Converting MS SQL Server Query to Oracle Query

Hi There,
I've a strange problem. My project uses both MS SQL Server and Oracle server at run time. I've lot of queries which are written in MS SQL Style. Now, iam planning to write a helper class whic converts MS SQL Query to Oracle Query. Please Help me if any one has that kind of Helper with you.
Thanks And Regards,
Sasi Kanth

That is why persistence applications like Hibernate or
CMP get used for apps that will use more than one DB,
but it takes upfront planning.
If you have a set of automated unit tests that work
with SQL Server, they will be a big help in getting
your Oracle code up and running.Indeed - JUnit and Ant would be a big help here.
It sounds like you have SQL in your JSPs, that will
work against you as well if so. If you are using a
DAO pattern, this will be much easier, as you can
re-implement each DAO for Oracle.If you'd layered this app properly, you might just implement an OracleDAOFactory and be done with it. Interfaces and a DAO layer would go a long way.
This is why layering is such a good idea. It isolates changes in a smaller subset of classes.
But your problem sounds pretty big. It'd be daunting even if it were well designed.

Similar Messages

Convert Sql server Storeprocedure to Oracle Storeprocedure

Hi I vant to convert a sql server storeprocedures to oracle storeprocedure .
I need a convertor if anybody know a aplication that performed it please tell me.

Hi Hoek,
I have tried this:
1. Get the DATETIME into a VARCHAR2 variable.
2a. Then, I use a TIMESTAMP variable and TO_TIMESTAMP like this:
v_tmst := TO_TIMESTAMP (r_typ.date1, 'DD.MM.YYYY HH24');2b. Or the function CAST:
v_tmst := CAST (r_typ.date1 AS TIMESTAMP);Same result, I lose the HH:MI:SS.FFF just in the moment the DATETIME from SQL Server is copied into an Oracle VARCHAR2 variable.
I also read the article you linked (I also read it before I wrote the 1st posting, but not with deep detail).
I'm afraid this cannot help me, or at least I'm not able to find out how.
They talk about ODI, but I'm not using that tool.
Moreover, they talk about creating a table, but they don't say anything regarding the conversion itself and how to get the miliseconds.
Don't know whether there is something I can take from here or not.
Anyway, thank you for the repply.
Francisco.
Edited by: FranBlanes on 30.08.2012 04:27

Migration from sybase sql server 7 to Oracle 8i

Hi,
We have a very old Sybase database which contains some 2gb of data which is still being used by the users, we want to phase this out. We want to selectively export some tables and import them into our oracle 8i database. I have looked at documentation related to the migration workbench and it wont work for us because the version of sybase database is very old and I cannot find any client software either to help me to connect to the database.
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Hi Hari,
You will be able to get the Beta release on this site in the next
couple of days in the 'Software' section of this page.
We are just waiting on our web page administrators to make this
software public.
The amount of interest in the SQL Server 7.0 plugin is
substantial, so we are focussing on making it production as soon
as possible.
Please provide feedback on the beta to [email protected]
Regards
John
Hari (guest) wrote:
: Hello great ones,
: I have a website converted from sql server 7 to Oracle 8i (okay
: the customer just woke up to the reality that Oracle rules in
: the e-commerce world..). I read about the workbench and the
: sqlserver 7 plugin which is still in beta.
: Is there any ways I could get hold of the beta release?. This
is
: a big company and if I could do the job fast, it would result
in
: more business to oracle for they will buy the production
: licenses
: (as well as Oracle Apps) after I show them I am successful and
: Oracle 8i is great.
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Oracle Technology Network
http://technet.oracle.com
null

SQL Server Procedures to Oracle Functions

Is there an option in the Migration Assistant 1.2.0 that will convert the SQL Server procedures into Oracle Functions (rather than procedures)?
By default the T/SQL procedures return a integer status code. Our middle-tier requires calls to procedures to return a status code (integer), and I'd like the migration to modify the "procedure" to a "Function returning Integer" rather than Procedure.

Thomas,
This is not an option currently. We will look into this for a future release. You could manually make the changes post conversion, prior to generation. As well as adding appropriate RETURN statements, you may want to add additional exception handling so the appropriate error is passed back.
Donal

Convert this sql server query to Oracle?

I've some SQL Server queries that I need to make a copy for to run against Oracle databases. (10G), any help would be appreciated.
SELECT COUNT(*) COUNT, CONVERT(DATETIME, CONVERT(VARCHAR(8), M.START_DATE, 1)) [DATE]
     FROM OPTC.ORD_M_ORDER M
     INNER JOIN OGEN.GEN_M_PATIENT_MAST P ON M.PAT_NUMBER = P.PAT_NUMBER
     INNER JOIN OPTC.ORD_C_ORDER_TYPE C ON C.ORDER_TYPE_KEY = M.ORDER_TYPE_KEY
     WHERE OGEN.DATEONLY(END_DATE)- OGEN.DATEONLY(START_DATE) < '1900/03/01'
     --AND OGEN.DATEONLY(CREATED_ON) = OGEN.DATEONLY(CURRENT_TIMESTAMP)
     AND ORDER_STATUS IN (4,7,8)
     AND M.FACILITY_KEY IN (SELECT VALUE FROM OGEN.COMMA_TO_TABLE(@FACILITYKEY))
     AND [START_DATE] BETWEEN @STARTDATE AND @ENDDATE
     AND CAST(M.ORDER_FLAGS AS BIGINT) & 64 <> 64 AND P.DISCHARGE_DATE IS NULL
     GROUP BY CONVERT(DATETIME, CONVERT(VARCHAR(8), [START_DATE], 1))

Hi,
You could use the 'Translation Scratch Editor' in SQL*Developer to translate SQL*Server statements to Oracle.
SQL*Developer is free and can be downloaded from here -
http://www.oracle.com/technetwork/developer-tools/sql-developer/overview/index.html
Once installed start it up, then go to 'Tools' - 'Migration' - 'Translation Scratch Editor'
I did run the statement you have posted here through it but it gave errors so looks like there may be a problem with the syntx in any case.
Does this query run as it is in SQL*Server ?
Regards,
Mike
Edited by: mkirtley on Jan 5, 2012 12:45 PM

Query Perofmance is much more fast in SQL server 2000 than Oracle 9i

I have converted a database from SQL Server 2000 to Oracle (9.0.2).
In a stored procedure a query based on 4 tables working well in SQL Server which takes just 1 or 2 minutes to give result But in Oracle it takes 3 to 4 Hours to return the results.Although Database hit ratio is 99 plus %. In Oracle when i created indexes on 2 columns of 2 tables it just take 5 to 10 sec. But I want to get the result in less time without indexes. Because in
SQL Server it Works well without indexes.
Please reply me with some solutions or reasons
Regards
AN

Most sites have a job that runs every night to keep the statistics up to date.Really? I would be very surprised if that was the case. Firstly, many sites don't want to take the hit of running stats for a whole system each night. Secondly, I would hope that many DBAs know this statement...
Always keep up to date statistics if you want your database to be efficent. ...is wrong.
The best that can happen from refreshing the statistics every night is that it makes no difference to your application. If your application is running nicely - that is, no users are yelling at you - then your current statistics are good enough. Refreshing statistics introduces instability into the system and might lead to queries performing worse than before.
Gathering stats is not the sort of thing you want to do with a scattergun. Analyze your database once, after you've reached what is a representative data volume and then leave it alone. Only refresh statistics if you have a specific issue (user complaint) and you think stale statistics might be the cause.
Cheers, APC

How to convert sql query to oracle query?

Hi all,
Hope doing well,
sir i am using oracle database where i am running my sql query in oracle. but this query is not working properly. i used sql developer translation scratch editor to convert that.
it's converted but i am not getting the exact value.
which i was getting in sql server.
here is my query below:
SELECT C.*,ISNULL(P.Comp_Name,'') + ' (' + ISNULL(P.Comp_ID,'') + ')' Parent FROM Comp_Master C LEFT JOIN Comp_Master P ON C.Parent_ID = P.Comp_ID Where C.Comp_ID='C02'
please convert it into oracle so that i can use this query
thanks in advance.

Try --
1. Use NVL instead of isNull
2. Use *||* instead of +*
/* Formatted on 9-13-2012 4:39:09 PM (QP5 v5.163.1008.3004) */
SELECT c.*, NVL (p.comp_name, '') || ' (' || NVL (p.comp_id, '') || ')' parent
FROM comp_master c LEFT JOIN comp_master p ON c.parent_id = p.comp_id
WHERE c.comp_id = 'C02'
PS - Do remember to mark the solutions as Helpful or Correct. Thanks for understanding.

Help with translating SQL query from SQL Server syntax to Oracle syntax

Hi,
is it someone that can help me translate following SQL query from SQL Server syntax to Oracle syntax.
SELECT ID,
[LMT(MTR)] = MAX(case when TYPE = 'LMT' then VALUE end),
[AAD(KGM)] = MAX(case when TYPE = 'AAD' then VALUE end),
[VOL(MTQ)] = MAX(case when TYPE = 'VOL' then VALUE end)
FROM yourtable
GROUP BY ID
Your help is highly appreciated, thanks in advance.

Like this,
SELECT ID,
MAX(case when TYPE = 'LMT' then VALUE end) LMT_MTR,
MAX(case when TYPE = 'AAD' then VALUE end) AAD_KGM ,
MAX(case when TYPE = 'VOL' then VALUE end) VOL_MTQ
FROM yourtable
GROUP BY ID-Arun

I want to query sql server database from oracle

i want to query sql server database from oracle
can anyone help me in this regard

First of all - you are in the wrong forum.
Look either for the Database general or search for Transparant / Heterogenous Gateways.
cu
Andreas

Error in Oracle 10 Procedure - converted from SQL Server

I have converted the folowing script from SQL Server proc to Oracle Proc; it compiles with a warning "30 Hint: Comparision with NULL in 'sp_MyEmployee'"
When this proc is executed; it generates an error "ORA-00900: invalid SQL statement"
Please help!
CREATE OR REPLACE PROCEDURE osp_DMEmployee(v_ahRole IN VARCHAR2 DEFAULT null,
                    v_Exclusion IN varchar2 DEFAULT null) as
v_MyString varchar2(32767);
v_spot NUMBER(5,0);
v_str varchar2(8000);
v_email varchar2(5000);
SWV_Exclusion varchar2(5000);
BEGIN
SWV_Exclusion := v_Exclusion;
v_MyString := 'SQLWAYS_EVAL# exprsnlid, dmdescription, dmregion, dmfieldloc, dmbusentity,
                              dmemployeenum, dmusername, dmtitle, dmemail, ahrole
                         FROM dm_Employee WHERE dmEmail is NOT NULL';
if v_ahRole is not NULL then
IF v_ahRole = 'PLANNER' then
v_MyString := v_MyString || 'SQLWAYS_EVAL# AND (DMTitle like ''%Coord%'' OR DMTitle like ''%Planner%'' OR DMTitle like ''%Svc Leader%'') ';
end if;
IF v_ahRole = 'TECHNICIAN' then
v_MyString := v_MyString || 'SQLWAYS_EVAL# ''' || v_ahRole || 'SQLWAYS_EVAL# is NOT NULL ';
end if;
IF v_ahRole = 'SUPERVISOR' then
v_MyString := v_MyString || 'SQLWAYS_EVAL# ''' || v_ahRole || 'SQLWAYS_EVAL# is NOT NULL ';
end if;
end if;
IF SWV_Exclusion is NOT NULL then
/* WHILE SUBSTR(CAST(SWV_Exclusion AS VARCHAR2),1,4000) <> '' LOOP */
WHILE SWV_Exclusion <> '' LOOP
v_spot := instr(SWV_Exclusion,',');
IF v_spot > 0 then
v_str := SUBSTR(SWV_Exclusion,1,v_spot -1);
SWV_Exclusion := SUBSTR(SWV_Exclusion,-(LENGTH(SWV_Exclusion) -v_spot));
ELSE
v_str := SWV_Exclusion;
SWV_Exclusion := '';
end if;
IF v_email is NOT NULL then
v_email := v_email || ',' || ' ''' || SUBSTR(v_str,1,100) || ''' ';
ELSE
v_email := ' ''' || SUBSTR(v_str,1,100) || ''' ';
end if;
END LOOP;
end if;
v_MyString := v_MyString || 'SQLWAYS_EVAL# IN (' || v_email || ')';
v_MyString := v_MyString || 'SQLWAYS_EVAL# ail';
DBMS_OUTPUT.PUT_LINE(SUBSTR(v_MyString,1,250));
EXECUTE IMMEDIATE v_MyString;
RETURN;
END;

1) When discussing an error, please copy the actual error message. Usually you will get a line number to assist investigation;
2) Please refer to the FAQ (upper right corner of page) to show how to preserve code and make your question more readable;
3) Please ask the question in a forum that deals with the topic - such as "Database - General" (look for "Forum Home" link at top left of page)
4) Please note that the title of this forum is "Community Feedback and Suggestions (Do Not Post Product-Related Questions Here)"
(And ... did you display the SQL that you were attempting to execute. Execute Immediate is a last resort style of programming - not nice for most Oracle apps.)

I am trying to have access tables of the Sql Server through the Oracle

I am trying to have access tables of the Sql Server through the Oracle and this being occurred the error:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message: [Generic Connectivity using ODBC][H006] The init parameter <HS_FDS_CONNECT_INFO> is not set.
Please set it in init <orasid>.ora file.
ORA-02063: preceding 2 lines from HSMSQL
I created the ODBC with name HSMSQL.
I made all the configurations in the archives
tnsnames.ora:
HSMSQL=
(DESCRIPTION=
(ADDRESS= (PROTOCOL = tcp)(HOST = wsus)(PORT = 1521))
(CONNECT_DATA =
(SID = HSMSQL)
(HS = OK)
listener.ora:
(SID_DESC = (SID_NAME=HSMSQL)
(ORACLE_HOME= C:\oracle\ora92)
(PROGRAM =hsodbc)
initHS_SID.ora:
HS_FDS_CONNECT_INFO = HSMSQL
HS_FDS_TRACE_LEVEL = OFF
-- Create database link
create database link HSMSQL.US.ORACLE.COM
connect to TESTE identified by TESTE2
using 'HSMSQL';
But when I execute query the error occurs:
Select * from TabTeste@HSMSQL
ORA-28500: connection from ORACLE to a non-Oracle system returned this message: [Generic Connectivity using ODBC][H006] The init parameter <HS_FDS_CONNECT_INFO> is not set.
Please set it in init <orasid>.ora file.
ORA-02063: preceding 2 lines from HSMSQL
Please they help me, thanks, Paulo.

Hi,
It seems that your configuration is Ok. By the way, the workaround for this error is:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Transparent gateway for ODBC][H001] The environment variable <HS_FDS_CONNECT_INFO> is not set.
* Set HS_FDS_CONNECT_INFO in the hs{sid}init.ora file to the data source name.
Example: HS_FDS_CONNECT_INFO = <ODBC DataSource Name>
* Make sure the hs{sid}init.ora file exists in the ORACLE_HOME/hs/admin directory and has the same name as the SID in the LISTENER.ORA.
Example: If SID=hsodbc in the listener.ora file, then the hs{sid}init.ora file would be named ORACLE_HOME/hs/admin/inithsodbc.ora
For more information see if this [url http://forums.oracle.com/forums/thread.jspa?forumID=61&threadID=576975]thread can help you.
Cheers

Problem in Loading Data from SQL Server 2000 to Oracle 10g

Hi All,
I am a university student and using ODI for my final project on real-time data warehousing. I am trying to load data from MS SQL Server 2000 into Oracle 10g target table. Everything goes fine until I execute the interface for the initial load. When I choose the CKM Oracle(Create unique index on the I$ table) km, the following step fails:
21 - Integration - Prj_Dim_RegionInterface - Create Unique Index on flow table
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The error message is:
955 : 42000 : java.sql.SQLException: ORA-00955: name is already used by an existing object
java.sql.SQLException: ORA-00955: name is already used by an existing object
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     at java.lang.Thread.run(Unknown Source)
I am using a surrogate key column in my target table alongwith the natural key. The natural key is populated by the primary key of my source table, but for the surrogate key, I have created a sequence in my oracle schema where the target table exists and have used the following code for mapping:
<%=snpRef.getObjectName( "L" , "SQ_PRJ_DIM_REGION" , "D" )%>.nextval
I have chosen to execute this code on target.
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select * from NOVELTYFURNITUREDW.PRJ_DIM_REGION
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Thank you so much in advance.
Neel

Hi Cezar,
Can u plz help me with this scenario?
I have one Oracle data model with 19 source tables and one SQL Server data model with 10 target tables. I have created 10 interfaces which use JournalizedDataOnly on one of the tables in the interface; e.g in interface for DimCustomer target table, I have 2 tables, namely Customer and Address, but the journalizing filter appear only on Customer table and this option is disabled for Address automatically.
Now I want to create a package using OdiWaitForLog event detection. Is it possible to put all these 10 interfaces in just one package to populate the target tables? It works fine when I have only one interface and I use the name of one table in the interface for Table Name parameter of OdiWaitForLogData event, but when I try a comma seperated list of table names[Customer, Address] this error happens
java.sql.SQLException: ORA-00942: table or view does not exist
and if I use this method <%=odiRef.getObjectName("L","model_code","logical_schema","D")%>, I get this error
"-CDC_SET_NAME=Exception getObjectName("L", "model_code", "logical_schema", "D") : SnpLSchema.getLSchemaByName : SnpLschema does not exist" "
Please let me know how to make it work?
Do I need to create separate data models each including only those tables which appear in their corresponding interface and package? Or do I need to create multiple packages each with only one journalized interface to populate only one target table?
Thank you for your time in advance.
Regards,
Neel

Error while Viewing SQL Server data from Oracle

Dear Friends,
I am using Oracle10g XE.
I have made a connection to view or insert data in SQL Server Database from Oracle.
I have done all the things with the help of below link.
http://www.databasejournal.com/features/oracle/article.php/3442661/Making-a-Connection-from-Oracle-to-SQL-Server.htm
Everything worked fine. but when i run below query
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it gives an error which is mentioned below
ERROR at line 1:
ora-28545: error diagnosed by Net8 when connecting to an agent
Unable to reteieve text of NETWORK/NCR MESSAGE 65535
ORA-02063: preceding 2 lines from MYSQLSERVERDSN
Please help. I will be thankful.
Regards,

Dear Klaus,
Here u go.
C:\>C:\oraclexe\app\oracle\product\10.2.0\server\bin\hsodbc
Oracle Corporation --- TUESDAY   JUN 24 2014 16:28:20.146
Heterogeneous Agent Release 10.2.0.1.0 - Production Built with
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C:\>C:\oraclexe\app\oracle\product\10.2.0\server\bin\tnsping MYSQLSERVERDSN
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 24-JUN-2
014 16:28:33
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT
=1522)) (CONNECT_DATA=(SID=MYSQLSERVERDSN)) (HS=OK))
TNS-12541: TNS:no listener
C:\>C:\oraclexe\app\oracle\product\10.2.0\server\bin\lsnrctl status LISTENERMYSQLSERVERDSN
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 24-JUN-2014 16:28
:48
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
   32-bit Windows Error: 61: Unknown error
Connecting to (ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
   32-bit Windows Error: 2: No such file or directory
C:\>
Regards,

Oracle 10g connectivity with sql server 2000 through oracle transpa gateway

dear gurus.
i am to connecto oracle 10g with sql server 2000 through oracle transparent gateway.
i have installed transparent gateway and proper configured. also link is created.
but when i execute query "select * from city@inventory" , so an error displayed.
ORA-12500: TNS:listener failed to start a dedicated server process.
kindly suggest me what could be the cause.
regards,

if the listener fails to spawn a dedicated server process it is commonly indicating an issue with the listener. So posting the listener and also a listener trace including a description of the env where you installed the gateway into which directory would be helpfull. Please keep also in mind if you have for example a 10.2.0.3 database and you install into this directoty a 10.2.0.1 gateway you have to reapply the patchset again do get consistent file version.
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Access SQL-Server Data from Oracle 10gXE

Hello,
I want to access sql-server data from oracle 10g XE. I need the same functionality provided by Sql-server by Linked Servers, by which we can query on any data source(oracle, Excel, Access).
do, Oracle 10gXE provide us with same functionality ???
any pointers ???

Yes, it does work with Express Edition.
Here is a thread from the XE forum with examples.
Re: Database Link to MS Access
They refer to a MS Access database, but the procedure is the same.
Doug

Converting MS SQL Server Query to Oracle Query

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