A generator is just a data resource and therefore you can use it in every data operation.
The head command will print the generated data.
tabul data head --limit 30 sequence--generator.yml@howto
The first 30 rows of the data resource (sequence@memgen):
seq_int seq_char
------- --------
1 a
2 b
3 c
4 d
5 e
6 f
7 g
8 h
9 i
10 j
11 k
12 l
13 m
14 n
15 o
16 p
17 q
18 r
19 s
20 t
21 u
22 v
23 w
24 x
25 y
26 z
27 1
28 2
29 3
30 4
You can insert the generated data into a table in the sqlite database
tabul data insert sequence--generator.yml@howto sequence@sqlite
Transfer results
input target latency record_count error_code error_message
--------------- --------------- ------- ------------ ---------- -------------
sequence@memgen sequence@sqlite 0.58s 30
Tabulify - How to create a CSV File with generated data