![]() ![]() All words that begin with bar in whatever case are replaced by foo. \m means match only at the beginning of each word. ) Code language: SQL (Structured Query Language) ( sql ) foo sheepfoo foo foos foosheep In the following example, we use both g and i flags, so all occurrences of bar or Bar, BAR, etc., are replaced by foo. ![]() SELECTĬode language: SQL (Structured Query Language) ( sql ) Bar sheepfoo foo foos foosheep Notice that Bar, BAR, or bAR will not be changed. In the following example, we use g flag, all the occurrences of bar is replaced by foo. ) Code language: SQL (Structured Query Language) ( sql ) foo foobar bar bars In the following example, because we use i flag, it ignores case and replaces the first occurrence of Bar or bar with foo. ) Code language: SQL (Structured Query Language) ( sql ) bar bar foobar barfoo The following are examples of using the REGEXP_REPLACE() function. It takes efforts and experiments to understand how the REGEXP_REPLACE() function works. PostgreSQL REGEXP_REPLACE() function examples g stands for global If g flag is used, the function replaces all occurrences of substrings that match the pattern. For example, i means case-insensitive matching or ignore case.
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