与HZY3质量相当的汽车制动液有()。
A:J1702f(美国标准) B:JG5 C:DOT3(美国运输部标准) D:T8E
将Student.dbf表中jg字段的名称改为籍贯,如下选项中正确的SQL语句是
A:ALTER TABLE student ALTER COLUMN jg TO籍贯 B:ALTER TABLE student ADD 籍贯 C(10) C:ALTER TABLE student RENAME jg TO 籍贯 D:ALTER TABLE student RENAME jg 籍贯
将Student.dbf表中jg字段的名称改为籍贯,如下选项中正确的SQL语句是
A:ALTER TABLE student ALTER COLUMN jg TO籍贯 B:ALTER TABLE student ADD 籍贯 C(10) C:ALTER TABLE student RENAME jg TO 籍贯 D:ALTER TABLE student RENAME jg 籍贯
将Student.dbf表中jg字段的名称改为籍贯,如下选项中正确的SQL语句是
A:ALTER TABLE student ALTER COLUMN jg TO籍贯 B:ALTER TABLE student ADD籍贯C(10) C:ALTER TABLE student RENAME jg TO籍贯 D:ALTER TABLE student RENAME jg 籍贯
将Student. dbf表中jg字段的名称改为籍贯,如下选项中正确的SQL语句是( )。
A:ALTER TABLE student ALTER COLUMN jg TO 籍贯 B:ALTER TABLE student ADD 籍贯 C(10) C:ALTER TABLE student RENAME jg TO 籍贯 D:ALTER TABLE student RENAME jg 籍贯
将Student.dbf表中jg字段的名称改为籍贯,如下选项中正确的SQL语句是
A:ALTER TABLE student ALTER COLUMN jg TO籍贯 B:ALTER TABLE student ADD 籍贯 C(10) C:ALTER TABLE student RENAME jg TO 籍贯 D:ALTER TABLE student RENAME jg 籍贯