IF EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'[dbo].[PRC_EMP_PROC_PRECO_TRANSFERENCIA]') AND name = N'IX_PRC_EMP_PROC_PRECO_TRANSFERENCIA')
BEGIN
	ALTER TABLE [dbo].[PRC_EMP_PROC_PRECO_TRANSFERENCIA] DROP CONSTRAINT [IX_PRC_EMP_PROC_PRECO_TRANSFERENCIA]
END