A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message . Which is the recommended sequence of operations you need to perform for the query successfully?（） Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace. 。 Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online. 。 Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.。 Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.&e。
关于石膏技术性能的说法，正确的是（）。 防火性能差。 耐水性差。 凝结硬化慢。 硬化易收缩。
User A issues the command: LOCK TABLES pets READ; Which command can User B execute against the pets table?（） UPDATE pets…。 SELECT….FROM pets。 INSERT INTO pets…。 ALTER TABLE pets&helli。
A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command：java games.cards. Poker What allows the user to do this？（） put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java。 put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java/*.jar。 put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java/Poker.jar。 put Poker.jar in directory /stuff/java/games/cards， and set the CLASSPATH to include /stuff/java。
根据马斯洛的需要层次理论和现代动机心理学的研究，儿童第三层次的需要即社会性与自我发展的需要，这一层次需要包括（） 身体活动的需要、基本生存的需要和安全的需要。 理解环境的需要和影响环境的需要。 社会性交往的需要、自我实现的需要和尊敬（认可）的需要。 最佳觉醒水平的需要和探究的需要。
The database is configured in ARCHIVELOG mode and regular complete database backups are taken. Theloss of which two types of files may require a recovery with the RESETLOGS option? （）(Choose two)
