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Logical quantifier functions

Logical quantifiers can be used to assert conditions with arrays in Profile Query Language (PQL). More information about other PQL functions can be found in the Profile Query Language overview.

Exists

The exists function determines the existence of an item in an array, provided it satisfies the provided condition.

Format

exists {VARIABLE} from {EXPRESSION} where {CONDITION}
exists {VARIABLE} from {EXPRESSION} : {CONDITION}

Example

The following PQL query gets all events which has a price greater than $50 or has a SKU of 鈥淧S鈥�.

exists E from xEvent where (E.commerce.item.price > 50), I from E.productListItems where I.SKU = "PS"

For all

The forall function determines all items in an array that satisfy all the given conditions.

Format

forall {VARIABLE} from {EXPRESSION} where {CONDITION}
forall {VARIABLE} from {EXPRESSION} : {CONDITION}

Example

The following PQL query gets all events which has a price greater than $50 and has a SKU of 鈥淧S鈥�.

forall E from xEvent where (E.commerce.item.price > 50), I from E.productListItems where I.SKU = "PS"

Next steps

Now that you have learned about logical quantifiers, you can use them within your PQL queries. For more information about other PQL functions, please read the Profile Query Language overview.