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Copy path16_Distinct.sql
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60 lines (49 loc) · 2.44 KB
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/*============================= DISTINCT =====================================
DISTINCT komutu bir SORGU ifadesinde benzer olan record filtrelemek
için kullanılır. Dolayısıyla seçilen sutun yada sutunlar için benzersiz veri
içeren record sorgulamayi sağlar.
SYNTAX
-------
SELECT DISTINCT sutun_adi1, sutun_adi2, sutun_adi3
FROM tablo_adı;
==============================================================================*/
use JavaCan;
CREATE TABLE javaManav
(
isim varchar(50),
urun_adi varchar(50),
urun_miktari int
);
INSERT INTO javaManav VALUES( 'IrmIzan', 'Elma', 5);
INSERT INTO javaManav VALUES( 'Ipek', 'Armut', 3);
INSERT INTO javaManav VALUES( 'Haluk', 'Elma', 2);
INSERT INTO javaManav VALUES( 'Irecep', 'Uzum', 4);
INSERT INTO javaManav VALUES( 'IrmIzan', 'Armut', 2);
INSERT INTO javaManav VALUES( 'Halime', 'Elma', 3);
INSERT INTO javaManav VALUES( 'IrmIzan', 'Uzum', 4);
INSERT INTO javaManav VALUES( 'Irecep', 'Armut', 2);
INSERT INTO javaManav VALUES( 'Irecep', 'Elma', 3);
INSERT INTO javaManav VALUES( 'Haluk', 'Uzum', 4);
INSERT INTO javaManav VALUES( 'MIstaaa', null, 2);
select * from javaManav;
/* ----------------------------------------------------------------------------
task01-> satılan kaç farklı meyve türu oldugunu listeleyen query create ediniz...
-----------------------------------------------------------------------------*/
select count(distinct urun_adi) as urun_turu_adedi
from javanamav;
/* -----------------------------------------------------------------------------
-- task02-> farkli kisilerin sattiği farklı urunleri listeleyen query create ediniz...
------------------------------------------------------------------------------*/
select distinct isim, urun_adi
from javamanav
where urun_adi is not null;
-- task02.5 -> farklı urunleri satan farkli kisileri listeleyen query create ediniz...
select distinct urun_adi,isim
from javamanav
where urun_adi is not null;
/* ----------------------------------------------------------------------------
task03-> satılan meyvelerin urun_miktarlarinin benzersiz olanlarının toplamlarini listeleyen query create ediniz...
-----------------------------------------------------------------------------*/
select urun_adi,sum(distinct urun_miktari) as toplam_urun_miktari
from javamanav
group by urun_adi;