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Alexander
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Список таблиц/индексов и их размеров
SELECT relname AS "relation" , pg_size_pretty ( pg_relation_size ( C . oid )) AS "size" FROM pg_class C LEFT JOIN pg_namespace N ON ( N . oid = C . relnamespace ) WHERE nspname NOT IN ( 'pg_catalog' , 'information_schema' ) ORDER BY pg_relation_size ( C . o...
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Смена пароля для пользователя postgres
В консоли ввести: sudo -u postgres psql Затем: \password postgres Введите новый пароль и выйдете из psql: \q
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Существует распространенное заблуждение, что Object.hashCode возвращает адрес объекта в памяти. Когда-то давно, наверное, так оно и было. Например, Dalvik VM до сих пор использует адрес объекта, сдвинутый на 3 бита вправо. Однако такая реализация неудачна: ...
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Настройка RMI
export JAVA_OPTS="-Xms2048m -Xmx4096m -XX:MaxPermSize=512m -Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.rmi.port=1099 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hos...
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Video from last Friday's supersonic, rocket-powered test flight of #SpaceShipTwo
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NASA's Morpheus lander conducted its third free flight test.
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Aya Napa, Cyprus, 09/2012
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