IF OBJECT_ID(N'dbo.HJGL_DrawingInfo', N'U') IS NULL
BEGIN
    CREATE TABLE dbo.HJGL_DrawingInfo
    (
        DrawingInfoId NVARCHAR(50) NOT NULL,
        AttachFileId NVARCHAR(50) NOT NULL,
        DrawingName NVARCHAR(255) NULL,
        DrawingJson NVARCHAR(MAX) NULL,
        CONSTRAINT PK_HJGL_DrawingInfo PRIMARY KEY (DrawingInfoId)
    );
END;