Tuanlp.com
  • Oracle
    • Backup&Recovery
    • Rac
    • Dataguard
    • Performance Tuning
    • Troubleshoot
  • PostgreSQL
  • MySQL
  • SQL Server
  • Data Science
    • Tableau
    • Power BI
  • Linux
    • VMware
  • Other
  • Courses
  • Tuanlp.com

    Error: ORA-16765: Redo Apply is running

    Khắc phục lỗi recovery khi OPEN RESETLOGS lỗi SYSTEM trong Oracle Database?

    check the FRA usage and troubleshoot the issue in oracle DB

    Increase the size of SGA in Oracle

    tuanlpSeptember 27, 2023312 views

     Steps to increase the size of SGA memory in Oracle Check the SGA parameter which show the size of SGA allocated in Oracle SQL> show parameter sga_ NAME TYPE VALUE…

    Read more

    Configure SSH Keys authentication connectivity in Oracle Linux

    tuanlpSeptember 27, 2023304 views

    Configure SSH keys connectivity for RAC Environment Oracle Install the yum package. (Run on both nodes) yum install openssh-server Start the SSH service. (Run on both nodes) service sshd start…

    Read more

    ORA-65096: invalid common user or role name

    tuanlpSeptember 27, 2023344 views

    Cause: An attempt was made to create a common user or role with a name that was not valid for common users or roles. Error: While creating a user in the…

    Read more

    Check the number of CPU & cores with SQL statement in Oracle

    tuanlpSeptember 27, 2023369 views

     Check the count of CPU count with SQL in Oracle SQL> SELECT value CPU_COUNT FROM v$system_parameter2 WHERE LOWER(name) = ‘cpu_count’; CPU_COUNT ———— 8 Check the count of CPU present with…

    Read more

    Count the number of sessions from the application in Oracle

    tuanlpSeptember 27, 2023308 views

    Check which application cause more number of sessions and processes in Oracle —Check the count of session for particular applications SELECT s.program,count(*) “noofsessions” from v$session s group by s.program; –Check…

    Read more

    Check maximum utilization of open cursor in Oracle

    tuanlpSeptember 27, 2023326 views

     For error: ORA-01000: maximum open cursors exceeded ORA-00604: error occurred at recursive SQL level 1 Check the session which causes the issue: select a.value, s.username, s.sid, s.serial# from v$sesstat a,…

    Read more

    Check the memory usage for PDB database in Oracle

    tuanlpSeptember 27, 2023305 views

    Monitor and manage the Memory Usage of PDBs databases in Oracle. Check the memory usage of PDB databases COLUMN PDB_NAME FORMAT A10 SELECT r.CON_ID, p.PDB_NAME, r.SGA_BYTES, r.PGA_BYTES, r.BUFFER_CACHE_BYTES, r.SHARED_POOL_BYTES FROM…

    Read more

    Find uncommitted transaction in Oracle

    tuanlpSeptember 27, 2023299 views

    Find the uncommitted or incomplete transaction in Oracle Query with V$transaction give result which transaction is not commited yet. set lines 250 column start_time format a20 column sid format 999…

    Read more

    Posts navigation

    1 … 26 … 37
    View Desktop Version

    Powered by PenciDesign

    Back To Top