总结：SQL-反向-模糊查询-Demo
SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE()) AND table_name
NOT IN (SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE()) AND table_name LIKE "%copy%" OR table_name LIKE "%bak%")
解析1：该 SQL查 所有 当前操作数据库的 表名
SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE())
解析2： 该 SQL模糊查询（包含“copy”，以及 包含“bak”）的表名
SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE()) AND table_name LIKE "%copy%" OR table_name LIKE "%bak%"
解析3： 该 SQL结合解析1和解析2的SQL，意思是，查所有表名，但不包含（NOT IN（解析2））解析2中的模糊查询结果集（子查询）
SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE()) AND table_name
NOT IN (SELECT table_name FROM information_schema.tables WHERE TABLE_SCHEMA=(SELECT DATABASE()) AND table_name LIKE "%copy%" OR table_name LIKE "%bak%")
