You need to serialize an object of ty

1、You need to calculate the total of all

You need to calculate the total of all salaries in the accounting department. Which group function should you use? （）A MAXB MINC SUMD COUNTE TOTALF LARGEST

2、You want to perform an RMAN backup of

You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?（） (Choose...

3、You need to display the last names of

You need to display the last names of those employees who have the letter "A" as the second character in their names. Which SQL statement di...

4、You need to serialize&

You need to serialize an object of type List in a binary format. The object is named data.Which code segment should you use？（）AABBCCDD

5、What kind of knowledge do you need to

What kind of knowledge do you need to have if you say you know a word?

6、You need to change the definition of a

You need to change the definition of an existing table. The COMMERCIALS table needs its DESCRIPTION column changed to hold varying length chara...