When you run a query against a database server, it returns a response to the client. There are three types of the server response to an SQL query:
Status (info) message
Tabular data is displayed in the data editor. Status messages and errors are logged to the Output window. Errors are not only logged to Output window they are also shown in the Error List window.
The following image represents a general view of the Output window.
Depending on the product, the Output window appearance may vary.
The window can contain up to four output panes (depending on the specific product):
General pane contains most output messages, not only from a database server but from the application itself.
Data pane displays query results represented as a formatted text. This pane remains empty unless the Redirect Data to Output Window option is selected in any SQL document.
SQL Log pane displays all the SQL queries executed by an application during the current session. But you need to turn on Write queries sent by the program to the SQL Log option to see those queries. This option is located in the following path: Tools -> Options -> Environment -> Output.
As you can see from the above screenshot, server errors are also logged to the Output window. You can navigate to the place of an error by double-clicking on the pop-up menu.
You can search text in the Output window. To find specific text:
When something goes wrong, you can see an error. If it is a user or database server error, such as a mistyped query, in most cases you will see it in the Error List window.
Here is an example of an error displayed in the Error List.
Error List shows not only errors but also warnings and informational messages which require user attention. A warning is a non-blocking error, while an informational message is just a user notification.
You can filter messages by a type using appropriate buttons on the toolbar of the Error List window.
You can navigate to the error position by double-clicking it in the list or select Go to Error on the pop-up menu.
Error List aggregates all error messages in the application. And if you have multiple open documents with errors, the error processing can quickly become awkward.
But the window has another filter option - In Active Document. This option allows you to view only those errors that are located in the current document window.