diff --git a/2labOTP.sql b/2labOTP.sql
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index 0000000..1ee649d
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+++ b/2labOTP.sql
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+-- Таблица Teacher
+CREATE TABLE Teacher (
+    ID SERIAL PRIMARY KEY,
+    Surname VARCHAR(255) NOT NULL,
+    Name VARCHAR(255) NOT NULL,
+    MiddleName VARCHAR(255)
+);
+
+-- Таблица Group
+CREATE TABLE "Group" (
+    ID SERIAL PRIMARY KEY,
+    Name VARCHAR(255) NOT NULL,
+    Type INT NOT NULL
+);
+
+-- Таблица Student
+CREATE TABLE Student (
+    ID SERIAL PRIMARY KEY,
+    Surname VARCHAR(255) NOT NULL,
+    Name VARCHAR(255) NOT NULL,
+    MiddleName VARCHAR(255),
+    GroupID INT NOT NULL REFERENCES "Group"(ID) ON DELETE CASCADE
+);
+
+-- Таблица Discipline
+CREATE TABLE Discipline (
+    ID SERIAL PRIMARY KEY,
+    Name VARCHAR(255) NOT NULL,
+    Description TEXT NOT NULL,
+    Courses INT NOT NULL,
+    TeacherId INT NOT NULL REFERENCES Teacher(ID) ON DELETE CASCADE
+);
+
+
+-- Таблица Statement
+CREATE TABLE Statement (
+    ID SERIAL PRIMARY KEY,
+    TeacherId INT NOT NULL REFERENCES Teacher(ID) ON DELETE CASCADE,
+    DisciplineId INT NOT NULL REFERENCES Discipline(ID) ON DELETE CASCADE,
+    Date DATE NOT NULL
+);
+
+-- Таблица StatementStudent (многие ко многим)
+CREATE TABLE StatementStudent (
+    ID SERIAL PRIMARY KEY,
+    StudentId INT NOT NULL REFERENCES Student(ID) ON DELETE CASCADE,
+    StatementId INT NOT NULL REFERENCES Statement(ID) ON DELETE CASCADE,
+    Mark INT NOT NULL
+);
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