Bigquery 中 REGEXP_EXTRACT 函数的雪花中的类似函数是什么？

Question

Bigquery :

SELECT *,
    REGEXP_EXTRACT(AM_EMAIL, '^[a-zA-Z0-9_.+-]+') as x_ALIAS,
    "https:" AS COL1
FROM `agm-data-.global_i.P_ROUTING`;

Want to Convert this bigquery into Snowflake ,Please suggest on REGEXP_EXTRACT Bigquery similar function in snowflake?

Answer 1

In Snowflake you would use REGEXP_SUBSTR() . The regex you are using should work just fine, so:

REGEXP_EXTRACT(AM_EMAIL, '^[a-zA-Z0-9_.+-]+') as x_ALIAS

Note that [a-zA-Z0-9_] can also be expressed as [:alnum:] , so:

REGEXP_EXTRACT(AM_EMAIL, '^[[:alnum:].+-]+') as x_ALIAS