百度试题 结果1 题目In SQL, the command to drop a table is ( ). A. remove table B. delete table C. clear table D. drop table 相关知识点: 试题来源: 解析 D 反馈 收藏
.create table command .create table based-on command .create tables command .create-merge table command .create-merge tables command .drop table command .rename table command .show tables command .undo drop table command .show table details command ...
DROP TABLE TableName | FileName | ? [RECYCLE] Property Values TableName Specifies the table to remove from the current database and delete from disk. FileName Specifies a free table to delete from disk. ? Displays the Remove dialog from which you can choose a table to remove from the cur...
To drop a tablespace in Postgres, execute the DROP TABLESPACE statement followed by the name of the tablespace to be discarded. In this blog, we got to know about dropping tablespace using practical examples. As we know the tablespace contains the database and tables. So we can not directly ...
Then drop the original table and rename the temp table to original tablename. 19 How to identify and remove bad 'child' records to enable / create a foreign key ("Parent Keys Not Found" error when you try to enable/create relation from child table to parent table!) The records can be...
table_name:The name of the table to be deleted. Examples of Using DROP TABLE in SQLite Example 1: Dropping a Table Code: -- Drop the table named 'students' from the database DROP TABLE students; Explanation: This command deletes the students table and all its data. If the table doesn...
Each command in views has a specified level. The device administrator can change a command privilege level as required so that a lower-level user can use certain high-level commands. The device administrator can also increase the command privilege level to a larger value to improve device ...
Removes a table from the current database. 复制 REMOVE TABLE TableName | ? [DELETE] [RECYCLE] Parameters TableName | ? Specifies the table to remove from the current database or displays the Remove dialog box so you can choose a table in the current database to remove. [DELETE] ...
然后当你执行各种数据库命令的时候,包括增删改查什么的,就会发现:ERROR 1142 (42000): SELECT command denied to user 'root'@'localhost' for table 'user'这个42000 错误表示:该用户目前没有SELECT的权限… 然后就各种先办法恢复啊… 最后找到一种方法,也比较笨吧 ...
show mac-address-table To show the MAC address table, use the show mac-address-table command. show mac-address-table [ interface_name | count | static] Syntax Description count (Optional) Lists the total number of dynamic and static entries. interface_name (Optional...