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15 Best SQL Queries for Developers [SQL Queries]

SQL GROUP BY clause

The “GROUP BY” clause groups records into summary rows and returns one records for each group. It is also involves aggregates like COUNT, MAX, SUM, AVG and so on…

The “GROUP BY” can be group by the single or multiple columns.

Syntax:-
SELECT ColumnNames 
 FROM TableName WHERE Condition
 GROUP BY columnNames

Example:-
SELECT DISTINCT CountryName, CountryCode
 FROM Countries
GROUP BY CountryName, CountryCode

Result:-
CountryName CountryCode
---------------------------
India           IN
Nepal           NP
Rasia           RA
USA           US

Stayed Informed SQL Server Query and Examples

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