Oracle (12cR1) --準備 drop tablespace test including contents and datafiles;create tablespace test datafile '/u01/app/oracle/oradata/orcl/test.dbf' size 10M autoextend on maxsize unlimited; drop table tab1;create table tab1(col1 int) table…

Oracle (12cR1)drop table tab1;drop table tab2; create table tab1(col1 int,col2 int);create table tab2(col1 int,col2 int); create unique index ind11 on tab1(col1);create unique index ind12 on tab1(col2); create index ind21 on tab2(col1);cre…

Ubuntu https://qiita.com/kasama123/items/aa3c6ffd0cff1d951888 # リポジトリ追加add-apt-repository ppa:wireshark-dev/stableapt update# wiresharkインストールapt install wireshark #権限設定usermod -aG wireshark testuser 再ログイン Debian (9) a…

Ubuntu (16)(18) https://off.tokyo/blog/ubuntu-mail-send/ --1.メール送信ユーザ作成 useradd -d /home/mailuser mailuser mkdir /home/mailuserchmod 700 /home/mailuserchown mailuser:mailuser /home/mailuser --2.インストール apt install ssmtp vi /…

Ubuntu (16)(18)cat /etc/os-release Debian (9)cat /etc/os-release CentOS (7) cat /etc/redhat-release Windows Server (2012R2) winver