employee_id	first_name	last_name	email	phone_number	hire_date	job_id	salary	commission_pct	manager_id	department_id
100	Steven	King	SKING	515.123.4567	6/17/1987	AD_PRES	24000			90
101	Neena	Kochhar	NKOCHHAR	515.123.4568	9/21/1989	AD_VP	17000		100	90
102	Lex	De Haan	LDEHAAN	515.123.4569	1/13/1993	AD_VP	17000		100	90
103	Alexander	Hunold	AHUNOLD	590.423.4567	1/3/1990	IT_PROG	9000		102	60
104	Bruce	Ernst	BERNST	590.423.4568	5/21/1991	IT_PROG	6000		103	60
105	David	Austin	DAUSTIN	590.423.4569	6/25/1997	IT_PROG	4800		103	60
106	Valli	Pataballa	VPATABAL	590.423.4560	2/5/1998	IT_PROG	4800		103	60
107	Diana	Lorentz	DLORENTZ	590.423.5567	2/7/1999	IT_PROG	4200		103	60
108	Nancy	Greenberg	NGREENBE	515.124.4569	8/17/1994	FI_MGR	12000		101	100
109	Daniel	Faviet	DFAVIET	515.124.4169	8/16/1994	FI_ACCOUNT	9000		108	100
110	John	Chen	JCHEN	515.124.4269	9/28/1997	FI_ACCOUNT	8200		108	100
111	Ismael	Sciarra	ISCIARRA	515.124.4369	9/30/1997	FI_ACCOUNT	7700		108	100
112	Jose Manuel	Urman	JMURMAN	515.124.4469	3/7/1998	FI_ACCOUNT	7800		108	100
113	Luis	Popp	LPOPP	515.124.4567	12/7/1999	FI_ACCOUNT	6900		108	100
114	Den	Raphaely	DRAPHEAL	515.127.4561	12/7/1994	PU_MAN	11000		100	30
115	Alexander	Khoo	AKHOO	515.127.4562	5/18/1995	PU_CLERK	3100		114	30
116	Shelli	Baida	SBAIDA	515.127.4563	12/24/1997	PU_CLERK	2900		114	30
117	Sigal	Tobias	STOBIAS	515.127.4564	7/24/1997	PU_CLERK	2800		114	30
118	Guy	Himuro	GHIMURO	515.127.4565	11/15/1998	PU_CLERK	2600		114	30
119	Karen	Colmenares	KCOLMENA	515.127.4566	8/10/1999	PU_CLERK	2500		114	30
120	Matthew	Weiss	MWEISS	650.123.1234	7/18/1996	ST_MAN	8000		100	50
121	Adam	Fripp	AFRIPP	650.123.2234	4/10/1997	ST_MAN	8200		100	50
122	Payam	Kaufling	PKAUFLIN	650.123.3234	5/1/1995	ST_MAN	7900		100	50
123	Shanta	Vollman	SVOLLMAN	650.123.4234	10/10/1997	ST_MAN	6500		100	50
124	Kevin	Mourgos	KMOURGOS	650.123.5234	11/16/1999	ST_MAN	5800		100	50
125	Julia	Nayer	JNAYER	650.124.1214	7/16/1997	ST_CLERK	3200		120	50
126	Irene	Mikkilineni	IMIKKILI	650.124.1224	9/28/1998	ST_CLERK	2700		120	50
127	James	Landry	JLANDRY	650.124.1334	1/14/1999	ST_CLERK	2400		120	50
128	Steven	Markle	SMARKLE	650.124.1434	3/8/2000	ST_CLERK	2200		120	50
129	Laura	Bissot	LBISSOT	650.124.5234	8/20/1997	ST_CLERK	3300		121	50
130	Mozhe	Atkinson	MATKINSO	650.124.6234	10/30/1997	ST_CLERK	2800		121	50
131	James	Marlow	JAMRLOW	650.124.7234	2/16/1997	ST_CLERK	2500		121	50
132	TJ	Olson	TJOLSON	650.124.8234	4/10/1999	ST_CLERK	2100		121	50
133	Jason	Mallin	JMALLIN	650.127.1934	6/14/1996	ST_CLERK	3300		122	50
134	Michael	Rogers	MROGERS	650.127.1834	8/26/1998	ST_CLERK	2900		122	50
135	Ki	Gee	KGEE	650.127.1734	12/12/1999	ST_CLERK	2400		122	50
136	Hazel	Philtanker	HPHILTAN	650.127.1634	2/6/2000	ST_CLERK	2200		122	50
137	Renske	Ladwig	RLADWIG	650.121.1234	7/14/1995	ST_CLERK	3600		123	50
138	Stephen	Stiles	SSTILES	650.121.2034	10/26/1997	ST_CLERK	3200		123	50
139	John	Seo	JSEO	650.121.2019	2/12/1998	ST_CLERK	2700		123	50
140	Joshua	Patel	JPATEL	650.121.1834	4/6/1998	ST_CLERK	2500		123	50
141	Trenna	Rajs	TRAJS	650.121.8009	10/17/1995	ST_CLERK	3500		124	50
142	Curtis	Davies	CDAVIES	650.121.2994	1/29/1997	ST_CLERK	3100		124	50
143	Randall	Matos	RMATOS	650.121.2874	3/15/1998	ST_CLERK	2600		124	50
144	Peter	Vargas	PVARGAS	650.121.2004	7/9/1998	ST_CLERK	2500		124	50
145	John	Russell	JRUSSEL	011.44.1344.429268	10/1/1996	SA_MAN	14000	0.4	100	80
146	Karen	Partners	KPARTNER	011.44.1344.467268	1/5/1997	SA_MAN	13500	0.3	100	80
147	Alberto	Errazuriz	AERRAZUR	011.44.1344.429278	3/10/1997	SA_MAN	12000	0.3	100	80
148	Gerald	Cambrault	GCAMBRAU	011.44.1344.619268	10/15/1999	SA_MAN	11000	0.3	100	80
149	Eleni	Zlotkey	EZLOTKEY	011.44.1344.429018	1/29/2000	SA_MAN	10500	0.2	100	80
150	Peter	Tucker	PTUCKER	011.44.1344.129268	1/30/1997	SA_REP	10000	0.3	145	80
151	David	Bernstein	DBERNSTE	011.44.1344.345268	3/24/1997	SA_REP	9500	0.25	145	80
152	Peter	Hall	PHALL	011.44.1344.478968	8/20/1997	SA_REP	9000	0.25	145	80
153	Christopher	Olsen	COLSEN	011.44.1344.498718	3/30/1998	SA_REP	8000	0.2	145	80
154	Nanette	Cambrault	NCAMBRAU	011.44.1344.987668	12/9/1998	SA_REP	7500	0.2	145	80
155	Oliver	Tuvault	OTUVAULT	011.44.1344.486508	11/23/1999	SA_REP	7000	0.15	145	80
156	Janette	King	JKING	011.44.1345.429268	1/30/1996	SA_REP	10000	0.35	146	80
157	Patrick	Sully	PSULLY	011.44.1345.929268	3/4/1996	SA_REP	9500	0.35	146	80
158	Allan	McEwen	AMCEWEN	011.44.1345.829268	8/1/1996	SA_REP	9000	0.35	146	80
159	Lindsey	Smith	LSMITH	011.44.1345.729268	3/10/1997	SA_REP	8000	0.3	146	80
160	Louise	Doran	LDORAN	011.44.1345.629268	12/15/1997	SA_REP	7500	0.3	146	80
161	Sarath	Sewall	SSEWALL	011.44.1345.529268	11/3/1998	SA_REP	7000	0.25	146	80
162	Clara	Vishney	CVISHNEY	011.44.1346.129268	11/11/1997	SA_REP	10500	0.25	147	80
163	Danielle	Greene	DGREENE	011.44.1346.229268	3/19/1999	SA_REP	9500	0.15	147	80
164	Mattea	Marvins	MMARVINS	011.44.1346.329268	1/24/2000	SA_REP	7200	0.1	147	80
165	David	Lee	DLEE	011.44.1346.529268	2/23/2000	SA_REP	6800	0.1	147	80
166	Sundar	Ande	SANDE	011.44.1346.629268	3/24/2000	SA_REP	6400	0.1	147	80
167	Amit	Banda	ABANDA	011.44.1346.729268	4/21/2000	SA_REP	6200	0.1	147	80
168	Lisa	Ozer	LOZER	011.44.1343.929268	3/11/1997	SA_REP	11500	0.25	148	80
169	Harrison	Bloom	HBLOOM	011.44.1343.829268	3/23/1998	SA_REP	10000	0.2	148	80
170	Tayler	Fox	TFOX	011.44.1343.729268	1/24/1998	SA_REP	9600	0.2	148	80
171	William	Smith	WSMITH	011.44.1343.629268	2/23/1999	SA_REP	7400	0.15	148	80
172	Elizabeth	Bates	EBATES	011.44.1343.529268	3/24/1999	SA_REP	7300	0.15	148	80
173	Sundita	Kumar	SKUMAR	011.44.1343.329268	4/21/2000	SA_REP	6100	0.1	148	80
174	Ellen	Abel	EABEL	011.44.1644.429267	5/11/1996	SA_REP	11000	0.3	149	80
175	Alyssa	Hutton	AHUTTON	011.44.1644.429266	3/19/1997	SA_REP	8800	0.25	149	80
176	Jonathon	Taylor	JTAYLOR	011.44.1644.429265	3/24/1998	SA_REP	8600	0.2	149	80
177	Jack	Livingston	JLIVINGS	011.44.1644.429264	4/23/1998	SA_REP	8400	0.2	149	80
178	Kimberely	Grant	KGRANT	011.44.1644.429263	5/24/1999	SA_REP	7000	0.15	149
179	Charles	Johnson	CJOHNSON	011.44.1644.429262	1/4/2000	SA_REP	6200	0.1	149	80
180	Winston	Taylor	WTAYLOR	650.507.9876	1/24/1998	SH_CLERK	3200		120	50
181	Jean	Fleaur	JFLEAUR	650.507.9877	2/23/1998	SH_CLERK	3100		120	50
182	Martha	Sullivan	MSULLIVA	650.507.9878	6/21/1999	SH_CLERK	2500		120	50
183	Girard	Geoni	GGEONI	650.507.9879	2/3/2000	SH_CLERK	2800		120	50
184	Nandita	Sarchand	NSARCHAN	650.509.1876	1/27/1996	SH_CLERK	4200		121	50
185	Alexis	Bull	ABULL	650.509.2876	2/20/1997	SH_CLERK	4100		121	50
186	Julia	Dellinger	JDELLING	650.509.3876	6/24/1998	SH_CLERK	3400		121	50
187	Anthony	Cabrio	ACABRIO	650.509.4876	2/7/1999	SH_CLERK	3000		121	50
188	Kelly	Chung	KCHUNG	650.505.1876	6/14/1997	SH_CLERK	3800		122	50
189	Jennifer	Dilly	JDILLY	650.505.2876	8/13/1997	SH_CLERK	3600		122	50
190	Timothy	Gates	TGATES	650.505.3876	7/11/1998	SH_CLERK	2900		122	50
191	Randall	Perkins	RPERKINS	650.505.4876	12/19/1999	SH_CLERK	2500		122	50
192	Sarah	Bell	SBELL	650.501.1876	2/4/1996	SH_CLERK	4000		123	50
193	Britney	Everett	BEVERETT	650.501.2876	3/3/1997	SH_CLERK	3900		123	50
194	Samuel	McCain	SMCCAIN	650.501.3876	7/1/1998	SH_CLERK	3200		123	50
195	Vance	Jones	VJONES	650.501.4876	3/17/1999	SH_CLERK	2800		123	50
196	Alana	Walsh	AWALSH	650.507.9811	4/24/1998	SH_CLERK	3100		124	50
197	Kevin	Feeney	KFEENEY	650.507.9822	5/23/1998	SH_CLERK	3000		124	50
198	Donald	OConnell	DOCONNEL	650.507.9833	6/21/1999	SH_CLERK	2600		124	50
199	Douglas	Grant	DGRANT	650.507.9844	1/13/2000	SH_CLERK	2600		124	50
200	Jennifer	Whalen	JWHALEN	515.123.4444	9/17/1987	AD_ASST	4400		101	10
201	Michael	Hartstein	MHARTSTE	515.123.5555	2/17/1996	MK_MAN	13000		100	20
202	Pat	Fay	PFAY	603.123.6666	8/17/1997	MK_REP	6000		201	20
203	Susan	Mavris	SMAVRIS	515.123.7777	6/7/1994	HR_REP	6500		101	40
204	Hermann	Baer	HBAER	515.123.8888	6/7/1994	PR_REP	10000		101	70
205	Shelley	Higgins	SHIGGINS	515.123.8080	6/7/1994	AC_MGR	12000		101	110
206	William	Gietz	WGIETZ	515.123.8181	6/7/1994	AC_ACCOUNT	8300		205	110

基本的SELECT语句

SELECT...

SELECT 1; #没有任何子句
SELECT 9/2; #没有任何子句

SELECT 1 + 1,3 * 2
FROM DUAL; #dual：伪表

结果

SELECT ... FROM

语法

# SELECT 字段1,字段2,... FROM 表名 
SELECT  标识选择哪些列
FROM   标识从哪个表中选择

08MySQL基本的Select语句

employees表

基本的SELECT语句

SELECT...

结果

SELECT ... FROM

语法

列的别名

去除重复行

空值参与运算

着重号 ``

查询常数

显示表结构

过滤数据 where

练习：