本文介绍了使用SQL的正则表达式功能进行模式匹配的方法，包括以特定字符开头或结尾的字符串查询，以及复杂的字符串模式匹配技巧。
select f_name from fruits where f_name regexp '^a';
select f_name from fruits where f_name regexp 'y$';
select f_name from fruits where f_name regexp '^b.{3}y$';
select f_name from fruits where f_name regexp 'a{1}';
select f_name from fruits where f_name regexp '(ba){1,3}';
select f_name from fruits where f_name regexp 'a|b';
select f_name from fruits where f_name regexp '[ac]';
select f_name from fruits where f_name regexp 'y$';
select f_name from fruits where f_name regexp '^b.{3}y$';
select f_name from fruits where f_name regexp 'a{1}';
select f_name from fruits where f_name regexp '(ba){1,3}';
select f_name from fruits where f_name regexp 'a|b';
select f_name from fruits where f_name regexp '[ac]';
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