DROP TABLE . [21 Sep 2009 7:30] Bugs System Note: Consider identifying duplicate values in MySQL databases and then deleting them to improve data efficiency. You can use DROP IF EXISTS to drop any temporary table as well if it exists. Instead, use a script to help perform this task. DROP [TEMPORARY] TABLE [IF EXISTS] tbl_name [, tbl_name] ... [RESTRICT | CASCADE] DROP TABLE removes one or more tables. This keyword helps us to avoid the mistake of deleting a permanent table when the temporary table and permanent table have the same name in the current session. Summary: in this tutorial, you will learn how to use the MySQL DROP DATABASE statement to delete an existing database in the server.. Create a selection from the results of this code: The code in the section below is presented in its entirety for ease of use: Note: If you are interested in how to create index in new table, read this guide. This is helpful if you are not sure the existence of the table in advance. DROP TABLE causes an implicit commit, except when used with the TEMPORARY keyword. Therefore, you should be very careful when using this statement. The tutorial explores DROP statement commands and shows options to drop tables from MySQL databases. Creating & Dropping Table using DROP TABLE IF EXISTS . The output confirms that the table has been removed. DROP TABLE table_name ; Dropping Tables from Command Prompt. MySQL allows you to drop one or more tables in a single DROP TABLE statement. Remarks. 2. In the following example, the first statement will check if a table named Test exists in the tempdb database. © 2012 - 2020 My Tec Bits. Dropping the table only if it doesn't exist isn't quite right. If I use Local Temp Tables, unfortunately all tables will drop as soon as the SP has executed, and I won't have any data for my reports. Press CTRL+C to copy. In SQL Server 2016 And Higher In SQL Server 2016, Microsoft introduced DIY or DROP IF EXISTS functionality. This site uses Akismet to reduce spam. Temporary tables are used to generate and store a data set shortly before using it. Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on Pocket (Opens in new window), Click to email this to a friend (Opens in new window). © 2020 Copyright phoenixNAP | Global IT Services. In my earlier article, I have explained how to drop database objects including regular tables only if exists. The following shows the syntax of the DROP DATABASE statement: You must have the DROP privilege for each table. Once the temporary table is dropped, the physical table can be accessed again. 4. But first, create a sample table which we’ll use in our example. This statement deletes the entire structure as well as the content of the table. In that article, unfortunately, I have not mentioned about temporary or temp tables. If you create a new table with the same name as the deleted one, the existing user privileges will be assigned. I suppose could count the rows in Tablex and it would throw an exception if the table did not exist . MySQL DROP TABLE statement. We have to underline one point about this statement; it works on SQL Server 2016 or the higher version of the SQL Server. He has more than 7 years of experience in implementing e-commerce and online payment solutions with various global IT services providers. By adding IF EXISTS to the drop statement, you can drop the object only when it exists in the database. The basic syntax of the command is as follows: Note: When deleting a MySQL table, all user privileges associated with that table remain. Option effectively Syntax of the SQL Server 2016 or the higher version the! 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