I logged into Oracle Apex through my company server. I am not able to get sql_text from v$sqlarea view. I am stuck, and don't be able to proceed further to kill sessions.
Most probably you don't have access to view those tables, to give access ask you dba to grant this ,
SQL> grant all on v_$sqlarea to scott;
Grant succeeded.
Instead of scott, replace with your username
Related
I'm new to Oracle and would like to know the way how to get more statistics in the case i'll describe below. I'm using SQL Developer.
First, I execute this:
SET autotrace on;
SELECT NAME
FROM PASSENGER
WHERE ID_PSG IN (
SELECT ID_PSG
FROM PASS_IN_TRIP PIT JOIN TRIP T on T.TRIP_NO = PIT.TRIP_NO
WHERE UPPER(TOWN_FROM) = 'MOSCOW'
)
In Script Output I can see info about the query from PLAN_TABLE table and after that there's the text:
Unable to gather statistics please ensure user has correct access. The
statistic feature requires that the user is granted select on
v_$sesstat, v_$statname and v_$session.
I've tried to find a solution here already, there's a link:
SQL Developer : Unable to gather system statistics : insufficient privileges
So I executed the same commands and the grants were all succeded:
GRANT CREATE session TO PRACTICE;
GRANT GATHER_SYSTEM_STATISTICS TO PRACTICE;
GRANT CONNECT TO PRACTICE;
Then I disconnected, closed SQL dev, opened it, connected again as it was described in the solution from the link, ran
execute dbms_stats.gather_system_stats ('START');
and got this:
PL/SQL procedure successfully completed.
Then I thought everything is fine and tried to execute the code from the very beginning and its Script Output was still the same as before.
Do I have to grant anything else or this statistics can be found in the other place or I just did everything wrong?
That error is about sqlplus autotrace, it's not about gathering system statistics like your linked post seems to be about.
There is a role created specifically for these grants called plustrace https://docs.oracle.com/database/121/SQPUG/ch_eight.htm#SQPUG535
To use this feature, you must create a PLAN_TABLE table in your schema
and then have the PLUSTRACE role granted to you. DBA privileges are
required to grant the PLUSTRACE role. For information on how to grant
a role and how to create the PLAN_TABLE table, see the Oracle Database
SQL Language Reference.
whenever I'm trying to connect with scott it is showing invalid username/password,
tried this:
alter user scott account unlock;
SP2-0640: Not connected
alter user scott identified by tiger;
SP2-0640: Not connected
Go to the Installing path of the Oracle 11g In default it is present C: Drive, then move to C:\oraclexe\app\oracle\product\11.2.0\server\rdbms\admin
here you can find a file named scott.sql
Open the SQL Command Line and login as conn system/ (password set during the installation of oracle 11g)
Run the Below script (Note: File name is appended at the end)
# C:\oraclexe\app\oracle\product\11.2.0\server\rdbms\admin\scott.sql
Now you can query the SELECT * FROM all_users; to see the scott schema created
Alternatively you can do this by using SQL developer by creating a connection to SYSTEM and run the above script
After the creation the default username : SCOTT password: TIGER
In the comment part i especially asked for querying
select count(1) from dba_users where username = 'SCOTT';. I'd like to learn if user exists.
For the message you get ORA-01017,
the First possible reason is what message tells us(invalid
username/password).
Secondly, you may not have an account named SCOTT. i.e. the above
query gives 0(zero).
In this case :
you should create mentioned user ( when you're connected to system ):
SQL> conn system/pwd
Connected.
SQL> create user scott identified by tiger;
and grant related privileges :
SQL> grant connect to scott;
SQL> grant resource to scott;
and then you can connect by issuing :
SQL> conn scott/tiger
Connected.
Connect with a DBA Account and Issue an Alter User Command
The error you are seeing indicates you are no longer connected to the database. You were logged in as system#db, but when you tried to connect as scott#db, you no longer have a database connection.
Here I replicate your experience:
SYSTEM#db>conn system#db as sysdba
Enter password:
Connected.
SYS#db>conn scott#db
Enter password:
ERROR:
ORA-01017: invalid username/password; logon denied
#>alter user account scott unlock;
SP2-0640: Not connected
#>alter user scott identified by tiger;
SP2-0640: Not connected
Here I reconnect and then issue an alter user command to unlock the user account and set a new password.
#>conn system#db as sysdba
Enter password:
Connected.
SYS#db>ALTER USER scott IDENTIFIED BY tiger ACCOUNT UNLOCK;
User altered.
SYS#db>conn scott/tiger#db
Connected.
Addendum
My steps provided assumed you had the scott schema installed. If the scott schema does not exist, it would be good to see if the default 11g database sample schemas exist.
The schema account scott is no longer a default schema in the 11g database. The 11g documentation states:
"Oracle used the schema SCOTT with its two prominent tables EMP and
DEPT for many years. With advances in Oracle Database technology,
these tables have become inadequate to show even the most basic
features of Oracle Database and other Oracle products. "
I would recommend reviewing to see if the other default sample schemas are installed. The hr account is most similar to the scott schema.
Here is a list of common sample schema usernames:
username IN (
'HR',
'OE',
'PM',
'SH',
'IX'
)
Check to see if the person whom performed the installation used the database configuration assistant and opted to install the sample schemas.
If the schemas were not created at the time of installation, the document, "Oracle® Database Sample Schemas 11g Release 1 (11.1) B28328-03", describes the steps to do this in chapter 2, Installation.
Open Oracle sql developer.
In the sql developer paste the path of scott.sql file(C:\oraclexe\app\oracle\product\11.2.0\server\rdbms\admin\scott.sql) with '#' infront of it.
# C:\oraclexe\app\oracle\product\11.2.0\server\rdbms\admin\scott.sql
Run script
Script Output -> Connection created by CONNECT script command disconnected
Connect using SQL Command Line
conn scott/TIGER;
How can a regular developer, without admin privileges on the database, see active db connections - particularly the ones "owned" by them? Not sure if that is the right db terminology. (Application written in Java with JDBC, Oracle, and SQL Plus).
You don't need admin privileges but you would need to have permission to query the V$SESSION table (GV$SESSION if you happen to be using RAC). Your DBA can grant you the privilege to query just that table
GRANT SELECT ON sys.v_$session TO <<your user name>>
or the DBA can grant your user the SELECT ANY DICTIONARY privilege or the SELECT_CATALOG_ROLE role.
If you have one of those grants, you should be able to query V$SESSION to see all the sessions in the database.
SELECT sid, serial#, username, osuser, machine, terminal, program
FROM v$session
WHERE username = <<some user name>>
will show all the sessions in the database opened by a particular user.
Can someone advise me on how to create a user in Oracle 11g and only grant that user the ability only to execute one particular stored procedure and the tables in that procedure.
I am not really sure how to do this!
Connect as SYSTEM.
CREATE USER username IDENTIFIED BY apassword;
GRANT CONNECT TO username;
GRANT EXECUTE on schema.procedure TO username;
You may also need to:
GRANT SELECT [, INSERT] [, UPDATE] [, DELETE] on schema.table TO username;
to whichever tables the procedure uses.
Follow the below steps for creating a user in Oracle.
--Connect as System user
CONNECT <USER-NAME>/<PASSWORD>#<DATABASE NAME>;
--Create user query
CREATE USER <USER NAME> IDENTIFIED BY <PASSWORD>;
--Provide roles
GRANT CONNECT,RESOURCE,DBA TO <USER NAME>;
--Provide privileges
GRANT CREATE SESSION, GRANT ANY PRIVILEGE TO <USER NAME>;
GRANT UNLIMITED TABLESPACE TO <USER NAME>;
--Provide access to tables.
GRANT SELECT,UPDATE,INSERT ON <TABLE NAME> TO <USER NAME>;
The Oracle documentation is comprehensive, online and free. You should learn to use it. You can find the syntax for CREATE USER here and for GRANT here,
In order to connect to the database we need to grant a user the CREATE SESSION privilege.
To allow the new user rights on a stored procedure we need to grant the EXECUTE privilege. The grantor must be one of these:
the procedure owner
a user granted execute on that procedure with the WITH ADMIN option
a user with the GRANT ANY OBJECT privilege
a DBA or other super user account.
Note that we would not normally need to grant rights on objects used by a stored procedure in order to use the procedure. The default permission is that we execute the procedure with the same rights as the procedure owner and, as it were, inherit their rights when executing the procedure. This is covered by the AUTHID clause. The default is definer (i.e. procedure owner). Only if the AUTHID is set to CURRENT_USER (the invoker, that is our new user) do we need to grant rights on objects used by the procedure. Find out more.
Don't use these approach in critical environment like TEST and PROD. Below steps are just suggested for local environment. For my localhost i create the user via these steps:
IMPORTANT NOTE : Create your user with SYSTEM user credentials.Otherwise you may face problem when you run multiple application on same database.
CONNECT SYSTEM/<<System_User_Password>>#<<DatabaseName>>; -- connect db with username and password, ignore if you already connected to database.
Then Run below script
CREATE USER <<username>> IDENTIFIED BY <<password>>; -- create user with password
GRANT CONNECT,RESOURCE,DBA TO <<username>>; -- grant DBA,Connect and Resource permission to this user(not sure this is necessary if you give admin option)
GRANT CREATE SESSION TO <<username>> WITH ADMIN OPTION; --Give admin option to user
GRANT UNLIMITED TABLESPACE TO <<username>>; -- give unlimited tablespace grant
EDIT: If you face a problem about oracle ora-28001 the password has expired also this can be useful run
select * from dba_profiles;-- check PASSWORD_LIFE_TIME
ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED; -- SET IT TO UNLIMITED
As previously mentioned multiple times in the comments, the use of the CONNECT, RESOURCE and DBA roles is discouraged by Oracle.
You have to connect as SYS to create your role and the user(s) which are given this role. You can use SQL Developer or SQL*Plus as you prefer. Do not forget to mention the SYSDBA role in the logon string. The connect_identifier uses different syntaxes.
sqlplus sys/<<password>>#<<connect_identifier>> as sysdba
Let's say you have a 12cR1 like the one provided as a VM with the "Oracle Technology Network Developer Day". The connect strings might be (to connect to the provided PDB) :
sqlplus sys/oracle#127.0.0.1/orcl as sysdba
sqlplus sys#"127.0.0.1/orcl" as sysdba -- to avoid putting the pw in clear
Note that under Unix, the quotes have to be escaped otherwise they will be consumed by the shell. Thus " becomes \".
Then you create the role MYROLEand grant it other roles or privileges. I added nearly the bare minimum to do something interesting :
create role myrole not identified;
grant create session to myrole;
grant alter session to myrole;
grant create table to myrole;
Next your create the user MYUSER. The string following identified by which is the password is case-sensitive. The rest is not. You could also use SQL delimited identifiers (surrounded by quotes ") instead of regular identifiers which are converted tu uppercase and subject to a few limitations. The quota could be unlimited instead of 20m.
create user myuser identified by myuser default tablespace users profile default account unlock;
alter user myuser quota 20m on users;
grant myrole to myuser;
Eventually, you connect as your new user.
Please note that you could also alter the default profile or provide another one to customize some settings as the expiration period of passwords, the number of permitted failed login attempts, etc.
CREATE USER USER_NAME IDENTIFIED BY PASSWORD;
GRANT CONNECT, RESOURCE TO USER_NAME;
CREATE USER books_admin IDENTIFIED BY MyPassword;
GRANT CONNECT TO books_admin;
GRANT CONNECT, RESOURCE, DBA TO books_admin;
GRANT CREATE SESSION GRANT ANY PRIVILEGE TO books_admin;
GRANT UNLIMITED TABLESPACE TO books_admin;
GRANT SELECT, INSERT, UPDATE, DELETE ON schema.books TO books_admin;
https://docs.oracle.com/cd/B19306_01/network.102/b14266/admusers.htm#i1006107
https://chartio.com/resources/tutorials/how-to-create-a-user-and-grant-permissions-in-oracle/
First step:
Connect to a database using System/Password;
second Step:
create user username identified by password; (syntax)
Ex: create user manidb idntified by mypass;
third Step:
grant connect,resource to username; (Syntax)
Ex: grant connect,resource to manidb;
step 1 .
create user raju identified by deshmukh;
step 2.
grant connect , resource to raju;
step 3.
grant unlimitted tablespace to raju;
step4.
grant select , update , insert , alter to raju;
I'm using Oracle XE but I would like to log in as a user than can create tables, contraints etc., but who cannot view all of the other system tables and stuff that you see when you log in with the system account.
How can I achieve this?
You need to create a new user with:
CREATE USER xxx IDENTIFIED BY yyyy;
From there, issue GRANT for the privileges you want to give the user:
GRANT CREATE SESSION TO xxx;
GRANT CREATE TABLE TO xxx;
GRANT CREATE VIEW TO xxx;
etc.
See the SQL Reference documentation for all the privileges you can grant. User xxx will only be able to see their own objects and objects they have been granted privileges on.