mysql - count first value, second value or both -


i need count, if first or second value true, should one, , if both correct, value should two:

 select count(*) table1 (cond1 or cond2)

it should this, cant it.

how can it?

thank in advance

select sum(cond1) + sum(cond2) table1 cond1 or cond2

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