Delete Dynamic Table

Description

This command is used to delete an existing dynamic table. A dynamic table is a special table structure that can dynamically adjust the number and type of columns based on actual data. When you no longer need a dynamic table, you can use this command to remove it from the database.

Syntax

DROP DYNAMIC TABLE [IF EXISTS] dtname;

• IF EXISTS: Optional parameter used to avoid errors caused by the table not existing when deleting a dynamic table. If IF EXISTS is specified, the system will not report an error when attempting to delete a non-existent dynamic table.

Usage Example

1. Delete the dynamic table named change_table_dy:

   DROP DYNAMIC TABLE IF EXISTS change_table_dy;
   

2. Delete the dynamic table named `employee_dy` without checking if the table exists:

DROP DYNAMIC TABLE employee_dy;

3. Delete the dynamic table named sales_dy without reporting an error if the table does not exist: {#delete-dynamic-table}

DROP DYNAMIC TABLE IF EXISTS sales_dy;

Precautions

• Before performing the delete dynamic table operation, please ensure that you have backed up the data in the table to prevent data loss.
• The delete dynamic table operation is irreversible. Once executed, the table and its data will be permanently lost.
• When deleting a dynamic table, please ensure that no other users or processes are accessing the table. If necessary, you can pause the relevant operations before performing the delete operation.

Related Commands

• CREATE DYNAMIC TABLE: Create a dynamic table.
• ALTER DYNAMIC TABLE: Modify the structure of a dynamic table.