How to export large amount of data using sql developer - Oracle

Question

I want to upload some data from UAT DB to DEV DB. When I try to do this from Export function in SQL Developer, I got an error File C

Answer 1

You can use spool the query and save the results as CSV or XLSX files for larger results. For example:

spool "D:\Temp\Report.csv"
SELECT /*csv*/ select id,name,age from EMP;
spool off;