Oracle Import Export Methods
There are various methods available for importing and exporting data in Oracle database, here are some commonly used options:
- SQLLoader is a tool provided by Oracle for importing data from external files into database tables. By writing a control file that specifies the mapping between the data file and the target table fields, you can achieve flexible data import operations.
- Database linking: Data can be transferred from one database to another through linking databases, which is typically used for migrating or synchronizing data between different databases.
- Oracle provides EXP (export) and IMP (import) tools to achieve the exporting and importing operations of the database. With these tools, you can export the entire database or specific objects within the database (such as tables, views, etc.) into a binary file and then import them back when needed.
- Oracle provides the Data Pump tool for efficient importing and exporting of data. Data Pump can export and import objects such as tables, views, and stored procedures in databases, supporting parallel processing and incremental import functions to improve the efficiency and performance of data importing and exporting.
- External Table: Oracle supports the concept of external tables, which allows data in external files to be mapped to the database for querying and processing.
The above are some commonly used methods for importing and exporting Oracle databases, depending on specific needs and scenarios, you can choose the appropriate method for operation.
