Amazon AWS SDK Guide d'installation Page 81
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Noté. / 5. Basé sur avis des utilisateurs
Let's say we want a list of all "1201" errors that occurred in the last 15 minutes. We could issue a single query that
will search by the primary key of the table and retrieve up to 1MB of the items. However, a better approach is to use
the query iterator to retrieve the entire list of all items matching the query.
$iterator = $client->getIterator('Query', array(
'TableName' => 'errors',
'KeyConditions' => array(
'id' => array(
'AttributeValueList' => array(
array('N' => '1201')
),
'ComparisonOperator' => 'EQ'
),
'time' => array(
'AttributeValueList' => array(
array('N' => strtotime("-15 minutes"))
),
'ComparisonOperator' => 'GT'
)
)
));
// Each item will contain the attributes we added
foreach ($iterator as $item) {
// Grab the time number value
echo $item['time']['N'] . "\n";
// Grab the error string value
echo $item['error']['S'] . "\n";
}
Scan
A scan operation scans the entire table. You can specify filters to apply to the results to refine the values returned to
you, after the complete scan. Amazon DynamoDB puts a 1MB limit on the scan (the limit applies before the results
are filtered).
A scan can be useful for more complex searches. For example, we can retrieve all of the errors in the last 15
minutes that contain the word "overflow":
$iterator = $client->getIterator('Scan', array(
'TableName' => 'errors',
'ScanFilter' => array(
'error' => array(
'AttributeValueList' => array(
array('S' => 'overflow')
),
'ComparisonOperator' => 'CONTAINS'
),
'time' => array(
'AttributeValueList' => array(
array('N' => strtotime('-15 minutes'))
),
'ComparisonOperator' => 'GT'
)
)
));
// Each item will contain the attributes we added
foreach ($iterator as $item) {
// Grab the time number value
echo $item['time']['N'] . "\n";
// Grab the error string value
Amazon DynamoDB
69
- AWS SDK for PHP 1
- Contents 3
- Requirements 14
- Installation 14
- Installing via Phar 15
- Getting Started Guide 16
- Creating a client object 17
- Performing service operations 18
- Detecting and handling errors 19
- Migration Guide 20
- What's Different? 21
- Required Regions 22
- Client Factories 22
- Service Operations 22
- Responses 23
- Exceptions 23
- Iterators 24
- From Version 2 of the SDK 25
- From Version 1 of the SDK 25
- Side-by-side Guide 27
- Without Composer 28
- Complete Examples 29
- Final Notes 31
- Introduction 31
- Caching IAM role credentials 32
- Getting temporary credentials 36
- Configuring the SDK 37
- Client configuration options 39
- Specifying a region 40
- Setting a custom endpoint 40
- Command Objects 41
- Using command objects 42
- Using requests and responses 43
- Basic Configuration 44
- Waiter Objects 45
- Waiter Events 45
- Custom Waiters 45
- Waiter Definitions 46
- Iterator Objects 48
- Iterator Events 48
- Modeled Responses 49
- Using data in the model 50
- Static Client Facades 51
- Why Use Client Facades? 52
- Performance Guide 54
- Installing on Amazon Linux 55
- Modifying APC settings 55
- From the PHP documentation 56
- Uninstall Xdebug 56
- Install PECL uri_template 56
- Turn off parameter validation 56
- Comparing SDK1 and SDK2 58
- How do I disable SSL? 59
- Auto Scaling 61
- AWS CloudFormation 63
- Amazon CloudFront 64
- Amazon CloudSearch 70
- AWS CloudTrail 71
- Amazon CloudWatch 72
- AWS Data Pipeline 74
- AWS Direct Connect 75
- Amazon DynamoDB 76
- Creating tables 77
- Updating a table 78
- Describing a table 78
- Listing tables 78
- Query and scan 80
- Deleting a table 82
- Local secondary indexes 82
- Using the WriteRequestBatch 84
- Amazon DynamoDB (2011-12-05) 85
- Amazon Elastic Compute Cloud 91
- Amazon ElastiCache 94
- AWS Elastic Beanstalk 96
- Elastic Load Balancing 97
- Amazon Elastic Transcoder 98
- Amazon Elastic MapReduce 100
- Amazon Glacier 101
- This guide is incomplete 102
- API Reference 102
- Creating a client 102
- AWS Import/Export 104
- Amazon Kinesis 105
- Creating a stream 106
- AWS OpsWorks 107
- Amazon Redshift 110
- Creating a cluster 111
- Creating snapshots 111
- Amazon Route 53 112
- Amazon Simple Storage Service 114
- Uploading objects 115
- Listing your buckets 116
- Downloading objects 117
- Saving objects to a file 118
- Creating a pre-signed URL 119
- Amazon S3 stream wrapper 121
- Syncing data with Amazon S3 121
- Customizing the download sync 122
- Cleaning up 123
- Amazon Simple Email Service 124
- Amazon SimpleDB 125
- Creating domains 126
- List all domains 126
- Retrieving a domain 126
- Adding items 126
- Retrieving items 127
- Deleting items 128
- Deleting domains 128
- Amazon Simple Queue Service 130
- Sending messages 131
- Receiving messages 131
- AWS Storage Gateway 132
- AWS Security Token Service 134
- Using Temporary Credentials 135
- AWS Support 136
- DynamoDB Session Handler 139
- Configuration 140
- Session Locking 142
- Garbage Collection 142
- Amazon S3 Stream Wrapper 143
- Uploading data 144
- Other object functions 145
- Working with buckets 146
- Getting Started 147
- In-Depth Guides 147
- Service-Specific Guides 148
- Articles from the Blog 150
- Presentations 151
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