26.4.4.1 create_synonym_db()过程
给定模式名称后,此过程将创建一个同义词模式,该模式包含引用原始模式中所有 table 和视图的视图。例如,可以使用它来创建一个短名称,通过该短名称来引用具有长名称的模式(例如info
而不是INFORMATION_SCHEMA
)。
Parameters
-
in_db_name VARCHAR(64)
:要为其创建同义词的架构的名称。 -
in_synonym VARCHAR(64)
:用于同义词模式的名称。此架构必须不存在。
Example
mysql> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| world |
+--------------------+
mysql> CALL sys.create_synonym_db('INFORMATION_SCHEMA', 'info');
+---------------------------------------+
| summary |
+---------------------------------------+
| Created 63 views in the info database |
+---------------------------------------+
mysql> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| info |
| mysql |
| performance_schema |
| sys |
| world |
+--------------------+
mysql> SHOW FULL TABLES FROM info;
+---------------------------------------+------------+
| Tables_in_info | Table_type |
+---------------------------------------+------------+
| character_sets | VIEW |
| collation_character_set_applicability | VIEW |
| collations | VIEW |
| column_privileges | VIEW |
| columns | VIEW |
...