z zckao Joined 13 years ago Karma 317 Submissions 11 Member since May 16 website: kaomorphism.com View on Hacker News
CDC Internal Delta Variant Presentation c context-cdn.washingtonpost.com 105 zckao 5 years ago 123 comments
Show HN: Select Star SQL, an interactive SQL book s selectstarsql.com 700 zckao 8 years ago 112 comments