SQL语句LIKE sql SQLServer SQL语句 LIKE语句 LIKE操作符

LIKE操作符

LIKE操作符用于在WHERE中搜索列中的指定模式。

SQL LIKE操作符语句

SELECT COLUMN_NAME(S) FROM TABLE_NAME WHERE COLUMN_NAME LIKE PATTERN

CAR表：

VIN
BRAND
MODEL
PRICE
PRODUCTION_YEAR
LJCPCBLCX14500264
Ford
Focus
8000
2005
WPOZZZ79ZTS372128
Ford
Fusion
10000
2008
JF1BR93D7BG498281
Toyota
Avensis
10000
1999
KLATF08Y1VB363636
Volkswagen
Golf
3000
1992
1M8GDM9AXKP042788
Volkswagen
Golf
10000
2010
1HGCM82633A004352
Volkswagen
Jetta
6000
2003
1G1YZ23J9P5800003
Fiat
Punto
6000
1999
GS723HDSAK2399002
Opel
Corsa
89000.00
2007
LP859CCSRH5555963
Toyota
Avensis
12000.00
2009
LP859CCSRH5555962
Opel
Punto
13000.00
2012

LIKE操作符实例

例子
我们希望从CAR表中选取去以L(VIN)开头的数据：
使用下面SQL语句
SELECT * FROM CAR WHERE VIN LIKE 'L%'
提示: “%”可用于定义通配符(模式中缺少的字母)
结果
VIN
BRAND
MODEL
PRICE
PRODUCTION_YEAR
LJCPCBLCX14500264
Ford
Focus
8000
2005
LP859CCSRH5555963
Toyota
Avensis
12000.00
2009
LP859CCSRH5555962
Opel
Punto
13000.00
2012
例子 2
我们希望从CAR表中选取出VIN以6结尾的数据
SELECT * FROM CAR WHERE VIN LIKE '%6'

结果

VIN
BRAND
MODEL
PRICE
PRODUCTION_YEAR
KLATF08Y1VB363636
Volkswagen
Golf
3000
1992
例子 3
我们希望从CAR表中选出包含VIN“36”的数据
SELECT * FROM CAR WHERE VIN LIKE '%36%'

结果

VIN
BRAND
MODEL
PRICE
PRODUCTION_YEAR
KLATF08Y1VB363636
Volkswagen
Golf
3000
1992
例子4
通过使用not关键字，我们可以从car表中选取不包含“36”的数据
第一种SQL语句:
SELECT * FROM CAR WHERE VIN NOT LIKE '%36'

第二种SQL语句:

SELECT * FROM CAR WHERE VIN NOT IN (SELECT VIN FROM CAR WHERE VIN LIKE '%36%')

第三种SQL语句:

SELECT * FROM CAR A WHERE NOT EXISTS (SELECT 1 FROM CAR B WHERE B.VIN LIKE '%36%' AND A.VIN=B.VIN )

结果:

VIN
BRAND
MODEL
PRICE
PRODUCTION_YEAR
LJCPCBLCX14500264
Ford
Focus
8000
2005
WPOZZZ79ZTS372128
Ford
Fusion
10000
2008
JF1BR93D7BG498281
Toyota
Avensis
10000
1999
1M8GDM9AXKP042788
Volkswagen
Golf
10000
2010
1HGCM82633A004352
Volkswagen
Jetta
6000
2003
1G1YZ23J9P5800003
Fiat
Punto
6000
1999
GS723HDSAK2399002
Opel
Corsa
89000.00
2007
LP859CCSRH5555963
Toyota
Avensis
12000.00
2009
LP859CCSRH5555962
Opel
Punto
13000.00
2012