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14 Οκτ 2009 · I can think of four possible workarounds for your scenario: use fully-qualified-table-names when querying for the external table. MySQL supports the dbname.tablename -syntax to access tables outside the current database scope.
23 Φεβ 2023 · create or replace procedure test_link(o_ref OUT sys_refcursor) is begin OPEN o_ref FOR 'Select x.process_id FROM process_info@tlink x, pa_Exceptions e WHERE x.process_id=e.process_id'; end test_link; then i give grant execute on test_link to b; In Schema B: i create a snyonym for test_link as create synonym test_link for a.test_link; then when ...
1 Οκτ 2021 · Heterogeneous connections allow us to query data from non-Oracle databases using SQL. In this blog post we will see How to create a database link from Oracle to MySQL via ODBC. Below are the high-level steps we will follow to set up dblink. 1. Setup MySql User in MySQL Cluster 2. Install MySQL ODBC Drivers in Oracle Server 3.
You can move databases or tables from the database directory to other locations and replace them with symbolic links to the new locations.
9 Μαρ 2006 · If you want to know whether any database links exist in data dictionary views, and where the database links connect to, you can get the information from DBA_DB_LINKS view. Just launch your SQL*Plus or Toad, or whatever convenient to you and query the dba_db_links table.
Create a soft link in the data directory to the moved database directory: $> ln -s /path/to/mydb1 /path/to/datadir. The command creates a symlink named mydb1 in the data directory. Restart the server.
21 Ιαν 2019 · MYSQL TO ORACLE DATABASE LINK CREATION USING HETEROGENEOUS SERVICES. A database link is a pointer that defines a one-way communication path from an Oracle Database server to another database server. The remote database can be same oracle or it can be non-oracle database. To access non-Oracle systems you must use Oracle Heterogeneous Services.
