I have inherited a Oracle 10.2 database witch I have to extend with new tables...
On the test database I just add table and grant select privileges to the "non root" user and it works.
I do the same on the production database and I can't select from the table. It only works if I do "select * from table_space.tablename" not "select * from tablename".
Do I have to add some kind of alias or something?
You probably need a synonym for the table.
See here and here
Also, try a select * from all_synonyms; first to see if a generic user is accessing the table through a synonym (as I suspect).
Related
I use SQL developer and i made a connection to my database with the system user, after I created a user and made a another connection with that user with all needed privileges.
But when I try to proceed following I get the SQL Error
ORA-00942 table or view does not exist.:
INSERT INTO customer (c_id,name,surname) VALUES ('1','Micheal','Jackson')
Because this post is the top one found on stackoverflow when searching for "ORA-00942: table or view does not exist insert", I want to mention another possible cause of this error (at least in Oracle 12c): a table uses a sequence to set a default value and the user executing the insert query does not have select privilege on the sequence. This was my problem and it took me an unnecessarily long time to figure it out.
To reproduce the problem, execute the following SQL as user1:
create sequence seq_customer_id;
create table customer (
c_id number(10) default seq_customer_id.nextval primary key,
name varchar(100) not null,
surname varchar(100) not null
);
grant select, insert, update, delete on customer to user2;
Then, execute this insert statement as user2:
insert into user1.customer (name,surname) values ('michael','jackson');
The result will be "ORA-00942: table or view does not exist" even though user2 does have insert and select privileges on user1.customer table and is correctly prefixing the table with the schema owner name. To avoid the problem, you must grant select privilege on the sequence:
grant select on seq_customer_id to user2;
Either the user doesn't have privileges needed to see the table, the table doesn't exist or you are running the query in the wrong schema
Does the table exist?
select owner,
object_name
from dba_objects
where object_name = any ('CUSTOMER','customer');
What privileges did you grant?
grant select, insert on customer to user;
Are you running the query against the owner from the first query?
Case sensitive Tables (table names created with double-quotes) can throw this same error as well. See this answer for more information.
Simply wrap the table in double quotes:
INSERT INTO "customer" (c_id,name,surname) VALUES ('1','Micheal','Jackson')
You cannot directly access the table with the name 'customer'. Either it should be 'user1.customer' or create a synonym 'customer' for user2 pointing to 'user1.customer'. hope this helps..
Here is an answer: http://www.dba-oracle.com/concepts/synonyms.htm
An Oracle synonym basically allows you to create a pointer to an object that exists somewhere else. You need Oracle synonyms because when you are logged into Oracle, it looks for all objects you are querying in your schema (account). If they are not there, it will give you an error telling you that they do not exist.
I am using Oracle Database and i had same problem. Eventually i found ORACLE DB is converting all the metadata (table/sp/view/trigger) in upper case.
And i was trying how i wrote table name (myTempTable) in sql whereas it expect how it store table name in databsae (MYTEMPTABLE). Also same applicable on column name.
It is quite common problem with developer whoever used sql and now jumped into ORACLE DB.
in my case when i used asp.net core app i had a mistake in my sql query. If your database contains many schemas, you have to write schema_name before table_name, like:
Select * from SCHEMA_NAME.TABLE_NAME...
i hope it will helpful.
I'm working on C# Winform app and I have the query that select the list of tables but in but in the schema of the user I list there's no table listed.
This query should work in SQL Server
ALTER LOGIN [my_user_name] WITH DEFAULT_DATABASE = [new_default_database]
is there query like that on oracle?
Nope, there's not (as far as I can tell).
(Just a side note: what you call "database" in MS SQL Server is called "user" in Oracle, while "schema" = "user + all its objects").
Solution? Connect as user which owns tables you use.
Alternatively, if you can't have those credentials (username and password + database) for some reasons (such as security), you'll have to get access to those objects, somehow. One option is that owner grants (at least) select privilege. Suppose I'm the owner (user = "littlefoot"):
grant select on employees to kim;
("kim" is user you can connect to).
Then you'd precede table name with owner name:
select * From littlefoot.employees;
Or, you could create a synonym to all those tables so that you could avoid specifying owner name:
create synonym employees for littlefoot.employees;
select * from employees;
Or, if it really is a different database, you'll have to create a database link, but it presumes that you know login credentials so - I believe that this is not your case.
in Oracle SQL developer I got error ORA-00942: Table or View not exist connecting with another user when I do the following:
CREATE USER marta IDENTIFIED BY 'marta';
GRANT SELECT, INSERT ON myTable TO marta;
so then, executing:
CONNECT marta/marta;
INSERT INTO myTable VALUES ('1', 'foo', bar');
got the ORA-00942...
Obviusly, If I use system user I can insert row with no issues.
I searched other answers but I couldnt solve this... what is wrong
Obviusly, If I use system user I can insert row with no issues.
Uh-oh. There's nothing obvious about that. The SYSTEM user should not own a table called MY_TABLE (or whatever application table that is actually named). The SYSTEM user is part of the Oracle database, its schema is governed by Oracle and using it for our own application objects is really bad practice.
But it seems you have created a table in that schema and user MARTA can't see it. That's standard. By default users can only see their own objects. They can only see objects in other schemas if the object's owner (or a power user) grants privileges on that object to the other user.
So, as SYSTEM
grant select on my_table to marta;
Then, as MARTA
select * from system.my_table;
To avoid prefixing the owning schema MARTA can create a synonym:
create or replace synonym my_table for system.my_table;
select * from my_table;
But really, you need to stop using SYSTEM for your own tables.
Using Oracle 12c, I have a role which I have granted basic CRUD operations to using Oracle SQL Developer. The problem is, users of the group can not see the list of tables in Oracle SQL Developer. All they see is the branch that shows a tables node but there is no plus sign to expand and see the tables for the one schema they need to work with. What other privilege needs to be granted to the group so they can see all the table nodes for their schema when using Oracle SQL Developer? Thanks in advance.
If I understood you correctly, you
created a role
granted certain privileges to that role
created bunch of users
granted role (from step 1) to those users
but they still don't see anything.
If that's so, they won't see anything regardless of what you grant - it is because they don't have those objects in theirs schemas.
What you (or they) should/could do is to precede table name with owner name while selecting data from those tables. Suppose that there's a table named EMPLOYEE and your users want to select data from it - they should run select * from robertcode.employee (presuming that user robertcode owns that table)
Although it works, users won't be happy because they don't know table names. Therefore, create a script which they will run in their schemas - that script will create synonyms to your tables.
In order to do that, write query which will create query:
SQL> select 'create synonym ' || table_name || ' for ' || table_name ||';'
2 from user_tables;
'CREATESYNONYM'||TABLE_NAME||'FOR'||TABLE_NAME||';'
--------------------------------------------------------------------------------
create synonym EMP for EMP;
create synonym BONUS for BONUS;
create synonym SALGRADE for SALGRADE;
create synonym DEPT for DEPT;
Copy/paste all those create synonym ... statements into an e-mail message and let them create synonyms for themselves.
They still won't see anything under the Tables node (because those users don't have tables (until they create them in their own schema), but will see something in Synonyms.
If I have a table sch1.tab1 is it possible to call it from schema/user sch2 just with
select * from tab1 (assume that we have all the privilegies)?
I am aware that in postgresql you can set the search path where db would look for tables which enables you to omit the schema when you are referencing a table but I do not know if this exists in oracle.
Thank you.
You can create a synonym, but you'd have to make one for each table you wanted to access; from sch2:
create synonym tab1 for sch1.tab1;
A more general method is to switch your current schema:
alter session set current_schema = 'SCH1';
You're still connected with your original user account and only have those privileges still, but you don't have to qualify objects in that schema any more. But now you would have to qualify any of your own tables (back in sch2), if you have objects in both schemas.