Insert and update tables from SQL server to oracle database tables

Hi,
I am having problem while update data from sql server to oracle database tables.
I am doing one way insert +updates that is from SQL Server tables ==> Oracle database tables
I am using tools Sql server Integration service. I can insert data from sql server to oracle but update can't. Please help me how can I update + insert from sql server to oracle database tables easily.
Thanks in advance.

Hi,
What about using Oracle SQL Developer for migration
http://www.oracle.com/technetwork/database/migration/sqlserver-095136.html
HTH

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shixuan

Hi,
See this link
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Hi,
I had to export few tables from SQL Server to Oracle. After the migration, I am checking to see all the tables in Oracle that have been migrated from Sql Server. I am executing select * from tab; and am seeing all the the tables (including those have been exported) from the output list of tables. However, when I am doing a select * from x; where x is one of the few tables that have been migrated, it says table or view does not exist. This is the problem with all other migrated tables. Any help is appreciated in advance. Thanks.
[email protected]

Try select * from "x"

Migration from SQL Server to Oracle database

I have got 2 questions:
1. We are planning to convert our OLTP sql server databases to oracle databases. I tried using SQL Developer to migrate a small sql server database to oracle database(size 5Gb). It was fine. when I tried to migrate another database(size 90G), it is taking too long. The problem with sql developer is I cannot choose and pick tables. out of 250 tables, I need to migrate abt 80 tables(size will be abt 50G). can anybody share their experiences, if any, in converting medium size sql server databases to oracle databases? any others options??
2. I am planning to convert sql server ddl to oracle ddl. I am testing bcp out and use sql loader to import the data. Right now, I am manually creating oracle tables from sql server tables. I am using http://download.oracle.com/docs/cd/E11882_01/gateways.112/e12069/apa.htm#BABCIIDI to convert the code. Are there any other better ways to convert sql server DDL to Oracle DDL?
Thanks in advance

DDLs should be converted manually. Oracle is not SQL-Server.
If you for example have the partitioning option, you should consider using partitioning and local indexes where possible. Not all tables need to be hash tables. Do you defer segment creation or not? What is the type of tablespace? Do you set percentages for free and used to manage when the data block is on the free list and how much is reserved in the data block for updating rows in that block?
There are numerous considerations to make in terms of the physical database design.
Using BCP and SQL*Loader sound good. SQL*Loader is fast and scalable - am using it to load up to 3.6 million rows every 60 seconds. Direct and parallel loads provide the best performance in this regard (assuming that the underlying table structure and usage supports this approach).

How to merge data from SQL server to Oracle Database

Dear Expert,
I am having problem with SQL server with Oracle.
Problem: I want to merge table records from SQL server to Oracle Table. Which License free tool I can use to achive the goals.
If I able to make a free DB link from Oracle to SQL server , then we can select table and will be able to update.
Right now I have made a DB link from SQL server to Oracle, Using that I can see the records from oracle database but I can't update them.
Thanks,
Sher

Hi,
What about using Oracle SQL Developer for migration
http://www.oracle.com/technetwork/database/migration/sqlserver-095136.html
HTH

Loading data from SQL server to Oracle database

i want to create one table in oracle db from table in sql server. Table is huge it got 97,456,789 records.
I created db link (HS) in oracle database which is pointing to sql server. i can select that table from oracle thru db link.
select * from "dbo"."t1@dblink;
i fired below create table.
create table t2 nologging parallel (degree=3) as select * from "dbo"."t1@dblink;
and its taking long time.... but its running...
is there any alternate method to do this and and populate table in oracle db faster.
Please advise. thanks.

vhiware wrote:
create table t2 nologging parallel (degree=3) as select * from "dbo"."t1@dblink;
and its taking long time.... but its running...I doubt that parallel processing will be used as this is unique to Oracle (using rowid ranges typically) and not SQL-Server.
is there any alternate method to do this and and populate table in oracle db faster.Part of the performance overhead is pulling that data from SQL-Server to Oracle across the network link between them. This can be sped up by compressing the data first - and then transferring that across the network.
For example: using +bcp+ to export the data on the SQL-Server box to a CSV file, compress/zip the file, scp/sftp the file to Oracle, and then unzipping it there. Parallel and direct load processing can now be done using SQL*Loader to load the CSV into Oracle.
If this is a Linux/Unix base system, then the unzip/decompress process can be run in parallel with the SQL*Loader process by creating a pipe between the two - where the unzip process writes uncompressed data into the pipe and SQL*Loader reads and loads data as it becomes available via the pipe.
Alternatively, you can do you own PQ processing. Let's say the data is date ranged. You can create a procedure on Oracle that looks something like this:
{code}
create or replace procedure CopyDay( day date ) is
begin
insert /*+ append */ into local_tab select * from remote_tab@remotedb where col_day = day;
-- add logging info, commit, etc.
end;
{code}
You can now start 10 or more of these for different days and run it in the background using DBMS_JOB.

Migrating Functions that return TABLE from SQL Server to Oracle

I have some functions in SQL Server that return a TABLE datatype. When these functions are moved to Oracle 9i using Migration Workbench, they give compilation errors. In the migrated function it says that the DDL stmt is passed to the ddl file, but the table is not created. I checked the ddl stmt for temporary tables and it is wrong. Its a create table stmt with no size for varchars and we can't even edit these stmts in the workbench.
Also the migrated function has the table name for return type, which doesn't works in Oracle. Oracle needs a datatype to be returned from Oracle.
How do we return a table from a function?

Yes.
If you do not enclose the object names (table/view/index etc) in double-quotes, they are stored in uppercase format in the data dictionary.
If you enclose them in quotes, they are stored in the same case ans you entered. As such, while accessing such objects, you need to tell Oracle not to convert the names to uppercase, hence the requirement to supply the names in quotes.

Periodic Importing of data from SQL Server into Oracle Database

I would like to know how I can use the SQL Developer tool to import data from a SQL Server database across the internet into an Oracle Database on a periodic basis? I understand there is a Migration Workbench, but it seems to be only a one off activity.
What I would really like is to be able to import data for example, very 30 minutes from multiple tables/views in a SQL Server Database into an Oracle Database (overwriting or modifying existing same data) without the need for Heterogeneous Connectivity, as my Oracle Database is not my LAN.
Thank you for your kind ideas and suggestions.

To be honest the best way to do it is DG4ODBC or DG4MSQL. All other solutions need manual interaction.
The gateways DG4ODBC and DG4MSQL are independant from the Oracle database and also from the SQL Server location. In a worst case scenario you have an Oracle database on machine A, the gateway on machine B and the SQL Server on machine C.
Gateways were built to exactly do what you want. As you have access to the Oracle database the only part you need to define within the Oracle database is a db link. If you specify the full tns connect identifier there is even no need to edit the tnsnames.ora file.
Even if you excluded the gateway in your last sentence the best solution would be the gateway.
Another option you can use is the SQL Server linked server mechanism. It allows you to link another server using OLEDB driver. In your case you can then link the Oracle db into your SQL Server and then insert/update/delete and select Oracle tables from the SQL Server. Using now a trigger will replicate the data immediately to the Oracle db.

Migrating a table with BLOB field from SQL-Server to Oracle.

Hi All,
I'm trying to create a Class to migrate data from SQL-Server to Oracle, this table has a BLOB field.
The Code:
package br.com.infox;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class Migrador {
     public static void main(String[] args){
          try {
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               Class.forName("net.sourceforge.jtds.jdbc.Driver");
               Connection conSQL = DriverManager.getConnection ("jdbc:jtds:sqlserver://10.10.2.9/protocolo","prot","suinf2002");
               // Conex�o com o Oracle
               Class.forName("oracle.jdbc.driver.OracleDriver");
               Connection conORA = DriverManager.getConnection ("jdbc:oracle:thin:@10.10.2.2:1521:des","protocolo","protocolo");
               Statement stSQL = conSQL.createStatement();
               String querySQL = "SELECT * FROM DOC_INCORPORADO";
               ResultSet rsSQL = stSQL.executeQuery(querySQL);
               String queryORA = "INSERT INTO PROT_VITALICIAMENTO (NU_PROCESSO, ANO_PROCESSO, CD_USUARIO, DT_ENVIO," +
                         "DE_COMPLEMENTO, NM_ARQUIVO, ARQUIVO, NU_SEQ, CD_TIPO_ARQUIVO, MES, ANO) VALUES (?,?,?,?,?,?,?,?,?,?,?)";
               PreparedStatement psORA = conORA.prepareStatement(queryORA);
               while (rsSQL.next()){
                    System.out.println("Linha: " + rsSQL.getRow());
                    psORA.setInt(1, rsSQL.getInt("nu_processo"));
                    psORA.setInt(2, rsSQL.getInt("ano_processo"));
                    psORA.setInt(3, rsSQL.getInt("cd_usuario"));
                    psORA.setDate(4, rsSQL.getDate("dt_incorporacao"));
                    psORA.setString(5, rsSQL.getString("complemento"));
                    psORA.setString(6, rsSQL.getString("nm_arquivo"));
                    psORA.setBinaryStream(7, rsSQL.getBinaryStream("arquivo"), (int)rsSQL.getBlob("arquivo").length());
                    psORA.setInt(8, rsSQL.getInt("num_seq"));
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                    psORA.setInt(10, rsSQL.getInt("mes"));
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               psORA.close();
               conORA.close();
               conSQL.close();
          } catch (Exception e){
               e.printStackTrace();
The ERROR:
java.sql.SQLException: Exce��o de E/S: Connection reset
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334)
     at oracle.jdbc.ttc7.TTC7Protocol.handleIOException(TTC7Protocol.java:3668)
     at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1986)
     at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1119)
     at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2191)
     at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2064)
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2989)
     at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:658)
     at br.com.infox.Migrador.main(Migrador.java:41)
What's the problem of these Class?
Thank's.

Depending on the version of the database you have, you could use transportable tablespaces.
http://download-east.oracle.com/docs/cd/B10501_01/server.920/a96524/c04space.htm#9370

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Hi
I need to migrate a table from SQL server to oracle, both of which are on different machines, I tried using SQL server DTS export functionality selected the Oracle driver, created a DSN, but it gave error message box as shown below
Error Source: Microsoft OLE DB Provider for ODBC Drivers
"ORA 12560 :TNS protocol adapter error"
Context:Error During initialization of the provider
While i was successfully able to migrate the table from SQL SERVER to MS-ACCESS and from MS ACCESS to Oracle
thanks
abhishek

Hi
thanks warren, i just figured out that the DSN i had created while migrating data from Access to oracle was User DSN, i just created a system DSN of the similar kind and was successfully able to export the data from SQL server to oracle, the only problem being the column names in SQL server are longer than the limit of 30 characters we have in ORACLE..
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To make heterogeneous connection with oracle:
1.First make an ODBC connection, make entry in System DSN(to create a data source)
2.Make an entry in tnsnames.ora
3.Make an entry in listener.ora under SID_LIST_LISTENER
4.Make an entry in file named init<HS>.ora file located "oracle_base\oracle_home\db\hs\admin"
5.Restart the listener
e.g:
1. create a odbc system dsn named like 'sqlserver'
2. sqlserver= (DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp) (HOST=xx.xx.xx.xx) (PORT=1521))
(CONNECT_DATA = (SERVICE_NAME=sqlserver))
(HS = OK)
3. (SID_DESC = (SID_NAME = sqlserver) (ORACLE_HOME = oracle_base\oracle_home\db) (PROGRAM = hsodbc) )
4.Create a file named initsqlserver.ora and make the following entry:
HS_FDS_CONNECT_INFO = sqlserver
Alternatively, you can copy the file named inithsodbc.ora and rename it to initsqlserver.ora
and edit as HS_FDS_CONNECT_INFO = sqlserver
5. lsnrctl reload listener_name
regards
adnan kaysar

How to delete/drop all the tables from SQL Server Database without using Enterprise Manager?

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Informative thread indeed. Wish I saw it early enough. Managed to come up with the code below before I saw this thread.
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(TableSchemaTableName
varchar
(500),
[status] int
default 0);
with AvailableTables
(TableSchemaTableName)
as
(select
QUOTENAME(TABLE_SCHEMA)
+
+
QUOTENAME(TABLE_NAME)
from
INFORMATION_SCHEMA.TABLES)
insert into @TTName
(TableSchemaTableName)
select *
from AvailableTables
declare @TableSchemaTableName varchar
(500)
declare @sqlstatement nvarchar
(1000)
while 1=1
begin
set @sqlstatement
=
'DROP TABLE '
+ @TableSchemaTableName
exec
sp_executeSQL
@sqlstatement
print
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+ @TableSchemaTableName
update @TTName
set [status]
= 1
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if
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where [Status]
= 0)
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Problem in Import of Tables from SQL Server.

Hi Forum,
I m new to OWB.
I m facing a prob regarding the import of tables.
I m importing tables from SQL server through ODBC DB Link..
It imports the tables fine, but without key constraints..
Can u tell me, Why? and How can I import that info as well?

Hi David,
The things I said are not a fix for this problem.
If your RCU installation worked, then you do not have to worry about modifying the createfr.sql.
Edit:
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For example:
This query will give the hyperion error.
select     "table"."field"
from     "database.user"."table"
To correct it write it like this:
select     "table"."field"
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Edited by: EBA on Nov 14, 2011 10:21 AM

Create oracle table from sql server

Dear Gurus,
I need to create some tables from sql server 2008 to a oracle 11g database. Some tables contain vbinary datatype. Now my queries are
1. How can I do that?
2. If DB link is a solution then would you please provide me a step by step process to do so?
3. Is there any issue with datatype?
SQL Server db is on windows 2008 R2
Oracle is in RHEL 5.5
Will appreciate ur help.

well suppose i generate flat files from sql server and load in oracle by sqlloader then will there be any issue with vbinary datatype? what should be the equivalent data type in oracle table?

How to extract incremental data from SQL server to oracle tables in ODI

HI All,
In my ODI sql server is install.My Source is in SQL server and my target is in Oracle.
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We are not going to use Incremental in IKM and LKM.
Request you to please provide any suggestion ASAP.
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You can do that via Variable.
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Insert and update tables from SQL server to oracle database tables

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