Инструменты Firebird

Firebird3 - добавление/удаление пользователей
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Соединение с БД с помощью isql:
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CONNECT security3.fdb USER SYSDBA PASSWORD 'masterkey';


Проверка текущих пользователей:
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SELECT
    CAST(U.SEC$USER_NAME AS CHAR(20)) LOGIN,
    CAST(A.SEC$KEY AS CHAR(10)) TAG,
    CAST(A.SEC$VALUE AS CHAR(20)) "VALUE",
    U.SEC$ADMIN AS ADM,
    U.SEC$PLUGIN "PLUGIN"
FROM SEC$USERS U
    LEFT JOIN SEC$USER_ATTRIBUTES A
    ON U.SEC$USER_NAME = A.SEC$USER_NAME;


Как узнать, кто владелей базы:
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SELECT DISTINCT RDB$OWNER_NAME AS DATABASE_OWNER
  FROM RDB$RELATIONS WHERE (RDB$SYSTEM_FLAG = 1);


Создание/изменение пользователей
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CREATE USER name PASSWORD 'password' [<options>] [<tags>];

[CREATE OR] ALTER USER name [SET] [PASSWORD 'password'] [<options>] [<tags>];

ALTER CURRENT USER [SET] [PASSWORD 'password'] [<options>] [<tags>];

DROP USER name;


В качестве опций можно указывать:
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create user USERNAME password '111' firstname 'John' lastname 'Ivanov';

create user USERNAME password '111' grant admin role;

alter user USERNAME set inactive;