I have just finished upgrading 11g to 19c.
When I do query "SELECT name,value,display_value,isdefault,isbasic FROM V$PARAMETER WHERE name IN ('memory_target', 'sga_target', 'pga_aggregate_target');", the result is as follows :
SGA_TARGET = 0
MEMORY_TARGET = 0
PGA_AGGREGATE_TARGET = 30 GB.
What can I tell about these memory values ?
Is this telling me that AMM is being used ? What I know, for manual management, all values must be 0.