mysql select from table a where condition x and subselect -

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i want count amount of registries in table specific amount of time determined @ table b.

i looking proper way of this:

select count(*) total table_a a.created >= '0000-00-00 00:00:00' , a.created <= (select table_b.end table_b.id = 13)

basically, table_b consists of 3 columns: int primary key named 'id', datetime named 'start', , other datetime named 'end'. way have identified weeks of current year.

just in case need that, proper way that:

select count(*) total table_a a.created >= '0000-00-00 00:00:00' , a.created <= (select table_b.`end` table_b table_b.`id`=13)

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