some Users Might Get This Error:
ORA-12505, TNS: listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
localhost:1521: xe
This Is my Solution:
1.Open And Connect to Oracle Database
2. alter system set local_listener = '(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))' scope = both;
3.alter system register;
4.Exit
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