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MySQL Tutorial - Creating a Test Table

By: FYIcenter.com

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How To Create a Testing Table?

If you want to practice DML statements, like INSERT, UPDATE and DELETE, you should create a testing table. The tutorial exercise shows you a good example:

mysql> CREATE TABLE fyi_links (id INTEGER PRIMARY KEY,
  url VARCHAR(80) NOT NULL,
  notes VARCHAR(1024),
  counts INTEGER,
  created TIMESTAMP DEFAULT CURRENT_TIMESTAMP());
  
Query OK, 0 rows affected (0.08 sec)

You should keep this table to practice other tutorial exercises presented in this collection.

(Continued on next topic...)

  1. What Are DML Statements?
  2. How To Create a Testing Table?
  3. How To Insert a New Row into a Table?
  4. How To Specify Default Values in INSERT Statement?
  5. How To Omit Columns with Default Values in INSERT Statement?
  6. What Happens If Unique Value Constraints Are Violated?
  7. How To Insert Multiple Rows with One INSERT Statement?
  8. How To Update Values in a Table?
  9. How To Update Column Values on Multiple Rows?
  10. How To Use Existing Column Values in the SET Clause?
  11. Is the Order of Columns in the SET Clause Important?
  12. How To Use Values from Other Tables in UPDATE Statements?
  13. What Happens If the UPDATE Subquery Returns No Rows?
  14. What Happens If the UPDATE Subquery Returns Multiple Rows?
  15. How To Delete an Existing Row from a Table?
  16. How To Delete Multiple Rows from a Table?
  17. How To Delete All Rows in a Table?

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