What is easier to read in EXISTS subqueries? [closed]

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Intuitive is ...EXISTS (SELECT * .. because you really don’t care

  • The only keyword of importance is EXISTS
  • The choice of ...EXISTS (SELECT 1 .. perpetuates the general myths and superstitions around EXISTS (eg comments on the MySQL docs).
  • ANSI standard says “doesn’t matter”
  • It’s more interesting to understand that EXISTS is a semi-join.

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