What is 2 tier and 3 tier in DBMS?
What is 2 tier and 3 tier in DBMS?
Two-tier architecture consists of two layers : Client Tier and Database (Data Tier). Three-tier architecture consists of three layers : Client Layer, Business Layer and Data Layer. 4. It is easy to build and maintain. It is complex to build and maintain.
How many layers are there in JDBC architecture?
The JDBC Architecture consists of two layers: 1. The JDBC API, which provides the application-to-JDBC Manager connection. 2. The JDBC Driver API, which supports the JDBC Manager-to-Driver Connection.
What are the types of JDBC architecture?
Types of JDBC Architecture(2-tier and 3-tier) The JDBC architecture consists of two-tier and three-tier processing models to access a database. They are as described below: Two-tier model: A java application communicates directly to the data source.
What is 2 tier and 3 tier in railway?
AC two tier: These air-conditioned coaches have sleeping berths across eight bays. AC three tier: Air-conditioned coaches with 64 sleeping berths. Berths are similar to 2A, but with three tiers across the width and two lengthwise for eight bays of eight.
What are the two-tier and three-tier processing models supported by JDBC?
The JDBC API supports both two-tier and three-tier processing models for database access. Figure 1: Two-tier Architecture for Data Access. In the two-tier model, a Java applet or application talks directly to the data source.
What is two tier architecture in Java?
1. Two-tier Architecture This architecture helps java program or application to directly communicate with the database. It needs a JDBC driver to communicate with a specific database. Query or request is sent by the user to the database and results are received back by the user.
What is the architecture of JDBC?
Basic JDBC architectural diagram is shown below with the positioning of all components: The java.sql package consists of many interfaces. Some popular interfaces are mentioned below: Driver Interface: This interface allows for multiple database drivers. DriverManager objects are created to communicate with the database.
What is the use of JDBC in Java?
JDBC supports two types of processing models for accessing database i.e. two-tier and three-tier. This architecture helps java program or application to directly communicate with the database. It needs a JDBC driver to communicate with a specific database.
