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SQL AND OR in WHERE query Commands and statements |
SQL AND OR statement can be used with WHERE clause to list a set of records
with matching combination of a table. We can use AND OR SQL in query with NOT combination also to filter
out some records. This is our table
| id |
name |
class |
mark |
| 1 |
John Deo |
Four |
75 |
| 2 |
Max Ruin |
Three |
85 |
| 3 |
Arnold |
Three |
55 |
| 4 |
Krish Star |
Four |
60 |
| 5 |
John Mike |
Four |
60 |
| 6 |
Alex John |
Four |
55 |
| 7 |
My John Rob |
Fifth |
78 |
We will apply AND command to display records of class Four with more
than 70 mark.
SELECT * FROM student WHERE class='Four' AND
mark >70
| id |
name |
class |
mark |
| 1 |
John Deo |
Four |
75 |
WE can see the record returned is class= Four and mark is more than 70.
Here both the conditions are satisfied.
SELECT * FROM student WHERE class='Four' OR mark >70
| id |
name |
class |
mark |
| 1 |
John Deo |
Four |
75 |
| 2 |
Max Ruin |
Three |
85 |
| 4 |
Krish Star |
Four |
60 |
| 5 |
John Mike |
Four |
60 |
| 6 |
Alex John |
Four |
55 |
| 7 |
My John Rob |
Fifth |
78 |
Here the records returned are either belongs to class Four OR having mark more
than 70. Any one of the two condition is to be satisfied.
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