Updating a cursor
As with is used to open a cursor variable whose query was bound to it when it was declared. A list of actual argument value expressions must appear if and only if the cursor was declared to take arguments. The query plan for a bound cursor is always considered cacheable; there is no equivalent of , as the cursor's scrolling behavior was already determined.Argument values can be passed using either positional or named notation.When a getter method is called with a string and more than one column has the same alias or name as the string, the value of the first matching column is returned.
If the cursor points to a record that has just been deleted, a new record is created.
Be aware that you can't call he cursor does not require us to select the data based on a key; we can just grab all of it.
I trust the geometry (read: x and y coordinates) from one of them, but not the attributes data.
While we won't be looking at the use of multiple cursors within the same stored proc, it is entirely possible to have multiple cursors in the same code block, but each cursor must have a unique name. HANDLER statement specifies a handler that deals with one or more conditions.
If one of these conditions occurs, the specified statement executes.
Search for updating a cursor:
The statement can be a simple statement such as SET var_name = value, or a compound statement written using BEGIN and END.