littleshop/CreateMultiBuysTable.cs

using Microsoft.Data.Sqlite;
using System;

class Program
{
    static void Main()
    {
        var connectionString = "Data Source=C:\\Production\\Source\\LittleShop\\LittleShop\\littleshop.db";

        using (var connection = new SqliteConnection(connectionString))
        {
            connection.Open();

            var createTableSql = @"
                CREATE TABLE IF NOT EXISTS ProductMultiBuys (
                    Id TEXT PRIMARY KEY NOT NULL,
                    ProductId TEXT NOT NULL,
                    Name TEXT NOT NULL,
                    Description TEXT NOT NULL DEFAULT '',
                    Quantity INTEGER NOT NULL,
                    Price REAL NOT NULL,
                    PricePerUnit REAL NOT NULL,
                    SortOrder INTEGER NOT NULL DEFAULT 0,
                    IsActive INTEGER NOT NULL DEFAULT 1,
                    CreatedAt TEXT NOT NULL,
                    UpdatedAt TEXT NOT NULL,
                    FOREIGN KEY (ProductId) REFERENCES Products(Id) ON DELETE CASCADE
                )";

            using (var command = new SqliteCommand(createTableSql, connection))
            {
                command.ExecuteNonQuery();
                Console.WriteLine("ProductMultiBuys table created successfully!");
            }

            // Create indexes
            var createIndexSql1 = "CREATE INDEX IF NOT EXISTS IX_ProductMultiBuys_ProductId ON ProductMultiBuys(ProductId)";
            var createIndexSql2 = "CREATE INDEX IF NOT EXISTS IX_ProductMultiBuys_IsActive ON ProductMultiBuys(IsActive)";

            using (var command = new SqliteCommand(createIndexSql1, connection))
            {
                command.ExecuteNonQuery();
            }

            using (var command = new SqliteCommand(createIndexSql2, connection))
            {
                command.ExecuteNonQuery();
            }

            Console.WriteLine("Indexes created successfully!");
        }
    }
}