How do you write a parameterized where-in raw sql query in Entity Framework

Question

How do you write a parameterized where-in raw sql query in Entity Framework? I\'ve tried the following:

string dateQueryString = String.Join(\",\", chartMode         


        

Answer 1

Here's how you would write your query in SQL.

select *
    from MyTable
    where dateColumn in ('2014-01-01', '2014-02-01', '2014-03-01')

So one shall not expect otherwise than having to represent this string entirely delimited by parenthesis.

var dateQueryString = string.Join(",", chartModelData.GetFormattedDateList());
// Dates shall be returned as DateTime.ToShortDateTimeString() as follows:
// '2014-01-01', '2014-02-01', '2014-03-01'

Then only remains to wrap it in parenthesis.

var sql = @"select max(data_seq)    as MaxSeq
                    , min(data_seq) as MinSeq
                    , count(1)      as TotSampleCnt
                from spcdata_tb
                where data_wadate in (@DateParam)
                    and line_code  =  @LineCode
                    and model_no   =  @ModelNumber
                    and lot_no     =  @LotNumber
                    and equip_no like @EquipNumber";

Provide the parameters values for each named parameter, and voilà! This shall do it!