MSG 306 ERROR

Question

I am getting a MSG 306 ERROR. I think it is because one field is 30 Characters and other field is TEXT. Just guessing. Here is the code,  error message and DDL.
Select SD.Sales_Order As [SO #]
,SD.SO_Line As [Ln]
    ,Cast(Min(SD.Status)   As Varchar(1)) As [SS] ---Ln Status
,MIN(SH.Sales_Rep) As [Rep]
,MIN(SH.Customer)  As [Cust ID]
,Min(SD.Material)  As [Material/Part Number]
,(Case when SD.Material like '%CUSTOM-SPECIAL%'              then SD.Ext_Description
              when SD.Material Not like '%CUSTOM-SPECIAL%'           then SD.Description
              else '' end) [Description]
,MIN(Case when PATINDEX('Ship complete', SH.Comment)>0       then 'SC'
              when PATINDEX('In CustomerID', SH.Comment)>0           then 'ICSL'
              when SH.Ship_Via = 'Cust Stock'                        then 'CSTK'
         when SH.Ship_Via = 'Install'                       then 'INST'
         when SD.Status = 'Hold'                            then 'HOLD'
         else '' end) [Txt]
,MIN(Case when PATINDEX('SO Given to Ron F', SH.Note_Text)>0 then 'RON F'
         when SD.Job IS null                                then ''
         When SD.Job IS Not null                            then SD.Job
         else '' end) [Linked]
,MIN(ISNULL(SD.PO,'')) As [PO]                      ---- Linked PO
,Cast(MIN(ISNULL(J.Status,''))As Varchar(1))As [St] ---- Job Status
,Cast(SUM((SD.Order_Qty - SD.Shipped_Qty) * (100 - SD.Discount_Pct) * SD.Unit_Price / 100) As Decimal(7,2)) As [Ext Amt]
,Min(SD.Order_Qty)As [Ord]
,Min(SD.Picked_Qty)As [Pick]
,MIN(SD.Backorder_Qty)As [BO]
,Cast(Min(SH.Order_Date) As Date) As [Ord Date]
,Min(M.Lead_Days)As [LD]
,Cast(Min(SD.Promised_Date) As Date) As [Promised]
from [PRODUCTION].dbo.SO_Detail As SD
INNER JOIN [PRODUCTION].dbo.SO_Header As SH
on SD.Sales_Order = SH.Sales_Order
and(SD.Status = 'Open' 
                or  SD.Status = 'Backorder'
                or  SD.Status = 'Hold' ) 
INNER JOIN [PRODUCTION].dbo.Material As M
on SD.Material = M.Material
LEFT OUTER JOIN [PRODUCTION].dbo.Job As J
On SD.Job = J.Job
Group by SD.Promised_Date, SD.Sales_Order, SD.SO_Line, SD.Description, SD.Ext_Description
Order by SD.Promised_Date, SD.Sales_Order, SD.SO_Line
ERROR MESSAGE
Msg 306, Level 16, State 2, Line 39
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator.
DDL
SO_DETAIL
USE [PRODUCTION]
GO
/****** Object:  Table [dbo].[SO_Detail]    Script Date: 05/06/2014 15:45:55 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[SO_Detail](
[SO_DetailKey] [dbo].[KeyNum] IDENTITY(1,1) NOT NULL,
[SO_Detail] [dbo].[KeyNum] NULL,
[Sales_Order] [dbo].[Key10] NOT NULL,
[SO_Line] [dbo].[T_6] NOT NULL,
[PO] [dbo].[Key8] NULL,
[Line] [dbo].[T_6] NULL,
[Material] [dbo].[T_30] NULL,
[Ship_To] [int] NULL,
[Drop_Ship] [bit] NOT NULL,
[Quote] [varchar](50) NULL,
[Job] [dbo].[Key10] NULL,
[Status] [dbo].[T_9] NOT NULL,
[Make_Buy] [dbo].[T_1] NOT NULL,
[Unit_Price] [float] NOT NULL,
[Discount_Pct] [float] NOT NULL,
[Price_UofM] [dbo].[UofM] NOT NULL,
[Total_Price] [money] NOT NULL,
[Deferred_Qty] [float] NOT NULL,
[Prepaid_Amt] [money] NOT NULL,
[Unit_Cost] [float] NOT NULL,
[Order_Qty] [float] NOT NULL,
[Stock_UofM] [dbo].[UofM] NOT NULL,
[Backorder_Qty] [float] NOT NULL,
[Picked_Qty] [float] NOT NULL,
[Shipped_Qty] [float] NOT NULL,
[Returned_Qty] [float] NOT NULL,
[Certs_Required] [bit] NOT NULL,
[Taxable] [bit] NOT NULL,
[Commissionable] [bit] NOT NULL,
[Commission_Pct] [float] NOT NULL,
[Sales_Code] [dbo].[T_UCode] NULL,
[Note_Text] [text] NULL,
[Promised_Date] [datetime] NULL,
[Last_Updated] [datetime] NOT NULL,
[Description] [dbo].[T_30] NULL,
[Price_Unit_Conv] [float] NULL,
[Rev] [dbo].[T_8] NULL,
[Tax_Code] [dbo].[T_15] NULL,
[Ext_Description] [text] NULL,
[Cost_UofM] [dbo].[T_4] NULL,
[Cost_Unit_Conv] [float] NULL,
[Res_Type] [smallint] NULL,
[Res_ID] [dbo].[T_50] NULL,
[Res_Qty] [float] NULL,
[Partial_Res] [bit] NULL,
[Prepaid_Trade_Amt] [money] NULL,
[ObjectID] [uniqueidentifier] NOT NULL,
 CONSTRAINT [PK_SO_Detail] PRIMARY KEY NONCLUSTERED 
[SO_DetailKey] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[SO_Detail]  WITH NOCHECK ADD  CONSTRAINT [FK_SOH_on_SODetl] FOREIGN KEY([Sales_Order])
REFERENCES [dbo].[SO_Header] ([Sales_Order])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[SO_Detail] NOCHECK CONSTRAINT [FK_SOH_on_SODetl]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Drop_Ship]  DEFAULT ((0)) FOR [Drop_Ship]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Status]  DEFAULT ('Open') FOR [Status]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Make_Buy]  DEFAULT ('M') FOR [Make_Buy]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Discount_Pct]  DEFAULT ((0)) FOR [Discount_Pct]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Price_UofM]  DEFAULT ('ea') FOR [Price_UofM]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Deferred_Qty]  DEFAULT ((0)) FOR [Deferred_Qty]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Prepaid_Amt]  DEFAULT ((0)) FOR [Prepaid_Amt]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Order_Qty]  DEFAULT ((0)) FOR [Order_Qty]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Backorder_Qty]  DEFAULT ((0)) FOR [Backorder_Qty]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Picked_Qty]  DEFAULT ((0)) FOR [Picked_Qty]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Certs_Required]  DEFAULT ((0)) FOR [Certs_Required]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Taxable]  DEFAULT ((0)) FOR [Taxable]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Commissionable]  DEFAULT ((0)) FOR [Commissionable]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Commission_Pct]  DEFAULT ((0)) FOR [Commission_Pct]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SO_Detail_Last_Updated]  DEFAULT (getdate()) FOR [Last_Updated]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  CONSTRAINT [DF_SODetail_PriceUofM]  DEFAULT ((1)) FOR [Price_Unit_Conv]
GO
ALTER TABLE [dbo].[SO_Detail] ADD  DEFAULT ((0)) FOR [Prepaid_Trade_Amt]
GO
SO_HEADER
USE [PRODUCTION]
GO
/****** Object:  Table [dbo].[SO_Header]    Script Date: 05/06/2014 15:46:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[SO_Header](
[Sales_Order] [dbo].[Key10] NOT NULL,
[Customer] [dbo].[Key10] NOT NULL,
[Ship_To] [dbo].[KeyNum] NULL,
[Contact] [dbo].[KeyNum] NULL,
[Sales_Rep] [dbo].[Key6] NULL,
[Order_Taken_By] [dbo].[Key6] NULL,
[Ship_Via] [dbo].[T_UCode] NULL,
[Tax_Code] [dbo].[T_UCode] NULL,
[Terms] [dbo].[T_UCode] NULL,
[Sales_Tax_Amt] [money] NOT NULL,
[Sales_Tax_Rate] [float] NOT NULL,
[Order_Date] [datetime] NOT NULL,
[Promised_Date] [datetime] NULL,
[Customer_PO] [dbo].[T_20] NULL,
[Status] [dbo].[T_8] NOT NULL,
[Total_Price] [money] NOT NULL,
[Currency_Conv_Rate] [float] NOT NULL,
[Trade_Currency] [dbo].[KeyNum] NULL,
[Fixed_Rate] [bit] NOT NULL,
[Trade_Date] [datetime] NULL,
[Note_Text] [text] NULL,
[Comment] [text] NULL,
[Last_Updated] [datetime] NOT NULL,
[User_Values] [int] NULL,
[Source] [dbo].[T_20] NULL,
[Prepaid_Tax_Amount] [money] NULL,
 CONSTRAINT [PK_SO_Header] PRIMARY KEY NONCLUSTERED 
[Sales_Order] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Sales_Tax_Amt]  DEFAULT ((0)) FOR [Sales_Tax_Amt]
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Sales_Tax_Rate]  DEFAULT ((0)) FOR [Sales_Tax_Rate]
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Total_Price]  DEFAULT ((0)) FOR [Total_Price]
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Currency_Conv_Rate]  DEFAULT ((1)) FOR [Currency_Conv_Rate]
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Fixed_Rate]  DEFAULT ((1)) FOR [Fixed_Rate]
GO
ALTER TABLE [dbo].[SO_Header] ADD  CONSTRAINT [DF_SO_Header_Last_Updated]  DEFAULT (getdate()) FOR [Last_Updated]
GO
ALTER TABLE [dbo].[SO_Header] ADD  DEFAULT ((0)) FOR [Prepaid_Tax_Amount]
GO
MATERIAL
USE [PRODUCTION]
GO
/****** Object:  Table [dbo].[Material]    Script Date: 05/06/2014 15:47:31 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Material](
[Material] [dbo].[Key30] NOT NULL,
[Primary_Vendor] [dbo].[Key10] NULL,
[User_Values] [dbo].[KeyNum] NULL,
[Shape] [dbo].[Key10] NULL,
[Location_ID] [dbo].[Key10] NOT NULL,
[Sales_Code] [dbo].[T_15] NULL,
[Description] [dbo].[T_30] NULL,
[Type] [dbo].[T_1] NOT NULL,
[Status] [dbo].[T_8] NOT NULL,
[Pick_Buy_Indicator] [dbo].[T_1] NOT NULL,
[Class] [varchar](10) NULL,
[Rev] [dbo].[T_8] NULL,
[Stocked_UofM] [dbo].[UofM] NOT NULL,
[Purchase_UofM] [dbo].[UofM] NOT NULL,
[Cost_UofM] [dbo].[UofM] NOT NULL,
[Price_UofM] [dbo].[UofM] NOT NULL,
[Selling_Price] [float] NULL,
[Standard_Cost] [float] NOT NULL,
[Average_Cost] [float] NULL,
[Last_Cost] [float] NULL,
[On_Order_Qty] [float] NULL,
[Order_Point] [float] NULL,
[Reorder_Qty] [float] NOT NULL,
[Lead_Days] [smallint] NOT NULL,
[UofM_Conv_Factor] [float] NOT NULL,
[Lot_Trace] [bit] NOT NULL,
[Rd_Whole_Unit] [bit] NOT NULL,
[Ext_Description] [text] NULL,
[Make_Buy] [dbo].[T_1] NOT NULL,
[Vendor_Reference] [dbo].[T_30] NULL,
[Drawing] [varchar](30) NULL,
[Use_Price_Breaks] [bit] NOT NULL,
[Note_Text] [text] NULL,
[Last_Updated] [datetime] NOT NULL,
[GL_Account] [dbo].[T_100] NULL,
[Price_Unit_Conv] [float] NULL,
[Holder_ID] [dbo].[T_50] NULL,
[Job] [dbo].[T_10] NULL,
[Tax_Code] [dbo].[T_15] NULL,
[Taxable] [bit] NULL,
[IS_Length] [float] NULL,
[IS_Width] [float] NULL,
[IS_Weight_Factor] [float] NULL,
[IS_Thickness] [float] NULL,
[Stock_Item] [dbo].[T_50] NULL,
[Affects_Schedule] [bit] NULL,
[ObjectID] [uniqueidentifier] NOT NULL,
[Shape_OID] [uniqueidentifier] NULL,
[Tooling] [bit] NULL,
[IsSerialized] [bit] NOT NULL,
[MaxUsage] [int] NULL,
[ShelfLife] [float] NULL,
[ShelfLifeUofM] [varchar](10) NULL,
 CONSTRAINT [PK_Material] PRIMARY KEY NONCLUSTERED 
[Material] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[Material]  WITH NOCHECK ADD  CONSTRAINT [FK_Loc_on_Matl] FOREIGN KEY([Location_ID])
REFERENCES [dbo].[Location] ([Location_ID])
GO
ALTER TABLE [dbo].[Material] NOCHECK CONSTRAINT [FK_Loc_on_Matl]
GO
ALTER TABLE [dbo].[Material]  WITH NOCHECK ADD  CONSTRAINT [FK_Shap_on_Matl] FOREIGN KEY([Shape])
REFERENCES [dbo].[Shapes] ([Shape])
GO
ALTER TABLE [dbo].[Material] NOCHECK CONSTRAINT [FK_Shap_on_Matl]
GO
ALTER TABLE [dbo].[Material]  WITH NOCHECK ADD  CONSTRAINT [FK_UVal_on_Matl] FOREIGN KEY([User_Values])
REFERENCES [dbo].[User_Values] ([User_Values])
GO
ALTER TABLE [dbo].[Material] NOCHECK CONSTRAINT [FK_UVal_on_Matl]
GO
ALTER TABLE [dbo].[Material]  WITH NOCHECK ADD  CONSTRAINT [FK_Vend_on_Matl] FOREIGN KEY([Primary_Vendor])
REFERENCES [dbo].[Vendor] ([Vendor])
GO
ALTER TABLE [dbo].[Material] NOCHECK CONSTRAINT [FK_Vend_on_Matl]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Selling_Price]  DEFAULT ((0)) FOR [Selling_Price]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Standard_Cost]  DEFAULT ((0)) FOR [Standard_Cost]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Average_Cost]  DEFAULT ((0)) FOR [Average_Cost]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Last_Cost]  DEFAULT ((0)) FOR [Last_Cost]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_On_Order_Qty]  DEFAULT ((0)) FOR [On_Order_Qty]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Order_Point]  DEFAULT ((0)) FOR [Order_Point]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Reorder_Qty]  DEFAULT ((0)) FOR [Reorder_Qty]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Lead_Days]  DEFAULT ((0)) FOR [Lead_Days]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_UofM_Conv_Factor]  DEFAULT ((0)) FOR [UofM_Conv_Factor]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Lot_Trace]  DEFAULT ((0)) FOR [Lot_Trace]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Rd_Whole_Unit]  DEFAULT ((0)) FOR [Rd_Whole_Unit]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Use_Price_Break]  DEFAULT ((0)) FOR [Use_Price_Breaks]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_Last_Updated]  DEFAULT (getdate()) FOR [Last_Updated]
GO
ALTER TABLE [dbo].[Material] ADD  CONSTRAINT [DF_Material_PriceUofM]  DEFAULT ((1)) FOR [Price_Unit_Conv]
GO
ALTER TABLE [dbo].[Material] ADD  DEFAULT ((0)) FOR [IsSerialized]
GO
ALTER TABLE [dbo].[Material] ADD  DEFAULT ((0)) FOR [MaxUsage]
GO
ALTER TABLE [dbo].[Material] ADD  DEFAULT ((0)) FOR [ShelfLife]
GO
JOB
USE [PRODUCTION]
GO
/****** Object:  Table [dbo].[Job]    Script Date: 05/06/2014 15:50:24 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Job](
[Job] [dbo].[Key10] NOT NULL,
[Sales_Rep] [dbo].[Key6] NULL,
[Customer] [dbo].[Key10] NULL,
[Ship_To] [dbo].[KeyNum] NULL,
[User_Values] [dbo].[KeyNum] NULL,
[Quote] [dbo].[Key10] NULL,
[Contact] [dbo].[KeyNum] NULL,
[Ship_Via] [dbo].[T_15] NULL,
[Terms] [dbo].[T_15] NULL,
[Tax_Code] [dbo].[T_15] NULL,
[Sales_Code] [dbo].[T_15] NULL,
[Top_Lvl_Job] [dbo].[T_10] NULL,
[Type] [dbo].[T_8] NOT NULL,
[Order_Date] [datetime] NOT NULL,
[Status] [dbo].[T_8] NOT NULL,
[Status_Date] [datetime] NOT NULL,
[Part_Number] [dbo].[T_30] NULL,
[Rev] [dbo].[T_10] NULL,
[Description] [dbo].[T_30] NULL,
[Ext_Description] [text] NULL,
[Drawing] [varchar](30) NULL,
[Build_To_Stock] [bit] NOT NULL,
[Order_Quantity] [int] NOT NULL,
[Extra_Quantity] [int] NULL,
[Pick_Quantity] [int] NULL,
[Make_Quantity] [int] NOT NULL,
[Split_Quantity] [int] NULL,
[Completed_Quantity] [int] NULL,
[Shipped_Quantity] [int] NULL,
[FG_Transfer_Qty] [int] NULL,
[Returned_Quantity] [int] NULL,
[In_Production_Quantity] [int] NOT NULL,
[Assembly_Level] [smallint] NULL,
[Certs_Required] [bit] NOT NULL,
[Time_And_Materials] [bit] NOT NULL,
[Open_Operations] [smallint] NULL,
[Scrap_Pct] [float] NOT NULL,
[Est_Scrap_Qty] [int] NULL,
[Est_Rem_Hrs] [float] NULL,
[Est_Total_Hrs] [float] NULL,
[Est_Labor] [money] NULL,
[Est_Material] [money] NULL,
[Est_Service] [money] NULL,
[Est_Labor_Burden] [money] NULL,
[Est_Machine_Burden] [money] NULL,
[Est_GA_Burden] [money] NULL,
[Act_Revenue] [money] NULL,
[Act_Scrap_Quantity] [int] NULL,
[Act_Total_Hrs] [float] NULL,
[Act_Labor] [money] NULL,
[Act_Material] [money] NULL,
[Act_Service] [money] NULL,
[Act_Labor_Burden] [money] NULL,
[Act_Machine_Burden] [money] NULL,
[Act_GA_Burden] [money] NULL,
[Priority] [smallint] NULL,
[Unit_Price] [float] NULL,
[Total_Price] [money] NULL,
[Price_UofM] [dbo].[T_4] NULL,
[Currency_Conv_Rate] [float] NOT NULL,
[Trade_Currency] [dbo].[KeyNum] NULL,
[Fixed_Rate] [bit] NOT NULL,
[Trade_Date] [datetime] NULL,
[Commission_Pct] [float] NULL,
[Customer_PO] [dbo].[T_20] NULL,
[Customer_PO_LN] [dbo].[T_6] NULL,
[Sched_End] [datetime] NULL,
[Sched_Start] [datetime] NULL,
[Quantity_Per] [float] NULL,
[Profit_Pct] [float] NULL,
[Labor_Markup_Pct] [float] NOT NULL,
[Mat_Markup_Pct] [float] NOT NULL,
[Serv_Markup_Pct] [float] NOT NULL,
[Labor_Burden_Markup_Pct] [float] NOT NULL,
[Machine_Burden_Markup_Pct] [float] NOT NULL,
[GA_Burden_Markup_Pct] [float] NOT NULL,
[Lead_Days] [smallint] NULL,
[Profit_Markup] [dbo].[T_1] NULL,
[Prepaid_Amt] [money] NULL,
[Split_To_Job] [bit] NOT NULL,
[Note_Text] [text] NULL,
[Comment] [text] NULL,
[Last_Updated] [datetime] NOT NULL,
[Order_Unit] [dbo].[T_4] NULL,
[Price_Unit_Conv] [float] NULL,
[Holder_ID] [dbo].[T_50] NULL,
[Source] [dbo].[T_20] NULL,
[Order_Taken_By] [dbo].[T_50] NULL,
[Plan_Modified] [bit] NULL,
[ObjectID] [uniqueidentifier] NOT NULL,
[Released_Date] [datetime] NULL,
[Prepaid_Tax_Amount] [money] NULL,
[Prepaid_Trade_Amt] [money] NULL,
[Last_Updated_By] [dbo].[T_50] NULL,
 CONSTRAINT [PK_Job] PRIMARY KEY NONCLUSTERED 
[Job] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON, FILLFACTOR = 90) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[Job]  WITH NOCHECK ADD  CONSTRAINT [FK_Addr_on_Job] FOREIGN KEY([Ship_To])
REFERENCES [dbo].[Address] ([Address])
GO
ALTER TABLE [dbo].[Job] NOCHECK CONSTRAINT [FK_Addr_on_Job]
GO
ALTER TABLE [dbo].[Job]  WITH NOCHECK ADD  CONSTRAINT [FK_Cust_on_Job] FOREIGN KEY([Customer])
REFERENCES [dbo].[Customer] ([Customer])
GO
ALTER TABLE [dbo].[Job] NOCHECK CONSTRAINT [FK_Cust_on_Job]
GO
ALTER TABLE [dbo].[Job]  WITH NOCHECK ADD  CONSTRAINT [FK_Empl_on_Job] FOREIGN KEY([Sales_Rep])
REFERENCES [dbo].[Employee] ([Employee])
GO
ALTER TABLE [dbo].[Job] NOCHECK CONSTRAINT [FK_Empl_on_Job]
GO
ALTER TABLE [dbo].[Job]  WITH NOCHECK ADD  CONSTRAINT [FK_UVal_on_Job] FOREIGN KEY([User_Values])
REFERENCES [dbo].[User_Values] ([User_Values])
GO
ALTER TABLE [dbo].[Job] NOCHECK CONSTRAINT [FK_UVal_on_Job]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Build_To_Stock]  DEFAULT ((0)) FOR [Build_To_Stock]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Order_Quantity]  DEFAULT ((0)) FOR [Order_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Extra_Quantity]  DEFAULT ((0)) FOR [Extra_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Pick_Quantity]  DEFAULT ((0)) FOR [Pick_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Make_Quantity]  DEFAULT ((0)) FOR [Make_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Split_Quantity]  DEFAULT ((0)) FOR [Split_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Completed_Quantity]  DEFAULT ((0)) FOR [Completed_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Shipped_Quantity]  DEFAULT ((0)) FOR [Shipped_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_FG_Transfer_Qty]  DEFAULT ((0)) FOR [FG_Transfer_Qty]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Returned_Quantity]  DEFAULT ((0)) FOR [Returned_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_In_Production_Quantity]  DEFAULT ((0)) FOR [In_Production_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Assembly_Level]  DEFAULT ((0)) FOR [Assembly_Level]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Certs_Required]  DEFAULT ((0)) FOR [Certs_Required]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Time_And_Materials]  DEFAULT ((0)) FOR [Time_And_Materials]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Open_Operations]  DEFAULT ((0)) FOR [Open_Operations]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Scrap_Pct]  DEFAULT ((0)) FOR [Scrap_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Scrap_Qty]  DEFAULT ((0)) FOR [Est_Scrap_Qty]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Rem_Hrs]  DEFAULT ((0)) FOR [Est_Rem_Hrs]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Total_Hrs]  DEFAULT ((0)) FOR [Est_Total_Hrs]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Labor]  DEFAULT ((0)) FOR [Est_Labor]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Material]  DEFAULT ((0)) FOR [Est_Material]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Service]  DEFAULT ((0)) FOR [Est_Service]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Labor_Burden]  DEFAULT ((0)) FOR [Est_Labor_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_Machine_Burden]  DEFAULT ((0)) FOR [Est_Machine_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Est_GA_Burden]  DEFAULT ((0)) FOR [Est_GA_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Revenue]  DEFAULT ((0)) FOR [Act_Revenue]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Scrap_Quantity]  DEFAULT ((0)) FOR [Act_Scrap_Quantity]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Total_Hrs]  DEFAULT ((0)) FOR [Act_Total_Hrs]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Labor]  DEFAULT ((0)) FOR [Act_Labor]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Material]  DEFAULT ((0)) FOR [Act_Material]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Service]  DEFAULT ((0)) FOR [Act_Service]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Labor_Burden]  DEFAULT ((0)) FOR [Act_Labor_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_Machine_Burden]  DEFAULT ((0)) FOR [Act_Machine_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Act_GA_Burden]  DEFAULT ((0)) FOR [Act_GA_Burden]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Priority]  DEFAULT ((5)) FOR [Priority]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Unit_Price]  DEFAULT ((0)) FOR [Unit_Price]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Total_Price]  DEFAULT ((0)) FOR [Total_Price]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Currency_Conv_Rate]  DEFAULT ((1)) FOR [Currency_Conv_Rate]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Fixed_Rate]  DEFAULT ((1)) FOR [Fixed_Rate]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Commission_Pct]  DEFAULT ((0)) FOR [Commission_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Quantity_Per]  DEFAULT ((1)) FOR [Quantity_Per]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Profit_Pct]  DEFAULT ((0)) FOR [Profit_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Labor_Markup_Pct]  DEFAULT ((0)) FOR [Labor_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Mat_Markup_Pct]  DEFAULT ((0)) FOR [Mat_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Serv_Markup_Pct]  DEFAULT ((0)) FOR [Serv_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Labor_Burden_Markup_Pct]  DEFAULT ((0)) FOR [Labor_Burden_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Machine_Burden_Markup_Pct]  DEFAULT ((0)) FOR [Machine_Burden_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_GA_Burden_Markup_Pct]  DEFAULT ((0)) FOR [GA_Burden_Markup_Pct]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Lead_Days]  DEFAULT ((0)) FOR [Lead_Days]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Prepaid_Amt]  DEFAULT ((0)) FOR [Prepaid_Amt]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Split_To_Job]  DEFAULT ((0)) FOR [Split_To_Job]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_Job_Last_Updated]  DEFAULT (getdate()) FOR [Last_Updated]
GO
ALTER TABLE [dbo].[Job] ADD  CONSTRAINT [DF_JOB_PriceUofM]  DEFAULT ((1)) FOR [Price_Unit_Conv]
GO
ALTER TABLE [dbo].[Job] ADD  DEFAULT ((0)) FOR [Prepaid_Tax_Amount]
GO
ALTER TABLE [dbo].[Job] ADD  DEFAULT ((0)) FOR [Prepaid_Trade_Amt]
GO
SWProduction

Answer 1

1.The best solution is not to use text, ntext, and image data types
If you can, it is highly rcommend to fix the tables structure
2. we can not use your DDL since it is not complete. Your table create query include data type that we dont have like:
CREATE TABLE [dbo].[SO_Detail](
[SO_DetailKey] [dbo].[KeyNum] IDENTITY(1,1) NOT NULL,...
Therefore we can not check your specific situation :-(
3. If you have to use text, ntext data types then
* Read this old blog (Not related to you corent problem but you should know this!): SQL Server support NTEXT/TEXT, but SSMS does not
http://ariely.info/Blog/tabid/83/EntryId/120/SQL-Server-support-NTEXT-TEXT-but-SSMS-does-not.aspx
* As v.vt wrote, Convert the data in the query from TEXT/NTEXT into VARCHAR/NVARCHAR and the query should work OK
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