I would like to duplicate some roles from a production database to a test database.
How can I programatically generate a text-based SQLPLUS script to do this? Since I'm only interested in the roles I don't want to use EXP/IMP.
DBMS_METADATA might be helpful: http://www.orafaq.com/wiki/DBMS_METADATA
SELECT dbms_metadata.get_ddl('ROLE', role) FROM dba_roles;
SELECT dbms_metadata.get_granted_ddl('ROLE_GRANT', '&&your_role_name') FROM dual;
SELECT dbms_metadata.get_granted_ddl('SYSTEM_GRANT','&&your_role_name') FROM dual;
SELECT dbms_metadata.get_granted_ddl('OBJECT_GRANT','&&your_role_name') FROM dual;
Related
What is the difference between ora_database_name and sys_context('userenv','service_name').
Both the queries below gives different results.
select ora_database_name from dual;
select sys_context('userenv','service_name') from dual;
How and where to find actual database name?
ora_database_name is a synonym to the package function dbms_standard.database_name. I suspect it is identical to
select sys_context('userenv','db_name') from dual;
However, sys_context('userenv','service_name') is the service name you are currently using.
A database can support more than one service name. To see the list:
SELECT name FROM all_services;
orclpdb1
You can add additional services ...
EXEC DBMS_SERVICE.CREATE_SERVICE('myservice', 'myservice');
EXEC DBMS_SERVICE.START_SERVICE('myservice', NULL);
SELECT name FROM all_services;
orclpdb1
myservice
... which can then be used to connect to the database ...
sqlplus user/pass#myhost:1521/myservice
I need to insert the huge records that are comes as Interface file(text files).
Now am using this format to insert records.
INSERT ALL
INTO POSTAL_CODE( postal_code,desc)
VALUES('100','Coimbatore')
INTO POSTAL_CODE (postal_code,desc)
VALUES('101','Mumbai') SELECT * FROM DUAL;
But this gives bad performance. I am new to database. So please help me to make faster inserting records. But in db2 this format is supports.
INSERT INTO POSTAL_CODE( postal_code,desc)
VALUES('100','Coimbatore'), (postal_code,desc),('101','Mumbai');
But why oracle is not support this type of insert. Please help me. Am stuck with this. I need to use another solution for this and that should be faster....
You can change the below statement
INSERT INTO POSTAL_CODE( postal_code,desc) VALUES('100','Coimbatore'),
(postal_code,desc),('101','Mumbai');
To be like below using UNION which should work in Oracle as well
INSERT INTO POSTAL_CODE( postal_code,"desc")
select '100','Coimbatore' from dual
union all
select '99','Goa' from dual
union all
select '101','Mumbai' from dual;
You should rather check the utilities provided by Oracle for this purpose like SQL*Loader
As well check this other SO post Loading data from a text file to a table in oracle
Our Oracle DBA is planning to move a number of schemas to new instances. One thing we've noticed - security policies are not being carried over in the exports. Also- they don't seem to count as 'objects' when querying 'all_objects' or 'user_objects'. Different kind of animal I guess.
Any ideas on how to migrate this stuff smoothly?
Personally I use a tool to extract/generate scripts for specific users or roles. Toad can script users, as can other tools. The one I now use is my own, but I cannot promote it here. If you don't have such a tool, there are other options.
Use export or data pump. When you do full system export (using exp or data pump) you will get all of the grants. You can then use the import / impdp utilities to dump all of the DDL for the grants for users of interest. Once you have the dmp file.
impdp system/ full=Y directory=dumpdir dumpfile=full.dmp logfile=dump.txt grants=y
Or for export
imp system/ full=y grants=y file=full.dmp log=dump.txt
This will dump everything to the dump.txt in text form and you can extract the SQL. Not super pretty, but works.
Use DBMS_METADATA to give you the grants for a user or role.
SQL> set long 50000
SQL> select dbms_metadata.get_ddl( 'USER', 'MSMITH' ) from dual;
SQL> select dbms_metadata.get_granted_ddl('SYSTEM_GRANT', 'MSMITH') from dual;
SQL> select dbms_metadata.get_granted_ddl('OBJECT_GRANT', 'MSMITH') from dual;
SQL> select dbms_metadata.get_granted_ddl('ROLE_GRANT', 'MSMITH') from dual;
Or for roles:
SQL> select dbms_metadata.get_ddl( 'ROLE', 'JUNIOR_DBA' ) from dual;
SQL> select dbms_metadata.get_granted_ddl('SYSTEM_GRANT', 'JUNIOR_DBA') from dual;
SQL> select dbms_metadata.get_granted_ddl('OBJECT_GRANT', 'JUNIOR_DBA') from dual;
SQL> select dbms_metadata.get_granted_ddl('ROLE_GRANT', 'JUNIOR_DBA') from dual;
Here is my problem, I wants to create a baseline on our development Dateabase (Oracle 10g), and check into our svn for version control, and after this we will use liquibase to help us manage the incremental database changes.
My problem is how should I create baseline of Oracle 10g? the database now consists of 500+ tables, with large amount of configuration data, and I wants my db baseline to base on a set SQL scripts to check into subversion, rather then check in Oracle dump..
I have try use liquibase generateChangeLog, but it have some performance problem.. can anyone can recommends me any tools that will help me
1. Scan any Oracle Schema
2. Generate a set of SQL Scripts (With Table structures, and Data)..
Thanks in advance
James!
Something like
SELECT DBMS_METADATA.GET_DDL('TABLE',table_name) FROM USER_TABLES;
is a good start. You can tweak it with PL/SQL and UTL_FILE to get it to write each table to a different file. You will probably need to do sequences too (though versioning them is fairly pointless), and maybe triggers/procedures/functions/packages etc.
Don't forget grants.
Have you tried Oracle's free SQLDeveloper tool? It gives you the possibility of exporting DDL and data.
EXPDP with CONTENT=METADATA_ONLY option, then IMPDP with SQLFILE=your_script.sql ?
Nicolas.
More general solution would be to dump DDL sql for selected list of tables, but additionally also other types of objects. This could be done by using all_objects and all_users views.
Example that worked for me:
select dbms_metadata.GET_DDL(u.object_type,u.object_name, u.owner)
from all_objects u
where 1=1
-- filter only selected object types
and u.object_type in ('TABLE', 'INDEX', 'FUNCTION', 'PROCEDURE', 'VIEW',
'TYPE', 'TRIGGER', 'SEQUENCE')
-- don't want system objects, generated, temp, invalid etc.
and u.object_name not like 'SYS_%'
and temporary!='Y'
and generated!='Y'
and status!='INVALID'
and u.object_name not like 'TMP_%'
and u.object_name not like '%$%'
-- if you want to filter only changed from some date/timestamp:
-- and u.last_ddl_time > '2014-04-02'
-- filter by owner
and owner in (
select username from dba_USERS where DEFAULT_TABLESPACE not like 'SYS%'
and username not in ('ORACLE_OCM')
and username not like '%$%'
)
;
I wrote a python script that refreshes db schema in incremental mode based on similar sql:
runs sql with last_ddl_time>=max(last_ddl_time from last refresh)
at the end stores last_ddl_time somewhere in filesystem for next refresh
References:
oracle dbms_metadata.GET_DDL function
oracle all_objects view
Since I am new to Oracle, please tell me what different ways to find packages, stored procedures, triggers, functions, indexes, tablespaces
Thanks
The following statement gives you an overview of all database objects in the current user:
SELECT
object_name,
object_type
FROM
user_objects;
If you are searching for documentation, you can look at Morgan's Library
You can download Oracle SQL Developer free. This allows you to explore all the objects in your database via a simple interface.
I shall walk you through the different shades of "all_object":
SQL> show user
USER is "C##SCOTT"
SQL>
Getting all the types of object:
select distinct object_type from all_objects;
EDITION
CONSUMER GROUP
SEQUENCE
SCHEDULE
PROCEDURE
OPERATOR
DESTINATION
WINDOW
SCHEDULER GROUP
PACKAGE
PROGRAM
LOB
XML SCHEMA
JAVA RESOURCE
JOB CLASS
DIRECTORY
TABLE
SYNONYM
INDEX
VIEW
FUNCTION
INDEXTYPE
JAVA CLASS
TYPE
EVALUATION CONTEXT
25 rows selected.
Now, you can zoom down to the "TABLE" type of object:
select object_name||','||object_id||','||owner from all_objects where object_type='TABLE' ;
Or all the objects of an owner:
select object_name||','||object_id||','||OBJECT_TYPE from all_objects where owner = 'SYS';
Trust me, you will learn more this way - anyone can click through any GUI tool, but to issue the SQL command, you will need some knowledge.