
How to create a DB link between two oracle instances
2017年3月16日 · connect to the user schema in which we need a private db link: CREATE DATABASE LINK <dbklink name> CONNECT TO <target db userschemaname> IDENTIFIED …
database - How to SELECT in Oracle using a DBLINK located in a ...
A public DB link "DB_LINK" located in "SCHEMA_B" The DB_LINK is working when using the DB user "SCHEMA_B" directly; Question: When logged on as "MYUSER", what is the correct …
How to extract ddl for oracle db links? - Stack Overflow
Output from above SELECT 1. create public database link "link1" using "db_alias" 2. create public database link "link2" using "db_alias" 3. create database link "link3" using "db_alias" I recreate …
How do you find out which database links are used in queries for …
2010年3月18日 · If the user is not a DBA user, it will not have access to DBA_DB_LINKS. Also, USER_DB_LINKS will display the db links created by the current user, so that won't list all the …
sql - How to use (install) dblink in PostgreSQL? - Stack Overflow
2010年10月5日 · Since PostgreSQL 9.1, installation of additional modules is simple.Registered extensions like dblink can be installed with CREATE EXTENSION:
How can i create read only database link in oracle
2010年10月8日 · As Alex points out, you could create a new user on the local database, create the database link as a private link in that new schema, create views in the new local schema …
Connecting Oracle to SQL Server via database link
2010年10月10日 · CREATE DATABASE LINK sqlservdb CONNECT TO myuser IDENTIFIED BY mypass USING 'sqlserver.db'; Did you try a connect name without dot (e.g. sqlserver)? – …
sql - oracle - commit over dblink? - Stack Overflow
2012年3月6日 · If I connect to an oracle database as user smith, and issue the following 3 commands: update smith.tablea set col_name = 'florence' where col_id = 8; insert into …
Oracle SQL: JOIN by dblink - Stack Overflow
2015年4月27日 · I use next SQL-query in Oracle DB: SELECT T1.*, T3.* FROM MyTable1 T1 INNER JOIN MyTable2 T2 ON T2.Id1 = T1.Id LEFT JOIN MyTable3@dblink1 T3 ON T3.Id2 = …
How to check if a database link is valid in Oracle?
2018年3月13日 · function is_link_active( p_link_name varchar2 ) return number is v_query_link varchar2(100) := 'select count(*) alive from dual@'||p_link_name; type db_link_cur is REF …