# Predicate
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Stores information for generating Amplify DataStore queries. Use a `Predicate` to retrieve a subset of the data in a collection.

## Contents
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 ** and **   <a name="amplifyuibuilder-Type-Predicate-and"></a>
A list of predicates to combine logically.  
Type: Array of [Predicate](#API_Predicate) objects  
Required: No

 ** field **   <a name="amplifyuibuilder-Type-Predicate-field"></a>
The field to query.  
Type: String  
Required: No

 ** operand **   <a name="amplifyuibuilder-Type-Predicate-operand"></a>
The value to use when performing the evaluation.  
Type: String  
Required: No

 ** operandType **   <a name="amplifyuibuilder-Type-Predicate-operandType"></a>
The type of value to use when performing the evaluation.  
Type: String  
Pattern: `boolean|string|number`   
Required: No

 ** operator **   <a name="amplifyuibuilder-Type-Predicate-operator"></a>
The operator to use to perform the evaluation.  
Type: String  
Required: No

 ** or **   <a name="amplifyuibuilder-Type-Predicate-or"></a>
A list of predicates to combine logically.  
Type: Array of [Predicate](#API_Predicate) objects  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/amplifyuibuilder-2021-08-11/Predicate) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/amplifyuibuilder-2021-08-11/Predicate) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/amplifyuibuilder-2021-08-11/Predicate)