69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
import psycopg2
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import csv
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from psycopg2 import sql
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from datetime import datetime
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def format_datetime(value):
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if isinstance(value, datetime):
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return value.strftime('%Y-%m-%d %H:%M:%S')
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return value
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def export_table_to_csv(host, port, database, user, password, table_name, csv_file_path):
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try:
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# データベースに接続
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conn = psycopg2.connect(
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host=host,
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port=port,
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database=database,
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user=user,
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password=password
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)
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# カーソルを作成
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cur = conn.cursor()
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# テーブルの全データを取得
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cur.execute(sql.SQL("SELECT * FROM {}").format(sql.Identifier(table_name)))
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# 列名を取得
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column_names = [desc[0] for desc in cur.description]
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# 結果を取得
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rows = cur.fetchall()
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# CSVファイルに書き込み
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with open(csv_file_path, 'w', newline='', encoding='utf-8-sig') as csvfile:
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csvwriter = csv.writer(csvfile)
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# 列名を書き込み
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csvwriter.writerow(column_names)
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# データを書き込み
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for row in rows:
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# 各フィールドを適切にフォーマット
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formatted_row = [format_datetime(field) if field is not None else '' for field in row]
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csvwriter.writerow(formatted_row)
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print(f"テーブル '{table_name}' の内容を '{csv_file_path}' に出力しました。")
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except (Exception, psycopg2.Error) as error:
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print("エラーが発生しました:", error)
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finally:
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# データベース接続を閉じる
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if conn:
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cur.close()
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conn.close()
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print("データベース接続を閉じました。")
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# 使用例
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# 使用例
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host = "192.168.1.220"
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port = "12245"
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database = "dislocker"
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user = "suti7"
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password = "Testing1234"
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table_name = "pc_usage_history"
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csv_file_path = "./output.csv"
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export_table_to_csv(host, port, database, user, password, table_name, csv_file_path)
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