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Oracle Tutorials - Differences between CHAR and VARCHAR

By: FYIcenter.com

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What Are the Differences between CHAR and VARCHAR2?

The main differences between CHAR and VARCHAR2 are:

  • CHAR stores values in fixed lengths. Values are padded with space characters to match the specified length.
  • VARCHAR2 stores values in variable lengths. Values are not padded with any characters.

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  1. What Is SQL Standard?
  2. How Many Categories of Data Types?
  3. What Are the Oracle Built-in Data Types?
  4. What Are the Differences between CHAR and NCHAR?
  5. What Are the Differences between CHAR and VARCHAR2?
  6. What Are the Differences between NUMBER and BINARY_FLOAT?
  7. What Are the Differences between DATE and TIMESTAMP?
  8. What Are the Differences between INTERVAL YEAR TO MONTH and INTERVAL DAY TO SECOND?
  9. What Are the Differences between BLOB and CLOB?
  10. What Are the ANSI Data Types Supported in Oracle?
  11. How To Write Text Literals?
  12. How To Write Numeric Literals?
  13. How To Write Date and Time Literals?
  14. How To Write Date and Time Interval Literals?
  15. How To Convert Numbers to Character Strings?
  16. How To Convert Characters to Numbers?
  17. How To Convert Dates to Characters?
  18. How To Convert Character Strings to Dates?
  19. How To Convert Times to Character Strings?
  20. How To Convert Character Strings to Times?
  21. What Is NULL Value?
  22. How To Use NULL as Conditions?
  23. How To Concatenate Two Text Values?
  24. How To Increment Dates by 1?
  25. How To Calculate Date and Time Differences?
  26. How To Use IN Conditions?
  27. How To Use LIKE Conditions?
  28. How To Use Regular Expression in Pattern Match Conditions?

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