set operators in sql
UNION ALL:
COMBINES THE RESULT OF 2 QUERY AND
DOESN'T REMOVE DUPLICATE ROWS
AND DOESN'T SORT BY FIRST COLUMN
UNION:
COMBINES THE RESULT OF 2 QUERY AND
REMOVES DUPLICATE ROWS AND
SORTS BY FIRST COLUMN
MINUS:
MINUS RETURNS THE LEFT NON MATCHING
DATA AS A RESULT.
INTERSECT:
BASICALLY INTERSECT COMBINES COMMON
ELEMENTS OF BOTH TABLESset operators
Ops P ⨯ \ = ≠
Front ⊂ ⊄ ⊆ ⊈ ⊊
Back ⊃ ⊅ ⊇ ⊉ ⊋
Inside ∀ ∃ ∊ ∍
Objects ∅ ∞ ∆ ∇set operations
UNION ALL:
COMBINES THE RESULT OF 2 QUERY AND
DOESN'T REMOVE DUPLICATE ROWS
AND DOESN'T SORT BY FIRST COLUMN
UNION:
COMBINES THE RESULT OF 2 QUERY AND
REMOVES DUPLICATE ROWS AND
SORTS BY FIRST COLUMN
MINUS:
MINUS RETURNS THE LEFT NON MATCHING
DATA AS A RESULT.
INTERSECT:
BASICALLY INTERSECT COMBINES COMMON
ELEMENTS OF BOTH TABLESCopyright © 2021 Codeinu
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