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Oracle Tutorials - Update Values on Multiple Rows

By: FYIcenter.com

(Continued from previous topic...)

How To Update Values on Multiple Rows?

If the WHERE clause in an UPDATE matches multiple rows, the SET clause will be applied to all matched rows. This rule allows you to update values on multiple rows in a single UPDATE statement. Here is a good example:

UPDATE fyi_links SET counts = 9, notes = 'Wrong URL' 
  WHERE id >= 250;
3 rows updated.

SELECT * FROM fyi_links WHERE id >= 250;
   ID URL                  NOTES         COUNTS CREATED
----- -------------------- ------------ ------- ---------
  250 Retail Sales.com     Wrong URL          9 07-MAY-06
  260 Recruiting.com       Wrong URL          9 07-MAY-06
  270 Payroll.com          Wrong URL          9 07-MAY-06

This statement updated 3 rows with the same new values on all 3 rows.

(Continued on next topic...)

  1. What Are DML Statements?
  2. How To Create a Testing Table?
  3. How To Set Up SQL*Plus Output Format?
  4. How To Insert a New Row into a Table?
  5. How To Specify Default Values in INSERT Statement?
  6. How To Omit Columns with Default Values in INSERT Statement?
  7. How To Insert Multiple Rows with One INSERT Statement?
  8. How To Update Values in a Table?
  9. How To Update Values on Multiple Rows?
  10. How To Use Existing Values in UPDATE Statements?
  11. How To Use Values from Other Tables in UPDATE Statements?
  12. What Happens If the UPDATE Subquery Returns Multiple Rows?
  13. How To Delete an Existing Row from a Table?
  14. How To Delete Multiple Rows from a Table?
  15. How To Delete All Rows from a Table?

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