43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
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"""列出两库全部时间列的类型，并做差异比对（只读）"""
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import pymysql
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SQL = """
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SELECT TABLE_NAME, COLUMN_NAME, DATA_TYPE, IS_NULLABLE,
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IFNULL(CAST(COLUMN_DEFAULT AS CHAR),'<NULL>')
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA=%s AND DATA_TYPE IN ('timestamp','datetime')
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ORDER BY TABLE_NAME, ORDINAL_POSITION
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"""
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def snap(db):
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c = pymysql.connect(host="10.8.0.252", user="root", password="Hbhyg731024@", database=db)
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cur = c.cursor()
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cur.execute(SQL, (db,))
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rows = {(r[0], r[1]): (r[2], r[3], r[4]) for r in cur.fetchall()}
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c.close()
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return rows
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dev, prd = snap("pms_dev"), snap("pms")
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keys = sorted(set(dev) | set(prd))
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print("%-30s %-20s %-34s %-34s %s" % ("table.column", "", "pms_dev", "pms", "一致"))
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diff = 0
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for k in keys:
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d, p = dev.get(k, ("<missing>",) * 3), prd.get(k, ("<missing>",) * 3)
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same = d == p
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if not same:
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diff += 1
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print("%-30s %-20s %-34s %-34s %s" % (f"{k[0]}.{k[1]}", "", str(d), str(p), "OK" if same else "*** DIFF ***"))
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print()
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print("时间列总数:", len(keys), " 不一致:", diff)
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print()
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print("pms_dev 中仍是 TIMESTAMP 的列:")
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for k in keys:
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if dev.get(k, ("",))[0] == "timestamp":
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print(" ", f"{k[0]}.{k[1]}", dev[k])
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print("pms(生产) 中仍是 TIMESTAMP 的列:")
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for k in keys:
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if prd.get(k, ("",))[0] == "timestamp":
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print(" ", f"{k[0]}.{k[1]}", prd[k])
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