# Assuming:
# 
# Table1
# +-----+-----------+
# | id  |   Name    |
# +-----+-----------+
# |  1  |   Bill    |
# +-----+-----------+
# |  2  |   Bob     |
# +-----+-----------+
# |  3  |   Mike    |
# +-----+-----------+
# 
# Table2 before
# +-----+-----------+
# | id  |   Name    |
# +-----+-----------+
# |  ?  |   Mike    |
# +-----+-----------+
# |  ?  |   Bob     |
# +-----+-----------+
# |  ?  |   Bill    |
# +-----+-----------+
# 
# Table2 after
# +-----+-----------+
# | id  |   Name    |
# +-----+-----------+
# |  ?  |     3     |
# +-----+-----------+
# |  ?  |     2     |
# +-----+-----------+
# |  ?  |     1     |
# +-----+-----------+