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Oracle Tutorials - Create a Test Table for DML Testing

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How To Create a Testing Table?

If you want to practice DML statements, you should create a testing table as shown in the script below:

  url VARCHAR2(80) NOT NULL,
  notes VARCHAR2(1024),
  counts NUMBER,
  created DATE DEFAULT (sysdate));
Table created.

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

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  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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