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BANNER BANNER_FULL BANNER_LEGACY CON_ID
Oracle Database 18c Express Edition Release 18.0.0.0.0 - Production Oracle Database 18c Express Edition Release 18.0.0.0.0 - Production
Version 18.4.0.0.0
Oracle Database 18c Express Edition Release 18.0.0.0.0 - Production 0
3 rows affected
ORA-00902: invalid datatype
V1 V2
XXX3 YYY1
XXX2 YYY2
XXX1 YYY3
1 rows affected

dbms_output:
XXX3	YYY1
XXX2	YYY2
XXX1	YYY3