a new column to a table and when I generate the DDL I would like it to be an alter table add column rather than a create table.
This feature is in Designer so I would think it would be in data modeler.
Just incase my description is not clear here are the high level steps so it is clear.
1. create the logical model
2. create the relational from the logical.
3. create the physical from the relational.
4. generate DDL and run in database. At this point I go to production with my system and all is well.
5. At this point we have an enhancement request. For the model it will be a new column in a table.
6. update logical model.
7. update relational from logical
8. update physical from relational
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This is something I do alot as all my models are in production. I cannot find how to do this step of getting data modeler to generate the alter.
Designer does this exceptionally well.
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Chris ....

Hi Chris,
you need to compare your model against database - import from database into same relational model and use "swap target" option - in this case "alter statements" against database will be generated.
You can look at demonstrations here http://www.oracle.com/technetwork/developer-tools/datamodeler/demonstrations-224554.html
Probably this particular one will be most helpful http://download.oracle.com/otn_hosted_doc/sqldev/importddl/importddl.html
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After Database creation, need to upgrade Peopletools from the delivered version 8.46 to 8.49
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Bu when generating the scripts with user PS/PS, the App Designer got error message as following:
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Edited by: Andy xu on 2012-5-14 上午2:22

thank you for your reply.
client pc is running on windows 7 and UAC is already disabled.
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I search on oracle website and found a page said this maybe a bug and be fixed from 8.49.11, this is why it is working on 8.49.13, and the wordaround solution is use non-vista pc, such as windows xp. :)
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Hello,
We're deleting millions of redundant rows from a particular table in our live 10g database. This is being done online because the downtime would be unacceptable. The table in question has 30 child tables, so for speed I am disabling the foreign keys using ALTER TABLE DISABLE CONSTRAINT before the deletion (we haven't had any constraint violations for ages). Without this, deletion takes about 1 second per row i.e. a very long time.
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Edited by: edwiles on Feb 4, 2009 6:02 AM

look suggestions in the similar thread:
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How to generate the insert staments of all schema tables with one DBPROC

[code]CREATE DBPROC SCHEMA_INSERT_SCRIPT
AS
VAR L_STATEMENT VARCHAR(500) ;
L_COL_NAME VARCHAR(50);
L_ALL_TAB_COLS VARCHAR(400);
L_TAB_NAME VARCHAR(50);
L_SQL VARCHAR(1000);
TRY
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        WHERE T.OWNER='SCOTT2'
        AND T.TABLENAME = C.TABLENAME
        AND T.TABLENAME='DEPT';
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SET L_ALL_TAB_COLS = L_ALL_TAB_COLS || L_COL_NAME || ',';
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till now i am getting output as
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values (10,'SALES','NEWYORK')
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with this above Procedure,i want to generate the insert statments of the table.
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Cannot alter partitioned table with spatial column in Oracle 11.2.0.2.0

Hello,
I possibly discovered a bug in Oracle 11.2.0.2.0
This script works fine with Oracle *11.2.0.1.0*:
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BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE     11.2.0.2.0     Production
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
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Metalink does not have any references for this error - please raise SR with Oracle support.

Generate a report with three table

hi Friends,
i have three table
1-
CREATE TABLE "TRANSACTION_DETAILS"
(     "S_NO" NUMBER,
     "BILL_NO" NUMBER,
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     "PARTY_NAME" VARCHAR2(1000),
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     "QTY" NUMBER,
     "RATE" NUMBER,
     "AMOUNT" NUMBER,
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2-
CREATE TABLE "LAB_WORK_DTL"
(     "ID" NUMBER,
     "BILL_NO" NUMBER,
     "BILL_DATE" DATE,
     "PARTY_NAME" VARCHAR2(1000),
"VEHICLE_NO" VARCHAR2(20),
     "WORK_DETAIL" VARCHAR2(4000),
     "LABOUR_AMT" NUMBER,
     CONSTRAINT "LAB_WORK_DTL_PK" PRIMARY KEY ("ID") ENABLE
3-
CREATE TABLE "JOB_CARD_DETAILS"
(     "ID2" NUMBER,
     "BILL_NO" NUMBER,
     "BILL_DATE" DATE,
     "PARTY_NAME" VARCHAR2(1000),
     "VEHICLE_NO" VARCHAR2(20),
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i want to generate a Report of total amout of bill No Like
BILL_NO,BILL_DATE,VEHICLE_NO,SUM(AMOUNT) ,SUM(LABOUR_AMT),SUM(AMOUNT)
I AM USING
select a.BILL_NO,a.BILL_DATE,a.PARTY_NAME,a.VEHICLE_NO,SUM(a.AMOUNT),SUM(b.LABOUR_AMT),SUM(c.AMOUNT) from TRANSACTION_DETAILS a,LAB_WORK_DTL b,JOB_CARD_DETAILS c where a.PARTY_NAME =b.PARTY_NAME and a.PARTY_NAME=c.PARTY_NAME and a.PARTY_NAME =:P38_PARTY_NAME group by a.bill_no,a.BILL_DATE,a.PARTY_NAME,a.VEHICLE_NO,b.bill_no,b.BILL_DATE,b.PARTY_NAME,b.VEHICLE_NO,c.bill_no,c.BILL_DATE,c.PARTY_NAME,c.VEHICLE_NO
ACCORDING TO THIS CODE sum of these column SUM(a.AMOUNT),SUM(b.LABOUR_AMT),SUM(c.AMOUNT) are not correct and there are one more problem if BILL_NO is not in LAB_WORK_DTL JOB_CARD_DETAILS these table then result shows NO DATA FOUND but BILL_NO is avalable in
TRANSACTION_DETAILS this table.
How can i generate this report .
Thanks
Manoj Kaushik

1-
CREATE TABLE "TRANSACTION_DETAILS"
(     "S_NO" NUMBER,
     "BILL_NO" NUMBER,
     "BILL_DATE" DATE,
     "PARTY_NAME" VARCHAR2(1000),
     "VEHICLE_NO" VARCHAR2(20),
     "ITEM_NAME" VARCHAR2(500),
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     "RATE" NUMBER,
     "AMOUNT" NUMBER,
      CONSTRAINT "TRANSACTION_DETAILS_CON" PRIMARY KEY ("S_NO") ENABLE
2-
CREATE TABLE "LAB_WORK_DTL"
(     "ID" NUMBER,
     "BILL_NO" NUMBER,
     "BILL_DATE" DATE,
     "PARTY_NAME" VARCHAR2(1000),
"VEHICLE_NO" VARCHAR2(20),
     "WORK_DETAIL" VARCHAR2(4000),
     "LABOUR_AMT" NUMBER,
      CONSTRAINT "LAB_WORK_DTL_PK" PRIMARY KEY ("ID") ENABLE
3-
CREATE TABLE "JOB_CARD_DETAILS"
(     "ID2" NUMBER,
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     "AMOUNT" NUMBER,
      CONSTRAINT "JOB_CARD_DETAILS_CON" PRIMARY KEY ("ID2") ENABLE
/Can you define the relation between these three tables. I see in your sql you are joining the three table with the column PARTY_NAME. Is that the proper joining condition? Can you explain that.
And also when you say this
ACCORDING TO THIS CODE sum of these column SUM(a.AMOUNT),SUM(b.LABOUR_AMT),SUM(c.AMOUNT) are not correct What exactly do you mean. What is not correct? Can you show some sample data.
And also it would be of great help to all the people here if you format your SQL and use {noformat}{noformat} tag to preserve the format of your code.

Problem with alter table in execute immediate

We have PL/SQL scripts which modify the data structure, add data etc to en existing database. These scripts basically ensure that the db is compatible with what the software expects.
The reason for doing it in PL/SQL rather than SQL script is A) The scripts are launched using GUI so that they are more user friendly. sqlplus is launched as a background process which executes these scripts. All the scripts have EXIT FAILURE WHENEVER SQLERROR as first line to ensure that the control does not hang in the sqlplus background process.
Going from one version to other, we have added a few tables to the database and also modified a few tables. since (i think) DDL is not allowed in PL/SQL block, we had to resort to putting them in EXECUTE IMMEDIATE enclosures.
Now for the real question,
If I create a table using EXECUTE IMMEDIATE clause, I can immediately have insert as a next statement to insert data in this table. but, if I alter the table and add a column to the existing table, I cannot immediately add data to that column, it throws an error saying 'invalid identifier'
At code level, the following is allowed :
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but I get error for the following :
EXECUTE IMMEDIATE 'ALTER TABLE SP_TEST_TWO ADD
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UPDATE     SP_TEST_TWO SET          ANOTHER_COLUMN = 1;
In this case, it says ANOTHER_COLUMN invalid identifier
Does anybody know why?
any workaround will be greatly appreciated.
--SP

Friends,
Thanks to all of you for your help. The spelling mistakes might have occurred becuase i changed the actual script to something 'short and complete' to show the problem.
I could solve the problem by having more than one PL/SQL block within my file. something like :
BEGIN
--alter table statements here
END;
BEGIN
--insert the values in column here.
END;
I am still not sure why the error is presented only on alter table statement and not for create table statement. Probably somebody with the knowledge of oracle internals will be able to throw more light on it. I am trying to get the naswers, if I get the answer, I'll surely post it here.
Regards,
--Saurabh

Generate Alter Table with ERWin

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