Interpreting Oracle

– Create tablespace
create tablespace waterboss
datafile ‘c:\waterboss.dbf’
size 100m
autoextend on
next 10m;

– Create user
create user wateruser
identified by itcast
default tablespace waterboss;

– to wateruser give DBA jurisdiction
grant dba to wateruser

– Create owner table
CREATE TABLE T_OWNERS(
ID NUMBER PRIMARY KEY,
NAME VARCHAR2(30),
ADDRESSID NUMBER,
HOUSENUMBER VARCHAR2(30),
WATERMETER VARCHAR2(30),
ADDDATE DATE,
OWNERTYPEID NUMBER
)

– Insert statement
insert into T_OWNERTYPE (ID,NAME) VALUES (1,‘ Resident ’);

insert into T_OWNERS VALUES (1,‘ Zhang Sanfeng ’,1,‘1-1’,‘123456’,sysdate,1 );
commit;
– Modify the statement
update T_OWNERS set adddate=adddate-3 where id=1;
commit;

– Delete statements
delete from T_OWNERS where id=1;
commit;

– Delete statements
truncate table T_OWNERTYPE