I'm trying to migrate a database created in SQL Server 2016 to Oracle 18c.
Both database instances are installed in VMs.
However the migration fails providing a message which I could not understand as I'm not that deep into Oracle RDBMS.
Now, both VMs have 4GB of RAM and each one is used to host the specific RDBMS (SQL Server 2016 & Oracle 18c respectively)
Both RDBMSs were installed with default options. The origin database (SQL Server 2016) is a very simple one, no triggers or stored procedures or anything like that. It only has PK-FK constraints for table relations.
The target database is an empty DB (or User as Oracle calls it) with all privileges provided in the options.
I'm providing the screenshots below following the steps from SQL Developer Migration Wizard.
SQL Server 2016 OS is Windows Server 2016, Oracle 18c OS is 2008R2 Datacenter edition.
The only option I've checked was to truncate the target DB. Please let me know If you need any further details that can help.
Related
I have an SQL Server installed on a local Windows 10 machine - I'm using Microsoft SQL Server Management Studio to interact with it.
I also have a DB2 database hosted on an IBM i machine and I've created a Linked Server in SQL Server Management Studio to represent it. I can connect to the Linked Server and can query/pull data from it successfully.
I'm trying to copy particular tables from the Linked Server and insert them into a Database/Schema in the SQL Server - I can do this successfully but unfortunately, it appears that in the process of copying the table over, none of the constraints (particularly in my case, the key constraints) are maintained.
Is there a simple way to copy over tables from a Linked Server to SQL Server (in SQL Server Management Studio) while maintaining key constraints?
The following query is an example of what I'm using to copy the tables over (one-by-one):
SELECT *
INTO SQLSCHEMA.SQLTABLE
FROM LINKSERVER.LINKDATABASE.LINKSCHEMA.LINKTABLE
The easiest way is to use proper tool for it like SSMA:
Microsoft SQL Server Migration Assistant (SSMA) is a tool designed to automate database migration to SQL Server from Microsoft Access, DB2, MySQL, Oracle, and SAP ASE.
Migrating DB2 Databases to SQL Server (DB2ToSQL)
SQL Server Migration Assistant (SSMA) for DB2 is a comprehensive environment that helps you quickly migrate DB2 databases to SQL Server or Azure SQL DB. By using SSMA for DB2, you can review database objects and data, assess databases for migration, migrate database objects to SQL Server or Azure SQL DB, and then migrate data to SQL Server or Azure SQL DB. Note that you cannot migrate SYS and SYSTEM DB2 schemas.
I'm trying to migrate a SQL Server 2012 database backup file, which I wanted to migrate to Oracle 12c. I tried to use SQL Developer tool for migration using this reference:
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/hol08/sqldev_migration/mssqlserver/migrate_microsoft_sqlserver_otn.htm
The problem is in SQL Developer tool, I didn't see any option where I can generate database capture script for SQL Server 2012, because there is no option which is showing up there.
I'm open for other suggestions as well. the SQL Server is installed on my same system, where I've installed Oracle 12c, so even if there is way by which we can directly connect with SQL Server on my local system.
Hello for migration from SQL SERVER to Oracle. There are many articles are available on web. You can google it. For as one reference use this article and try for migration of data.
How can I access or connect to Sql Server 2014 Enterprise from Oracle 12c Enterprise.
I want to connect so that I can run DML queries on SQL Server 2014 tables, EXECUTE procedures and so on.
Going from Oracle to SQL Server is called a "Database Link"
Going from SQL Server to Oracle uses a "Linked Server".
Somebody has explained it over at Stack Exchange.
https://dba.stackexchange.com/questions/15708/how-to-create-oracle-linked-server-in-oracle-server-itself
You can refer to Oracle's Heterogeneous Connectivity documentation. There's a guide for each of several different remote data sources. You'll want to focus on the ones for ODBC or SQL Server. If I remember correctly the Heterogeneous database gateway for ODBC is included with standard database licensing, but Heterogeneous database gateway for SQL Server requires additional licensing.
I'm planning to migrate all the SSRS reports from 2008R2 server to new sql server 2014 environment. As far as migration is concerned, I was asked to take the backup of 2008R2 report server database and restore it in 2014 server.
I was not convinced with this since there may be new tables available in 2014 Report server.
The new features of 2014 cant be utilized if the old report server database is restored.
Please let me know if this thought is correct.
Are there any new tables available in 2014 report server database?
What is the best option to migrate ssrs reports from 2008 r2 to 2014 server?.
Your question is a bit confusing, I will assume you want to move the database from a Server A with SQL Server 2008R2 + SSRS 2008R2 to a Server B with SQL Server 2014 + SSRS 2014.
Are there any new tables available in 2014 report server database?
There is no official communication on it.
If you really want to know it you could do a schema compare between the 2 versions.
But do not forget to compare everything, not only tables:
Columns
Stored Procedures, Functions
...
Database structure is not the only thing to take into account, what about:
All the configuration files
Encryption Keys
...
What is the best option to migrate ssrs reports from 2008 r2 to 2014
server?.
Short answer:
My recommended way of doing it would be to use RS Scripter and generate a script on Server A with all the objects (reports, datasources, subscriptions, ...) you want to move.
Then you can restore it on Server B.
Long answer:
If you really want to migrate the full database like you were asked to do, there is no officially supported way to move the database to another SQL instance and upgrade the version at the same time.
You could try to follow the steps to Backup and Restore Operations for Reporting Services, and apply it to a newer SQL Server instance with another SSRS version, but it will be at your own risk.
The supported ways to do would be to either:
Upgrade from SSRS 2008R2 to SSRS 2014 on Server A
Move from Server A to Server B
or
Move from Server A to Server B
Upgrade from SSRS 2008R2 to SSRS 2014 on Server B
Here are the related MSDN articles for these operations:
Migrate a Reporting Services Installation (Native Mode)
Upgrade to SQL Server 2014
Again, I would advise using a tool to migrate the reports and other items instead of trying to migrate the full database.
I do not think restore 2008R2 reportserver db on 2014 will work, because the report definition schema is totally different.
I did a migration task to move 2008R2 reports to 2012. Because there are hundreds of reports on the 2008R2 server, I found the easiest way is to write some codes to read report definition, and then create on 2012 server.
From: https://msdn.microsoft.com/en-us/library/ms143747.aspx
There are two general approaches to upgrading a Reporting Services
deployment:
Upgrade: You upgrade the Reporting Services components on
the servers and instances where they are currently installed. This is
commonly called an “in place” upgrade. In-place upgrade is not
supported from one mode of Reporting Services server to another. For
example, you cannot upgrade a Native Mode report server to a
SharePoint mode report server. You can migrate your report items from
one mode to another. For more information, see the ‘Native to
SharePoint Migration’ section later in this document.
Migrate: You
install and configure a new SharePoint environment, copy your report
items and resources to the new environment, and configure the new
environment to use existing content. A lower level form of migration
is to copy the Reporting Services databases, configuration files, and
if you are using SharePoint mode, the SharePoint content databases.
If you do an in-place upgrade from SQL Server 2008R2 to SQL Server 2014, then everything should work as expected.
Is there any way of copying a database from oracle to sqlserver 2005? Thanks
You can migrate from Oracle to SQL Server with Microsoft's SQL Server Migration Assistant. It is available both to SQL Server 2005 and 2008.
If you have lots of (complicated) stored procedures and such, the migration might get a bit tedious. I have only experience with databases with simple procedures and could just rewrite them and do the data copy to empty tables in SQL Server with the import functionality using Oracle connector (usable from SQL Server if you have installed Oracle client tools to the SQL Server machine). This way I didn't even need to use the Migration Assistant tool.