How do I use iBATIS?

To define SQL mapping statement using iBATIS, we would add tag in Employee. xml file and inside this tag definition, we would define an “id” which will be used in IbatisRead. java file for executing SQL SELECT query on database. Here we did not use WHERE clause with SQL SELECT statement.

What is resultType in MyBatis?

resultType: the fully qualified name of the java type is now used. It means that mybatis executes sql and converts the data in the ResultSet into Student type objects. mybatis will do the following: 1. Call the parameterless construction method of com.

Why do we use MyBatis?

MyBatis is an open source persistence framework which simplifies the implementation of database access in Java applications. It provides the support for custom SQL, stored procedures and different types of mapping relations. Simply put, it’s an alternative to JDBC and Hibernate.

Is MyBatis a ORM?

Both Hibernate and MyBatis are open source Object Relational Mapping (ORM) tools available in the industry.

How do you pass parameters in MyBatis?

When you want to pass multiple parameters in the method, you have to name the parameters with annotation: Configuration findByKeyAndUserId(@Param(“key”) String key, @Param(“userId”) Long userId); This annotation based syntax actually behave like a key-value map. Keys are provided by @Param.

How do I write SQL query in MyBatis?

To define SQL mapping statement using MyBatis, we would add tag in Student. xml file and inside this tag definition, we would define an “id” which will be used in mybatisRead. java file for executing SQL SELECT query on database.

What is parameter type MyBatis?

MyBatis provides various attributes for insert mapper, but largely we use id and parameter type. id is unique identifier used to identify the insert statement. On the other hand, parametertype is the class name or the alias of the parameter that will be passed into the statement.