prompt
prompt 创建accounts表
create table accounts
(
    account_number number primary key,
    account_balance number 
);
/

prompt 
prompt 插入数据到accounts表中
begin 
    insert into accounts (account_number,account_balance) values (123,500.00);
    insert into accounts (account_number,account_balance) values (234,250.00);
    insert into accounts (account_number,account_balance) values (345,400.00);
    insert into accounts (account_number,account_balance) values (456,100.00);
end;
/
