diff --git a/Workshop/Repositories/Implementations/ConnectionString.cs b/Workshop/Repositories/Implementations/ConnectionString.cs
index 5ebf385..6b21474 100644
--- a/Workshop/Repositories/Implementations/ConnectionString.cs
+++ b/Workshop/Repositories/Implementations/ConnectionString.cs
@@ -9,5 +9,5 @@ namespace Workshop.Repositories.Implementations;
 
 public class ConnectionString : IConnectionString
 {
-    string IConnectionString.ConnectionString => "Server=localhost;Port=5432;Database=grishazagidulin;User Id=grishazagidulin;Password=;";
+    string IConnectionString.ConnectionString => "Server=10.211.55.2;Port=5432;Database=grishazagidulin;Username=grishazagidulin;Password=;";
 }
diff --git a/Workshop/Repositories/Implementations/MasterRepository.cs b/Workshop/Repositories/Implementations/MasterRepository.cs
index a7cf357..791c054 100644
--- a/Workshop/Repositories/Implementations/MasterRepository.cs
+++ b/Workshop/Repositories/Implementations/MasterRepository.cs
@@ -31,7 +31,9 @@ internal class MasterRepository : IMasterRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryInsert = @"";
+            var queryInsert = @"
+INSERT INTO MASTER (Name, LastName, Age, Position)
+VALUES (@Name, @LastName, @Age, @Position)";
             connection.Execute(queryInsert, master);
         }
         catch (Exception ex)
@@ -48,7 +50,9 @@ internal class MasterRepository : IMasterRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryDelete = @"";
+            var queryDelete = @"
+DELETE FROM MASTER
+WHERE Id=@id";
             connection.Execute(queryDelete, new { id });
         }
         catch (Exception ex)
@@ -65,7 +69,9 @@ internal class MasterRepository : IMasterRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = @"";
+            var querySelect = @"
+SELECT * FROM MASTER
+WHERE Id=@id";
             var master = connection.QueryFirst<Master>(querySelect, new { id });
             _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(master));
             return master;
@@ -83,7 +89,7 @@ internal class MasterRepository : IMasterRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = "";
+            var querySelect = "SELECT * FROM MASTER";
             var masters = connection.Query<Master>(querySelect);
             _logger.LogDebug("Полученные объекты: {json}", JsonConvert.SerializeObject(masters));
             return masters;
@@ -105,7 +111,14 @@ internal class MasterRepository : IMasterRepository
         {
             using var connection = new
             NpgsqlConnection(_connectionString.ConnectionString);
-            var queryUpdate = @"";
+            var queryUpdate = @"
+UPDATE MASTER
+SET
+    Name=@Name,
+    LastName=@LastName,
+    Age=@Age,
+    Position=@Position
+WHERE [Id]=@Id";
             connection.Execute(queryUpdate, master);
         }
         catch (Exception ex)
diff --git a/Workshop/Repositories/Implementations/MaterialRepository.cs b/Workshop/Repositories/Implementations/MaterialRepository.cs
index 7e3d4a5..ce77517 100644
--- a/Workshop/Repositories/Implementations/MaterialRepository.cs
+++ b/Workshop/Repositories/Implementations/MaterialRepository.cs
@@ -31,7 +31,9 @@ internal class MaterialRepository : IMaterialRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryInsert = @"";
+            var queryInsert = @"
+INSERT INTO MATERIAL (Name, WarehouseAmount, Price)
+VALUES (@Name, @WarehouseAmount, @Price)";
             connection.Execute(queryInsert, material);
         }
         catch (Exception ex)
@@ -48,7 +50,9 @@ internal class MaterialRepository : IMaterialRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryDelete = @"";
+            var queryDelete = @"
+DELETE FROM MATERIAL
+WHERE Id=@id";
             connection.Execute(queryDelete, new { id });
         }
         catch (Exception ex)
@@ -65,7 +69,9 @@ internal class MaterialRepository : IMaterialRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = @"";
+            var querySelect = @"
+SELECT * FROM MATERIAL
+WHERE Id=@id";
             var material = connection.QueryFirst<Material>(querySelect, new { id });
             _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(material));
             return material;
@@ -83,7 +89,7 @@ internal class MaterialRepository : IMaterialRepository
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = "";
+            var querySelect = "SELECT * FROM MATERIAL";
             var materials = connection.Query <Material>(querySelect);
             _logger.LogDebug("Полученные объекты: {json}", JsonConvert.SerializeObject(materials));
             return materials;
@@ -105,7 +111,13 @@ internal class MaterialRepository : IMaterialRepository
         {
             using var connection = new
             NpgsqlConnection(_connectionString.ConnectionString);
-            var queryUpdate = @"";
+            var queryUpdate = @"
+UPDATE MATERIAL
+SET
+    Name=@Name,
+    WarehouseAmount=@WarehouseAmount,
+    Price=@Price
+WHERE [Id]=@Id";
             connection.Execute(queryUpdate, material);
         }
         catch (Exception ex)
diff --git a/Workshop/Repositories/Implementations/ProductRepository.cs b/Workshop/Repositories/Implementations/ProductRepository.cs
index b44feab..5817790 100644
--- a/Workshop/Repositories/Implementations/ProductRepository.cs
+++ b/Workshop/Repositories/Implementations/ProductRepository.cs
@@ -33,9 +33,14 @@ JsonConvert.SerializeObject(product));
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
             connection.Open();
             using var transaction = connection.BeginTransaction();
-            var queryInsert = @"";
+            var queryInsert = @"
+INSERT INTO PRODUCT (Name, Price, WarehouseAmount, Type)
+VALUES (@Name, @Price, @WarehouseAmount, @Category);
+SELECT MAX(Id) FROM PRODUCT";
             var productId = connection.QueryFirst<int>(queryInsert, product, transaction);
-            var querySubInsert = @"";
+            var querySubInsert = @"
+INSERT INTO PRODUCT_MATERIAL (ProductID, MaterialID, Count)
+VALUES (@ProductId, @MaterialId, @Count)";
             foreach (var elem in product.Materials)
             {
                 connection.Execute(querySubInsert, new { productId, elem.ProductId, elem.Count });
@@ -55,7 +60,9 @@ JsonConvert.SerializeObject(product));
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryDelete = @"";
+            var queryDelete = @"
+DELETE FROM PRODUCT
+WHERE Id=@id";
             connection.Execute(queryDelete, new { id });
         }
         catch (Exception ex)
@@ -73,7 +80,9 @@ JsonConvert.SerializeObject(product));
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = @"";
+            var querySelect = @"
+SELECT * FROM PRODUCT
+WHERE Id=@id";
             var product = connection.QueryFirst<Product>(querySelect, new { id });
             _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(product));
             return product;
@@ -91,7 +100,7 @@ JsonConvert.SerializeObject(product));
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var querySelect = "";
+            var querySelect = "SELECT * FROM PRODUCT";
             var products = connection.Query<Product>(querySelect);
             _logger.LogDebug("Полученные объекты: {json}", JsonConvert.SerializeObject(products));
             return products;
@@ -112,7 +121,14 @@ JsonConvert.SerializeObject(product));
         try
         {
             using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
-            var queryUpdate = @"";
+            var queryUpdate = @"
+UPDATE PRODUCT
+SET
+    Name=@Name,
+    Price=@Price,
+    WarehouseAmount=@WarehouseAmount,
+    Category=@Category
+WHERE [Id]=@Id";
             connection.Execute(queryUpdate, product);
         }
         catch (Exception ex)