多选题

知识点：数据库 10/10（多选/必答） Which of the fol...

Question

知识点：数据库 10/10（多选/必答）
Which of the following statements is correct about stored procedures?

A. Input and output parameters are allowed in stored procedures.

B. Stored procedures can contain dml, ddl and dql or any other T-SQL statements.

C. A stored procedure can call another stored procedure or user defined function.

D. A stored procedure usually reduces the network traffic.