diff --git a/.idea/count_skills.py b/.idea/count_skills.py
new file mode 100644
index 0000000..7c3f471
--- /dev/null
+++ b/.idea/count_skills.py
@@ -0,0 +1,10 @@
+cursor.execute('SELECT COUNT(*) FROM works where skills not null')
+print(cursor.fetchall()[0][0])
+
+# Получить заполненные скиллы.
+cursor.execute('SELECT skills FROM works where skills not null')
+print(cursor.fetchall())
+
+# Вывести зарплату только у тех, у кого в скилах есть Python
+cursor.execute('SELECT salary FROM works where skills LIKE "%Python%"')
+print(cursor.fetchall())
\ No newline at end of file
diff --git a/.idea/dz.py b/.idea/dz.py
new file mode 100644
index 0000000..06844ac
--- /dev/null
+++ b/.idea/dz.py
@@ -0,0 +1,66 @@
+import numpy as np
+import pandas as pd
+import sqlite3
+import matplotlib.pyplot as plt
+import re
+
+
+def get_clean_field(field):
+    return re.sub(r'\<[^>]*\>', '', str(field))
+
+fail = sqlite3.connect('works.sqlite')
+cursor = fail.cursor()
+cursor.execute('удалить таблицу, если она существует')
+cursor.execute('create table works ('
+               'ID INTEGER PRIMARY KEY AUTOINCREMENT,'
+               'salary INTEGER,'
+               'educationType TEXT,'
+               'jobTitle TEXT,'
+               'qualification TEXT,'
+               'gender TEXT,'
+               'dateModify TEXT,'
+               'skills TEXT,'
+               'otherInfo TEXT)')
+fail.commit()
+
+read_fail = pd.read_csv("works.csv")
+read_fail['skills'] = read_fail['skills'].apply(get_clean_field)
+read_fail['otherInfo'] = read_fail['otherInfo'].apply(get_clean_field)
+read_fail.to_sql("works", fail, if_exists='append', index=False)
+fail.commit()
+
+
+# ДЗ
+cursor.execute('удалить таблицу, если существуют гендерные категории')
+cursor.execute('create table genders(id integer primary key autoincrement, gender_val)')
+fail.commit()
+
+cursor.execute('insert into genders(gender_val) select distinct gender from works where gender is not null')
+fail.commit()
+
+cursor.execute('alter table works add column gender_id integer references genders(id)')
+fail.commit()
+
+cursor.execute('update works set gender_id = (select id from genders where gender_val = works.gender)')
+fail.commit()
+
+cursor.execute('table works drop column gender')
+fail.commit()
+
+
+
+cursor.execute('удалить таблицу, если существует образование')
+cursor.execute('create table education(id integer primary key autoincrement, education_val text)')
+fail.commit()
+
+cursor.execute('insert into education(education_val) select distinct educationType from works where educationType is not null')
+fail.commit()
+
+cursor.execute('alter table works add column educationType_id integer references education(id)')
+fail.commit()
+
+cursor.execute('update works set educationType_id = (select id from genders where education_val = works.educationType)')
+fail.commit()
+
+cursor.execute('table works drop column educationType')
+fail.commit()
\ No newline at end of file
diff --git a/.idea/men_women_zp.py b/.idea/men_women_zp.py
new file mode 100644
index 0000000..5b0cb47
--- /dev/null
+++ b/.idea/men_women_zp.py
@@ -0,0 +1,5 @@
+plt.plot(np.linspace(0.1, 1, 10), m_salary)
+plt.plot(np.linspace(0.1, 1, 10), w_salary)
+plt.xlabel("Перцентили")
+plt.ylabel("Зарплата")
+plt.show()
\ No newline at end of file
diff --git a/.idea/para.py b/.idea/para.py
new file mode 100644
index 0000000..1c354de
--- /dev/null
+++ b/.idea/para.py
@@ -0,0 +1,14 @@
+cursor.execute('create index salary_index on works (salary)')
+con.commit()
+
+# количество всех записей
+ursor.execute('SELECT COUNT(*) FROM works')
+print(cursor.fetchall()[0][0])
+
+# men
+cursor.execute('SELECT COUNT(*) FROM works where gender = "Мужской"')
+print(cursor.fetchall()[0][0])
+
+# women
+cursor.execute('SELECT COUNT(*) FROM works where gender = "Женский"')
+print(cursor.fetchall()[0][0])
\ No newline at end of file
diff --git a/.idea/para_2sposob.py b/.idea/para_2sposob.py
new file mode 100644
index 0000000..71fcea5
--- /dev/null
+++ b/.idea/para_2sposob.py
@@ -0,0 +1,2 @@
+cursor.execute('SELECT gender, COUNT(*) FROM works group by gender')
+print(cursor.fetchall())
\ No newline at end of file
diff --git a/.idea/works.sqlite b/.idea/works.sqlite
new file mode 100644
index 0000000..331a6bb
--- /dev/null
+++ b/.idea/works.sqlite
@@ -0,0 +1,7 @@
+SELECT * FROM 'education' LIMIT 0,30
+
+SELECT * FROM 'genders' LIMIT 0,30
+
+SELECT * FROM 'sqlite_sequence' LIMIT 0,30
+
+SELECT * FROM 'works' LIMIT 0,30