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import java.sql.*; 
import groovy.sql.Sql 

class Example {
   static void main(String[] args) {
      // Creating a connection to the database
      def sql = Sql.newInstance('jdbc:mysql://localhost:3306/TESTDB', 'testuser', 
         'test@123', 'com.mysql.jdbc.Driver')
			
      sql.connection.autoCommit = false
      def sqlstr = "DELETE FROM EMPLOYEE WHERE AGE > 20"
   
      try {
         sql.execute(sqlstr);
         sql.commit()
         println("Successfully committed")
      }catch(Exception ex) {
         sql.rollback()
         println("Transaction rollback")
      }
   
      sql.close()
   } 
}

import java.sql.*; 
import groovy.sql.Sql
 
class Example {
   static void main(String[] args) {
      // Creating a connection to the database
      def sql = Sql.newInstance('jdbc:mysql://localhost:3306/TESTDB', 'testuser', 
         'test123', 'com.mysql.jdbc.Driver')
			
      sql.connection.autoCommit = false  
      
      def firstname = "Mac"
      def lastname ="Mohan"
      def age = 20
      def sex = "M"
      def income = 2000  
		
      def sqlstr = "INSERT INTO EMPLOYEE(FIRST_NAME,LAST_NAME, AGE, SEX, 
         INCOME) VALUES " + "(${firstname}, ${lastname}, ${age}, ${sex}, ${income} )"
			
      try {
         sql.execute(sqlstr);
         sql.commit()
         println("Successfully committed") 
      } catch(Exception ex) {
         sql.rollback()
         println("Transaction rollback")
      }
		
      sql.close()
   }
}

import java.sql.*; 
import groovy.sql.Sql 

class Example {
   static void main(String[] args){
      // Creating a connection to the database
      def sql = Sql.newInstance('jdbc:mysql://localhost:3306/TESTDB', 'testuser', 
         'test@123', 'com.mysql.jdbc.Driver')
			
      sql.connection.autoCommit = false
      def sqlstr = "UPDATE EMPLOYEE SET AGE = AGE + 1 WHERE SEX = 'M'" 
	  
      try {
         sql.execute(sqlstr);
         sql.commit()
         println("Successfully committed")
      }catch(Exception ex) {
         sql.rollback() 
         println("Transaction rollback")
      }
		
      sql.close()
   } 
}

import java.sql.*; 
import groovy.sql.Sql
 
class Example {
   static void main(String[] args) {
      // Creating a connection to the database
      def sql = Sql.newInstance('jdbc:mysql://localhost:3306/TESTDB', 'testuser', 
         'test123', 'com.mysql.jdbc.Driver')  
			
      sql.eachRow('select * from employee') {
         tp -> 
         println([tp.FIRST_NAME,tp.LAST_NAME,tp.age,tp.sex,tp.INCOME])
      }  
		
      sql.close()
   } 
}