inner join vs outer join

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showing results for - "inner join vs outer join"
Miranda
27 Mar 2019
1-- Rows with ID existing in both a and b
2-- JOIN is equivalent to INNER JOIN
3SELECT a.ID, a.NAME, b.VALUE1 FROM table1 a 
4  JOIN table2 b ON a.ID = b.ID
5WHERE a.ID >= 1000;
6-- ⇓ Test it ⇓ (Fiddle source link)
Emma
07 Jul 2018
11. Can Outer class be static? --> No
22. Can inner class be static? --> Yes
33. Can you create an object from the inner class? --> Only if it's static
44. Can we have main method in inner class ? --> Only if it's static
55. Inner class can only be extended if it's static.
Cyprien
30 Mar 2018
1INNER JOIN:
2is used when retrieving data from multiple
3tables and will return only matching data.
4
5LEFT OUTER JOIN:
6is used when retrieving data from
7multiple tables and will return
8left table and any matching right table records.
9
10RIGHT OUTER JOIN:
11is used when retrieving data from
12multiple tables and will return right
13table and any matching left table records
14
15FULL OUTER JOIN:
16is used when retrieving data from
17multiple tables and will return both
18table records, matching and non-matching.
Leonardo
19 Jun 2019
1INNER JOIN:
2is used when retrieving data from multiple
3tables and will return only matching data.
4
5
6FULL OUTER JOIN:
7is used when retrieving data from
8multiple tables and will return both
9table records, matching and non-matching.
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