Which four types of variables must have their names preceded by a colon when they are referenced in trigger code?
The Order Entry application contains several forms. The inventories form uses an LOV that is based on a record group that queries the Warehouses table to return a warehouse ID.Several of the forms use LOVs that are based on the same query. You decide to centralize the creation of the record group to the entry form of the application, which opens all the other forms, for example, to open the inventories form, there is a When-Button Pressed trigger on the inventories button with the following code;OPEN _FORM ('inventories');in a When-New-Form-instance trigger for the entry form, you create the warehouse_rg record group by using the CREATE_GROUP_QUERY built in with the following arguments:('warehouse_rg' , 'SELECT ALL WAREHOUSE.WAREHOUSE_ID, WAREHOUSE.WAREHOUSE_NAME FORM WAREHOUSE order by warehouse_name);You also populate the record group in this trigger.What must you do to make this record group available to the inventories form and the other forms?
View the Exhibit.Iin the Human Resources form shown in the Exhibit, you want to modify the prompts, heights, and widths of the Department Id, Manager Id, and Location Id Holds in the Departments data block.What must you select before invoking the Layout Wizard in reentrant mode to modify these item properties?
You are implementing a JavaBean in a form, the bean has no visible component on the form when invoked, the bean displays an input text where users enter a zip code, the bean has a single method that returns a short weather forecast for that zip code as a character value.How can you retrieve that value so that you can display it to the user?
The Orders database table uses Order_id as its primary key. You have written the following code to use in the Orders block of a form:SELECT orders_seq.NEXTVAL -INTO :orders.order_id -FROM SYS.dual;Which statement is true about this code?
The Credit_Rating item in the Customers block of an Order Entry form must be restricted to three possible values: Good, Poor, or Null (the latter value indicates that the credit rating has not been determined). Order entry clerks must be able to update this item to any of the preceding three values.You want to change the item to a check box labeled "Credit Risk" that should be selected if the customer has poor credit, the check box should not be selected if the customer's credit rating is good or undetermined.You change the item type to Checkbox, set other properties as shown in the Exhibit, and then run your form and insert three records: two with good credit and the check box deselected, and one with poor credit and the check box selected. You commit the data and query the records, with the following result set:The first two records show an undetermined credit rating, although your intention was to set the value to Good for these customers. What change must you make in the properties of the Credit_Ratinq item to enable values of Good, Poor, and Null to be entered?
