1. Câu lệnh: dd if=/dev/zero of=/dev/sda bs=512 count=1 conv=notrunc dd if=/dev/zero of=/dev/sda wipefs -a /dev/sda

  Cài trên server 1 – installing unixodbc on zabbix server yum -y install unixODBC unixODBC-devel 2- installing instant client packages <https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html> # rpm -ivh oracle-instantclient12.1-basic-12.2.0.1.0-1.x86_64.rpm # rpm -ivh oracle-instantclient12.1-odbc-12.2.0.1.0-1.x86_64.rpm …

  Gia hạn thêm 180 ngày To extend the evaluation license follow the below procedure. Open an elevated command prompt. Type following command **slmgr -dlv** or **cscript.exe %windir%\system32\slmgr.vbs /dlv** you …

  1) Kiểm tra trước trong Source database: Step 1 : Kiểm tra kích thước cơ sở dữ liệu trong SOURCE: select ( select sum(bytes)/1024/1024/1024 data_size from dba_data_files ) + ( select …

  🚚 When trying to connect to an Oracle database, you might run into this error: ORA-01045: user xxx lacks CREATE SESSION privilege; logon denied The reason is that the …

 1. Câu lệnh: umount -l /PATH/OF/BUSY-DEVICE umount -f /PATH/OF/BUSY-NFS (NETWORK-FILE-SYSTEM)

 Login with F2 and go to the same place where you’d restart your management network…there’s a place there to reset your password,

💡 RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process Cause: The archive logs seems that it is not yet applied in the standby database. Select …