How To Access A DB B From A Stored Procedure Of DB A
v$ view access over dblink from package December 05, 2014 - 2:48 pm UTC Reviewer: Ian from London Hi Tom Welcome back! If you change the procedure, the signature is lost, and you need to resign the procedure. [email protected]> grant select any dictionary to a; Grant succeeded. REVERT go -- The data in the table has been replaced. Source
That is, CREATE ROLE creates the role only. but, you'd have to get your DBA to "help you" I'm confused March 17, 2006 - 12:01 am UTC Reviewer: Steven Zhang from Hangzhou, China Hi Tom, You Said "In a About -02041 January 09, 2004 - 5:47 pm UTC Reviewer: Mariano from Córdoba, Argentina Hi, Tom. That mean that I should store credentials somewhere in sp? directory
How To Use Dblink In Oracle Procedure
In a real-world scenario, both procedures would be far more elaborate. (Please see the introductory note for general notes on the example scripts). You can also use a directory (LDAP) to store the credentials or a wallet. Thanks for any feedback.
Commit don't work in triggers. What I want to know is if I have an identical function on Database A and Database B: FUNCTION GET_GROUPTOTALS(in_group_id in number) returns number is v_return number; begin select sum(amount) into But when we run example_sp, which is signed, there is an extra line: SYSTEM_USER USER name type usage ---------- -------- ----------- --------------------------- --------------- testuser testuser testuser SQL USER GRANT OR DENY Connection Description For Remote Database Not Found This can be seen in the following example.
You create an asymmetric key in SQL Server with the command CREATE ASYMMETRIC KEY. Db Link Creation In Oracle However, I have not tested this, nor have I had it confirmed, so it's pure speculation on my part. CREATE PROCEDURE start_this_job AS EXEC msdb..sp_start_job 'Testjob' go -- Give test user right to execute the procedure. https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:22541885338185 We know this is easy to spoof - but it helps a little bit until we can go to something secure such as proxy authentication.) I have suggested creating a view
NB - The dblink is a loopback to the same database. Ora-02063 Writing stored procedures as condition handlers also allows database administrators to track errors in the system with greater detail by using stored procedures to catch the errors and record some audit In actual case it won¿t be loopback db link. Oh, gee, so sorry -- you cannot insert good data into this table, because the remote site is down right now -- no work for you.
- [email protected]> [email protected]> pause [email protected]> update t set y = 42 where x > 0; for key = 1 we are changing y from "" to "42" for key = 2 we
- Distributed database and optimizer modes, version 220.127.116.11.0 May 03, 2004 - 4:41 pm UTC Reviewer: Raja Hi Tom, I don't know if this is the correct thread to ask this question.
- However is an error occurs than the errors are never logged because it will never all DATABASE B to commit the logging.
- CREATE LOGIN reloadcert_login FROM CERTIFICATE reloadcert go -- Grant rights for the certificate login.
- Comparison with functions A function is a subprogram written to perform certain computations.
- Another example of a command where ownership chaining does not work is BULK INSERT; this command requires a server-level permission.
Db Link Creation In Oracle
in the remote database i just execute dbms_obfuscation_toolkit.des3decrypt and this action is wrapped in a procedure in my 8i with some data processing actions after using dbms_obfuscation_toolkit. Each database in a distributed database is uniquely identified by its global database name. How To Use Dblink In Oracle Procedure Just like the parameters of a Sub or Function, the parameters can then be manipulated within the stored procedure. How To Check Dblink In Oracle Hmm.
CREATE CERTIFICATE examplecert ENCRYPTION BY PASSWORD = 'All you need is love' WITH SUBJECT = 'Certificate for example_sp', START_DATE = '20020101', EXPIRY_DATE = '20200101' go -- Create the certificate user and this contact form EXECUTE AS USER = 'testuser' go -- First run the unsigned procedure. That is, no statements can precede or follow it. thanks & regards pjp Followup May 19, 2006 - 9:03 am UTC you don't have the privilege to grant select on that object is what that means. How To Use Dblink In Oracle Sql
You may already be aware of the risk of SQL injection, and you have taken the steps necessary to protect your procedure against this attack. CREATE DATABASE jobstarttest go USE msdb -- Create certificate in msdb. To open an individual database for cross-db chaining, use the command ALTER DATABASE db SET DB_CHAINING ON. have a peek here Our example setup is this one: CREATE TABLE testtbl (a int NOT NULL, b int NOT NULL) go CREATE PROCEDURE example_sp AS EXEC ('SELECT a, b FROM testtbl') go GRANT EXECUTE
You can just use a parameterized cursor and "hide the nastiness" in a package spec somewhere (instead of a view) create or replace package my_nasty_query as cursor c( p_ctgr_id in number Ora-00942 Thanks! /Pierre Oberg Update, 2000-07-05. You could write a plsql procedure do that that, but you should just use sqlplus at that point.
CREATE TABLE testtbl (a int NOT NULL, b int NOT NULL, owner sysname NOT NULL) INSERT testtbl (a, b, owner) VALUES (47, 11, 'testuser') INSERT testtbl (a, b, owner) VALUES (17,
SQLServer comes with no less than 13 pre-defined schemas. Now, when the stored procedure is executed, all of the other data for Employee 1 will be picked up from the database, and the only field to be updated will be The procedures perform validations of business rules to protect the integrity of the database. Ora-06512 Visual Basic Developer Visual Basic Developer 2001 January 2001 January 2001 A Reluctant DBA's Introduction to Stored Procedures A Reluctant DBA's Introduction to Stored Procedures A Reluctant DBA's Introduction to Stored
As long it's only those two, it's fine, but then the next guy comes with his two databases. If test succeeds, this data should disappear. How much slower it could be to use a function instead of a subquery ? Check This Out tbl1 is owned by A, whereas tbl2 is owned by user B.
To keep things simple and non-confusing if that is possible, lets first create two databases, two procedures and build out the basic framework from the article for two user stored procedures. Signing Procedures with Certificates We will now turn to the first of the two methods added in SQL2005 to grant permissions through stored procedures, signing a procedure with a certificate. A synonym allows access to a table on a remote database using the same syntax that you would use to access a table on a local database. See Also: "Users of Database Links" for an explanation of database link users "Viewing Information About Database Links" for an explanation of how to hide passwords from non-administrative users Global Database
CREATE PUBLIC DATABASE LINK hq CONNECT TO jane IDENTIFIED BY doe USING 'hq'; See Also: "Specifying Link Users" to learn how to specify users when creating links Connected User Database Links CREATE PROCEDURE reload_sp AS SELECT name, type, usage FROM sys.login_token SELECT name, type, usage FROM sys.user_token TRUNCATE TABLE reloadable EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv'' WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')') go -- The same [email protected]> commit; Commit complete. It is sort of a 2pc, but can take shortcuts since we know the number of participants and control the data entirely.
If so how can I accomplish it thru triggers. Using impersonation with EXECUTE AS. Best regards Pierre Oberg and we said... By having multiple lines of defence you can reduce the risk for this to happen.
It seemed that something was wrong with this site yesterday. Sign the procedure with the certificate, each time you have changed the procedure. There are two exceptions to this rule: system procedures and dynamic SQL invoked through EXEC() or sp_executesql. PRINT 'EXEC sp3, permission error' EXEC sp3 go -- Stop being tester and clean up.
As you can see, I added this statement to the two test procedures in the example: SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token When we run unsigned_sp, this returns SYSTEM_USER INSERT reloadable (a, b, c) VALUES (12, 23, 34) go -- Test procedure with BULK INSERT. Does Microsoft support signing of msdb procedures? What we're going to do next is create a stored procedure to add or update a record.