How can you tell if data has changed in a table?
Since the value increases monotonically, this would give you a reliable indication that the data has changed if the new value is greater than the last time you checked it. If the source is insert-only, give it an IDENTITY column. When it does its data transfer, it logs the highest value written.
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What happens when SQL Server detects a change to a row?
Conceptually, it is like defining a view. If SQL Server detects that any row returned through that view has changed, it sends a message to the application. There is no indication of how many rows changed or which columns. There is only a simple message that says “something happened”. It is up to the application to ask and react.
How are items selected in item view?
There may be multiple items selected. The current item will be changed by navigation key or mouse button clicks. The selected state of elements is turned on or off, depending on various predefined modes, eg single select, multi select, etc., when the user interacts with the elements.
How to detect touch or click of Tableview cell?
You can find the event for the touch/click of the tableview cell through its delegate method. Also, you can find the value of section and row of cell in this way. A couple of things that need to happen… The view controller needs to include the didSelectRowAt function.
Why do we need to find database changes in SQL Server?
Why do we need to find database changes in SQL Server? Because any unauthorized changes to the SQL Server database, such as deleting, modifying, or creating a database or its objects, can compromise the security of your data. For example, deletions or modifications may result in data loss or system unavailability.
Why do I need to check that the database is modified?
The reason to check that the database is modified is for backup purposes (sql database backup). So first I will do a full backup and if any structural data is inserted, modified or modified or changes are made then I have to identify that there are some changes in the databases and backup the database .
When does change data capture remain enabled in SQL?
SQL Server uses the following logic to determine whether change data capture remains enabled after a database is restored or attached: If a database is restored to the same server with the same database name, change data capture modified remains enabled.