The article focus more on when and why should a particular technology be used.
Note: As of Access 2007 and onward, the default data access library is named "Microsoft Access Database Engine Object Library" or ACEDAO.
Though this has different name, it is merely a newer version of DAO with support for new functionality introduced in those versions.
Fortunately, the rest of article is relevant to both so for the rest of article, DAO will be used to refer to both DAO and ACEDAO.
It should be also noted that DAO has supported a different mode, ODBCDirect, which has been since deprecated and thus is not considered in this article.
ADO was introduced to Access originally as a replacement for DAO library and depending on which version the MDB was created in, the file may reference either DAO, ADO or both. Even without any active development, ADO has some compelling features for Access that merits its inclusion even in current development.
I'm having two table Client(Client ID, Client Name) and TIN(Client Tin ID, Name, Client ID(foreign key)). I'm using EF database first approach for data access.
Insert data working properly but getting following error while editing the data: Hi, Base on your error message, I found the thread below.
It said: The error could occur for the one-to-many relationship between Person and Location you apparently have in your model in addition to the many-to-many relationship.
For example the following code would throw the exception: "The property values that define the referential constraints" are the foreign key property value Current Location Id and the primary key value Current Location. If those values are different the exception is thrown. If not, please share your entity model about the table Client and TIN.
From Access 2000 and onward, Access has supported two different data access libraries, Data Access Objects (DAO) and Active X Data Objects (ADO).
It is a common question for budding Access developers to ask which libraries they should use.