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SQLコマンドめも

Posted at

sqlファイル実行

cd [sqlのある場所]
mysql -uxxxx -pxxxx
mysql> source [sqlファイル名]

表示

  • 縦表示
select * from order where id = 123 \G;
  • 検索結果を | で区切りたい
SELECT
  GROUP_CONCAT(DISTINCT  concat_ws('|', code, name)  ORDER BY code separator '|')
FROM
  ...

# 結果
01|aaa|02|bbb|03|ccc

CSV

  • タブ出力
into outfile "/tmp/sample1.csv" fields terminated by '\t';

日時

  • 範囲指定

whereで日時の範囲を指定することがあるが

where rd.created_at >= '2015-04-01' and rd.created_at <= '2016-04-01' 

betweenでも指定できる

rd.created_at between '2015-04-01' and '2016-04-01' 

DB

  • トランザクション制御
start transaction;
SQL文
正常に終了したことを確認
commit;
  • ホスト名
mysql> show variables like 'hostname';
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