SQL Single Row Functions | Numeric, Character, Date, Conversion & NULL Functions | Creative Notes

Published: 15 January 2026
on channel: Creative Notes
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In this video, we explain Single Row Functions in Oracle SQL in a clear and practical way using real-time examples. Single row functions operate on each row individually and return one result per row, making them extremely important for SQL queries, interviews, and exams.

This tutorial covers numeric, character, date, conversion, and NULL handling functions with easy explanations and SQL queries.

👉🏻 Topics Covered in This Video:

Numeric Functions

Character (String) Functions
1. Case Conversion Functions (UPPER, LOWER, INITCAP)
2. Character Manipulation Functions (CONCAT, SUBSTR, LENGTH)
3. Whitespace Functions (TRIM, LTRIM, RTRIM)
4. Search Functions (INSTR)
5. Padding Functions

Date Functions
SYSDATE, CURRENT_DATE
MONTHS_BETWEEN
ADD_MONTHS
LAST_DAY
TRUNC
Date arithmetic with examples

Conversion Functions
Implicit vs Explicit Conversion
TO_CHAR (Date & Number formatting)
TO_DATE (Character / Number to Date)
TO_NUMBER

NULL & Conditional Functions
1. NVL
2. NVL2
3. NULLIF
4. COALESCE
5. DECODE
6. CASE Expression

👉 What you’ll learn in this SQL Tutorial :

00:00:00 – Introduction to SQL Functions

00:00:13 – Types of SQL Functions (Single Row vs Multiple Row)

00:01:24 – What are Single Row Functions?

00:01:47 – Classification of Single Row Functions

00:01:54 – Numeric Functions in SQL

00:05:02 – Character (String) Functions

00:08:46 – Date Functions

00:15:08 – Conversion Functions

00:16:41 – TO_CHAR Function

00:21:50 – TO_DATE Function

00:23:40 – TO_NUMBER Function

00:24:22 – General / NULL Handling Functions

#OracleSQL #SQLFunctions #SingleRowFunctions #LearnSQL #SQLTutorial #NVL #TO_CHAR #TO_DATE #SQLForBeginners #Database


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