核心提示： sql server(WINDOWS平台上强大的数据库平台) Books Online上面搜索like,找到了包含%，_,[],[^]几个通配符，SQL Server中的模式匹配，如：select * from mybbs where Content like '[w]%&#

   
sql server(WINDOWS平台上强大的数据库平台) Books Online上面搜索like,找到了包含%，_,[],[^]几个通配符。
如：select * from mybbs where Content like '[w]%'
like关键字用于搜索匹配某个模式的字符串，或者日期，时间值。
sql server(WINDOWS平台上强大的数据库平台) Books中的部分解释如下：

Pattern Matching in Search Conditions

The LIKE keyword uses a regular expression to contain the pattern that the values are matched against. The pattern contains the character string to search for, which can contain any combination of four wildcards.

WildcardMeaning%Any string of zero or more characters._Any single character.[ ]Any single character within the specified range (for example, [a-f]) or set (for example, [abcdef]).[^]Any single character not within the specified range (for example, [^a - f]) or set (for example, [^abcdef]).

Enclose the wildcard(s) and the character string in single quotation marks, for example:

• LIKE '%en%' searches for all strings that contain the letters en anywhere in the string (Bennet, Green, McBadden).
  
• LIKE '_heryl' searches for all six-letter names ending with the letters heryl (Cheryl, Sheryl).
  
• LIKE '[CK]ars[eo]n' searches for Carsen, Karsen, Carson, and Karson (Carson).
  
• LIKE '[M-Z]inger' searches for all names ending with the letters inger that begin with any single letter from M through Z (Ringer).
  
• LIKE 'M[^c]%' searches for all names beginning with the letter M that do not have the letter c as the second letter (MacFeather).

This query finds all phone numbers in the authors table that have area code 415:

SELECT phoneFROM pubs.dbo.authorsWHERE phone LIKE '415%'