Develop X++ Code MB-500 Practice Questions (Page 7)

Questions 31–35

1. 31application · medium

   A developer needs to update the 'CreditMax' field for all customers in a specific customer group. The update must be done efficiently and must not trigger any overridden update methods. Which X++ code should the developer use?

   • Awhile select CustTable where CustTable.CustGroup == 'G1' { CustTable.CreditMax = 1000; CustTable.update(); }
   • Bupdate_recordset CustTable setting CreditMax = 1000 where CustTable.CustGroup == 'G1';
   • CCustTable CreditMax = 1000; update_recordset CustTable where CustTable.CustGroup == 'G1';
   • Dselect firstonly CustTable where CustTable.CustGroup == 'G1'; CustTable.CreditMax = 1000; CustTable.update();
   Reveal Solution Discussion Select an answer first
2. 32foundation · easy

   Which X++ construct is used to iterate over multiple records returned by a query?

   • Aif select
   • Bselect loop
   • Cfor select
   • Dwhile select
   Reveal Solution Discussion Select an answer first
4. 33application · medium

   A developer needs to insert multiple records into a custom table from a list of values. The developer wants to ensure that if any insert fails, all inserts are rolled back. Which approach should be used?

   • AUse a while loop with individual inserts without a transaction.
   • BWrap the insert loop in ttsbegin/ttscommit and use a try-catch to handle exceptions.
   • CUse the database synchronize method before inserting.
   • DUse insert_recordset to insert all records in one statement.
   Reveal Solution Discussion Select an answer first
5. 34foundation · easy

   Which X++ control structure is used to execute a block of code repeatedly as long as a specified condition is true, with the condition checked before each iteration?

   • Aswitch
   • Bdo-while
   • Cif-else
   • Dwhile
   Reveal Solution Discussion Select an answer first
6. 35expert · hard

   A developer is writing X++ code to process a list of customer records. The code needs to skip customers that are on hold and stop processing entirely when a specific customer ID is encountered. Which control structure should the developer use?

   • AA for loop with an if statement that uses return.
   • BA switch statement with cases for each customer ID.
   • CA do-while loop with an if statement that uses exit.
   • DA while loop with an if statement that uses continue and break.
   Reveal Solution Discussion Select an answer first