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DateTime startTime=DateTime(em_1.Text)
DateTime endTime=DateTime(em_2.Text)

string sql
sql = dw_1.GetSQLSelect()+"Where (StartTime> '"+startTime+"') and (EndTime < '"+endTime+"')"

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string startTime,endTime
startTime=em_1.Text
endTime=em_2.Text

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sql = dw_1.GetSQLSelect()+" Where (StartTime> '"+startTime+"') and (EndTime < '"+endTime+"')"



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