REGEXP_INSTR(description,'[aeiou][aeiou]'): Look for two consecutive vowels



SQL> create table TestTable(
  2    ID                    VARCHAR2(4 BYTE)         NOT NULL,
  3    Description           VARCHAR2(30 BYTE)
  4  )
  5  /

Table created.

SQL>
SQL>
SQL> insert into TestTable (ID, Description) values('1','1234 5th Street');

1 row created.

SQL> insert into TestTable (ID, Description) values('2','1 Culloden Street');

1 row created.

SQL> insert into TestTable (ID, Description) values('3','1234 Road');

1 row created.

SQL> insert into TestTable (ID, Description) values('4','33 Thrid Road');

1 row created.

SQL> insert into TestTable (ID, Description) values('5','One than another');

1 row created.

SQL> insert into TestTable (ID, Description) values('6','2003 Movie');

1 row created.

SQL> insert into TestTable (ID, Description) values('7','Start With Letters');

1 row created.

SQL>
SQL> select * from TestTable;

ID   DESCRIPTION
---- ------------------------------
1    1234 5th Street
2    1 Culloden Street
3    1234 Road
4    33 Thrid Road
5    One than another
6    2003 Movie
7    Start With Letters

7 rows selected.

SQL>
SQL>
SQL>
SQL>
SQL> -- REGEXP_INSTR(description,'[aeiou][aeiou]'): Look for two consecutive vowels:
SQL>
SQL> SELECT description,
  2      REGEXP_INSTR(description,'[aeiou][aeiou]')
  3      where_pattern_starts
  4  FROM testTable;

DESCRIPTION                    WHERE_PATTERN_STARTS
------------------------------ --------------------
1234 5th Street                                  13
1 Culloden Street                                15
1234 Road                                         7
33 Thrid Road                                    11
One than another                                  0
2003 Movie                                        9
Start With Letters                                0

7 rows selected.

SQL>
SQL>
SQL>
SQL> drop table TestTable;

Table dropped.

SQL>
SQL>

Related examples in the same category

1.	[whatever]: a match of whatever set of characters is included inside the brackets in any order
2.	A match for any vowel followed by an 'r' or 'p'
3.	Select only addresses that contain vowels

REGEXP_INSTR(description,'[aeiou][aeiou]'): Look for two consecutive vowels : Brackets « Regular Expressions « Oracle PL / SQL

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