| 11. 18. SUBSTR |
| 11. 18. 1. | The SUBSTR Function | | |
| 11. 18. 2. | substr(,) and substr(,,) | | |
| 11. 18. 3. | SUBSTR(x, start [, length]) returns a substring of x that begins at the position specified by start. | | |
| 11. 18. 4. | Substr retrieves a portion of the string | | |
| 11. 18. 5. | Retrieval begins at position 5 and again goes for 12 characters | | |
| 11. 18. 6. | A retrieval with no third argument: it starts at begin and retrieves the rest of the string | | |
| 11. 18. 7. | If begin is negative, then retrieval occurs from the right-hand side of original string | | |
| 11. 18. 8. | SUBSTR and INSTR used together | | |
| 11. 18. 9. | Combine SUBSTR and INSTR to deal with a table column | | |
| 11. 18. 10. | Combine DECODE and SUBSTR together | | |
| 11. 18. 11. | Example SELECT output using SUBSTR(). | | |
| 11. 18. 12. | substr birthday | | |
| 11. 18. 13. | Compare substring in where statement | | |
| 11. 18. 14. | Manipulating Strings: SUBSTR and concatenation | | |
| 11. 18. 15. | substr(date value,8)+16 | | |