语法: 删表 DROP TABLE Syntax DROP [TEMPORARY] TABLE [IF EXISTS] tbl_name [, tbl_name] ... [RESTRICT | CASCADE] 可一次删除一张或多张表。需具有所删除表上的DROP权限。表定义文件和数据文件均被移除。
To remove existing tables, you use the MySQLDROP TABLEstatement. The syntax of theDROP TABLEis as follows: 1 2 DROP[TEMPORARY]TABLE[IF EXISTS]table_name[,table_name]... [RESTRICT|CASCADE] TheDROP TABLEstatement removes a table and its data permanently from the database. In MySQL, you can...
In order to remove existing tables, you use the MySQLDROP TABLEstatement. The syntax of theDROP TABLEis as follows: DROP [TEMPORARY] TABLE [IF EXISTS] table_name [, table_name] ... [RESTRICT | CASCADE] TheDROP TABLEstatement removes a table and its data permanently from the database. I...
/ DROP TABLE Statement 15.1.32 DROP TABLE Statement DROP [TEMPORARY] TABLE [IF EXISTS] tbl_name [, tbl_name] ... [RESTRICT | CASCADE] DROP TABLE removes one or more tables. You must have the DROP privilege for each table. Be careful with this statement! For each table, it removes...
MySQL TRUNCATE TABLE TheTRUNCATE TABLEstatement is used to delete the data inside a table, but not the table itself. Syntax TRUNCATETABLEtable_name; Exercise? Drag and drop the correct keywords to form a statement that deletes the 'Customers' table. ...
The UNDO keyword, introduced in MySQL 8.0.14, must be specified to drop an undo tablespace. Only undo tablespaces created using CREATE UNDO TABLESPACE syntax can be dropped. An undo tablespace must be in an empty state before it can be dropped. For more information, see Section 17.6.3.4, ...
mysqldropdatabase 很慢mysql中drop的用法 删表DROPTABLE SyntaxDROP[TEMPORARY] TABLE [IF EXISTS] tbl_name [, tbl_name] ... [RESTRICT | CASCADE] 可一次删除一张或多张表。需具有所删除表上的DROP权限。表定义文件和数据文件均被移除。表被删除后表上的用户权限不会被自动删除。参数里表中指定的表名不...
删表DROPTABLE SyntaxDROP[TEMPORARY] TABLE [IF EXISTS] tbl_name [, tbl_name] ... [RESTRICT | CASCADE] 可一次删除一张或多张表。需具有所删除表上的DROP权限。表定义文件和数据文件均被移除。表被删除后表上的用户权限不会被自动删除。参数里表中指定的表名不存在则报错,但对于存在的表仍会删除。可通...
You can also drop databases withmysqladmin. SeeSection 4.8. CREATE TABLESyntax CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options] [select_statement] create_definition: col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT] [PRIMAR...
mysql> alter table users character set GBK; Query OK, 3 rows affected (0.08 sec) Records: 3 Duplicates: 0 Warnings: 0 查看表的结构: mysql> show create users; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for ...