摘要:
SELECT COUNT(字段name) AS con,字段name,重复字段pc FROM 表名 GROUP BY 重复字段pc HAVING con>=2 阅读全文
posted @ 2019-04-28 15:39
闫超辉
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摘要:
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String dateString = format.format(日期); //日期转string Date sDate = format.parse(dateString); Calendar cal = Calendar.getInstance(); cal.setT... 阅读全文
posted @ 2019-04-28 14:28
闫超辉
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