У меня есть таблица ScriptLayer из которой я делаю подобный запрос:
select count(LayerId) from ScriptLayer where ScriptNameId = 1
select count(LayerId) from ScriptLayer where ScriptNameId = 1
SqlQuery s( "select count(LayerId) from ScriptLayer where ScriptNameId = 1" );
s.next();
int i = s.value( 0 ).toInt();
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