Functions & Operators in PostgreSQL: String Functions & Operators | Post...

Welcome back to our PostgreSQL Full Playlist! 🎥 In this episode (#61), we explore Functions & Operators in PostgreSQL, focusing on String Functions and Operators.

Strings are everywhere in databases – from names and emails to product codes and logs. PostgreSQL gives us a powerful set of tools to manipulate, search, format, and transform strings effectively.

In this tutorial, you’ll learn:

• ✅ String concatenation using operators

• ✅ Length functions: char_length, octet_length, bit_length

• ✅ Case conversion with upper() and lower()

• ✅ Trimming & padding: ltrim, rtrim, btrim, lpad, rpad

• ✅ Extracting substrings with substring() & overlay()

• ✅ Searching inside strings with position() & strpos()

• ✅ Advanced functions: concat, concat_ws, initcap, reverse, replace, repeat

• ✅ Splitting strings with string_to_array, regexp_split_to_table

• ✅ Regex power: regexp_like, regexp_replace, regexp_matches, regexp_substr

• ✅ Dynamic SQL formatting with format()

💡 By the end of this video, you’ll be confident in cleaning data, extracting patterns, and formatting text like a pro in PostgreSQL.

👉 Don’t forget to check out the PostgreSQL Full Playlist for more advanced topics and step-by-step learning.

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