WebWe then define a class called MyClass with a private field _myProperty of type MyEnum, and a public property MyProperty of type MyEnum. To specify the allowed enum values for the MyProperty property, we use the Enum.IsDefined method in the property setter. This method checks if the specified value is defined in the MyEnum enum. WebNov 29, 2011 · Regarding your edit asking about how to use the MySQL enum datatype, I actually do not recommend it's use if you have a business logic layer. The reason for that is that you need to maintain the enum definition in two places (the business object and the DDL for MySQL). So, I would go with your Tinyint example.
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How do I add more members to my ENUM-type column in MySQL?
WebMay 6, 2013 · Then when you execute an insert like. INSERT INTO event (weekday_type) VALUES ('SATURDAY'); using JDBC you get an exception like: Data truncated for column 'weekday_type' at row 1 because you forgot to include SATURDAY in your table definition. When the insert happens, the value gets truncated to nothing. Share. WebThe SET and ENUM data types work in a similar way because MySQL uses it with a predefined list of values. But one thing makes it different that are ENUM data type can hold only a single member of the predefined list of values, whereas SET data type allows us to store zero or any number of values together. WebApr 14, 2024 · The data context class is used to connect to the MySQL database with ADO.NET and return an IDbConnection instance. It is used by the user repository for handling all low level data (CRUD) operations for users.. The Init() method creates the MySQL database and tables if they don't already exist, it is executed once on API … fitzgerald fnp book