Given: And the following five fragments: public static void main(String...a) { public static void main(String.* a) { public static void main(String... a) { public static void main(String[]... a) { public static void main(String...[] a) { How many of the code fragments, inserted independently at line 2, compile?() 0。 1。 2。 3。 4。
Examine the command: ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS; What does the command accomplish?() Creates an additional copy of the database online redo log files. 。 Stores the primary key column values of each row involved in a DML operation in the online redo log files. 。 Stores the primary key column values of each row involved in a DML operation in the supplemental log files. 。 Stores the old and new primary key column values of each row involved in a DML operation only when the primary key is modified in the online redo log files.。
外来化合物
党的基本路线的核心是() 以经济建设为中心。 坚持改革开放。 坚持走社会主义道路。 坚持四项基本原则。
在一个组织内或在同一组织层次上只能采用一种部门划分方法。
基坑工程施工现场监测的内容分为围护结构本身和相邻环境。其中相邻环境包括()。