Using SQL Adapters with Ensemble - InterSystems Documentation

Creating Adapter Methods for SQLMethod GetPhone(pRequest As ESQL.GetPhoneNumberRequest,Output pResponse As ESQL.GetPhoneNumberResponse) As %Status{Set pResponse = ##class(ESQL.GetPhoneNumberResponse).%New()//need to pass tResult by reference explicitly in ObjectScript//Use an adapter to run a query in the Employee database.Set tSC = ..Adapter.ExecuteQuery(.tResult,"Select "_pRequest.Type_" from Employee where EmployeeID="_pRequest.ID)//Get the resultdo tResult.Next()set pResponse.PhoneNumber = tResult.GetData(1)}Quit $$$OK5.4 Performing Updates, Inserts, and DeletesTo perform a database update, insert, or delete, use one of the following methods:ExecuteUpdateMethod ExecuteUpdate(Output pNumRowsAffected As %Integer,pUpdateStatement As %String,pParms...) As %StatusExecutes an INSERT, UPDATE, or DELETE statement. You can pass any number ofparameters for use in the statement. Notes:• The number of rows affected is returned as output in the first argument.• The second argument is the INSERT, UPDATE, or DELETE statement to execute. Thisstatement can include the standard SQL ? to represent replaceable parameters.ExecuteUpdateParmArrayMethod ExecuteUpdateParmArray(Output pNumRowsAffected As %Integer,pUpdateStatement As %String,ByRef pParms) As %StatusExecutes an INSERT, UPDATE, or DELETE statement. This method is similar to the precedingmethod with the exception of how parameters are specified. This method is similar to thepreceding method with the exception of how parameters are specified. For this method, youspecify the parameters in a Caché multidimensional array (pParms), as described in “SpecifyingParameters in a Caché Multidimensional Array,” earlier in this chapter.You use the ExecuteUpdateParmArray method if you need to specify parameters and ifthe ODBC driver that you are using does not support the ODBC SQLDescribeParam function.40 Using SQL Adapters with Ensemble