如何用另一个范围更新整个日期范围

Question

I have a table name shiftsDates which have following column

**ShiftDateID**  **ShiftID** **ShiftDate** **IsNonShiftDate**
 1                 20          3/2/2012       false
 2                 20          3/3/2012       false
 3                 20          3/4/2012       true

I want to update ShiftDate and IsNonShiftDate column if user select another shift date range for shift '20'. From UI I have only ShiftID value. kindly give any hint how i accomplish this task. thanks

Answer 1

I don't know if I understand the question 100% :) But I give it a try. You have aa ShiftDateId e..g 2. and want to update all 3 rows.

UPDATE YourTable
SET ShiftDate = <YourDate>
  , IsNonSiftDate = <true|false>
WHERE ShiftId = (SELECT ShiftId FROM YourTable WHERE ShiftDateId = <<ourId>)

But try to answer give me more questions? - Column InNonShiftDate is related to work days, so you have to find out WeekDay() of the Date? - If you get a range (start / end ) then you want to insert a row for each day in that range? This would be a stored procedure with a CURSOR then...

So I guess give us more Infos about your environment to give you a better answer.