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We can use the ANDoperator for the union !!? what is the difference between using conditions combined them with AND and UNION
UNION && AND
5 Respostas
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union is used to make a general variable that can store any type (which are types of members)
so when assigning a value to a member in a union variable , the old value will be lost
and checks if the left value is non-zero AND the right value is non-zero to return 1 or 0
and cannot store but union can
I think I didn't understand again
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I didn't understand
can you elaborate please
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welcome
I hope that you got what you're looking for
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I'm sorry I didn't pay attention to the lesson
1/UNION combines multiple datasets into a single dataset.
and
2/when we are using AND to assemble conditions in WHERE
Also combines multiple datasets to single dataset.
Where is the difference between using 1 and using 2 ?
the same thing with INTERSECT and OR
Or there is no difference🙄🙄
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ABADA S 😃😃
Thank you very much I understand u