|
How can I create a disjunction in NHibernate that would accomplish the following sql:
Select * from MyTable
Where (conditionA = true AND conditionB = true)
OR (conditionC = true AND conditionD = true)
From what I've seen, the Disjuntion() takes single...
Started by Chris Conway on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
It's not exactly pretty but you would write it like this :
.Add( Restrictions.Or( Restrictions.Conjunction().Add(Restrictions.Eq("columnA", true)).Add(Restrictions.Eq("columnB", true)), Restrictions.Conjunction().Add(Restrictions.Eq("columnC", true)).... .
|
|
Looks like
while( condition ) { //do stuff }
is completely equivalent to
for( ; condition; ) { //do stuff }
Is there any reason to use the latter instead of the former?
Started by sharptooth on
, 18 posts
by 18 people.
Answer Snippets (Read the full thread at stackoverflow):
That looks like this:
for (; iter != foo.end(); ) { // do stuff if (condition) { iter = foo.erase to compile
for(INIT; CONDITION; UPDATE) { BODY }
into
{ INIT while(CONDITION) { BODY UPDATE of an infinite loop, I might choose a for....
|
|
Hi i have condition need to be check
if(staffid!=23||staffid!=24||staffid!=25||staffid!=26||staffid!=27||staffid!=29||staffid!=31) { do the req thing .. }
right now i checking the condition like this . is their any better way to write this condition
thank...
Started by prince23 on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Your condition looks wrong, just the condition, and more....
If there is no else, put the "not" to the beginning .
If there is both a if and else section, swap them .
Of "not"s in a complex condition, just convert it to say the contrary.
|
Ask your Facebook Friends
|
I have been thinking about design by contract lately and I was wondering what people think is the best way to assert pre-condition and post-condition of values in .NET? i.e. validating argument values to a method.
Some people recommend Debug.Assert while...
Started by James Newton-King on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
I prefer exceptions over asserts because if it's supposed to be that way and isn't, I want to know about it so I can fix it, and the coverage we get in debug mode is nowhere near real-life usage or coverage, so just using Debug.Assert doesn't do enough... .
|
|
Please look at following image, I have explained my requirements in the image.
I can't use here WHERE UsageTypeid IN(1,2,3,4) because this will behave as an OR condition and fetch all records.
I just want those records, of first table, which are attached...
Started by Muhammad Kashif Nadeem on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
If (EntityId, UsageTypeId) is unique:
select s.PrimaryKeyField, s.ShipmentId from shipment s, item a where s.PrimaryKeyField = a.EntityId and a.UsageTypeId in (1,2,3,4) group by s.PrimaryKeyField, s.ShipmentId having count(*) = 4
otherwise, 4-way join... .
|
|
I know this is a matter of style, hence the subjective tag. I have a small piece of code, with two nested conditions. I could code it in two ways, and I'd like to see how more experienced developers think it should look like.
Style 1 :
while (!String....
Started by Hosam Aly on
, 24 posts
by 23 people.
Answer Snippets (Read the full thread at stackoverflow):
Basically, the attitude.
Are more interested in the condition being true, while the false state is rarer or not preferred constantly wondering if I need to guard against some condition or other.
|
|
Hi All
Can anyone please explain to me why the following two queries yield different results?
SELECT o.* FROM Customer c LEFT JOIN [Order] o ON o.CustomerID = c.CustomerID AND o.OrderType = 'Cash' WHERE c.Country = 'USA' SELECT o.* FROM Customer c LEFT...
Started by Ravish on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
In the second instance, more customer-order.
Instance you may get less records, because only one customer will pass through to the WHERE condition if his orders are filtered out by the Cash condition in Join.
|
|
I have a situation which I have solved in two different ways, but was wondering what people thought about the options, and if they have any other alternatives...
The system is processing "intervals" of data.
All the data is allocated to an "interval" ...
Started by Dems on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Depending on your index and table....
How about:
WHERE interval_start <= CASE mode WHEN 0 THEN '9999-12-31' WHEN 1 THEN GETDATE() WHEN 2 THEN GETDATE() - interval_period END
Another option would be to run three separate queries and UNION them together .
|
|
What is the answer to this C question:
What's the "condition" so that the following code snippet prints both HelloWorld !
if "condition" printf ("Hello"); else printf("World");
Started by redspike on
, 15 posts
by 15 people.
Answer Snippets (Read the full thread at stackoverflow):
Edit: Okay, so it's a trick question and you can put whatever you like in the condition) printf ("Hello"); if (false) printf....
No matter what you use for condition , that snippet will either print "Hello", or "World", but never both.
Example).
|
|
Hi all,
is there any way to make this logic:
I need to make a statement one time only if the condition is false as below:
while 1: statement1 statement2 if condition: --condition is true here statement3 else --condition is false here statement3 --I need...
Started by mahdi86 on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Statement2 if condition: statement3 elif neverdone: neverdone = False statement3 if anothercondition() if not condition: state3 = lambda : None if another_condition: break
Thise will destroy the state3 when the condition is....
|
