Oracle Database 19c Administration Workshop Student Guide Pdf Updated |verified|

Your 19c PDB is running slow due to a rogue SQL query.

Hands-on instructions for Database Configuration Assistant (DBCA), instance management, and network configuration via Oracle Net Services. Security & Space Management: Your 19c PDB is running slow due to a rogue SQL query

| Task | SQL | |------|-----| | Tablespace usage | SELECT tablespace_name, (bytes - free)/bytes*100 pct_used FROM dba_data_files, dba_free_space; | | Sessions by status | SELECT status, COUNT(*) FROM v$session GROUP BY status; | | Largest objects | SELECT owner, segment_name, bytes/1024/1024 MB FROM dba_segments ORDER BY bytes DESC FETCH FIRST 10 ROWS ONLY; | | Recent errors | SELECT * FROM v$diag_alert_ext WHERE originating_timestamp > SYSDATE - 1; | (bytes - free)/bytes*100 pct_used FROM dba_data_files

Configuring listeners, naming methods, shared server architecture, and Oracle Connection Manager Storage & Multitenant COUNT(*) FROM v$session GROUP BY status