Linux tcpdump command examples. tcpdump is a most powerful and widely used command-line packets sniffer or package analyzer tool which is used to capture or filter TCP/IP packets that received or transferred over a network on a specific interface.
2 Answers 2. Merge takes both geometry and attributes and combines (merges) the entire dataset into a new feature dataset. Append is good way to join extra data to an existing dataset - it can have options to control subtypes of features being appended.
Benefits of using an append query. By using a query to copy data, you can: Append multiple records in one pass If you copy data manually, you usually have to perform multiple copy/paste operations. By using a query, you select all the data at once, and then copy it.