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Написать условие "совпадает"
Size: a a a
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select * from tabl1_1 where not EXISTS (SELECT * from tabl1_2 WHERE tabl1_1.id = tabl1_2.id)
union all
select * from tabl1_2 where not EXISTS (SELECT * from tabl1_1 WHERE tabl1_2.id = tabl1_1.id)
вывод:"id" "summa1" "summa2"
"2" "200" "250"
"5" "500" NULL
"8" "800" NULL
"4" NULL "400"
"9" NULL "900"
"10" "1000" "1100"
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select * from tabl1_1 where not EXISTS (SELECT * from tabl1_2 WHERE tabl1_1.id = tabl1_2.id)
union all
select * from tabl1_2 where not EXISTS (SELECT * from tabl1_1 WHERE tabl1_2.id = tabl1_1.id)
вывод:"id" "summa1" "summa2"
"2" "200" "250"
"5" "500" NULL
"8" "800" NULL
"4" NULL "400"
"9" NULL "900"
"10" "1000" "1100"
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