The next Oracle REGEP_LIKE example would retrieve all names that contain a letter in the range of ‘d’ and ‘g’, followed by the letter ‘a’. SELECT * FROM Employee WHERE regexp_like (name , ‘[d-g]a’) ; Output : Example 11:Using period (.) Operator The operator (.) calle...
Example 1 : REGEXP_SUBSTRThe data in a column is free text, but may include a 4 digit year.DROP TABLE t1; CREATE TABLE t1 ( data VARCHAR2(50) ); INSERT INTO t1 VALUES ('FALL 2014'); INSERT INTO t1 VALUES ('2014 CODE-B'); INSERT INTO t1 VALUES ('CODE-A 2014 CODE-D'); ...
The following example returns the first names that contain exactly two letters L or 'l': SELECT first_name FROM employees WHERE REGEXP_LIKE( first_name, 'l{2}', 'i' ) ORDER BY first_name;Code language: SQL (Structured Query Language) (sql) In this tutorial, you have learned how to...
Equivalence Class '[= =]' in Regular Expressions Oracle Database also supports equivalence classes through the [= =] syntax as recommended by the POSIX standard. A base letter and all of the accented versions of the base constitute an equivalence class. For example, the equivalence ...
The next Oracle REGEP_LIKE example would retrieve all names that contain a letter in the range of ‘d’ and ‘g’, followed by the letter ‘a’. SELECT*FROMnamesWHEREregexp_like(name,'[d-g]a');NAME---Vargas Baida Fleaur Banda Using the Period (.) Operator The...
All spaces in the regular expression that you want to be matched in strings must be escaped with a backslash (\) character. Examples This example creates a table containing several strings to demonstrate regular expressions. => CREATE TABLE t (v VARCHAR); CREATE TABLE => CREATE PROJECTION t1...
ORACLE中的支持正则表达式的函数主要有下面四个: 1,REGEXP_LIKE :与LIKE的功能相似 2,REGEXP_INSTR :与INSTR的功能相似 3,REGEXP_SUBSTR :与SUBSTR的功能相似 4,REGEXP_REPLACE :与REPLACE的功能相似 它们在用法上与Oracle SQL 函数LIKE、INSTR、SUBSTR 和REPLACE 用法相同, ...
---+ 1 row in set Mouse selected content, quick feedback problems Select the content in the document with doubts, you can quickly feedback the problem, we will follow up to deal with. For example: V4.2.1 What is OceanBase Database Get...
The first Oracle REGEXP_LIKE condition example that we will look at involves using the|pattern. Let's explain how the|pattern works in the Oracle REGEXP_LIKE condition. For example: SELECT last_name FROM contacts WHERE REGEXP_LIKE (last_name, 'Anders(o|e|a)n'); ...
This is on the REGEXP_LIKE() function in Oracle databases which allows us to perform a regular expression pattern matching on a given set of values.