Question

when I execute these operators( > and >=) lambda expression in entity framework. both are getting same results.

1. db.Companies.where(Company => (Compare(Convert(Company.Name), "y") > 0))
2. db.Companies.where(Company => (Compare(Convert(Company.Name), "y") >= 0))

Is that issue with Lambda expression compare operator?
i changed to

1. db.Companies.where(Company => (Compare(Convert(Company.Name), "y") > 1)) – No results. Its not correct

2. db.Companies.where(Company => (Compare(Convert(Company.Name), "y") >= 1)) – 64 results

source code

case operatorType.Greater: return Expression.GreaterThan(Expression.Call(typeof(string),
                            "Compare", null, new[] { argLeft, argRight }),
                             Expression.Constant(1, typeof(int)));

case operatorType.GreaterEqual: return Expression.GreaterThanOrEqual(       Expression.Call(typeof(string), "Compare", null, new[]  { argLeft, argRight }),
                        Expression.Constant(1, typeof(int)));

Answer 1

Thanks for all responses The Lambda expression query is correct only.

db.Companies.where(Company => (Compare(Convert(Company.Name), "Test") > 0))
db.Companies.where(Company => (Compare(Convert(Company.Name), "Test") >= 0))

I changed the “right arg” value to “Test”. I have one record ‘Name’ with Test. executed the following query.

db.Companies.where(Company => (Compare(Convert(Company.Name), "Test") > 0)) 

and shown the results 105(here Name with ‘Test’ is not shown. – Correct

Then I executed this

db.Companies.where(Company => (Compare(Convert(Company.Name), "Test") >= 0)) 

and shown the results 106(here Name with ‘Test’ is shown) – Correct