December 2010
Intermediate to advanced
451 pages
11h 16m
English
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7-15. Finding and Replacing Text Within a String
Problem
You want to replace each occurrence of a given string within a body of text.
Solution
Use the REGEXP_REPLACE function to match a pattern of text against a given body of text, and replace all matching occurrences with a new string. In the following function, the REGEXP_REPLACE function is used to replace all occurrences of the JOB_TITLE ‘Programmer’ with the new title of ‘Developer’.
DECLARE
CURSOR job_cur IS
SELECT *
FROM jobs;
job_rec job_cur%ROWTYPE;
new_job_title jobs.job_title%TYPE;
BEGIN
FOR job_rec IN job_cur LOOP
IF REGEXP_INSTR(job_rec.job_title,'Programmer') > 0 THEN
new_job_title := REGEXP_REPLACE(job_rec.job_title, 'Programmer', 'Developer'); ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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