单项选择题
Which is a valid CREATE TABLE statement?（）
A. CREATE TABLE EMP9$# AS (empid number(2)); B. CREATE TABLE EMP*123 AS (empid number(2)); C. CREATE TABLE PACKAGE AS (packid number(2)); D. CREATE TABLE 1EMP_TEST AS (empid number(2));
多项选择题 Which two are character manipulation functions?（）
多项选择题 Which three are true?（）
单项选择题 Evaluate this SQL statement: In the statement, which capabilities of a SELECT statement are performed?（）
