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A few questions and discoveries.

I am using 2.0.1GA on XP(SP3)

1) The Check constraint Count > 0 on the Cost column is working fine and generating this script:

create table Product (
ProductId INT IDENTITY NOT NULL,
Name NVARCHAR(50) not null,
Cost REAL null check( Cost > 0) ,
primary key (ProductId)
)

2) Mapped columns of type string are creating nvarchar fields. So the view filter of =’Yo-Yo’ gets converted to ‘N Yo-Yo’. All string columns get converted to nvarchar. Can this default be changed to varchar?

3) Creating the unique, unique-key and PK keys using schemaExport.Executegenerate keys with values ending in numbers like PK__Customer__09746778 and UC__Customer__0A688BB1. Can this naming be changed like the foreign-keys?

Thanks,
Mark

Correction to the post:

class name=”DataTransfer.Product, DataTransfer” table=”Product” check=”Cost > 0″

AC

The check constraint only works if you define it at the class tab level:

0″>

Result:

create table Product (
ProductId INT IDENTITY NOT NULL,
Name NVARCHAR(50) not null,
Cost REAL not null,
primary key (ProductId),
check (Cost > 0)
)

Thanks for the screencast series,

AC

Yes, that’s EXACTLY the trouble — and the point of the ISet vs IList as the collection type. I guess I missed that nuance when I progressed from the model in the earlier sessions to the one that finally ended up being the sample in Session 09.

ISets don’t allow dupes whereas ILists do and *generally* you nearly always find that you want to model your collections as sets since this is certainly the more common relational model in your database. I guess I screwed up and overlooked that in the model + the corresponding mapping.

Thanks for both catching this and offering up the solution!

Second point should read …”to use ’set’ instead of ‘bag’” (tags).

After fourth point, I had posted full xml of expanded tags for ‘key’ and ‘many-to-many’ for Order.hbm.xml. Basically, inside the ‘key’ and ‘many-to-many’ tags, put a ‘column’ self-closing tag with the column name and ‘not-null’.

TY

Jason