linguini
39 lines
733 B
Python
39 lines
733 B
Python
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import sqlite3
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db = "paintingzz.db"
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conn = sqlite3.connect(db)
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cur = conn.cursor()
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table = "inspections"
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# Find completely NULL columns
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cur.execute(f"PRAGMA table_info({table})")
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columns = [row[1] for row in cur.fetchall()]
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empty_columns = []
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for col in columns:
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print('cucurucu')
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cur.execute(
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f'SELECT COUNT(*) FROM "{table}" WHERE "{col}" IS NOT NULL'
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)
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count = cur.fetchone()[0]
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if count <100 :
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print('list b growing')
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empty_columns.append(col)
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print(empty_columns)
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print("Removing:", empty_columns)
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# SQLite >= 3.35 supports DROP COLUMN
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for col in empty_columns:
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cur.execute(
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f'ALTER TABLE "{table}" DROP COLUMN "{col}"'
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)
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conn.commit()
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conn.close()
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