使用REGEXP_EXTRACT提取sql中的嵌套字段

Question

I am using Google Big Query and querying Sample Records for column in table:

age=18;cntry=us;coid=9911718;csize=c;func=ops;gdr=f;grp=2099628;grp=85824;grp=1548357;grp=88799;grp=2059383;grp=1937629;ind=78;lang=en;mod=0;occ=511;optout=false;reg=21;s=0;seg=9001;seg=761;seg=541;seg=521;seg=1068;seg=557;seg=546;seg=514;seg=504;seg=183;seg=263;sub=0;tile=1;tile_p=1;title=ic;u=nql8uz5qrt8vcqh5tkcqq697

Query:

SELECT REGEXP_EXTRACT(col,r'age=(\d+)') AS age,
  REGEXP_EXTRACT(col,r'cntry=(\d+)') AS country,
  REGEXP_EXTRACT(col,r'gdr=(\d+)') AS gender from table x

Result: 18 null null

I am getting only age value but other values as null. Any help will great on this.

Answer 1

The cntry and gdr values are not numeric, they consist of letters.

You may use \\w+ matching 1 or more "word" chars, ie letters, digits and underscores:

SELECT REGEXP_EXTRACT(col,r'age=(\d+)') AS age,
  REGEXP_EXTRACT(col,r'cntry=(\w+)') AS country,
  REGEXP_EXTRACT(col,r'gdr=(\w+)') AS gender from table x