By creating a custom view or selecting the data you want with a query and then exporting that view or the query result using exp.
Here's how you can do it:
- Create a View: Create a view that represents the data you want to export.
CREATE VIEW export_view AS
SELECT column1, column2, column3
FROM your_table_name
WHERE conditions;
Replace
column1, column2, column3, your_table_name, and conditions with appropriate values for your scenario.- Export the View: Once you have created the view, you can export it using the
expcommand.
exp username/password@SID file=schema_name.dmp log=schema_name.log tables=export_view
Replace username, password, SID, schema_name.dmp, and schema_name.log with appropriate values.
This approach allows you to export data based on the criteria defined in the view. The exported data will include the results of the query defined in the view.
Alternatively
Here's an example of how you can achieve this using a Unix/Linux shell script:
#!/bin/bash
# Set Oracle environment variables
export ORACLE_HOME=/path/to/oracle_home
export PATH=$ORACLE_HOME/bin:$PATH
export ORACLE_SID=your_sid
# SQL query to get the table names starting with 'CE'
sqlplus -s username/password <<EOF
SET PAGESIZE 0
SET FEEDBACK OFF
SET HEADING OFF
SET VERIFY OFF
SPOOL ce_tables.txt
SELECT table_name FROM user_tables WHERE table_name LIKE 'CE%';
SPOOL OFF
EXIT
EOF
# Read table names from the output file and export each table
while read -r table_name; do
exp username/password tables="$table_name" file="${table_name}_export.dmp" log="${table_name}_export.log"
done < ce_tables.txt
Tags:
Oracle