Which four are correct guidelines for naming database tables?（）
- A、Must begin with either a number or a letter.
- B、Must be 1-30 characters long.
- C、Should not be an Oracle Server reserved word.
- D、Must contain only A-Z, a-z, 0-+, _, *, and #.
- E、Must contain only A-Z, a-z, 0-9, _, $, and #.
- F、Must begin with a letter.
正确答案:B,C,E,F
答案解析:有
微信扫一扫手机做题