Could not find an implementation of the query pattern

Could not find an implementation of the query pattern

c# sql silverlight wcf linq

sql

There is insufficient system memory in resource pool 'default' to run this query. on sql

c# sql sql-server wcf

sql

Cannot implicitly convert type 'bool' to 'system.threading.tasks.task bool'

c# sql linq wcf

sql

C#/SQL Database listener

c# sql wcf transactions erp

sql

Why returning dataset or data table from WCF service is not a good practice? What are the Alternatives?

c# sql wcf datatable dataset

sql

SqlDataReader to read into List<string>

c# sql wcf ado.net sql-server-express

sql