if not exists(select 1 from syscolumns where id = object_id('RC_CLI_CONV_PBM') and name = 'TP_DESC_PRECO')
begin
	ALTER TABLE RC_CLI_CONV_PBM ADD TP_DESC_PRECO INT NULL;
	ALTER TABLE RC_CLI_CONV_PBM ADD CONSTRAINT  DF_RC_CLI_CONV_PBM_TP_DESC_PRECO DEFAULT (0) FOR TP_DESC_PRECO;
end