Top "Dao" questions

A Data Access Object (DAO), is a design pattern in object-oriented software design, creating an object that provides an abstract interface to some type of database or other persistence mechanism.

What is the difference between POJO and DAO

May I know what is the difference between POJO (Plain old java object) and DAO (Data access object) in Java. …

java dao pojo
DAO pattern - where do transactions fit in?

So I've got this generic DAO thing going on and at face value it appears to be ok. It's basically …

transactions dao
Difference between Active Record and DAO?

What's the difference between a Data Access Object and Active Record? They seem to be quite the same, as both …

activerecord dao
How to create database from Assets in Android using GreenDao ORM library

I am using GreenDao orm library for creating database, it works good with the First sample for Creating Database, from …

android orm dao greendao
What unit test to write for a class using generics in Java?

Taking the very specific example of the JpaDao class defined in this article: public abstract class JpaDao<K, E&…

java unit-testing generics jpa dao
Check table exists

I need to check if a table exists in a database. I currently develop using Yii2. My case is a …

php mysql yii2 dao
Display data from a database using JSP, Servlets, JSTL and Command Pattern

I'm trying to display data from a database, but nothing happens on JSP. I used a design pattern Command. Where …

jsp jakarta-ee servlets dao command-pattern
Spring session-scoped beans as dependencies in prototype beans?

I read spring docs on this subject several times, but some things are still unclear to me. Documentation states: If …

spring scope dao javabeans httpsession
"Type of the parameter must be a class annotated with @Entity" while creating Generic DAO interface in Room

I am using Room architecture component for persistence. I have created generic DAO interface to avoid boilerplate code. Room Pro …

java android persistence dao android-room
Using VBA-Excel for an SQL query across multiple databases

Using Excel 2010, SQL and DAO I am trying to execute a query against tables which reside outside the current spreadsheet. …

sql excel vba dao data-access-object