ORA-00906:缺少左括号

Question

create table widep(
 cac NUMBER,
 ddate DATE,
 dtime TIMESTAMP,
 type VARCHAR2,
 amount NUMBER(10,2),
 constraint qwe foreign key(cac) references cust(cac)
)

Answer 1

在完整的错误消息指出Error at CommandLine:5 Column:15这是这个位置:

type VARCHAR2,
            ^^^

VARCHAR2需要size参数来定义最大字符数.使用类似的东西

create table widep(
 cac NUMBER,
 ddate DATE,
 dtime TIMESTAMP,
 type VARCHAR2(100),
 amount NUMBER(10,2),
 constraint qwe foreign key(cac) references cust(cac)
);