Oraculum Database Link

In dididi Oraculum environments, database links can soleo termino a communications semita inter duos databases. A database link termino a network iunctio, quod, optionally, a username quod password, utor ut Oraculum obvius quod statutum tempus a database session in longinquus database pro locus application prex.

Database link enable SQL editio ut exsisto semotus ex underlying physical network topology. Sic, whenever locus of a longinquus database changes, tantum link postulo exsisto updated, neque nec sulum quod sulum SQL quaero, significantly negotium of programmer.

Oraculum database link est termino in a imprimis database, quod may exsisto adsuesco assuesco tantum per users illius database. Si idem eadem idem database link nomen eram futurus adsuesco assuesco ex totus databases in network, links must exsisto termino identically per ut nomen in sulum of sulum databases. Huic scaena, facillimus via est ut exsisto global database link.

Database Link Partum

Login in Oraculum database ( per SQLPlus*, vel) ut a user quisnam has beneficium creo a database link quod fungor sequens to order:

PARTUM DATABASE LINK link_name
IUNGO UT user_name IDENTIFIED PER password
USURA ‘connection_string’;

qua connection_string est an viscus est tnsnames.ora ( usitas locus in $ORACLE_HOME/network/admin), quod enables Oraculum scio network semita ut longinquus database.

connection_string has sequens compages:

(genus=
(oratio=
(PROTOCOL = TCP) ( populus = host_name/ip_address) ( prodigium = 1521)
)
(CONNECT_DATA =
(servo = DEDICATED)
(SERVICE_NAME = database_name)
)
)

Database Link Deletion

Ut delete a database link:

OCCUMBO DATBASE LINK link_name;

maximus: page est apparatus reddo quod dummodo " ut est" vacuus warranty. Apparatus reddo may exsisto difficile dictu agnosco. Commodo relatum utexemplar English article whenever possible.

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