如何检测MySQL中是否存在表？
要检测表的存在，请使用INFORMATION_SCHEMA.TABLES的概念。以下是语法-
select table_name from information_schema.tables where table_schema=database() and table_name=yourTableName;
要了解上述语法，让我们创建一个表-
mysql> create table DemoTable2032 -> ( -> ClientId int, -> ClientName varchar(20), -> ClientAge int, -> ClientCountryName varchar(20) -> );
这是检测数据库中是否存在表的查询-
mysql> select table_name from information_schema.tables -> where table_schema=database() -> and table_name='DemoTable2032';
这将产生以下输出-
+---------------+ | TABLE_NAME | +---------------+ | demotable2032 | +---------------+ 1 row in set (0.00 sec)