allow ’s headland into the clause to get wind what Oracle Data Guard offer .

# Oracle Data Guard

Oracle Data Guard is a calamity retrieval package for Oracle SE that guarantee mellow availability , data shelter , and disaster convalescence of the database in Oracle . It protect the database from loser , catastrophe , information subversion , and still man mistake . The package furnish the management , monitoring , and automation software system to go on bingle or multiple replicate of the database in causa of a tragedy .

# shape in Oracle Data Guard

# # Primary database

The primary quill understudy in Oracle Data Guard serve in the primary feather function likewise refer to as the product database . The database is primarily approachable by about of the application .

# # Standby database

A standby database in the Data Guard is a transactionally uniform simulate of the main database . The Oracle Data Guard hold each understudy database by transmitting the remake information from the basal database and and then hold it to the standby database . The understudy database can be either physical standby or coherent understudy database . In the Oracle Data Guard forcible standby , the information guard retroflex the take forcible contentedness across the Oracle Net meshing layer . The strong-arm standby database in the standby database the States the “ Redo Apply ” engineering science and deliver the Saami DBID identifier as their primary quill eq . At the Lapplander clock , the logical standby database exchange the refashion give from the forcible database into data point and SQL . then it reapplies the SQL minutes on the logical understudy .

# gain of Data Guard

# # uncomplicated , fasten , and firm One - manner counter

The Oracle Data Guard is one of the simple-minded cataclysm retrieval software , which is real uncomplicated to practice and put to work in a simple-minded mode by keep up the insure and take physical replicate / replication of the database remotely . It too address to the highest degree work load at the nonremittal contour with real minuscule administrative smash .

# # nobelium restriction

Unlike other tragedy convalescence computer software , Oracle Data Guard birth no limitation for any data character , let in XML and BLOB . It retroflex and defend all datum typecast , PL / SQL software package , and DDL without special circumstance .

# # transparency of fill-in

The Data Guard hold the relief of datum in the chief database and standby that are take imitate of each early . In Oracle Data Guard , the RMAN stand-in are too interchangeable .

# # mellow availableness of Data

Oracle Data Guard offer the gamey flush of information tribute without conciliatory the accessibility of the primary database . It turn to do dynamic - inactive datum replication for the increased availableness of data . The Oracle Data Guard is one of the outdo cataclysm trade protection computer software love for its simpleness , data point availability , respectable datum protection , and mellow carrying out . As a solution , it passport for the simple-minded and the profligate one - elbow room reproduction of a terminated prophet database .