Migrating SQL Server development skills to Oracle

Hi all,
I've been working with SQL Server in a development capacity for about 7 years now. I'm no specialist, but I'm comfortable in it and am conversant in SQL Server terminology. I need to pick up similar development skills in Oracle. I don't need to know a lot about DBA stuff, perhaps just a few considerations for performance tuning. I won't be "switching" to Oracle, but rather picking up those skills and working on both platforms for the forseeable future.
What I'm looking for is a book/white paper/website which gives me, as quickly as possible, a direct comparison between SQL Server and Oracle. Some of the things I might want to know are (in order):
- Syntax differences between T-SQL and PL-SQL
- T-SQL functions and equivalent Oracle/PL-SQL functions
- Connection and setup methods (for one, I believe everything in Oracle resides in schemas generally under a single database?)
- An overview of the reasons people would use Oracle rather than SQL Server
Can anyone recommend a book in this regard? Failing that, can anyone recommend a book on Oracle which is, hopefully, more on the concise side and includes a function reference?
Sam

You can start with Oracle doc,
Oracle® Database PL/SQL User's Guide and Reference
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/toc.htm
I don't think there's side by side comparison reference between them. Some syntax is very different.

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I am migrating SQL Server 7.0 Databases on NT to Oracle 8i on Sun 2.6. Is there is any other way other then Migration Workbench.
If Mig Workbench is OK. What are the steps to do Migration.
null

Hi,
You can perform this action with the Oracle Migration Workbench. Just install the Workbench on the same machine as your SQL Server database.
You can then configure the workbench to point to the oracle database on your Sun machine.
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Regards
John

Migrate SQL Server 7.0 to Oracle 8i - Any known issues??

Hi,
I am in the process of migrating SQL Server database to Oracle 8i for testing purpose. When I do migrate SQL Server database to Oracle 8i, am I doing any harm to the exiting SQL Server database? Would the users be able to use SQL Server database as usual?? Are there any known issues in this regard?
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I am migrating from SQL Server 6.5 to Oracle 8.0.5 using
migration Workbench Ver. 1.2.2. The stored procedures are not
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null

Surendra kumar (guest) wrote:
: Oracle Migration Workbench Team wrote:
: : Surendra,
: : It seems like the workbench is trying to use 8i temporary
: tables,
: : which is the default, this option can be switched off.
: : Note that there is an option on the Procedures, Triggers and
: : Views to generate 8i temporary tables, switch this off if
you
: : want to work with 8.0 and have an additional sessionid
column.
: : This option can be set on all procedures (click on the
: procedures
: : category on the SQLServer model pane), or on a per procedure
: : basis (click on the procedure in the left hand SQLServer
model
: : pane).
: : Hope this solves your problem,
: : Turloch
: : Oracle Migration Workbench Team
: : Surendra Kumar (guest) wrote:
: : : I am migrating from SQL Server 6.5 to Oracle 8.0.5
using
: : : migration Workbench Ver. 1.2.2. The stored procedures are
: not
: : : migrated properly where temporary tables are used to store
: the
: : : intermediate results of a query on SQL Server 6.5 side. I
: want
: : : to look at the coding to create a temporary table with
: : sessionid
: : : as part of table to make it unique for the session and the
: user
: : : on the oracle side using DBMS_SQL package. Any body can
give
: me
: : : the coding ?
: : Oracle Technology Network
: : http://technet.oracle.com
I have used the correct option and the Migration Workbench is
not creating the DDL statements correctly for the creation of
table. Whatever may be the problem I want use DBMS_SQL for
creation of unique table names with session id as part of the
table name. I need a sample script to use session id as part of
table name and to vary the name of the table dynamically in
DBMS_SQL. It is not accepting the variable name for table name
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null

Migrating SQL Server 6.5 to Oracle 8

Hi,
I am currently converting some stored procedures from SQL Server 6.5 to Oracle 8 (PL/SQL). I am having trouble converting some nested sql statements such as the following to work in Oracle.
Example :
SELECT antall=COUNT(*), ulest=(SELECT ulest=COUNT(*) FROM soknad s, annonse
a WHERE a.kundeid=13817 AND s.annonseid=a.id and lest != '1') FROM soknad s,
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FROM soknad s, annonse a
WHERE a.kundeid = 13817
AND s.annonseid = a.id
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FROM soknad s, annonse a
WHERE a.kundeid=13817
AND s.annonseid=a.id
AND lest != '1'
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Thanks,
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I have since found out subqueries in the select list are not supported by Oracle.
Brad
null

Error migrating SQL Server 2000 database to Oracle.

Hi,
I am new in SQL Developer.
I read most of the help manuals available on the net.
I am able to create connections to both SQL Server and Oracle database.
I am also able to create the migration repository on the Oracle database.
SQL server connection - TestSQL
Oracle database connection - TestOracle
Migration Repository - Migration_Repository.
Here is the problem am facing:
When I start Migrate to Oracle wizard, by right clicking the TestSQL database, I followed all the required steps and enter the necessary information. -
It starts creating the project - say, TEST but after that it gave the following error:
Migration actions have failed. Check the migration report for more details. : ORA-01400: cannot insert null into ("MIGRATIONS"."MD_PROJECT_ID").
Please help.

Thanks for your reply.
You are correct, there were some permission missing on the migration repository user.
I have given permissions and it worked fine.
but I can say that required permission mentioned in other posts and blogs on the Internet are not sufficient.
One has to provide more admin priviligies to this user.

Migration SQL Server 6.5 to Oracle 8i

Dear Sir,
I download the Oracle Migration Workbench already. I install
that software under Misrosoft Window 95 4.00.950 B. After
Installation, I try to run the migration utilities and I got some
error message, the message is
"Class not found:
oracle.mtg.migrationUI.MigC:\oracle\ora81\omwb\bin "
Could u tell me, what happen ? and If I want to migration from
SQL Server to Oracle, How, Could u let me know about the step of
migration ?
Regards
Pongrat P.
null

I have just downloaded OMWB from net and was facing the same
problem what Pongrat has faced. Thnaks for ready solution
available. I have done the same as mentioned in this mail and
worked.
Rajesh Chug
Oracle Migration Workbench Team wrote:
: Pongrat,
: You have come across a line length problem(see below)
: There is some documentation included with the workbench, and
: there is more downloadable from OTN. There is even a quick
tour
: for the workbench in the OTN->Technology->Migration section.
: Hope that helps,
: Turloch
: Oracle Migration Workbench Team
: The line in the omwb.bat file has gotten too long, you can
remove
: some bits of it that we are not useing yet, ie informix and
db2
: plugin classpath references. Paths differ but if for example
you
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: C:\Program Files\Oracle\jre\1.1.7\lib\rt.jar;C:\Program
: Files\Oracle\jre\1.1.7
\lib\i18n.jar;C:\ORA81c\Omwb\jlib;C:\ORA81c
\Omwb\plugins\SQLServer6.jar;C:\ORA81c\Omwb\plugins\Sybase.jar;C:
\ORA81c\Omwb\plugins\MSAccess.jar;C:\ORA81c\Omwb\plugins\SQLAnywh
ere.jar;C:\ORA81c\Omwb\plugins\SQLServer7.jar;C:\ORA81c\Omwb\jlib
: \omwb-
1_2_2_2.jar;C:\ORA81c\Omwb\jlib\oem204.jar;C:\ORA81c\Omwb\j
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: \ewt-3_1_11.jar;C:\ORA81c\jlib\share-
1_0_6.jar;C:\ORA81c\jlib\hel
: p-3_0_7.jar;C:\ORA81c\jlib\oracle_ice-
4_03_3.jar;C:\ORA81c\Omwb\j
: lib\ewtcompat-opt-3_1_11.zip;C:\ORA81c\Omwb\jlib\kodiak-opt-
1_0_3
: .zip;C:\ORA81c\jdbc\lib\classes111.zip
: The entries:
C:\ORA81c\Omwb\plugins\MSAccess.jar;C:\ORA81c\Omwb\plugins\SQLAny
: where.jar;C:\ORA81c\Omwb\plugins\SQLServer7.jar;
: can be removed, if you are not using sqlserver7 plugin
(currently
: in beta test), or MSAccess plugin (about to go to beta),
: SQLAnywhere plugin (in development). This should shorten the
path
: enough, if not your could copy the jar files to somewhere with
a
: shorter path eg c:\omwb and change the classpath argument
above
: to point to the smaller path length copies.
: Pongrat (guest) wrote:
: : Dear Sir,
: : I download the Oracle Migration Workbench already. I
install
: : that software under Misrosoft Window 95 4.00.950 B. After
: : Installation, I try to run the migration utilities and I got
: some
: : error message, the message is
: : "Class not found:
: : oracle.mtg.migrationUI.MigC:\oracle\ora81\omwb\bin "
: : Could u tell me, what happen ? and If I want to migration
from
: : SQL Server to Oracle, How, Could u let me know about the
step
: of
: : migration ?
: : Regards
: : Pongrat P.
: Oracle Technology Network
: http://technet.oracle.com
null

Migrating SQL server 6.5 to Oracle

Does anyone know if SQL seveloper 1.5.5 work with SQL Server 6.5? i have been trying set it up, but i get the following error every time when trying to connect to the 6.5 SQL Server:
Status: I/O Error: Stream 0 attempting to read when no request has been sent
BTW, i do not hav ethe option to upgrade the SQL Server at thi stime
Any help would be greatly appreciated.
Thanks in advance

Hi Jacques,
Just to be clear.
SQL Server 6.5 is not supported by SQL Developer or the old OMWB.
The only supported version of SQL Server, is 7,2000 and 2005 which are supported by SQL Developer.
Having said that
The old OMWB can be downloaded here
http://www.oracle.com/technology/software/tech/migration/workbench/index.html
And the old (unsupported) SQL Server 6.5 plugin can be found here
http://download.oracle.com/otn/nt/omwb/101040/SQLServer6.jar
Regards,
Dermot.

Migration SQL Server 7.0 to Oracle 8i

Hi,
I am trying to migrate a SQL Server 7.0 database to Oracle 8i using the latest version of the Migration Workbench tool. The source model is normally generated (I see my tables and other objects) but nothing is generated in the Oracle Model... What would be an explanation for this issue and how could I fix it ?
Thanks in advance.
Fabien

Looks like the capture has gone OK but have you gone through the mapping phase?

Migrate sql server dump file to Oracle database on a network

I have a sql server dump file provided to me by DBA's. I have to migrate this dump file to Oracle database on a network. Please suggest me the steps to do this.

5c1ab566-05d1-4cc9-894a-fd1fe724c752 wrote:
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============================================================================
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You can start with Oracle doc,
Oracle® Database PL/SQL User's Guide and Reference
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/toc.htm
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Hi,
You can perform this action with the Oracle Migration Workbench. Just install the Workbench on the same machine as your SQL Server database.
You can then configure the workbench to point to the oracle database on your Sun machine.
You can use the Oracle database on your Sun machine for both your destination database (the database to which you migrate your SQL Server schema and data) and workbench repository.
In order to do this you will need to configure a tnsnames.ora entry. The tool that will do this configuration for you should be started up at the end of the workbench installation. It is a fairly straightfoward process.
You then need to create a user in your oracle database that will store the workbench repository.
Once you have comleted these steps you will be able to migrate SQL Server on NT to Oracle on Sun.
It is exactly the same process as migrating to Oracle on NT except you are pointing the Workbench to Oracle on a Sun box.
Regards
John

Migrating SQL Server DB to Oracle DB - probably EASY answer

I completed the tutorial on migrating SQL Server DB to Oracle. When I try on my own database, it all migrated well except anything containing a datetime. When I run the oracle_ctl.bat file and view any of the log files, I see Record 1: Rejected - Error on table DBO_RIVERSIDEDB_NCWCD_TEST.TS6HOUR_TAIN, column DATE_TIME.
ORA-01843: not a valid month. Do I need to change the first line of the file set NLS_DATE_FORMAT=Mon dd YYYY HH:mi:ssAM ? In the .dat file created from the unload_script.bat, the data starts out 1275<EOFD>2007-05-11 00:00:00.000<EOFD>74.900000000000006<EOFD><EOFD><EORD>1275<EOFD>. So my questions is about the date_format - is that the same for all SQL Server databases or do I need to enter something based on MY database? I am definitely a newbie so this is probably a super easy question. Thanks so much for any help!

Hello,
There are two different date format in SQL Server.
1] DateTime : 2010-08-03 12:48:15.170
2] SmallDateTime: 2010-08-03 12:48:00
Both the date will be inserted in Oracle Date column.
Is there any automated way to generate datamove script to tackle these differences? I've around 200 tables to be migrated and there may be many such cases.
The issue with Oracle SQL Developer setting i.e. Tools >Preferences> (Under) Migration> Data Move Option, there are two masks we can specify, one for Date Mask and other for Timestamp. How can I set both of these for converting data into Date, not in timestamp.
Below is my .CTL file, none of below fields are timestamp, but since incoming data in in timestamp format, it is applying timestamp mask and eventually failing to insert data into table
load data
infile '[PARTSORDER].dat'
"str '<EORD>'"
into table admin.PARTSORDER
fields terminated by '<EOFD>'
trailing nullcols
ORDERID ,
GenDate "TO_TIMESTAMP(:GenDate, 'YYYY-MM-DD.HH24.MI.SS.ff3')",
Status "DECODE(:Status, CHR(00), ' ', :Status)",
StatusBy ,
StatusDate "TO_TIMESTAMP(:StatusDate, 'YYYY-MM-DD.HH24.MI.SS.ff3')",
Approved ,
ApprovedBy ,
ApprovedDate "TO_TIMESTAMP(:ApprovedDate, 'YYYY-MM-DD.HH24.MI.SS.ff3')",
TrackingNumber "DECODE(:TrackingNumber, CHR(00), ' ', :TrackingNumber)",
SVOther "DECODE(:SVOther, CHR(00), ' ', :SVOther)",
ShippedVia "DECODE(:ShippedVia, CHR(00), ' ', :ShippedVia)",
ShippedBy "DECODE(:ShippedBy, CHR(00), ' ', :ShippedBy)",
ShippedDate "TO_TIMESTAMP(:ShippedDate, 'YYYY-MM-DD.HH24.MI.SS.ff3')",
CompletedBy "DECODE(:CompletedBy, CHR(00), ' ', :CompletedBy)",
CompletedDate "TO_TIMESTAMP(:CompletedDate, 'YYYY-MM-DD.HH24.MI.SS.ff3')",
ORDERType "DECODE(:ORDERType, CHR(00), ' ', :ORDERType)",
RMAID ,
RMANumber "DECODE(:RMANumber, CHR(00), ' ', :RMANumber)",
BackOrdered ,
XORDERID ,
PARTSORDERSENT "DECODE(:PARTSORDERSENT, CHR(00), ' ', :PARTSORDERSENT)",
SHIPMENTID "DECODE(:SHIPMENTID, CHR(00), ' ', :SHIPMENTID)"
Any help in this regard will be highly appreciated!
Thanks
Vinod

Migration from sql-server 7.0 to oracle 8i

Hai,
I have one huge database in sql-server 7.0.
That database has chienese,arabic and korean data. And i have created one database in oracle 8.1.6 with character set UTF8.
By using migration work bench i couldn't transfer sql-server data into oracle 8.1.6 database which has character set utf8.
But i have managed to transfer sql-server 7.0 to oracle 8.1.6 database which has us7ascii character set.
Please give me the steps to transfer from sql-server 7.0 to oracle 8.1.6 database which has the character set utf8.
I need it very very urgetnt.
Best Regards,
Sudhir.

I understand that it would not be in the best interests of Oracle, monetarily that is (at least in the visible/tangible sense), to develop such a migration tool, but since the competition hasn't, why shouldn't you? I'm sure Prabha's not the first to inquire of such a thing, and I'm sure I'd have asked a similar question if I wasn't responding to you in this way. We all know Oracle is the better db - That's why we're here talking about it - but not everyone we do business with understands that, so establishing a two way street is the best way, short of requiring it of our clients, to turn them on to Oracle. I don't really think developing such a thing would hurt your business (unless MS can keep you from doing it). If your product is that much better (which we agree is true), you shouldn't be afraid of the competition. As for being afraid of proprietary constraints, I can't blame you, because I don't know how much it constrains you.
-Val
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by The Oracle Migration Workbench Team:
Hi Prabha,
My first reaction to your question would be "why would anyone want to migrate FROM Oracle and TO SQLServer ?". Oracle is easily the better database !
...but no, I don't really think it would be in Oracle's best interests to produce a migration tool that moved users to a propritory Microsoft product/platform..<HR></BLOCKQUOTE>
null

Migrating SQL Server development skills to Oracle

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