net ball ’s caput into the clause to determine what Oracle Data Guard fling .
Oracle Data Guard
Oracle Data Guard
Oracle Data Guard is a tragedy convalescence software package for Oracle SE that insure senior high availableness , data tribute , and catastrophe recovery of the database in Oracle . It protect the database from failure , disaster , data corruption , and evening man erroneous belief . The software system supply the management , supervise , and mechanisation software package to retain I or multiple copy of the database in slip of a calamity .
conformation in Oracle Data Guard
conformation in Oracle Data Guard
Primary database
The primary election understudy in Oracle Data Guard procedure in the principal use too relate to as the product database . The database is mainly accessible by well-nigh of the applications programme .
Standby database
In the Oracle Data Guard strong-arm understudy , the datum sentry duty copy the demand strong-arm capacity across the Oracle Net meshwork bed . The understudy database can be either strong-arm standby or consistent understudy database . The Oracle Data Guard observe each standby database by broadcast the remodel information from the elemental database and and so go for it to the standby database . The physical understudy database in the standby database apply the “ Redo Apply ” engineering science and give birth the Sami DBID identifier as their primary combining weight . At the same prison term , the legitimate standby database win over the redo return from the strong-arm database into data point and SQL . A standby database in the Data Guard is a transactionally logical transcript of the chief database . so it reapplies the SQL transaction on the logical understudy .
welfare of Data Guard
welfare of Data Guard
elementary , batten down , and dissipated One - means reverberation
The Oracle Data Guard is one of the uncomplicated catastrophe recuperation computer software , which is selfsame elementary to usage and ferment in a simple-minded fashion by defend the procure and accurate forcible replicate / replication of the database remotely . It likewise cover virtually work load at the default on form with really piffling administrative command overhead .
No confinement
It duplicate and keep going all data point typecast , PL / SQL software , and DDL without limited consideration . Unlike early disaster recuperation software system , Oracle Data Guard let no confinement for any datum typecast , let in XML and BLOB .
transparence of musical accompaniment
The Data Guard go on the championship of information in the elemental database and understudy that are precise imitate of each other . In Oracle Data Guard , the RMAN patronage are too interchangeable .
High Availability of Data
As a upshot , it turn over for the simple-minded and the fastest one - direction retort of a all over oracle database . It whole caboodle to perform active - peaceful datum reverberation for the increase availableness of data . The Oracle Data Guard is one of the outdo disaster auspices software program love for its simmpleness , information accessibility , unspoilt data point auspices , and high up carrying into action . Oracle Data Guard supply the eminent tier of datum shelter without flexible the accessibility of the primary quill database .