sql server - How to bulk update the date column -

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i have table 10000 records.

sample

id  transaction_id  contract_id contractor_id   servicedetail_id    servicemonth    unitsdelivered  createdate ---------------------------------------------------------------------------------------------------------------------------- 1   1   352 466 590 2016-03-01  203 2016-04-25 17:01:55.000 2   1   352 466 566 2016-03-01  200 2016-04-25 17:02:38.807 3   1   352 466 138 2016-04-13  20  2016-04-13 00:00:00.000 5   1   352 466 138 2016-04-14  21  2016-04-13 00:00:00.000 6   10011   40  460 68  2016-03-17  10  2016-04-25 17:20:13.413 7   10011   40  460 511 2016-03-17  15  2016-04-25 17:20:13.413 8   10011   40  460 1611    2016-03-17  20  2016-04-25 17:20:13.413 9   20011   352 466 2563    2016-02-05  10  2016-04-25 17:20:25.307 11  100 40  460 68  2016-03-17  10  2016-04-25 17:29:23.653

in table have servicemonth different dates.

i want update servicemonth column existing months last date.

  • suppose if have 2016-03-17 in table, should updated 2016-3-31
  • suppose if have 2016-05-12 in table, should updated 2016-5-31

can suggest single query update this?

eomonth: returns last day of month contains specified date, optional offset.

update ... set servicemonth = eomonth(servicemonth)

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