Table_a
column name: list_id
record 1: 1,2,5,6,8
record 2: 1,3,2
record 3: 6,7,2
record 4: 9,8,0
column name: list_id
record 1: 1,2,5,Table_a
column name: list_id
record 1: 1,2,5,6,8
record 2: 1,3,2
record 3: 6,7,2
record 4: 9,8,0
column name: list_id
record 1: 1,2,5,