Method #2: MySQL DROP All Tables in a single command There is another way to drop all tables from a MySQL database using a single command. This method involves using the MySQL shell and a bit of bash scripting. Here’s how you can do it: Step #1: Open Terminal Launch your terminal ...
This tutorial demonstrates several ways a user can drop all tables in MySQL and lists sample scripts to make it possible. The reason why you can’t outright drop all tables in a single line of code is that in a sizeable and well-designed database, there will likely be a lot of foreign...
Mysql drop all tables using a shell script But if you don’t want to recreate the database for some reason, then the next solution would be to usemysqldumpcommand line tool to generate a set ofDROP TABLEstatements from your database. Here’s the script from@cweinbergerfor dropping all tab...
Method 2: Drop All Tables In One Script An answer on StackOverflowherehas also provided a method for dropping all MySQL tables without the manual step of copying and pasting the Drop Table statements: SETFOREIGN_KEY_CHECKS=0;SETGROUP_CONCAT_MAX_LEN=32768;SET@tables=NULL;SELECTGROUP_CONCAT('`...
DROP TABLE Statement in MySQL Command-Line Client First, let us see how we will delete the table in the MySQL command-line client. Suppose we have a database named "new_schooldb" and inside this database, we have two tables: "Student_details" and "student_subjects", ...
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; ...
4:查看现在的数据库中存在什么表 mysql> SHOW TABLES; 5:创建一个数据库表 mysql> Create TABLE MYTABLE (name VARCHAR(20), sex CHAR(1)); 6:显示表的结构: mysql> DESCRIBE MYTABLE; 7:往表中加入记录 mysql> insert into MYTABLE values (“hyq”,”M”); 8:用文本方式将数据装入数据库表中(...
dict_mutex_enter_for_mysql(); n_tables_evicted = dict_make_room_in_cache( innobase_get_table_cache_size(), pct_check); dict_mutex_exit_for_mysql(); rw_lock_x_unlock(dict_operation_lock); return(n_tables_evicted); } 1. 2.
3、通过ROW OPERATIONS相关信息,可以看到MySQL的Main Thread也被同一个线程140037411514112阻塞,状态处于enforcing dict cache limit状态 3 queries inside InnoDB, 0 queriesinqueue 17readviews open inside InnoDB Process ID=39257, Main thread ID=140037563102976, state: enforcing dict cachelimitNumber of rows inse...
Just came across this: mysql -u uname dbname -e "show tables" | grep "tbl_MetaData_" | gawk '{print "drop table " $1 ";"}' | mysql -u uname dbname Reference: http://knaddison.com/technology/mysql-drop-all-tables-database-using-single-command-line-command...