如何使用MySQL提取所有单词后带有大写字母名称的所有数据库？
为此，请使用正则表达式。语法如下-
select * from information_schema.schemata WHERE SCHEMA_NAME REGEXP '^yourValue_+[A-Z]';
让我们创建一些数据库-
mysql> create database bank_APP1; mysql> create database bank_APP2; mysql> create database bank_APP3;
这是获取所有数据库在某个单词后具有大写字母字符的查询-
mysql> select * from information_schema.schemata WHERE SCHEMA_NAME REGEXP '^bank_+[A-Z]';
这将产生以下输出-
+--------------+-------------+----------------------------+------------------------+----------+ | CATALOG_NAME | SCHEMA_NAME | DEFAULT_CHARACTER_SET_NAME | DEFAULT_COLLATION_NAME | SQL_PATH | +--------------+-------------+----------------------------+------------------------+----------+ | def | bank_app1 | utf8 | utf8_unicode_ci | NULL | | def | bank_app2 | utf8 | utf8_unicode_ci | NULL | | def | bank_app3 | utf8 | utf8_unicode_ci | NULL | +--------------+-------------+----------------------------+------------------------+----------+ 3 rows in set (0.00 sec)