Methods for Restoring Dump Files in PL/SQL
Method 1: Using Data Pump Import (impdp)
Data Pump Import (impdp) is a PL/SQL multi-purpose tool which can be used for restoring the dump files. Moreover data and database objects can be easily imported through this approach.
Example:
Suppose the user wants to import data and database objects from a dump file into the Oracle database.
impdp scott/tiger@orcl directory=DATA_PUMP_DIR dumpfile=example_dump.dmp logfile=import.log
Explanation: The impdp command is used with the specified username (scott) and password (tiger) to connect to the Oracle database (orcl). The directory parameter specifies the directory where the dump file (example_dump.dmp) is located. The dumpfile parameter specifies the name of the dump file to import. The logfile parameter specifies the name of the log file to store import operation details.
Method 2: Using Oracle Import (imp)
Oracle Import (imp) is another utility that can be used against the dump files. While impdp is mostly preferred by Oracle versions newer than 12c, imp is still quite relevant for backward compatibility and some special use cases.
Example:
Suppose user wants to import data and database objects from a dump file into the Oracle database.
imp scott/tiger@orcl file=example_dump.dmp log=import.log
Explanation: The imp command is used with the specified username (scott) and password (tiger) to connect to the Oracle database (orcl). The file parameter specifies the name of the dump file (example_dump.dmp) to import. The log parameter specifies the name of the log file (import.log) to store import operation details.
How to Restore a Dump File in PL/SQL?
Dump files are essential in database management, storing data and structure in a binary format. They’re important for backups, migrations, and setting up new environments. Typically created using tools like Oracle Data Pump or Export, they contain a database’s data and structure, including tables, views, and indexes.
In this article, We will learn about How to restore a dump file in PL/SQL by understanding various methods with the help of practical examples and so on