SQL>
SQL> -- create demo table
SQL> create table myTable(
2 id NUMBER(2),
3 value VARCHAR(50)
4 );
Table created.
SQL>
SQL> insert into myTable(id, value)values(1,'1234 4th St. Vancouver');
1 row created.
SQL> insert into myTable(id, value)values(2,'4 Maple Ct. New York');
1 row created.
SQL> insert into myTable(id, value)values(3,'4321 Green Blvd. London');
1 row created.
SQL> insert into myTable(id, value)values(4,'33 Third St. Toronto');
1 row created.
SQL> insert into myTable(id, value)values(5,'One First Drive. Queen');
1 row created.
SQL> insert into myTable(id, value)values(6,'1664 1/2 Springhill Ave');
1 row created.
SQL> insert into myTable(id, value)values(7,'665 Fall Ave. Linken');
1 row created.
SQL>
SQL> select * from mytable;
ID VALUE
---------- --------------------------------------------------
1 1234 4th St. Vancouver
2 4 Maple Ct. New York
3 4321 Green Blvd. London
4 33 Third St. Toronto
5 One First Drive. Queen
6 1664 1/2 Springhill Ave
7 665 Fall Ave. Linken
7 rows selected.
SQL>
SQL>
SQL> SELECT value, REGEXP_INSTR(value,'ing') where_it_is
2 FROM myTable
3 WHERE REGEXP_INSTR(value,'ing') > 0;
VALUE WHERE_IT_IS
-------------------------------------------------- -----------
1664 1/2 Springhill Ave 13
SQL>
SQL>
SQL> drop table myTable;
Table dropped.
SQL>
SQL>
18.2.REGEXP_INSTR |
| 18.2.1. | Regexp_Instr returns the location (beginning) of a pattern in a given string |
| 18.2.2. | REGEXP_INSTR(x, pattern [, start [, occurrence [, return_option [, match_option]]]]) searches for pattern in x. |
| 18.2.3. | Regexp_Instr |
| 18.2.4. | Parameters is a field that may be used to define how one wants the search to proceed: |
| 18.2.5. | Find the 's' and ignore case. |
| 18.2.6. | The simplest regular expression matches letters, letter for letter |
| 18.2.7. | SELECT REGEXP_INSTR('Two is bigger than One','One') where_it_is |
| 18.2.8. | Occurrence refers to the first, second, third, etc., occurrence of the pattern in S. The default is 1 (first). |
| 18.2.9. | Return-option returns the position of the start or end of the matched string. |
| 18.2.10. | The Return-option is set to 1 to indicate the end of the found pattern |
| 18.2.11. | Returns the position of the second occurrence that matches the regular expression s[[:alpha:]]{3} starting at position 1: |
| 18.2.12. | Returns the position of the second occurrence that matches the letter o starting at position 10 using REGEXP_INSTR() |
| 18.2.13. | Specify any series of letters and find matches, just like INSTR |
| 18.2.14. | regexp_instr(comments, '[^ ]+', 1, 9) > 0 |