How to export oracle database query data

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:

• SQL*Plus: Use the SPOOL command to export query results to text file.
• Oracle Data Pump: Use the expdp and impdp commands to export and import data into the database.
• Oracle SQL Developer: Use the export tool to export data to various formats such as CSV, XML, and JSON.

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

1. Right-click the table or view you want to export.
2. Select "Export Data".
3. Select the export format and target file.

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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