like-2escape.sql

本程序中即有讲义

--Use the ESCAPE clause
--下例使用 ESCAPE 子句和转义符查找 mytbl2 表的 c1 列中的精确字符串 10-15%。



USE pubs
GO
IF EXISTS(SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
        WHERE TABLE_NAME = 'mytbl2')
    DROP TABLE mytbl2
GO

USE pubs
GO
CREATE TABLE mytbl2
(
 c1 sysname
)
GO

INSERT mytbl2 VALUES ('Discount is 10-15% off')
INSERT mytbl2 VALUES ('Discount is 10-15.5% off')
INSERT mytbl2 VALUES ('Discount is .10-.15 off')

GO

SELECT c1 
FROM mytbl2
WHERE c1 LIKE '%10-15!% off%' ESCAPE '!'
--WHERE c1 LIKE '%10-15*% off%' ESCAPE '*'
GO