A very important feature in any database tables are temporary tables, with them you can create a table in a separate part of the database that will automatically deleted when the connection to the user is finished. They are widely used by DBAs on several occasions, a practical example of using this feature is when you need to perform inserts into a table from the SELECT statement, validating the earlier records and thus optimizing data entry.

In MySQL, temporary tables can be easily created using the following syntax:

CREATE TEMPORARY TABLE [Table name]

(

[Fields]

)

To illustrate, we will create a table of simple products.

CREATE TEMPORARY TABLE tbl_Product_Temp

(

cd_Prod INTEGER NOT NULL,

Name VARCHAR(100) NOT NULL

)

Just like a normal table, the SELECT, INSERT, UPDATE and DELETE will work exactly the same for temporary tables.

SELECT *

FROM tbl_Product_Temp

mysql

MySQL has, in addition to temporary tables, several features that really make it a great option. Learn the advantages of working with MySQL on projects using PHP language on our official page and understand why MySQL is so popular.

By ,

August 27, 2013

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