How to DROP All the tables in MySQL? Dropping all tables in a MySQL database is quite straightforward. However, it’s also a powerful action that can’t be undone. So be sure you’re ready to lose all the data in those tables before proceeding. Better to take a backup for the future...
Then you list all the available tables from the current database: SELECT table_name FROM information_schema.tables WHERE table_schema = db_name; And delete all tables on by one from the list: DROP TABLE IF EXISTS table1; DROP TABLE IF EXISTS table2; DROP TABLE IF EXISTS table3; Remember...
In MySQL Workbench, you can drop all tables pretty easily as well. Select all of the tables in your database in the Schema Browser clicking on the first table, holding Shift, and clicking on the last table. Right-click on the selected tables and select “Drop (n) Tables…” Click on ...
4. 基础SQL-DDL语句-操作数据库-操作表分类 描述 关键字 DDL(Data Definition Language)数据定义语言 用来定义数据库对象:数据库,表,列 create,drop,alter等 1. DDL操作数据库 1.1 创建数据库直接创建数据库 CREATE DATABASE 数据库名; 判断是否存在并创建数据库(了解) CREATE DATABASE IF NOT EXISTS 数据库名...
mysql> HELP ‘DROP DATABASE’;Name: ‘DROP DATABASE’Description:Syntax:DROP {DATABASE | SCHEMA} [IF EXISTS] db_nameDROP DATABASE drops all tables in the database and deletes thedatabase. Be very careful with this statement! To use DROP DATABASE,you need the DROP privilege on the data...
SELECTtable_nameFROMinformation_schema.tablesWHEREtable_schema=db_name; Afterwards, copy all of the tables in the result from the above query and delete them one by one. DROPTABLEIFEXISTStableOne;DROPTABLEIFEXISTStableTwo;DROPTABLEIFEXISTStableThree;DROPTABLEIFEXISTStableEtc; ...
drop mysql table 后还存在 mysql drop schema MySQL 5.0 版本开始支持存储过程。 存储过程(Stored Procedure)是一种在数据库中存储复杂程序,以便外部程序调用的一种数据库对象。 存储过程是为了完成特定功能的SQL语句集,经编译创建并保存在数据库中,用户可通过指定存储过程的名字并给定参数(需要时)来调用执行。
DROP DATABASE Syntax DROP {DATABASE | SCHEMA} [IF EXISTS] db_name...删除指定库中的表之后删除库。需具有库上的DROP权限。 库被删除后库上存在的用户权限不会被自己主动删除。IF EXISTS用于阻止库名不存在时引起的错误。库被删除后默认库会被重置。
UPDATE performance_schema.setup_instruments SET ENABLED= 'YES' WHERE NAME = 'statement/sql/truncate'; UPDATE performance_schema.setup_instruments SET ENABLED= 'YES' WHERE NAME = 'statement/sql/drop_table'; UPDATE performance_schema.setup_instruments SET ENABLED= 'YES' WHERE NAME = 'statement/sql...
undrop-for-innodb 是针对 MySQL innodb 的数据恢复工具,本文主要介绍在无备份、无binlog等场景下,如何恢复drop table的表数据。 步骤: 1.模拟误删除(droptable);2.安装、编译undrop-for-innodb工具;3.扫描mysql数据文件所在磁盘;4.扫描ibdata文件;5.生成字典表;6.恢复表结构;7.恢复表数据; ...