Oracle database provides the following methods for exporting data: SQL*Plus: Use the SPOOL command to export to a text file. Oracle Data Pump: Export to a dump file using the expdp command. Oracle SQL Developer: Export to various formats using the GUI.
Oracle database query data export
Method to export data
Oracle database provides a variety of methods for exporting data. The most commonly used methods are:
SPOOL
command to export query results to text file. expdp
and impdp
commands to export and import data into the database. Export data using SQL*Plus
<code>SPOOL <file_name>.txt SELECT * FROM <table_name>; SPOOL OFF</code>
Export data using Oracle Data Pump
<code>expdp username/password@<database_name> schemas=<schema_name> dumpfile=<dump_file_name>.dmp</code>
Export data using Oracle SQL Developer
Detailed steps to export data
1. Determine the data to be exported: Determine the specific table to be exported from the Oracle database, View or query results.
2. Select the export method: Select the most appropriate export method based on the amount of data, required format and degree of automation.
3. Configure export parameters: For each export method, configure the necessary parameters, such as the target file path, export format, and username and password for authentication.
4. Execute export: According to the selected method, execute the export command or use a graphical tool.
5. Verify export: After the export is complete, verify that the target file was successfully created and contains the expected data.
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