This is done by running a DELETE query with the row_number as the filter. I need to delete, or drop, all the tables in a MySQL database with single command without knowing the tablenames. To delete a MySQL database, perform the following steps: Log in to the WHM interface as the root user. Hence, it is necessary to be extra careful while using this command as restoration of the database is not possible if you do not have any backup of it as the contents are deleted permanently by the DROP DATABASE command. Type the password for the root user and press Enter. The DROP DATABASE statement returns the number of tables that were deleted. 'aut_id' of 'newauthor' table must exist in 'book_mast' table, In order to use this procedure you must have the drop and create database privilege (otherwise you will drop database but not able to create it again). Second, right-click the database that you want to remove for example testdb2 and choose the Drop Schema... option. Replaces 'table 1', 'table 2' and so on, for the table names you want to delete. The DROP DATABASE statement drops all tables in the database and deletes the database permanently. Syntax : The basic syntax of the Delete Query is – In case you choose Drop Now, the database will be removed immediately. Delete All Data in a MySQL Table MySQL is the world’s most popular open source database, recognized for its speed and reliability. The DELETE statement will delete rows that match the condition, This article looks at how to delete all the data from a MySQL database table and how it affects auto incremental fields. You will find no trace of the deleted database. Step 1: Let us try to delete the database named mysqlDropDemo using the following query statement: Explanation: It throws an error saying no database named mysqlDropDemo exists in my database server. Expand Databases, right-click the database to delete, and then click Delete. To drop database from mysql command prompt, first login to your mysql server using administrative privileges. How to easily Drop complete MySQL database. The phpMyAdmin interface will appear. Be very careful with this statement! It shows that the query was fine and no rows were affected and show that one warning is there. The query is as follows − mysql> truncate table TruncateTableDemo; Query OK, 0 rows affected (0.93 sec) Now you can check all records have been deleted from the table or not. Second, use the SHOW DATABASES statement to view all existing databases in the server: Third, issue the DROP DATABASE statement: MySQL returned zero affected-rows. hoursRequired INT, We can delete the database and all the contents of the database when they are no more useful by using the DROP DATABASE command. Reply. Confirm the correct database is selected, and then click OK. The data is partitioned by id and within each partition there are unique row numbers. In MySQL, the database and schema are used interchangeably which means both are referred to the same thing and are synonyms of each other. The DROP DATABASE statement is used to drop an existing SQL database. PRIMARY KEY (testCaseId) If you do not have these databases available, you can follow the previous tutorial to create them. There is no right way or best way, use what you feel most comfortable with. DROP TABLE [IF EXIST] [table 1], [table 2], [table n]; It is a good idea to use the 'IF EXISTS' option, to avoid errors if you are trying to drop a table that does not exists in the database. Step 2: Now, let us execute the same query with IF EXISTS clause in it: Step 3: Let us create the database named mysqlDropDemo using the following query: Step 4: Now if you execute the same query of DROP SCHEMA then the output will be different. 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