Making a DateTime field in a database automatic

Question

I m putting together a simple test database to learn MVC with  I want to add a DateTime field to show when the record was CREATED    ID   int Name   Char DateCreated    dateTime  DateTime2       I have a feeling that this type of DateTime capture can be done automatically - but that s all I have  a feeling  Can it be done  And if so how   While we re on the subject  if I wanted to include another field that captured the DateTime of when the record was LAST UPDATED how would I do that   I m hoping to not do this manually   Many thanks  Mike

User · Answer

Just right click on that column and select properties and write getdate()in Default value or binding.like image:

If you want do it in CodeFirst in EF you should add this attributes befor of your column definition:

[Databasegenerated(Databaseoption.computed)]

this attributes can found in System.ComponentModel.Dataannotion.Schema.

In my opinion first one is better:))

User · Answer

You need to set the  default value  for the date field to getdate     Any records inserted into the table will automatically have the insertion date as their value for this field   The location of the  default value  property is dependent on the version of SQL Server Express you are running  but it should be visible if you select the date field of your table when editing the table

User · Answer

Yes  here s an example   CREATE TABLE myTable   col1 int  createdDate datetime DEFAULT getdate     updatedDate datetime DEFAULT getdate        You can INSERT into the table without indicating the createdDate and updatedDate columns   INSERT INTO myTable  col1  VALUES  1    Or use the keyword DEFAULT   INSERT INTO myTable  col1  createdDate  updatedDate  VALUES  1  DEFAULT  DEFAULT    Then create a trigger for updating the updatedDate column   CREATE TRIGGER dbo updateMyTable  ON dbo myTable FOR UPDATE  AS  BEGIN      IF NOT UPDATE updatedDate           UPDATE dbo myTable SET updatedDate GETDATE            WHERE col1 IN  SELECT col1 FROM inserted   END  GO

[database] Making a DateTime field in a database automatic?

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