Usage of any and all in oracle

ANY and ALL are operators used in Oracle for conditional checking of set elements. ANY checks whether any element in the set satisfies the condition, ALL checks whether all elements satisfy the condition. ANY is often used to find any item that satisfies a condition, while ALL is used to verify that all items satisfy the condition.

Usage of ANY and ALL in Oracle

What are ANY and ALL?

ANY and ALL are operators used in Oracle to check whether a collection element satisfies a specified condition.

ANY operator

• Syntax: ANY(collection_expression) condition
• Description: Check whether there is at least one element in the collection that satisfies the given condition.
• Return value: TRUE if the condition is met; otherwise, FALSE.

Example:

<code class="sql">SELECT *
FROM employees
WHERE ANY(salary > 5000);</code>

The above query returns any employees with a salary greater than $5000.

ALL operator

• Syntax: ALL(collection_expression) condition
• Description: Check whether all elements in the collection satisfy the given condition.
• Return value: If all elements meet the conditions, return TRUE; otherwise, return FALSE.

Example:

<code class="sql">SELECT *
FROM employees
WHERE ALL(salary < 5000);</code>

The above query returns all employees with a salary less than $5,000.

The difference between ANY and ALL

• ANY checks whether at least one element in the set meets the condition, while ALL checks whether all elements meet the condition.
• ANY is typically used to find any item that meets a specific condition, while ALL is used to verify that all items meet a specific condition.

Usage scenarios

• ANY:

  • Find items that meet specific conditions any record or value.
  • Check whether there are outliers.

• ALL:

  • Ensures that all records or values ​​meet certain conditions.
  • Verify data integrity.

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