Oracle數據庫安裝的時候會自帶一個練習用數據庫（其中包含employee表，后來版本中此表改名為emp）；?

首先在安裝過程中應該有個選項“是否安裝實例表”（完全安裝模式下默認是選擇的），需要選擇才有此表；?

此表歸屬于scott賬戶，scott用戶默認口令為tiger?
如果發(fā)現scott賬戶已過期（Oracle 10g中經常發(fā)生），或口令不正確，可以通過以下方法進行設置?

Sql代碼??--賬戶解鎖?? alter?user?scott?account?unlock;?? --重設scott賬戶口令為tiger?? alter?user?scott?identified?by?tiger;??

附:實例表建表語句（適用于Oracle）?
Sql代碼??----------------------demobld.sql?begin-----------------------?? --?? --?Copyright?(c)?Oracle?Corporation?1988,?2000.?All?Rights?Reserved.?? --?? --?NAME?? --?demobld.sql?? --?? --?DESCRIPTION?? --?This?script.?creates?the?SQL*Plus?demonstration?tables?in?the?? --?current?schema.?It?should?be?STARTed?by?each?user?wishing?to?? --?access?the?tables.?To?remove?the?tables?use?the?demodrop.sql?? --?script.?? --?? --?USAGE?? --?From?within?SQL*Plus,?enter:?? --?START?demobld.sql?? ?? SET?TERMOUT?ON?? PROMPT?Building?demonstration?tables.?Please?wait.?? SET?TERMOUT?OFF?? ?? DROP?TABLE?EMP;?? DROP?TABLE?DEPT;?? DROP?TABLE?BONUS;?? DROP?TABLE?SALGRADE;?? DROP?TABLE?DUMMY;?? ?? CREATE?TABLE?EMP?? (EMPNO?NUMBER(4)?NOT?NULL,?? ENAME?VARCHAR2(10),?? JOB?VARCHAR2(9),?? MGR?NUMBER(4),?? HIREDATE?DATE,?? SAL?NUMBER(7,?2),?? COMM?NUMBER(7,?2),?? DEPTNO?NUMBER(2));?? ?? INSERT?INTO?EMP?VALUES?? (7369,?'SMITH',?'CLERK',?7902,?? TO_DATE('17-DEC-1980',?'DD-MON-YYYY'),?800,?NULL,?20);?? INSERT?INTO?EMP?VALUES?? (7499,?'ALLEN',?'SALESMAN',?7698,?? TO_DATE('20-FEB-1981',?'DD-MON-YYYY'),?1600,?300,?30);?? INSERT?INTO?EMP?VALUES?? (7521,?'WARD',?'SALESMAN',?7698,?? TO_DATE('22-FEB-1981',?'DD-MON-YYYY'),?1250,?500,?30);?? INSERT?INTO?EMP?VALUES?? (7566,?'JONES',?'MANAGER',?7839,?? TO_DATE('2-APR-1981',?'DD-MON-YYYY'),?2975,?NULL,?20);?? INSERT?INTO?EMP?VALUES?? (7654,?'MARTIN',?'SALESMAN',?7698,?? TO_DATE('28-SEP-1981',?'DD-MON-YYYY'),?1250,?1400,?30);?? INSERT?INTO?EMP?VALUES?? (7698,?'BLAKE',?'MANAGER',?7839,?? TO_DATE('1-MAY-1981',?'DD-MON-YYYY'),?2850,?NULL,?30);?? INSERT?INTO?EMP?VALUES?? (7782,?'CLARK',?'MANAGER',?7839,?? TO_DATE('9-JUN-1981',?'DD-MON-YYYY'),?2450,?NULL,?10);?? INSERT?INTO?EMP?VALUES?? (7788,?'SCOTT',?'ANALYST',?7566,?? TO_DATE('09-DEC-1982',?'DD-MON-YYYY'),?3000,?NULL,?20);?? INSERT?INTO?EMP?VALUES?? (7839,?'KING',?'PRESIDENT',?NULL,?? TO_DATE('17-NOV-1981',?'DD-MON-YYYY'),?5000,?NULL,?10);?? INSERT?INTO?EMP?VALUES?? (7844,?'TURNER',?'SALESMAN',?7698,?? TO_DATE('8-SEP-1981',?'DD-MON-YYYY'),?1500,?0,?30);?? INSERT?INTO?EMP?VALUES?? (7876,?'ADAMS',?'CLERK',?7788,?? TO_DATE('12-JAN-1983',?'DD-MON-YYYY'),?1100,?NULL,?20);?? INSERT?INTO?EMP?VALUES?? (7900,?'JAMES',?'CLERK',?7698,?? TO_DATE('3-DEC-1981',?'DD-MON-YYYY'),?950,?NULL,?30);?? INSERT?INTO?EMP?VALUES?? (7902,?'FORD',?'ANALYST',?7566,?? TO_DATE('3-DEC-1981',?'DD-MON-YYYY'),?3000,?NULL,?20);?? INSERT?INTO?EMP?VALUES?? (7934,?'MILLER',?'CLERK',?7782,?? TO_DATE('23-JAN-1982',?'DD-MON-YYYY'),?1300,?NULL,?10);?? ?? CREATE?TABLE?DEPT?? (DEPTNO?NUMBER(2),?? DNAME?VARCHAR2(14),?? LOC?VARCHAR2(13)?);?? ?? INSERT?INTO?DEPT?VALUES?(10,?'ACCOUNTING',?'NEW?YORK');?? INSERT?INTO?DEPT?VALUES?(20,?'RESEARCH',?'DALLAS');?? INSERT?INTO?DEPT?VALUES?(30,?'SALES',?'CHICAGO');?? INSERT?INTO?DEPT?VALUES?(40,?'OPERATIONS',?'BOSTON');?? ?? CREATE?TABLE?BONUS?? (ENAME?VARCHAR2(10),?? JOB?VARCHAR2(9),?? SAL?NUMBER,?? COMM?NUMBER);?? ?? CREATE?TABLE?SALGRADE?? (GRADE?NUMBER,?? LOSAL?NUMBER,?? HISAL?NUMBER);?? ?? INSERT?INTO?SALGRADE?VALUES?(1,?700,?1200);?? INSERT?INTO?SALGRADE?VALUES?(2,?1201,?1400);?? INSERT?INTO?SALGRADE?VALUES?(3,?1401,?2000);?? INSERT?INTO?SALGRADE?VALUES?(4,?2001,?3000);?? INSERT?INTO?SALGRADE?VALUES?(5,?3001,?9999);?? ?? CREATE?TABLE?DUMMY?? (DUMMY?NUMBER);?? ?? INSERT?INTO?DUMMY?VALUES?(0);?? ?? COMMIT;?? ?? SET?TERMOUT?ON?? PROMPT?Demonstration?table?build?is?complete.?? ?? EXIT?? -------------------demobld.sql?end-----------------------??

實例建表語句（適用于MySQL）?
Sql代碼??DROP?TABLE?employee;?? DROP?TABLE?dept;?? DROP?TABLE?bonus;?? DROP?TABLE?salgrade;?? DROP?TABLE?dummy;?? ?? CREATE?TABLE?employee?? (?? ??employeeno?DECIMAL(4)?NOT?NULL,?? ??ename?VARCHAR(10),?? ??job?VARCHAR(9),?? ??mgr?DECIMAL(4),?? ??hiredate?DATE,?? ??sal?DECIMAL(7,?2),?? ??comm?DECIMAL(7,?2),?? ??deptno?DECIMAL(2)?? );?? ?? INSERT?INTO?employee?VALUES?? (7369,?'SMITH',?'CLERK',?7902,?'1980-12-17',?800,?NULL,?20);?? INSERT?INTO?employee?VALUES?? (7499,?'ALLEN',?'SALESMAN',?7698,'1981-2-20',?1600,?300,?30);?? INSERT?INTO?employee?VALUES?? (7521,?'WARD',?'SALESMAN',?7698,?'1981-2-22',?1250,?500,?30);?? INSERT?INTO?employee?VALUES?? (7566,?'JONES',?'MANAGER',?7839,?'1981-4-2',?2975,?NULL,?20);?? INSERT?INTO?employee?VALUES?? (7654,?'MARTIN',?'SALESMAN',?7698,?'1981-9-28',?1250,?1400,?30);?? INSERT?INTO?employee?VALUES?? (7698,?'BLAKE',?'MANAGER',?7839,?'1981-5-1',?2850,?NULL,?30);?? INSERT?INTO?employee?VALUES?? (7782,?'CLARK',?'MANAGER',?7839,?'1981-7-9',?2450,?NULL,?10);?? INSERT?INTO?employee?VALUES?? (7788,?'SCOTT',?'ANALYST',?7566,?'1982-12-9',?3000,?NULL,?20);?? INSERT?INTO?employee?VALUES?? (7839,?'KING',?'PRESIDENT',?NULL,?'1981-11-17',?5000,?NULL,?10);?? INSERT?INTO?employee?VALUES?? (7844,?'TURNER',?'SALESMAN',?7698,?'1981-9-8',?1500,?0,?30);?? INSERT?INTO?employee?VALUES?? (7876,?'ADAMS',?'CLERK',?7788,?'1983-1-12',?1100,?NULL,?20);?? INSERT?INTO?employee?VALUES?? (7900,?'JAMES',?'CLERK',?7698,?'1981-12-3',?950,?NULL,?30);?? INSERT?INTO?employee?VALUES?? (7902,?'FORD',?'ANALYST',?7566,?'1981-12-3',?3000,?NULL,?20);?? INSERT?INTO?employee?VALUES?? (7934,?'MILLER',?'CLERK',?7782,?'1982-1-23',?1300,?NULL,?10);?? ?? CREATE?TABLE?dept?? (deptno?DECIMAL(2),?? dname?VARCHAR(14),?? loc?VARCHAR(13)?);?? ?? INSERT?INTO?dept?VALUES?(10,?'ACCOUNTING',?'NEW?YORK');?? INSERT?INTO?dept?VALUES?(20,?'RESEARCH',?'DALLAS');?? INSERT?INTO?dept?VALUES?(30,?'SALES',?'CHICAGO');?? INSERT?INTO?dept?VALUES?(40,?'OPERATIONS',?'BOSTON');?? ?? CREATE?TABLE?bonus?? (ename?VARCHAR(10),?? job?VARCHAR(9),?? sal?DECIMAL,?? comm?DECIMAL);?? ?? CREATE?TABLE?salgrade?? (grade?DECIMAL,?? losal?DECIMAL,?? hisal?DECIMAL);?? ?? INSERT?INTO?salgrade?VALUES?(1,?700,?1200);?? INSERT?INTO?salgrade?VALUES?(2,?1201,?1400);?? INSERT?INTO?salgrade?VALUES?(3,?1401,?2000);?? INSERT?INTO?salgrade?VALUES?(4,?2001,?3000);?? INSERT?INTO?salgrade?VALUES?(5,?3001,?9999);?? ?? CREATE?TABLE?dummy?? (dummy?DECIMAL);?? ?? INSERT?INTO?dummy?VALUES?(0); ?