I'd like to copy a schema to a newly created one in Oracle Database, in Oracle Cloud.
As far as I know, these databases are managed ones, so I can't run expdb / impdb on them.
Any other idea how to copy (~clone) an entire schema?
Thanks,
As #dmitry shared above-
1.Extract DDL stackoverflow.com/questions/10886450/…. 2.Extract data csv github.com/dmitrydemin1973/powershell-oracle/blob/master/… or insert sql. 3. Create tables in cloud. 4 Load data into tables(sqlloader or sqlplus). 5Create other objects(indexes, procedures, packages,etc ).6 Recompile functions, procedures, packages, views.
Please see #dmitrys response above
Related
I'm trying to export an Oracle DB using Oracle SQL Developer having tables, sequences, view, packages, etc. with dependencies on each other.
When I use Tools -> Database Export and select all DDL options, unfortunately the exported SQL file does not preserve the other that is some DB objects should be created before some other.
Is there a way to make the DB export utility preserve object dependencies/order? Or Is there any other tool do you use for this task?
Thank you
Normally expdp does a pretty good job. Problems arise when there are dependencies on objects/users that are not part of the dump. This is because the counter part, impdp, does not add grants on objects that are not created by impdp. I call that the 'not created by me syndrome' that impdp has.
If you have no external dependencies (external meaning to schema's that are not part of the dump), expdp/impdp do a good job for you. You might not be able to use it if you can not have access to the database server since expdp writes it's files on the database server.
If you happen to have access to a database server that is able to connect to the original database, you could pull the data over into your local database using a database link.
I noticed that my oracle db automatically creates tables with names such as #T10_sid:201349704_1_FiltFilte.
Does anyone know how these tables are created / what creates them? They are starting to clog up my table list so I would also like a way to automatically remove them (as long as they are not needed).
Can anyone help me there?
Edit:
I am using Oracle SQL Developer, if that makes any difference.
How can I create a script of inserts for my sybase to oracle Migration? The Migration wizard only gives me the option to migrate procedures and triggers and such. But there is no select for just tables. When I try to migrate tables offline and move data. the datamove/ folder is empty. I would also want to only migrate specific tables (ones with long identifiers) because i was able to migrate the rest with Copy to Oracle.
I must also note that i do not want to upgrade to an new version of oracle. Currently on ~12.1 so i need to limit the identifiers.
How can I get the offline scripts for table inserts?
You (probably!) don't want INSERTs for offline migration scripts. If you're just running INSERTs, then the online method would probably suffice.
The point of the Offline strategy is to take the data from your Sybase instance to flat, delimited text files (using BCP), which we can THEN use to load back into an Oracle Database using SQLLDR or External Tables which will be EXPONENTIALLY faster than using INSERT scripts.
Take a look at this whitepaper where I go into offline Sybase migrations in detail.
You can consider DCO-based Sybase-to-Oracle replication via the Sybase Rep Server. This way, not only will you have all data moved, but you will also be able to have DML updates propagated online, which will make your system switchable live.
I've got an oracle 11 XE database, with 3 schemas in it, that I want to create a DDL file for to make a baseline script to use with flyway.
I've tried to export just the DDL of all 3 schemas, but the resulting sql doesn't include the creation of the users, or the creation of the tablespaces. It just starts off with sql to create tables, which will not work as the users or the tablespaces don't exist.
Is there any way to do this with sql-developer or am I using the wrong tool for the job here?
I'm thinking I may need to include all the SYSTEM objects in the DDL, but no idea how importing that into a running oracle instance will work.
Any tips or hints I'd be grateful for, I'm starting to think this plan just isn't possible. :-(
Thanks
Matt
when we generate the ddl for a schema, we grab the schema objects, not the definition of the user that owns the schema, nor the tablespaces used IN the schema
you can still get those though, just open the DBA Panel -
I have an Oracle 12c Instance with a scheme 'wadmin' user, this instance has tables, view, data, triggers, sequences etc.
For quick spinning of docker images, I need to clone the db schema as fast as possible , so that I can create another user 'wadmin1' link it to new docker and start my testing.
Any CLI/tools for the same, does oracle provide any options?
I do not know if this is exacly what you are looking for but you can export your Oracle schema using ORACLE DataPump tool. This involves storing exported schema in the Oracle directory. While exporting schema to file you can transform the schema name, omit unnecessary tables or data etc. Exported files with database schema can be later used for imported to new database instance. More information regarding Oracle DataPump you can find here. https://oracle-base.com/articles/10g/oracle-data-pump-10g#SchemaExpImp.
Alternatively you can have scripts that create the database stored in the Git repository and integrate your builds with too called Flyway https://flywaydb.org/ which can be used to automatize of database schema creation. This is also really convenient from source control point of view. All changes on the schema are pull requested.
In my team we use OracleDataPump when we want to recreate the database together with the data, Flyway is used as a part of our continues integration.