![]() The index for Male is 1, and Female is 2. Let me start with the gender column that contains 2 values: Male and Female. There are 2 MySQL ENUM values here: gender and country. Modifieddate datetime NOT NULL DEFAULT NOW() 'Japan','Philippines','Thailand', 'Australia','New Zealand') 'United Kingdom','Poland','Ukraine', 'Lithuania', Gender enum('Male','Female') NOT NULL DEFAULT 'Female',Ĭountry enum('United States', 'Canada', 'Brazil', Id int NOT NULL PRIMARY KEY AUTO_INCREMENT, MySQL ENUM Index Starts with 1 But Can Be NULL or Zero Otherwise, you need a table.īut how are these indexes numbered? 2. ![]() Think of 20 or fewer items and values that will never have further attributes. That is a fixed list that will never expand. So, whether it’s about a shortlist of colors, customer types, salutations, or payment methods, numbers will be assigned. MySQL automatically assigns numbers as they appear on your list. ![]() Values are strings, and keys are index numbers. MySQL ENUM is a Key/String Value Pair Type Like any other thing in the world, it’s not always a happily ever after.Īfter reading the following 12 key facts about MySQL ENUM, you can decide if it is good for your next database or table in MySQL.įor this article, the MySQL version is 8.0.23, and the storage engine is InnoDB. ![]() Under strict server mode, this means you can’t force a wrong entry. You set these permitted values during the table creation as shown below: CREATE TABLE ProductĬolor enum('blue','red','yellow','black','white') NOT NULL DEFAULT 'blue'įor starters, data validation is instant without another table and a foreign key. ![]() The initial overviews are intentionally brief.MySQL ENUM data is a string data type with a value chosen from the list of permitted values. Types in each category, and a summary of the data type storage (character and byte) types, spatial types, and theĪn overview and more detailed description of the properties of the Several categories: numeric types, date and time types, string MEDIUMINT, BIGINT 11.1.3 Fixed-Point Types (Exact Value) - DECIMAL, NUMERIC 11.1.4 Floating-Point Types (Approximate Value) - FLOAT, DOUBLE 11.1.5 Bit-Value Type - BIT 11.1.6 Numeric Type Attributes 11.1.7 Out-of-Range and Overflow Handling 11.2 Date and Time Data Types 11.2.1 Date and Time Data Type Syntax 11.2.2 The DATE, DATETIME, and TIMESTAMP Types 11.2.3 The TIME Type 11.2.4 The YEAR Type 11.2.5 Automatic Initialization and Updating for TIMESTAMP and DATETIME 11.2.6 Fractional Seconds in Time Values 11.2.7 What Calendar Is Used By MySQL? 11.2.8 Conversion Between Date and Time Types 11.2.9 2-Digit Years in Dates 11.3 String Data Types 11.3.1 String Data Type Syntax 11.3.2 The CHAR and VARCHAR Types 11.3.3 The BINARY and VARBINARY Types 11.3.4 The BLOB and TEXT Types 11.3.5 The ENUM Type 11.3.6 The SET Type 11.4 Spatial Data Types 11.4.1 Spatial Data Types 11.4.2 The OpenGIS Geometry Model 11.4.3 Supported Spatial Data Formats 11.4.4 Geometry Well-Formedness and Validity 11.4.5 Spatial Reference System Support 11.4.6 Creating Spatial Columns 11.4.7 Populating Spatial Columns 11.4.8 Fetching Spatial Data 11.4.9 Optimizing Spatial Analysis 11.4.10 Creating Spatial Indexes 11.4.11 Using Spatial Indexes 11.5 The JSON Data Type 11.6 Data Type Default Values 11.7 Data Type Storage Requirements 11.8 Choosing the Right Type for a Column 11.9 Using Data Types from Other Database Engines Table of Contents 11.1 Numeric Data Types 11.1.1 Numeric Data Type Syntax 11.1.2 Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT, ![]()
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