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 three are true? ()
多项选择题 Which two statements are true about constraints? ()
多项选择题 Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about the SQL statement? ()