What are ENUMs used for in MySQL? Using Enum can restrict the number of values that can be allowed to go inside a table. If there is an ENUM for Colors ENUM(‘blue’,’yellow’,’green’) I can use an insert statement like Insert colors values (‘red’). ...
with a range from -128 to 127. The new data type is a totally different animal. It’s not a single bit. It’s a fixed-width “bit-field value,” which can be from 1 to 64 bits wide. This means it doesn’t store a single BIT value; it’s something akin to the ENUM and SET...
(MySQL) .NET pdf viewer .pdb files in production environment? 'An operation was attempted on a nonexistent network connection' error 'bootstrap' is not a valid script name. The name must end in '.js'. 'Cannot implicitly convert 'System.TimeSpan' to 'System.DateTime' 'DayOfWeek' is not...
You have a table with 1000 rows and max value for year column is 2010 and min value for year column is 2000 -- without any other information you can "guess" that where year = 2007 will take 10% of all items assuming an average distribution. In this case it would...
This section describes 'enum' types, which are defined by 'enum' declaration statements. An 'enum' type is actually a special kind of class type.
enum approaches look pretty much the same for a human eye. On the other hand, the integer is not human-readable. Then you see status=1, you have no way to say what status is just by looking into the database, and you have to keep the mapping between numbers and words in your code...
As of MySQL 8.0.16, the server performs the tasks previously handled by mysql_upgrade. After installation of a new MySQL version, the server now automatically performs all necessary upgrade tasks at the next startup and is not dependent on the DBA invoking mysql_upgrade. In addition, the serv...
MySQL is the world’s most popular enterprise-grade open-source relational database management system (RDBMS) that is being used at Facebook, Google, and by many online websites/applications.
Svisstack 16.6k66 gold badges6868 silver badges101101 bronze badges Add a comment 1 You've got extra quotes in there. Change to this: sex ENUM('male', 'female') NOT NULL DEFAULT 'male' You were specifying a default value that was not in the list, ie 'male' (with literal quot...
How to do multiple radio button list using Enum in MVC3 and Return to View how to do not route images, css,js etc How to do the dependency injection from web.config file How to do validation on Html.CheckboxFor() control to decide value of other checkbox. How To Download a View in ...