sql - Firebird - select rows with date field having values within this week -

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the title pretty explains it, trying select rows table date field has values within current week. want rows current week's monday until current day.

example: 

 id   adate --------------- 1    11-11-2010 2    12-11-2010 3    13-11-2010 4    14-11-2010 5    15-11-2010

the rows want in case are:

 id   adate --------------- 4    14-11-2010  //this week's monday 5    15-11-2010  //till today

any please?

this work on week sunday saturday. shall adapt if want weeks monday sunday:

select *   mytable  adate between          cast('now' date) - extract(weekday cast('now' date))  --prev sunday          ,          cast('now' date) - extract(weekday cast('now' date)) + 6  --next saturday          ;

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