KPMG SQL Interview Question | Advanced SQL Interview Question | SQL Interview Question no 13
In this video, we have talked about the aggregate function String aggregate function in SQL server.
The STRING_AGG function in SQL Server is a powerful tool that lets you concatenate or join strings from multiple rows into a single result, making it easier to format data for reports, exports, or displays. With STRING_AGG, you can specify a separator between values, like a comma or hyphen, which is ideal for creating lists or summaries. This function is handy when dealing with large datasets and can simplify grouping data into a single, readable format. Introduced in SQL Server 2017, STRING_AGG helps streamline queries that previously required complex workarounds or XML path methods for concatenation.
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-------------------------CREATE TABLE SCRIPT-----------------------------------------
create table support_(name varchar(20), address varchar(20), email varchar(50), floor_ int, resources varchar(20) )
insert into support_ values ('A','BANGALORE','A@GMAIL.COM',1,'CPU')
insert into support_ values ('A','BANGALORE','A1@GMAIL.COM',1,'CPU')
insert into support_ values ('A','BANGALORE','A2@GMAIL.COM',2,'DESKTOP')
insert into support_ values ('B','BANGALORE','B@GMAIL.COM',2,'DESKTOP')
insert into support_ values ('B','BANGALORE','B1@GMAIL.COM',2,'DESKTOP')
insert into support_ values ('B','BANGALORE','B2@GMAIL.COM',1,'MONITOR')
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