feat(bd): V019 crea dbo.ProductPrices + SP + índices (PRD-003)

database/migrations/V019_ROLLBACK.sql

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+-- V019_ROLLBACK.sql
+-- PRD-003: Reversa de V019__create_product_prices.sql.
+--
+-- Pasos:
+--   1. Deshabilita SYSTEM_VERSIONING en dbo.ProductPrices (requerido antes de DROP TABLE).
+--   2. Elimina el PERIOD FOR SYSTEM_TIME y las columnas hidden SysStartTime/SysEndTime.
+--   3. Drop de dbo.ProductPrices_History.
+--   4. Drop de dbo.ProductPrices (y sus constraints + índices en cascada).
+--   5. Drop de dbo.usp_AddProductPrice.
+--
+-- ADVERTENCIA: destruye todo el historial de precios. Ejecutar sólo en DEV o TEST.
+-- Run on: SIGCM2 (dev), SIGCM2_Test_App, SIGCM2_Test_Api.
+
+SET QUOTED_IDENTIFIER ON;
+SET ANSI_NULLS ON;
+SET NOCOUNT ON;
+GO
+
+-- 1. Deshabilita SYSTEM_VERSIONING (imprescindible antes de DROP TABLE temporal).
+IF EXISTS (SELECT 1 FROM sys.tables WHERE object_id = OBJECT_ID('dbo.ProductPrices') AND temporal_type = 2)
+BEGIN
+    ALTER TABLE dbo.ProductPrices SET (SYSTEM_VERSIONING = OFF);
+    PRINT 'ProductPrices: SYSTEM_VERSIONING = OFF.';
+END
+GO
+
+-- 2. Elimina el PERIOD y las hidden cols (si existen, independientemente del versioning).
+IF COL_LENGTH('dbo.ProductPrices', 'SysStartTime') IS NOT NULL
+BEGIN
+    ALTER TABLE dbo.ProductPrices
+    DROP PERIOD FOR SYSTEM_TIME;
+
+    -- Drop default constraints antes de drop de columnas.
+    IF EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_ProductPrices_SysStartTime')
+        ALTER TABLE dbo.ProductPrices DROP CONSTRAINT DF_ProductPrices_SysStartTime;
+    IF EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_ProductPrices_SysEndTime')
+        ALTER TABLE dbo.ProductPrices DROP CONSTRAINT DF_ProductPrices_SysEndTime;
+
+    ALTER TABLE dbo.ProductPrices DROP COLUMN SysStartTime;
+    ALTER TABLE dbo.ProductPrices DROP COLUMN SysEndTime;
+    PRINT 'ProductPrices: PERIOD + hidden cols dropped.';
+END
+GO
+
+-- 3. Drop de la history table.
+IF OBJECT_ID(N'dbo.ProductPrices_History', N'U') IS NOT NULL
+BEGIN
+    DROP TABLE dbo.ProductPrices_History;
+    PRINT 'Table dbo.ProductPrices_History dropped.';
+END
+GO
+
+-- 4. Drop de la tabla principal (constraints + índices en cascada).
+IF OBJECT_ID(N'dbo.ProductPrices', N'U') IS NOT NULL
+BEGIN
+    DROP TABLE dbo.ProductPrices;
+    PRINT 'Table dbo.ProductPrices dropped.';
+END
+GO
+
+-- 5. Drop del SP.
+IF OBJECT_ID(N'dbo.usp_AddProductPrice', N'P') IS NOT NULL
+BEGIN
+    DROP PROCEDURE dbo.usp_AddProductPrice;
+    PRINT 'Procedure dbo.usp_AddProductPrice dropped.';
+END
+GO
+
+PRINT '';
+PRINT 'V019 rollback complete — dbo.ProductPrices, dbo.ProductPrices_History, dbo.usp_AddProductPrice removed.';
+GO