instruction: Total number of comments that contains keyword by year and month.
response: SELECT CAST(YEAR(CreationDate) AS TEXT(4)) + '-' + RIGHT('00' + CAST(MONTH(CreationDate) AS TEXT(2)), 2) AS year_month, COUNT(*) AS total FROM Comments WHERE (UPPER(Text) LIKE '%DEVOPS%') GROUP BY CAST(YEAR(CreationDate) AS TEXT(4)) + '-' + RIGHT('00' + CAST(MONTH(CreationDate) AS TEXT(2)), 2) ORDER BY CAST(YEAR(CreationDate) AS TEXT(4)) + '-' + RIGHT('00' + CAST(MONTH(CreationDate) AS TEXT(2)), 2)