给定一个已排序的链表的头 head ， 删除所有重复的元素，使每个元素只出现一次 。返回 已排序的链表 。 示例 1： 输入：head = [1,1,2]输出：[1,2]示例 2： 输入：head = [1,1,2,3,3]输出：[1,2,3] 提示： 链表中节点数目在范围 [0, 300] 内-100 <= Node.val <= 100题目数据保证链表已经按升序
题目： 给定一个不含重复数字的整数数组 nums ，返回其 所有可能的全排列 。可以 按任意顺序 返回答案。 示例 : 输入：nums = [1,2,3] 输出：[[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] 思路： 全排列回溯，重点在于怎么交换顺序。还是回溯。 复杂度： 时间：O(n!) 空间：复杂
Choose the best answer You want to create a duplicate database DUP_DB from your production database PROD on the same host. The PROD database uses Automatic Storage Management (ASM) for storage. Regular backups are taken using RMAN connected to a recov
You accidentally drop the CUSTOMERS table, and then recover it by using the FLASHBACK TABLE command. Which two statements are true about the dependent objects of the CUSTOMERS table? A) All the triggers associated with the table are flashed back but
Q41 Which two are true about Recovery Manager (RMAN) diagnostic message output? (Choose two.) A. Media Management messages for SBT devices are always written to sbtio.log.B. RMAN error stacks should be read from the bottom up as that is the order in which
Examine this output: Which two are true? (Choose two.) A. Any PDB not specified in the plan will be unable to execute statements in parallel.B. PDB3 can use all available parallel execution processes at times.C. PDB1 is always limited to 40% of the av
Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.) A. All metrics are instance related.B. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.C. A space usage management alert is automatical
8、Examine the statements that use flashback technologies: FLASHBACK TABLE customers TO TIMESTAMP TO_TIMESTAMP(‘2013-02-04 09:30:00’, ‘YYYY-MM-DD HH:MI:SS’); SELECT * FROM customers AS OF SCN 123456; FLASHBACK TABLE customers TO BEFORE DROP; FLAS
9、choose two You accidentally drop the CUSTOMERS table, and then recover it by using the FLASHBACK TABLE command. Which two statements are true about the dependent objects of the CUSTOMERS table? A) All the triggers associated with the table are flashed
目录 示例 数据表 汇总表 代码 示例 如图所示，该表为某公司的销售数据。如何使用VBA按商品名汇总销售数量和收入？ 数据表 日期商品代码商品名数量收入2011/8/1701.0032ASWDVBN0.054273.52011/1/2801.0003ERTGH13589.742011/1/2901.0003ERTGH13846.152011/2/101.0004EFGTYUI113247
Oracle OCP 19c 认证1Z0-083考试题库(第10题)-CUUG整理 10、Choose three. Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx-preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? A.
Oracle OCP 19c 认证1Z0-083考试题库(第8题)-CUUG整理 8、Examine the statements that use flashback technologies: FLASHBACK TABLE customers TO TIMESTAMP TO_TIMESTAMP('2013-02-04 09:30:00', 'YYYY-MM-DD HH:MI:SS'); SELECT * FROM customers AS OF SCN
Oracle OCP 19c 认证1Z0-083考试题库(第6题)-CUUG整理 6、Which two are prerequisites for performing Flashback Transaction? A) Fast Recovery Area must be enabled for the database. B) The EXECUTE privilege must be granted to a user on the DBMS_FLASHBACK package. C)
Oracle OCP 19c 认证1Z0-083考试题库（第5题）-CUUG整理 5、Which three are true about requirements for various FLASHBACK operations? (Choose three.) A. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time
Oracle OCP 19c 认证1Z0-083考试题库（第4题）-CUUG整理 4、For which two requirements can you use the USER_TABLESPACE clause with the CREATE PLUGGABLE DATABASE command? (Choose two.) A. to specify a default tablespace in a PDB cloned from another PDB in the same CDB.
Oracle OCP 19c 认证1Z0-083考试题库（第2题）-CUUG内部学员版083题库 2、Choose three. In which three situations can you use threshold server-generated alerts to help diagnose and fix problems? A) when free space in a dictionary managed tablespace falls below a specif
Oracle OCP 19c 认证1Z0-083考试题库（第1题）-由CUUG整理 1.Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.) A. All metrics are instance related. B. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY. C. A
