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SQLKata Update Query Including FromRaw Statement

I am trying to create an update query in SQLKata that includes a 'FromRaw' statement. Below is a copy of my best attempt at what I am trying to accomplish. I have to use a FromRaw statement because I am linking 2 tables on an evaluation. Is there any way to accomplish this without having to resort to the Statement() function?
var query = db.Query(Table1)
.FromRaw(" Table1 INNER JOIN Table2 " +
" ON LEFT([Table1].[Company],5) = " +
" LEFT([Table2].[Company],5)" )
.Update(new { scrub = "match" });
Below is a copy of the error message:
System.InvalidOperationException: 'Invalid table expression'

This bit of code works just fine for me:
var compiler = new SqlServerCompiler();
//var Table1 = "Table1";
var query = new Query(null)
.FromRaw("Table1 INNER JOIN Table2 " +
"ON LEFT([Table1].[Company],5) = " +
"LEFT([Table2].[Company],5)")
.AsUpdate(new { scrub = "match" });
var rawSql = compiler.Compile(query).RawSql;
With rawSql value being:
UPDATE Table1 INNER JOIN Table2 ON LEFT([Table1].[Company],5) = LEFT([Table2].[Company],5) SET [scrub] = ?
The error message you're getting is only found in Compiler.cs, which is why I suggested that you check which compiler you're using.

Xamarin sql using left join for an android Tablet app

var db = new SQLiteConnection(dbPath);
try
{
var results = db.Query<Xclass>("SELECT X.COL1, X.COL2, " +
" X.COL3, X.Col4, X.Col5, " +
" A.Col2, A.COL3, B.Col2, C.Col2 " +
"FROM left join Xam X " +
"left join TABLE1 A on X.COL1 = A.COL1 " +
"left join TABLE2 B on X.COL2 = B.COL1 " +
"left join TABLE3 C on X.COL3 = C.COL1 " +
"WHERE X.COL1 ='"+ somevalue +"'");
}
catch (Exception e)
{
// display message
}
XCLASS Contains all the getters and setters.
But it only pulls in the Xam table and not the A, B, or C table values.
I originally had the table name in the Class but took it out to see if that would help.
Any assistance is appreciated. I am trying to avoid linq but if is necessary I will try it.

The instance(s) of Xclass object is created from the results of your query via reflection.
The columns in query's result set are translated to properties of the class
and the setters of hese properties are used to assign their values.
Therefore you must supply some hints to SQlite so it will know which column corresponds to which property. This is done via as keyword.
So, if you want assign the value of A.COL2 column in the result to property named MyCol2Property inside Xclass, you must retrieve it in the query using the syntax
A.Col2 as MyCol2Property

C# ASP.NET MVC 5 How to execute a raw query?

I am trying to execute a raw query using c#.
Here is what I have done
var accounts = conn.Database.SqlQuery<IEnumerable<string>>("SELECT TOP 1 a.* FROM zipcodes_to_accounts AS c " +
"INNER JOIN accounts AS a ON a.id = c.account_id " +
"WHERE c.zip_code = #p0 "+
"ORDER BY a.completed_ll + a.completed_cp ASC", zipcode).ToArray();
Then I want to take the first record and convert it to json object.
if (accounts.Count() > 0)
{
return JsonConvert.SerializeObject( accounts.First() );
}
But the query is giving me an error
The result type 'System.Collections.Generic.IEnumerable`1[System.String]' may not be abstract and must include a default constructor.
The accounts table has some columns that are varchar, datetime, integers. How can I get this query to work?
UPDATED
Converting the IEnumerable to list like advised in the answer it working. but now the JsonConvert is returning an empty object. Here is my current code
//getAccount
public string GetAccount()
{
string zipcode = StringHelpers.StringOrNull(Request["zip_code"]);
if (zipcode != null)
{
var accounts = conn.Database.SqlQuery<List<string>>("SELECT TOP 1 a.* FROM zipcodes_to_accounts AS c " +
"INNER JOIN accounts AS a ON a.id = c.account_id "+
"WHERE c.zip_code = #p0 "+
"ORDER BY a.completed_ll + a.completed_cp ASC", zipcode).ToList();
var firstAccount = accounts.FirstOrDefault();
if (firstAccount != null)
{
return JsonConvert.SerializeObject(firstAccount);
}
}
return "{}";
}
When I debug my code Here is what I see

Not sure what ORM you're using, but the warning is telling you that IEnumerable cannot be constructed as it's an interface. Therefore the SqlQuery method can't know what return type you're expecting.
Try replacing the generic constraint with a concrete type:
var accounts = conn.Database.SqlQuery<string>("SELECT TOP 1 a.* FROM zipcodes_to_accounts AS c " +
"INNER JOIN accounts AS a ON a.id = c.account_id " +
"WHERE c.zip_code = #p0 "+
"ORDER BY a.completed_ll + a.completed_cp ASC", zipcode).ToArray();

You're asking for a IEnumerable<string> which is an interface. You need to pick a class that implements IEnumerable such as a List

Replacing old sql written in asp.net with Linq

I was trying to replace SQL code with LINQ in order to migrate in to MVC ,but i don't know how to use subquery in LINQ.As of now i have replaced inner sql query with LINQ,i would like to know how to do with outer query.
Following is the SQL query
SELECT
DISTINCT GP_REGION.REGION_MAIN Region_Code,
R1.REGION_NAME
FROM
GP_REGION
INNER JOIN GP_REGION R1 ON GP_REGION.REGION_MAIN = R1.REGION_CODE
WHERE
GP_REGION.REGION_HAS_DATA = 'Y'
AND
GP_REGION.REGION_MAIN IN
(
SELECT
DISTINCT AR.BRANCH_CODE
FROM
PORTAL.UA_APPLN_ROLE AR
INNER JOIN PORTAL.UA_GROUP G ON AR.GROUP_CODE = G.GROUP_CODE
WHERE
G.USER_ID = '" + Global.UserId() + "' AND AR.APPLICATION_ID = '" + ApplicationId + "'
)
ORDER BY
GP_REGION.REGION_MAIN
Here the inner query i have replaced as shown below by using following LINQ
var regions = from p in db3.UA_APPLN_ROLE.AsEnumerable()
join i in db3.UA_GROUP.AsEnumerable()
on p.GROUP_CODE equals i.GROUP_CODE
where
i.USER_ID == Global.UserId()
&&
p.APPLICATION_ID == ConfigurationManager.AppSettings["ApplicationId"]
select new
{
branchcode = p.BRANCH_CODE
};
But i would like to know the outer sql query how can i replace and join with existing LINQ code i wrote

You combine the subquery into the main query as follows:
var efQuery = from gp in db3.GP_REGION
join r1 in db3.GP_REGION on gp.REGION_MAIN equals r1.REGION_CODE
where regions.Contains(gp.REGION_MAIN)
&& gp.REGION_HAS_DATA = "Y"
select new
{
Region_Code = gp.REGION_MAIN,
Region_Name = r1.REGION_NAME
};
var queryResult = efQuery.Distinct().OrderBy(x => x.Region_Code);
You can speed the processing up a bit by using .AsNoTracking(), e.g. db3.GP_REGION.AsNoTracking().
In general it's a good idea to monitor the generated SQL query to avoid situations where it looks simple in code, but is transformed into bad SQL.
But in my opinion the advantages of having the query a first class member in your code (compared to SQL in strings) outweigh the sometimes non-intuitive generated SQL.

Differentiating between 2 SQL column names with the same name in a C# SqlConnection

I have joined the same 2 tables twice using different aliases in a SQL query to enable me to select 2 (potentially but not always) different address ids which then link in to the address table.
SELECT C.court_id, C.court_name, CA.court_address, CA2.court_address...
FROM court C " +
JOIN court_addr CA ON C.court_addr_id = CA.court_addr_id " +
JOIN court_addr CA2 ON C.court_postal_addr_id = CA2.court_addr_id " + ...
Now when trying to output the results of this query using ASP.NET C# I'm unsure how to specify which of the two addresses to Response.Write. Putting the alias in front of the column name (as in the 4th string value below) doesn't work and brings up an error. Is there a way of differentiating between the two addresses in C# despite them both having the same column name in the database?
while (myDataReader.Read())
{
string court_id = myDataReader["court_id"].ToString();
string court_name = myDataReader["court_name"].ToString();
string court_address = myDataReader["court_address"].ToString();
string court_postal_address = myDataReader["CA2.court_address"].ToString();
etc.....
Thanking you muchly in advance

You should use an alias in your sql to distinguish them, then you will be able to return the correct value:
SELECT C.court_id,
C.court_name,
CA.court_address as CACourtAddress,
CA2.court_address as CA2CourtAddress
FROM court C " +
JOIN court_addr CA ON C.court_addr_id = CA.court_addr_id " +
JOIN court_addr CA2 ON C.court_postal_addr_id = CA2.court_addr_id " + ...

You should use alias name to distinguish two columns having same name like :
SELECT C.court_id, C.court_name, CA.court_address CourtAddress, CA2.court_address CourtPostalAddress FROM court C
JOIN court_addr CA ON C.court_addr_id = CA.court_addr_id
JOIN court_addr CA2 ON C.court_postal_addr_id = CA2.court_addr_id
And then in C# you can access them very easily :
string court_id = myDataReader["court_id"].ToString();
string court_name = myDataReader["court_name"].ToString();
string court_address = myDataReader["CourtAddress"].ToString();
string court_postal_address = myDataReader["CourtPostalAddress"].ToString();
I hope this helps solve your problem :)

you could access the columns via index if you cannot modify the query.
var foo = MyDataReader[0].ToString();
Or you could modify the query using the AS keyword in your sql statement.
SELECT foo AS bar FROM Baz

In addition to providing a column name alias as bluefeet suggests, another way would be to access the values by index instead of by name in C#.
string theValue = myReader[0] as string ?? String.Empty;
This, however, requires the order of the columns to never change and is thus to be used carefully. Also, this only works as you specifically select the columns by name in the given order in your SQL statement.
This may not work for a SELECT *, as the order of the returned columns is not fixed in a SELECT *.