Essential SQL Functions and Operators for Data Manipulation
SQL provides a comprehensive set of string manipulation functions that enable developers to transform and analyze text data effectively.
CONCAT(): Combines multiple strings into a single string. You can pass two or more arguments to this function, and it will join them sequentially.
UPPER(): Converts all characters in a string to uppercase let ...
Posted on Wed, 17 Jun 2026 17:02:38 +0000 by priya_amb
SQL Aggregate Functions and Grouping Operations
Understanding Aggregate Functions
Aggregate functions enable statistical analysis across multiple rows in database tables. Common use cases include calculating total salaries, finding maximum values, or counting records that meet specific criteria.
Common Aggregate Functions
Functon
Purpose
MAX
Returns maximum value
MIN
Returns minimum ...
Posted on Sat, 13 Jun 2026 17:25:58 +0000 by limke
SQL Aggregate Functions: Monthly Transaction Analysis
Prerequisite Knowledge
The DATE_FORMAT() function converts date and time values into different string representasions. It accepts two parameters: a valid date value and a format string that specifies the output pattern.
DATE_FORMAT(date, expression)
Parameters:
date: The date value to be formatted
expression: A string defining the output form ...
Posted on Mon, 18 May 2026 17:48:48 +0000 by yashvant