Question

totally depends on the time when the data is to be extracted .
1)Full extraction
2)Incremental extraction
3)Physical extraction
4)all of them

Answer 1

ϙᴜᴇsᴛɪᴏɴ :

ᴛᴏᴛᴀʟʟʏ ᴅᴇᴘᴇɴᴅs ᴏɴ ᴛʜᴇ ᴛɪᴍᴇ ᴡʜᴇɴ ᴛʜᴇ ᴅᴀᴛᴀ ɪs ᴛᴏ ʙᴇ ᴇxᴛʀᴀᴄᴛᴇᴅ .

1)ғᴜʟʟ ᴇxᴛʀᴀᴄᴛɪᴏɴ

2)ɪɴᴄʀᴇᴍᴇɴᴛᴀʟ ᴇxᴛʀᴀᴄᴛɪᴏɴ✔

3)ᴘʜʏsɪᴄᴀʟ ᴇxᴛʀᴀᴄᴛɪᴏɴ

4)ᴀʟʟ ᴏғ ᴛʜᴇᴍ

Answer:

2)incremental extraction