google-big-queryHow can I use regular expressions in Google Big Query?

Regular expressions can be used in Google Big Query to search for specific patterns in data. For example, the following code block can be used to search for a pattern of the form [A-Z]{2}[0-9]{3} in a table called my_table.

SELECT * FROM my_table
WHERE REGEXP_CONTAINS(my_column, r'[A-Z]{2}[0-9]{3}')

The code block will return all records from the table where the value in the my_column column matches the regular expression pattern.

The parts of the code are as follows:

• SELECT * FROM my_table: This statement selects all columns and records from the my_table table.
• WHERE REGEXP_CONTAINS(my_column, r'[A-Z]{2}[0-9]{3}'): This statement filters the results to only include records where the value in the my_column column matches the regular expression pattern [A-Z]{2}[0-9]{3}.

For more information about using regular expressions in Big Query, see the Big Query documentation.

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