![]() With the help of queries above we can insert the values in the table. MySQL has first-party support for JSON columns, and they can be perfect for certain use cases but less than ideal for others. You get the readability of a string with the storage of an integer. Mysql> Insert into marks(id, name, result) values(102,'Yashraj','Fail') An ENUM is useful when you have a fixed set of items that can be stored in the column. MySQL ENUM is a Key/String Value Pair Type. For this article, the MySQL version is 8.0.23, and the storage engine is InnoDB. mysql> Insert into marks(id, name, result) values(101,'Aarav','Pass') After reading the following 12 key facts about MySQL ENUM, you can decide if it is good for your next database or table in MySQL. When you insert a NULL value or 0 into the INT AUTOINCREMENT column, the value of the column is set to the next sequence value. In addition, the INT column can have an AUTOINCREMENT attribute. As such, it has no place in the column definition. ![]() Product type is just another piece of information about your product. You only ever should consider them in small, discrete sets of options, which are well-defined and unchanging. The query above will create a table named marks with an ENUM field. Because integer type represents exact numbers, you usually use it as the primary key of a table. Since that's extremely expensive in ENUM s, I'd say that's a clear vote against using them. See Section 11.3.1, String Data Type Syntax for ENUM type syntax and length limits. Example:įollowing is an example of creating a table with ENUM column − mysql> Create table marks(id int Primary key NOT NULL, Name Varchar(255) NOT NULL, Result ENUM('Pass', 'Fail') NOT NULL) An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time. ![]() In the above syntax, we have three enumeration values. We can create ENUM columns in MySQL with the help of the following syntax − CREATE TABLE table_name( For creating an ENUM column, the enumeration value must be a quoted string literals.
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