CREATE TABLE [ext].[RcdClass01] ( [CodClass01] NVARCHAR (50) NOT NULL, [CodClass01Rcd] NVARCHAR (50) CONSTRAINT [DF_RcdClass_CodClassRcd] DEFAULT ('') NOT NULL, CONSTRAINT [PK_RcdClass] PRIMARY KEY CLUSTERED ([CodClass01] ASC) ); GO EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'codice cliente', @level0type = N'SCHEMA', @level0name = N'ext', @level1type = N'TABLE', @level1name = N'RcdClass01', @level2type = N'COLUMN', @level2name = N'CodClass01Rcd'; GO EXECUTE sp_addextendedproperty @name = N'MS_Description', @value = N'codice cliente', @level0type = N'SCHEMA', @level0name = N'ext', @level1type = N'TABLE', @level1name = N'RcdClass01', @level2type = N'COLUMN', @level2name = N'CodClass01';