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  • DataguardOracleTroubleshoot

    ORA-19527: physical standby redo log must be renamed

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

      ORA-19527: physical standby redo log must be renamed Error:ORA-19527: physical standby redo log must be renamedORA-00312: online log 7 thread 0: ‘G:ORACLEORADATASTANDBY05.LOG’ At DR site, we got the error …

  • DataguardOracleTroubleshoot

    Step to resize standby redolog files in Dataguard

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

      Step to resize standby redolog files In Data-guard, if we recreate or add the standby redolog files due to thread number issue or Size mentioned wrong then in that …

  • DataguardOracle

    Verify before the Switchover to physical standby in Dataguard

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

      Steps verify for Switchover Dataguard to physical standby Before Switchover the Dataguard in production Server. You need to check the value of switch over column in v$database.If it having …

  • DataguardOracle

    LOG_ARCHIVE_DEST_n parameter setting in Oracle Dataguard

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

     LOG_ARCHIVE_DEST_n: this parameter is used to transfer the archived redo from the primary database to standby database. Standby to primary in case of switchover. Note: LOG_ARCHIVE_DEST_n destination must have either …

  • OraclePerformance Tuning

    Trace the SQL Query with SQL ID in Oracle

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

     1. Identify your SQL ID of SQL Query which need to trace. SELECT sql_id, plan_hash_value, substr(sql_text,1,40) sql_textFROM v$sqlWHERE sql_text like ‘SQL QUERY%’;2. Enable the trace of SQL with using SQLID …

  • OracleTroubleshoot

    ORA-04030: out of process memory

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

     Error in Alert Log Sun Nov 25 02:14:17 2018Unable to allocate memory for new incident error in file E:ORACLE12Cdiagrdbmsicictraceic_m001_6448.trc:ORA-04030: out of process memory when trying to allocate 20520 bytes (pga …

  • OracleRac

    Configure the Shared Single Client Access Name (SCAN) in Oracle RAC

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

      Configure the Shared Single Client Access Name (SCAN) Single Client Access NameIn release 11g, SCAN is introduced, In SCAN act as cluster alias,you does not need to change the …

  • OracleRac

    Change the VIP address in Oracle RAC Environment

    by tuanlp September 25, 2023
    by tuanlp September 25, 2023

     1. Stop all the services running on the Node srvctl stop service -db database_name -service “service_name_list” -node node_name–Examplesrvctl stop service -db grid -service “sales,oltp” -node NODE1 2. Check the VIP …

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My name is Tuanlp, freelance Sys Admins in HaNoi, VietNam. Welcome to my internet journal where I started my learning journey.

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