How To Use Regular Expression in Pattern Match Conditions in Oracle?
Submitted by: AdministratorIf you have a pattern that is too complex for LIKE to handle, you can use the regular expression pattern patch function: REGEXP_LIKE().
The following script provides you some good examples:
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '.*ggl.*',
'i') THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '.*com$',
'i') THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '^F.*','i')
THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
Submitted by: Administrator
The following script provides you some good examples:
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '.*ggl.*',
'i') THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '.*com$',
'i') THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
SELECT CASE WHEN REGEXP_LIKE ('globalguideline.com', '^F.*','i')
THEN 'TRUE' ELSE 'FALSE' END FROM DUAL;
TRUE
Submitted by: Administrator
Read Online Oracle Database Job Interview Questions And Answers
Top Oracle Database Questions
☺ | How To Invoke the Data Pump Import Utility? |
☺ | How To Write Numeric Literals in Oracle? |
☺ | What Happens to Indexes If You Drop a Table? |
☺ | How To Retrieve Data from an Explicit Cursor? |
☺ | What Is Oracle Open Database Communication (ODBC)? |
Top DB Oracle Categories
☺ | Oracle PL-SQL Interview Questions. |
☺ | Oracle DBA Interview Questions. |
☺ | Oracle D2K Interview Questions. |
☺ | OCI Interview Questions. |
☺ | Oracle RMAN Interview Questions. |