How to check if a date is in a list of dates - TSQL -

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i trying create sql query checks if date in list of dates query doesn't work...

select *  table1 field1 = value1   , convert(nvarchar(15),date_start,101) in      (select convert(nvarchar(15),date_end,101)               table2          )

this query should return values doesn't...

do not convert data think there no need

try : 

select *  table1 field1 = value1   , date_start in      (select date_end table2)

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