SQL Server
SQL Server
DynamoDB - Query
See more Amazon DynamoDB Examples
The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).Chilkat SQL Server Downloads
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
DECLARE @hr int
DECLARE @iTmp0 int
DECLARE @sTmp0 nvarchar(4000)
DECLARE @success int
SELECT @success = 0
DECLARE @rest int
EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT
IF @hr <> 0
BEGIN
PRINT 'Failed to create ActiveX component'
RETURN
END
-- Implements the following CURL command:
-- curl -X POST https://dynamodb.us-west-2.amazonaws.com/ \
-- -H "Accept-Encoding: identity" \
-- -H "Content-Type: application/x-amz-json-1.0" \
-- -H "Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>" \
-- -H "X-Amz-Date: <Date>" \
-- -H "X-Amz-Target: DynamoDB_20120810.Query" \
-- -d '{
-- "TableName": "Reply",
-- "IndexName": "PostedBy-Index",
-- "Limit": 3,
-- "ConsistentRead": true,
-- "ProjectionExpression": "Id, PostedBy, ReplyDateTime",
-- "KeyConditionExpression": "Id = :v1 AND PostedBy BETWEEN :v2a AND :v2b",
-- "ExpressionAttributeValues": {
-- ":v1": {"S": "Amazon DynamoDB#DynamoDB Thread 1"},
-- ":v2a": {"S": "User A"},
-- ":v2b": {"S": "User C"}
-- },
-- "ReturnConsumedCapacity": "TOTAL"
-- }'
-- Use the following online tool to generate REST code from a CURL command
-- Convert a cURL Command to REST Source Code
DECLARE @authAws int
EXEC @hr = sp_OACreate 'Chilkat.AuthAws', @authAws OUT
EXEC sp_OASetProperty @authAws, 'AccessKey', 'AWS_ACCESS_KEY'
EXEC sp_OASetProperty @authAws, 'SecretKey', 'AWS_SECRET_KEY'
-- Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
EXEC sp_OASetProperty @authAws, 'Region', 'us-west-2'
EXEC sp_OASetProperty @authAws, 'ServiceName', 'dynamodb'
-- SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
EXEC sp_OAMethod @rest, 'SetAuthAws', @success OUT, @authAws
-- URL: https://dynamodb.us-west-2.amazonaws.com/
DECLARE @bTls int
SELECT @bTls = 1
DECLARE @port int
SELECT @port = 443
DECLARE @bAutoReconnect int
SELECT @bAutoReconnect = 1
EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'dynamodb.us-west-2.amazonaws.com', @port, @bTls, @bAutoReconnect
IF @success <> 1
BEGIN
EXEC sp_OAGetProperty @rest, 'ConnectFailReason', @iTmp0 OUT
PRINT 'ConnectFailReason: ' + @iTmp0
EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @rest
EXEC @hr = sp_OADestroy @authAws
RETURN
END
-- Note: The above code does not need to be repeatedly called for each REST request.
-- The rest object can be setup once, and then many requests can be sent. Chilkat will automatically
-- reconnect within a FullRequest* method as needed. It is only the very first connection that is explicitly
-- made via the Connect method.
-- Use this online tool to generate code from sample JSON:
-- Generate Code to Create JSON
-- The following JSON is sent in the request body.
-- {
-- "TableName": "Reply",
-- "IndexName": "PostedBy-Index",
-- "Limit": 3,
-- "ConsistentRead": true,
-- "ProjectionExpression": "Id, PostedBy, ReplyDateTime",
-- "KeyConditionExpression": "Id = :v1 AND PostedBy BETWEEN :v2a AND :v2b",
-- "ExpressionAttributeValues": {
-- ":v1": {
-- "S": "Amazon DynamoDB#DynamoDB Thread 1"
-- },
-- ":v2a": {
-- "S": "User A"
-- },
-- ":v2b": {
-- "S": "User C"
-- }
-- },
-- "ReturnConsumedCapacity": "TOTAL"
-- }
DECLARE @json int
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'TableName', 'Reply'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'IndexName', 'PostedBy-Index'
EXEC sp_OAMethod @json, 'UpdateInt', @success OUT, 'Limit', 3
EXEC sp_OAMethod @json, 'UpdateBool', @success OUT, 'ConsistentRead', 1
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'ProjectionExpression', 'Id, PostedBy, ReplyDateTime'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'KeyConditionExpression', 'Id = :v1 AND PostedBy BETWEEN :v2a AND :v2b'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'ExpressionAttributeValues.:v1.S', 'Amazon DynamoDB#DynamoDB Thread 1'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'ExpressionAttributeValues.:v2a.S', 'User A'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'ExpressionAttributeValues.:v2b.S', 'User C'
EXEC sp_OAMethod @json, 'UpdateString', @success OUT, 'ReturnConsumedCapacity', 'TOTAL'
EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Type', 'application/x-amz-json-1.0'
EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'X-Amz-Target', 'DynamoDB_20120810.Query'
EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Accept-Encoding', 'identity'
DECLARE @sbRequestBody int
EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbRequestBody OUT
EXEC sp_OAMethod @json, 'EmitSb', @success OUT, @sbRequestBody
DECLARE @sbResponseBody int
EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponseBody OUT
EXEC sp_OAMethod @rest, 'FullRequestSb', @success OUT, 'POST', '/', @sbRequestBody, @sbResponseBody
IF @success <> 1
BEGIN
EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @rest
EXEC @hr = sp_OADestroy @authAws
EXEC @hr = sp_OADestroy @json
EXEC @hr = sp_OADestroy @sbRequestBody
EXEC @hr = sp_OADestroy @sbResponseBody
RETURN
END
DECLARE @respStatusCode int
EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @respStatusCode OUT
PRINT 'response status code = ' + @respStatusCode
IF @respStatusCode >= 400
BEGIN
PRINT 'Response Status Code = ' + @respStatusCode
PRINT 'Response Header:'
EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
PRINT @sTmp0
PRINT 'Response Body:'
EXEC sp_OAMethod @sbResponseBody, 'GetAsString', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @rest
EXEC @hr = sp_OADestroy @authAws
EXEC @hr = sp_OADestroy @json
EXEC @hr = sp_OADestroy @sbRequestBody
EXEC @hr = sp_OADestroy @sbResponseBody
RETURN
END
DECLARE @jsonResponse int
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonResponse OUT
EXEC sp_OAMethod @jsonResponse, 'LoadSb', @success OUT, @sbResponseBody
EXEC sp_OASetProperty @jsonResponse, 'EmitCompact', 0
EXEC sp_OAMethod @jsonResponse, 'Emit', @sTmp0 OUT
PRINT @sTmp0
-- Sample JSON response:
-- (Sample code for parsing the JSON response is shown below)
-- {
-- "ConsumedCapacity": {
-- "CapacityUnits": 1,
-- "TableName": "Reply"
-- },
-- "Count": 2,
-- "Items": [
-- {
-- "ReplyDateTime": {
-- "S": "2015-02-18T20:27:36.165Z"
-- },
-- "PostedBy": {
-- "S": "User A"
-- },
-- "Id": {
-- "S": "Amazon DynamoDB#DynamoDB Thread 1"
-- }
-- },
-- {
-- "ReplyDateTime": {
-- "S": "2015-02-25T20:27:36.165Z"
-- },
-- "PostedBy": {
-- "S": "User B"
-- },
-- "Id": {
-- "S": "Amazon DynamoDB#DynamoDB Thread 1"
-- }
-- }
-- ],
-- "ScannedCount": 2
-- }
-- Sample code for parsing the JSON response...
-- Use the following online tool to generate parsing code from sample JSON:
-- Generate Parsing Code from JSON
DECLARE @ReplyDateTimeS nvarchar(4000)
DECLARE @PostedByS nvarchar(4000)
DECLARE @IdS nvarchar(4000)
DECLARE @ConsumedCapacityCapacityUnits int
EXEC sp_OAMethod @jsonResponse, 'IntOf', @ConsumedCapacityCapacityUnits OUT, 'ConsumedCapacity.CapacityUnits'
DECLARE @ConsumedCapacityTableName nvarchar(4000)
EXEC sp_OAMethod @jsonResponse, 'StringOf', @ConsumedCapacityTableName OUT, 'ConsumedCapacity.TableName'
DECLARE @Count int
EXEC sp_OAMethod @jsonResponse, 'IntOf', @Count OUT, 'Count'
DECLARE @ScannedCount int
EXEC sp_OAMethod @jsonResponse, 'IntOf', @ScannedCount OUT, 'ScannedCount'
DECLARE @i int
SELECT @i = 0
DECLARE @count_i int
EXEC sp_OAMethod @jsonResponse, 'SizeOfArray', @count_i OUT, 'Items'
WHILE @i < @count_i
BEGIN
EXEC sp_OASetProperty @jsonResponse, 'I', @i
EXEC sp_OAMethod @jsonResponse, 'StringOf', @ReplyDateTimeS OUT, 'Items[i].ReplyDateTime.S'
EXEC sp_OAMethod @jsonResponse, 'StringOf', @PostedByS OUT, 'Items[i].PostedBy.S'
EXEC sp_OAMethod @jsonResponse, 'StringOf', @IdS OUT, 'Items[i].Id.S'
SELECT @i = @i + 1
END
EXEC @hr = sp_OADestroy @rest
EXEC @hr = sp_OADestroy @authAws
EXEC @hr = sp_OADestroy @json
EXEC @hr = sp_OADestroy @sbRequestBody
EXEC @hr = sp_OADestroy @sbResponseBody
EXEC @hr = sp_OADestroy @jsonResponse
END
GO