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diff --git a/java/samples/sql/preparedStatement/DEV_J130_lesson2_group1.java b/java/samples/sql/preparedStatement/DEV_J130_lesson2_group1.java
new file mode 100644
index 0000000..7ca8869
--- /dev/null
+++ b/java/samples/sql/preparedStatement/DEV_J130_lesson2_group1.java
@@ -0,0 +1,35 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package dev_j130_lesson2_group1;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * @author denis
+ */
+public class DEV_J130_lesson2_group1 {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        Repository repository = new Repository();
+        List<Person>persons = new ArrayList<>();
+        persons.add(new Person("Baker", "Alan Lan", "+79215847799", "alan@google.com"));
+        persons.add(new Person("Clerk", "Andrey Dronov", "+79228561295", "andr.dron@google.com"));
+        persons.add(new Person("Dentist", "Ivan Antonov", "+79214526633", "ivan.ant@google.com"));
+        //repository.saveAll(persons);
+        
+        //Получение всех записей таблицы Person по полю jobtitle
+        //repository.findPersonByJobtitle("Pharmacist").forEach(System.out::println);
+        
+        //Получение всех записей таблицы Person
+        repository.findAllPerson().forEach(System.out::println);
+    }
+    
+}
diff --git a/java/samples/sql/preparedStatement/Domain.java b/java/samples/sql/preparedStatement/Domain.java
new file mode 100644
index 0000000..d0577e0
--- /dev/null
+++ b/java/samples/sql/preparedStatement/Domain.java
@@ -0,0 +1,87 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package dev_j130_lesson2_group1;
+
+import java.sql.Date;
+import java.util.Objects;
+
+/**
+ *
+ * @author denis
+ */
+public class Domain {
+    int id;
+    String webname;
+    String domainname;
+    String ip;
+    Date datereg;
+    String countryreg;
+    Person person;
+
+    public Domain(int id, String webname, String domainname, String ip, Date datereg, String countryreg, Person person) {
+        this.id = id;
+        this.webname = webname;
+        this.domainname = domainname;
+        this.ip = ip;
+        this.datereg = datereg;
+        this.countryreg = countryreg;
+        this.person = person;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 79 * hash + this.id;
+        hash = 79 * hash + Objects.hashCode(this.webname);
+        hash = 79 * hash + Objects.hashCode(this.domainname);
+        hash = 79 * hash + Objects.hashCode(this.ip);
+        hash = 79 * hash + Objects.hashCode(this.datereg);
+        hash = 79 * hash + Objects.hashCode(this.countryreg);
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final Domain other = (Domain) obj;
+        if (this.id != other.id) {
+            return false;
+        }
+        if (!Objects.equals(this.webname, other.webname)) {
+            return false;
+        }
+        if (!Objects.equals(this.domainname, other.domainname)) {
+            return false;
+        }
+        if (!Objects.equals(this.ip, other.ip)) {
+            return false;
+        }
+        if (!Objects.equals(this.countryreg, other.countryreg)) {
+            return false;
+        }
+        if (!Objects.equals(this.datereg, other.datereg)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return "Domain{" + "id=" + id + ", webname=" + webname + ", domainname=" + domainname + ", ip=" + ip + ", datereg=" + datereg + ", countryreg=" + countryreg + '}';
+    }
+
+    
+    
+    
+}
diff --git a/java/samples/sql/preparedStatement/Person.java b/java/samples/sql/preparedStatement/Person.java
new file mode 100644
index 0000000..d2b51c2
--- /dev/null
+++ b/java/samples/sql/preparedStatement/Person.java
@@ -0,0 +1,137 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package dev_j130_lesson2_group1;
+
+import java.util.LinkedHashSet;
+import java.util.Objects;
+import java.util.Set;
+
+/**
+ *
+ * @author denis
+ */
+public class Person {
+    private int id;
+    private String jobtitle;
+    private String firstnamelastname;
+    private String phone;
+    private String email;
+    private Set<Domain> domains = new LinkedHashSet<>();
+
+    public Person(int id, String jobtitle, String firstnamelastname, String phone, String email) {
+        this.id = id;
+        this.jobtitle = jobtitle;
+        this.firstnamelastname = firstnamelastname;
+        this.phone = phone;
+        this.email = email;
+    }
+    
+    public Person(String jobtitle, String firstnamelastname, String phone, String email) {
+        this.jobtitle = jobtitle;
+        this.firstnamelastname = firstnamelastname;
+        this.phone = phone;
+        this.email = email;
+    }
+
+    public void addDomains(Domain domain) {
+        domains.add(domain);
+    }
+    
+    public int getId() {
+        return id;
+    }
+
+    public String getJobtitle() {
+        return jobtitle;
+    }
+
+    public void setJobtitle(String jobtitle) {
+        this.jobtitle = jobtitle;
+    }
+
+    public String getFirstnamelastname() {
+        return firstnamelastname;
+    }
+
+    public void setFirstnamelastname(String firstnamelastname) {
+        this.firstnamelastname = firstnamelastname;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+    
+    
+
+    @Override
+    public int hashCode() {
+        int hash = 3;
+        hash = 83 * hash + this.id;
+        hash = 83 * hash + Objects.hashCode(this.jobtitle);
+        hash = 83 * hash + Objects.hashCode(this.firstnamelastname);
+        hash = 83 * hash + Objects.hashCode(this.phone);
+        hash = 83 * hash + Objects.hashCode(this.email);
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final Person other = (Person) obj;
+        if (this.id != other.id) {
+            return false;
+        }
+        if (!Objects.equals(this.jobtitle, other.jobtitle)) {
+            return false;
+        }
+        if (!Objects.equals(this.firstnamelastname, other.firstnamelastname)) {
+            return false;
+        }
+        if (!Objects.equals(this.phone, other.phone)) {
+            return false;
+        }
+        if (!Objects.equals(this.email, other.email)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Person{").append("id=").append(id).append(", jobtitle=").append(jobtitle);
+        sb.append(", firstnamelastname=").append(firstnamelastname).append(", phone=").append(phone);
+        sb.append(", email=").append(email).append("}\n");
+        if(domains.size()>0){
+            domains.forEach(domain -> {
+                sb.append(domain).append("\n");
+            });
+        }
+        return sb.toString();
+    }
+    
+    
+}
diff --git a/java/samples/sql/preparedStatement/Repository.java b/java/samples/sql/preparedStatement/Repository.java
new file mode 100644
index 0000000..bc9dd7c
--- /dev/null
+++ b/java/samples/sql/preparedStatement/Repository.java
@@ -0,0 +1,110 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package dev_j130_lesson2_group1;
+
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.stream.Collectors;
+
+/**
+ *
+ * @author denis
+ */
+public class Repository {
+    private String url;
+    private String login;
+    private String password;
+
+    public Repository() {
+        url = "jdbc:derby://localhost:1527/PersonsDB";
+        login = "root";
+        password = "root";
+    }
+    
+    
+    
+    public Set<Person> findAllPerson(){
+        Map<Integer, Person> personMap = new LinkedHashMap<>();
+        try (Connection connection = DriverManager.getConnection(url, login, password);
+                Statement statement = connection.createStatement()){
+            ResultSet rs = statement.executeQuery("SELECT * FROM PERSON LEFT JOIN DOMAINS ON PERSON.ID=DOMAINS.PERSONID");
+            while(rs.next()){
+                Person person;
+                Integer personId = rs.getInt(1);
+                if(!personMap.containsKey(personId)){
+                    String jobtitle = rs.getString(2);
+                    String firstnamelastname = rs.getString(3);
+                    String phone = rs.getString(4);
+                    String emai = rs.getString(5);
+                    person = new Person(personId, jobtitle, firstnamelastname, phone, emai);
+                    personMap.put(personId, person);
+                }else person = personMap.get(personId);
+                int domainId = rs.getInt(6);
+                String domainname = rs.getString(8);
+                if(domainname!=null){
+                    String webname = rs.getString(7);
+                    String ip = rs.getString(9);
+                    Date datereg = rs.getDate(10);
+                    String countryreg = rs.getString(11);
+                    Domain domain = new Domain(domainId, webname, domainname, ip, datereg, countryreg, person);
+                    person.addDomains(domain);
+                }
+            }
+        } catch (SQLException ex) {
+            Logger.getLogger(Repository.class.getName()).log(Level.SEVERE, null, ex);
+        }
+        return personMap.values().stream().collect(Collectors.toSet());
+    }
+    
+    public Set<Person> findPersonByJobtitle(String jobtitle){
+        Set<Person> persons = new LinkedHashSet<>();
+        try (Connection connection = DriverManager.getConnection(url, login, password);
+                PreparedStatement ps = connection.prepareStatement("SELECT ID, JOBTITLE, FIRSTNAMELASTNAME, PHONE, EMAIL FROM PERSON WHERE JOBTITLE=?")){
+            ps.setString(1, jobtitle);
+            ResultSet rs = ps.executeQuery();
+            while(rs.next()){
+                int id = rs.getInt(1);
+                String job = rs.getString(2);
+                String firstnamelastname = rs.getString(3);
+                String phone = rs.getString(4);
+                String emai = rs.getString(5);
+                Person person = new Person(id, job, firstnamelastname, phone, emai);
+                persons.add(person);
+            }
+        } catch (SQLException ex) {
+            Logger.getLogger(Repository.class.getName()).log(Level.SEVERE, null, ex);
+        }
+        return persons;
+    }
+    
+    public void saveAll(List<Person> persons){
+        try (Connection connection = DriverManager.getConnection(url, login, password);
+                PreparedStatement ps = connection.prepareStatement("INSERT INTO PERSON (JOBTITLE, FIRSTNAMELASTNAME, PHONE, EMAIL) VALUES (?, ?, ?, ?)")){
+            for (Person person : persons){
+                ps.setString(1, person.getJobtitle());
+                ps.setString(2, person.getFirstnamelastname());
+                ps.setString(3, person.getPhone());
+                ps.setString(4, person.getEmail());
+                ps.addBatch();
+            }
+            ps.executeBatch();
+        } catch (SQLException ex) {
+            Logger.getLogger(Repository.class.getName()).log(Level.SEVERE, null, ex);
+        }
+    }
+}
diff --git a/java/samples/sql/querry/SQL_DEV_J130_1.txt b/java/samples/sql/querry/SQL_DEV_J130_1.txt
new file mode 100644
index 0000000..4ee1b04
--- /dev/null
+++ b/java/samples/sql/querry/SQL_DEV_J130_1.txt
@@ -0,0 +1,58 @@
+-- ///////////////////////////////////////Создание таблиц///////////////////////////////////
+
+CREATE TABLE person (
+    id int primary key generated always as identity (start with 1, increment by 1),
+    full_name varchar(200) not null,
+    birth date
+);
+
+--DROP TABLE PERSON;
+
+CREATE TABLE building (
+    id int primary key generated always as identity (start with 1, increment by 1),
+    address varchar(200) not null,
+    date_build date,
+    status varchar(50),
+    type_buiding varchar(50),
+    count_men int,
+    check (type_buiding in ('жилое', 'ТЦ', 'БЦ', 'больница')),
+    check (status='build' and date_build is null or status='done' and date_build is not null)
+);
+
+--DROP TABLE BUILDING;
+
+ALTER TABLE building ADD COLUMN person_id int;
+ALTER TABLE building ADD CONSTRAINT fk_building_person FOREIGN KEY (person_id) REFERENCES person(id)
+
+-- ////////////////////////////////////////////////////Наполнение таблиц данными//////////////////////////////////////////////////
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Andrey Rozkov', '1996-12-05');
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Maksim Rozkov', '1989-10-15');
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Olga Krot', '1982-02-03');
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Natalia Ivanova', '1999-01-23');
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Vladimir Zorin', '1996-12-05');
+INSERT INTO PERSON (FULL_NAME, BIRTH) VALUES ('Ivan Karulin', '1996-08-05');
+
+UPDATE PERSON SET BIRTH = '1998-06-25' WHERE FULL_NAME LIKE '%in';
+DELETE FROM PERSON WHERE FULL_NAME='Maksim Rozkov';
+
+SELECT * FROM PERSON;
+
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING, PERSON_ID) VALUES ('Saint Petersburg', '1956-02-06', 'done', 'жилое', 1);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING, PERSON_ID) VALUES ('Moscow', '1981-05-26', 'done', 'жилое', 1);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING, PERSON_ID) VALUES ('Saint Petersburg', '1843-12-15', 'done', 'жилое', 4);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING, PERSON_ID) VALUES ('Saint Petersburg', '1799-04-09', 'done', 'жилое', 5);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING) VALUES ('Moscow', '1650-01-01', 'done', 'жилое');
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, TYPE_BUIDING) VALUES ('Moscow', '1999-11-01', 'done', 'жилое');
+INSERT INTO BUILDING (ADDRESS, STATUS, TYPE_BUIDING) VALUES ('Moscow', 'build', 'БЦ');
+
+SELECT * FROM BUILDING;
+
+-- ////////////////////////////////////////////Запросы данных из БД///////////////////////////////////////////
+SELECT * FROM BUILDING ORDER BY ID DESC; -- сортировка по полю id в обратном порядке
+SELECT DISTINCT(STATUS) FROM BUILDING; -- выводит уникальные значения поля status
+SELECT COUNT(id) FROM BUILDING; -- выводит количество записей поля id
+
+
+SELECT * FROM PERSON p LEFT JOIN BUILDING b ON p.ID=b.PERSON_ID WHERE b.PERSON_ID is null;
+SELECT * FROM PERSON RIGHT JOIN BUILDING ON PERSON.ID=BUILDING.PERSON_ID WHERE BUILDING.PERSON_ID is null;
+SELECT p.ID, b.ADDRESS, b.PERSON_ID FROM PERSON p JOIN BUILDING b ON p.ID=b.PERSON_ID; -- тоже что и INNER JOIN;
\ No newline at end of file
diff --git a/java/samples/sql/querry/SQL_DEV_J130_2.txt b/java/samples/sql/querry/SQL_DEV_J130_2.txt
new file mode 100644
index 0000000..605e82f
--- /dev/null
+++ b/java/samples/sql/querry/SQL_DEV_J130_2.txt
@@ -0,0 +1,73 @@
+-- ///////////////////////////////////Создание таблиц///////////////////////////////////////////////
+
+DROP TABLE person;
+
+CREATE TABLE person (
+    id int primary key generated always as identity (start with 1, increment by 1),
+    full_name varchar(100) not null,
+    birthday date
+);
+
+DROP TABLE BUILDING;
+
+CREATE TABLE building (
+    id int primary key generated always as identity (start with 1, increment by 1),
+    address varchar(200) not null unique,
+    date_build date,
+    status varchar(50),
+    CHECK (status in ('строится', 'сдано')),
+    CHECK (status='строится' and date_build is null or status='сдано' and date_build is not null)
+);
+
+ALTER TABLE building ADD COLUMN person_id int;
+ALTER TABLE building ADD COLUMN COUNT_MEN int;
+ALTER TABLE building ADD CONSTRAINT fk_personId_person FOREIGN KEY (person_id) REFERENCES person(id);
+
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS) VALUES ('Saint Petersburg', '2022-01-16', 'сдано');
+INSERT INTO BUILDING (ADDRESS, STATUS) VALUES ('Saint Petersburg, Green st.', 'строится');
+
+-- ////////////////////////////Наполнение таблиц данными//////////////////////////////////////
+INSERT INTO PERSON (FULL_NAME, BIRTHDAY) VALUES ('Muhin Vadim', '1985-10-25');
+INSERT INTO PERSON (FULL_NAME, BIRTHDAY) VALUES ('Ivanov Andrey', '1999-11-15');
+INSERT INTO PERSON (FULL_NAME, BIRTHDAY) VALUES ('Sergeev Sergey', '1991-05-02');
+INSERT INTO PERSON (FULL_NAME, BIRTHDAY) VALUES ('Antonov Victor', '1989-09-10');
+INSERT INTO PERSON (FULL_NAME, BIRTHDAY) VALUES ('Petrov Sergey', '1987-07-29');
+
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, PERSON_ID) VALUES ('Saint Petersburg, Nevskiy', '1999-10-10', 'сдано', 6);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS) VALUES ('Saint Petersburg, Chkalovskiy', '1895-10-25', 'сдано');
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, PERSON_ID) VALUES ('Saint Petersburg, Morskaya', '1990-05-06', 'сдано', 6);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS) VALUES ('Saint Petersburg, Konuschenaya', '1999-08-07', 'сдано');
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, PERSON_ID) VALUES ('Saint Petersburg, Nalichnays', '1999-10-07', 'сдано', 7);
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS) VALUES ('Saint Petersburg, Kostuschko', '1998-05-01', 'сдано');
+INSERT INTO BUILDING (ADDRESS, DATE_BUILD, STATUS, PERSON_ID) VALUES ('Saint Petersburg, Veteranov', '2003-12-26', 'сдано', 8);
+INSERT INTO BUILDING (ADDRESS, STATUS) VALUES ('Saint Petersburg, Kosmonavtov', 'строится');
+
+DELETE FROM BUILDING WHERE ADDRESS LIKE '%N%';
+DELETE FROM PERSON;
+
+UPDATE PERSON SET FULL_NAME = 'Krot Evgeniy' WHERE id=6;
+
+-- ////////////////////////////////Запросы данных из БД//////////////////////////////////////////////
+SELECT ID, ADDRESS, DATE_BUILD, STATUS, PERSON_ID FROM BUILDING;
+SELECT COUNT(ID) FROM BUILDING;
+SELECT DISTINCT(STATUS) FROM BUILDING;
+SELECT COUNT(DISTINCT(STATUS)) FROM BUILDING;
+SELECT * FROM BUILDING WHERE DATE_BUILD > '1995-01-01' AND STATUS='сдано';
+
+SELECT * FROM PERSON LEFT JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID;
+SELECT * FROM PERSON RIGHT JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID;
+SELECT * FROM PERSON INNER JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID;
+
+SELECT p.ID, p.FULL_NAME, b.ADDRESS FROM PERSON p LEFT JOIN BUILDING b ON p.ID = b.PERSON_ID WHERE b.PERSON_ID is null;
+SELECT * FROM PERSON RIGHT JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID WHERE BUILDING.PERSON_ID is null;
+SELECT * FROM BUILDING WHERE PERSON_ID is null;
+SELECT * FROM PERSON FULL JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID;
+
+-- Получить персон у которых здания построены в 1999 году
+SELECT * FROM PERSON LEFT JOIN BUILDING ON PERSON.ID = BUILDING.PERSON_ID WHERE DATE_BUILD >= '1999-01-01' AND DATE_BUILD <= '1999-12-31';
+
+-- Синтетический пример с несуществующей третьей таблицей
+SELECT * FROM PERSON 
+    LEFT JOIN 
+    (SELECT * FROM BUILDING RIGHT JOIN CADASTR ON BUILDING.ID = CADASTR.BUILDING_ID) AS cad 
+    ON PERSON.ID = cad.PERSON_ID;
\ No newline at end of file