Oracle Bank Access Money System

Oracle Bank Access Money System

/* Banking system Requirements: 1, create a User Information table (userinfo), a trading information table (deal) 2, User Information tables field: User number, user name, password, balance Transaction information table field: Number, transaction amount, transaction type, user number 3, establish the relationship between two tables  4, all numbers are added in sequence, sequence name: USERINFO_SQ,DEAL_SQ 5, add 4 user information, content customization 6, through Plsql programming to realize the console saving and withdraw money operation, require the console prompt operation mode, such as: 1, take money 2, save, 3 check the balance Note: The access money operation can be performed more than once. */--Creating a user information table, Transaction Information table CREATE TABLE UserInfo (u_id number, user ID u_name varchar2 (20),--User name u_pwd varchar2,--Password U_mone Y number--the balance); Create table Deal (d_id number,----numbered D_money,--Transaction amount D_type varchar2 (), u_id numbers);--Add relationship Alt ER table USERINFO add constraint U_PK primary KEY (u_id) ALTER TABLE DEAL add constraint U_D_FK foreign key (U_ID) refer     Ences USERINFO (u_id); --Add sequence Create sequence Userinfo_sqminvalue 1maxvalue 9999999999999999999999999999start with 1increment by 1cache 20; Create sequence Deal_sqminvalue 1maxvalue 9999999999999999999999999999start with 1increment by 1cache 20;--Add user information Insert Into UserInfo (U_id,u_name,u_pwd,u_money) VALUES (userinfo_sq.nextval, ' Wang Choi ', ' 123 ', +); insert into UserInfo (u_id,u_name,u_pwd,u_money) VALUES (userinfo_sq.nextval, ' Wang Wang ', ' 123 ', 1); insert into UserInfo (U_id,u_name,u_pwd,u_money) VALUES (userinfo_sq.nextval, ' Awang ', ' 123 '), insert into userinfo (U_id,u_name,u_pwd,u_money) VALUES (userinfo_  Sq.nextval, ' Xiao Wang ', ' 123 ', ' n '); Select *from Userinfo;--plsql Programming Declare--Define a variable to hold the user operation input number;  Money number;  Usid number;begin usid:= ' & Current User ID ';  Input:= ' &1 take money, 2 deposit, 3 check balance ';    --Determine the type of operation if Input=1 then money:= ' & withdraw the amount of money ';    Update userinfo set U_money=u_money-money where U_id=usid;    --Save the transaction information to the Trading information table insert into deal (d_id,d_money,d_type,u_id) VALUES (Deal_sq.nextval,money, ' withdrawals ', usid);  End If;    If input=2 then money:= ' & Deposit amount ';    Update userinfo set U_money=u_money+money where U_id=usid;    INSERT into Deal (d_id,d_money,d_type,u_id) VALUES (Deal_sq.nextval,money, ' storage ', usid);  End If;    If input=3 then select U_money to Money from UserInfo where u_id=usid; Dbms_output.put_line (' Current user balance: ' | |    Money);  End If; End

　　

Oracle Bank Access Money System