An example of a valid inequality range filter.

Demonstrates a valid inequality range filter.

Code sample

C#

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode C# API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

Query query = new Query("Task")
{
    Filter = Filter.And(Filter.GreaterThan("created", _startDate),
        Filter.LessThan("created", _endDate))
};

Go

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode Go API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

query := datastore.NewQuery("Task").
	FilterField("Created", ">", time.Date(1990, 1, 1, 0, 0, 0, 0, time.UTC)).
	FilterField("Created", "<", time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC))

Java

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode Java API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

Query<Entity> query =
    Query.newEntityQueryBuilder()
        .setKind("Task")
        .setFilter(
            CompositeFilter.and(
                PropertyFilter.gt("created", startDate), PropertyFilter.lt("created", endDate)))
        .build();

Node.js

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode Node.js API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

const query = datastore
  .createQuery('Task')
  .filter(
    and([
      new PropertyFilter('created', '>', new Date('1990-01-01T00:00:00z')),
      new PropertyFilter('created', '<', new Date('2000-12-31T23:59:59z')),
    ]),
  );

PHP

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode PHP API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

$query = $datastore->query()
    ->kind('Task')
    ->filter('created', '>', new DateTime('1990-01-01T00:00:00z'))
    ->filter('created', '<', new DateTime('2000-12-31T23:59:59z'));

Python

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode Python API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

from google.cloud import datastore

# For help authenticating your client, visit
# https://cloud.google.com/docs/authentication/getting-started
client = datastore.Client()

import datetime

start_date = datetime.datetime(1990, 1, 1)
end_date = datetime.datetime(2000, 1, 1)
query = client.query(kind="Task")
query.add_filter(filter=datastore.query.PropertyFilter("created", ">", start_date))
query.add_filter(filter=datastore.query.PropertyFilter("created", "<", end_date))

Ruby

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries. For more information, see the Datastore mode Ruby API reference documentation.

To authenticate to Datastore mode, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

query = datastore.query("Task")
                 .where("created", ">=", Time.utc(1990, 1, 1))
                 .where("created", "<", Time.utc(2000, 1, 1))

What's next

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