单项选择题
Evaluate the SQL statement: SELECT ROUND(45.953, -1), TRUNC(45.936, 2) FROM dual; Which values are displayed? （）
A. 46 and 45 B. 46 and 45.93 C. 50 and 45.93 D. 50 and 45.9 E. 45 and 45.93 F. 45.95 and 45.93
单项选择题 Which SQL statement accepts user input for the columns to be displayed, the table name, and WHERE condition? （）
多项选择题 Which two statements are true about WHERE and HAVING clauses? （）
多项选择题 Which two statements about creating constraints are true?（）
