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rotti321

Operatii logice & relationale

May 14th, 2021
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SQL 0.31 KB | None | 0 0
  1. Operatii logice
  2.  
  3. 1) NOT
  4. Ex: NOT Chimie
  5. [se afiseaza toate inregistrarile care nu au valoare Chimie]
  6.  
  7. 2) AND
  8. EX: >=7 AND <=10
  9. se stabileste intervalul [7,10]
  10.  
  11. 3) OR
  12. Ex: Londra OR Milano
  13. se selecteaza campurile cu valorile Londra sau Milano
  14.  
  15.  
  16. Operatii relationale
  17. <
  18. <=
  19. >
  20. >=
  21. <>  [diferit]
  22. =
  23.  
  24.  
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