how to extract this pattern with SQL BIGQUERY?

Question

From this clause: b-12345_xx_aa_bbb_xsx-latam_jan_11_a12

I want to extract with REGEXP_EXTRACT:

• b-12345
• xx
• aa
• bbb

Thanks in advance

Answer 1

Try below

select col,
  parts[offset(0)], 
  parts[safe_offset(1)], 
  parts[safe_offset(2)], 
  parts[safe_offset(3)]
from your_table, unnest([struct(split(col, '_') as parts)]) 

if applied to dummy data in your question - output is