Canyou______thefive-poundnote?(alter,change,modify,vary)
举一反三
- 91（） A: alter B: adapt C: modify D: vary
- You’ll have to ______ the height of the table to make it fit. A: vary B: modify C: change D: adapt
- 修改数据表中字段的名称用以下（ ）关键字 A: ALTER DATABASE B: ALTER TABLE CHANGE C: ALTER TABLE RENAME D: ALTER TABLE MODIFY
- 【多选题】能修改列的数据类型指令是 A. ALTER TABLE ... ALTER COLUMN B. ALTER TABLE ... MODIFY COLUMN... C. ALTER TABLE ... CHANGE COLUMN ... D. ALTER TABLE ... UPFATE
- 下列哪个命令不能修改stu中stuContact的字段类型为VARCHAR(11) A: ALTER TABLE stu CHANGE COLUMN stuContact VARCHAR(11); B: ALTER TABLE stu MODIFY COLUMN stuContact VARCHAR(11); C: ALTER TABLE stu ALTER stuContact VARCHAR(11); D: ALTER TABLE stu CHANGE stuContact VARCHAR(11);