Change a Column Name in MySQL

Change a Column Name in MySQL In the event that you previously made your MySQL database, and you choose afterward that one of the segments is named mistakenly, you dont need to expel it and include a substitution; you can essentially rename it. Renaming a Database Column You rename a segment in MySQL utilizing the ALTER TABLE and CHANGE commands together to change a current section. For instance, say theâ column is right now named Soda, however you conclude that Beverage isâ a increasingly suitable title. The segment is situated on the table entitled Menu. Here is a case of how to transform it: Adjust TABLE menu CHANGE soft drink refreshment varchar(10) ; In a genericâ form, where you substitute your terms, this is: Adjust TABLE tablename CHANGE oldname newname varchar(10) ; About VARCHAR The VARCHAR(10) in the models can change to be fitting for your segment. VARCHAR is a character string of variable length. The most extreme length-in this exampleâ it is 10-shows the greatest number of characters you need to store in the segment. VARCHAR(25) could save to 25 characters. Different Uses for ALTER TABLE The ALTER TABLE command can likewise be utilized to add another segment to a table or to evacuate a whole section and every one of its information from a table. For instance, to include a segment use: Modify TABLE table_nameADD column_name datatype To erase a segment, use: Modify TABLE table_nameDROP COLUMN column_nameâ You can likewise make changes to a sections size and type in MySQL.