( )语句可实现增加表employee的列 NAME 的长度到 25 ?
ALTER TABLE employee MODIFY name VARCHAR2(25);
ALTER TABLE employee RENAME name VARCHAR2(25);
ALTER employee TABLE MODIFY COLUMN name VARCHAR2(25);
ALTER employee TABLE MODIFY COLUMN (name VARCHAR2(25));
( )语句可实现增加表employee的列 NAME 的长度到 25 ?
ALTER TABLE employee MODIFY name VARCHAR2(25);
ALTER TABLE employee RENAME name VARCHAR2(25);
ALTER employee TABLE MODIFY COLUMN name VARCHAR2(25);
ALTER employee TABLE MODIFY COLUMN (name VARCHAR2(25));