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擷取 SQL 陳述式的結果
若要從執行的 SQL 陳述式擷取結果，請使用 redshift-data get-statement-result或 redshift-data get-statement-result-v2 AWS CLI 命令。的結果get-statement-result採用 JSON 格式。的結果get-statement-result-v2為 CSV 格式。您可以提供所收到的 Id 以回應 execute-statement 或 batch-execute-statement。由 batch-execute-statement 執行的 SQL 陳述式的 Id 值可以在 describe-statement 的結果中擷取，並且會加上由冒號和序號組成的字尾 (例如 b2906c76-fa6e-4cdf-8c5f-4de1ff9b7652:2)。如果您使用 batch-execute-statement 執行多個 SQL 陳述式，則每個 SQL 陳述式都會有一個 Id 值，如 describe-statement 中所示。執行此命令的授權取決於呼叫者的 IAM 許可。
下列陳述式會傳回 執行的 SQL 陳述式結果execute-statement，讓ResultFormat預設值為 JSON。若要擷取結果，請呼叫 get-statement-result操作。
aws redshift-data get-statement-result --id d9b6c0c9-0747-4bf4-b142-e8883122f766
下列陳述式會傳回由 batch-execute-statement 執行的第二個 SQL 陳述式的結果。
aws redshift-data get-statement-result --id b2906c76-fa6e-4cdf-8c5f-4de1ff9b7652:2
以下是對 呼叫的回應範例，get-statement-result其中 SQL 結果會以回應的Records金鑰的 JSON 格式傳回。
{
"ColumnMetadata": [
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "userid",
"length": 0,
"name": "userid",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "query",
"length": 0,
"name": "query",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
},
{
"isCaseSensitive": true,
"isCurrency": false,
"isSigned": false,
"label": "label",
"length": 0,
"name": "label",
"nullable": 0,
"precision": 320,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "bpchar"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "xid",
"length": 0,
"name": "xid",
"nullable": 0,
"precision": 19,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int8"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "pid",
"length": 0,
"name": "pid",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
},
{
"isCaseSensitive": true,
"isCurrency": false,
"isSigned": false,
"label": "database",
"length": 0,
"name": "database",
"nullable": 0,
"precision": 32,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "bpchar"
},
{
"isCaseSensitive": true,
"isCurrency": false,
"isSigned": false,
"label": "querytxt",
"length": 0,
"name": "querytxt",
"nullable": 0,
"precision": 4000,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "bpchar"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"label": "starttime",
"length": 0,
"name": "starttime",
"nullable": 0,
"precision": 29,
"scale": 6,
"schemaName": "",
"tableName": "stll_query",
"typeName": "timestamp"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"label": "endtime",
"length": 0,
"name": "endtime",
"nullable": 0,
"precision": 29,
"scale": 6,
"schemaName": "",
"tableName": "stll_query",
"type": 93,
"typeName": "timestamp"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "aborted",
"length": 0,
"name": "aborted",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "insert_pristine",
"length": 0,
"name": "insert_pristine",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "concurrency_scaling_status",
"length": 0,
"name": "concurrency_scaling_status",
"nullable": 0,
"precision": 10,
"scale": 0,
"schemaName": "",
"tableName": "stll_query",
"typeName": "int4"
}
],
"Records": [
[
{
"longValue": 1
},
{
"longValue": 3
},
{
"stringValue": "health"
},
{
"longValue": 1023
},
{
"longValue": 15279
},
{
"stringValue": "dev"
},
{
"stringValue": "select system_status from stv_gui_status;"
},
{
"stringValue": "2020-08-21 17:33:51.88712"
},
{
"stringValue": "2020-08-21 17:33:52.974306"
},
{
"longValue": 0
},
{
"longValue": 0
},
{
"longValue": 6
}
]
],
"TotalNumRows": 1
}下列範例顯示由 執行的 SQL 陳述式execute-statement，以 JSON 傳回結果。資料表testingtable有三個整數資料欄 (col1、col2、col3)，並有三個資料列具有值 (1、2、3)、(4、5、6) 和 (7、8、9)。
aws redshift-data execute-statement --database dev --sql "SELECT col1, col2, col3 FROM testingtable" --cluster-id mycluster-test --result-format JSON
{ "ClusterIdentifier": "mycluster-test", "CreatedAt": "2024-04-02T16:45:25.144000+00:00", "Database": "dev", "DbUser": "IAMR:Administrator", "Id": "d468d942-6df9-4f85-8ae3-bac01a61aec3" }
以下是對 呼叫的回應範例，get-statement-result其中 SQL 結果會以回應的Records金鑰的 JSON 格式傳回。
aws redshift-data get-statement-result --id d468d942-6df9-4f85-8ae3-bac01a61aec3
{
"Records": [
[
{
"longValue": 1
},
{
"longValue": 2
},
{
"longValue": 3
}
],
[
{
"longValue": 4
},
{
"longValue": 5
},
{
"longValue": 6
}
],
[
{
"longValue": 7
},
{
"longValue": 8
},
{
"longValue": 9
}
]
],
"ColumnMetadata": [
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col1",
"name": "col1",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col2",
"name": "col2",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col3",
"name": "col3",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
}
],
"TotalNumRows": 3
}下列範例顯示由 執行的 SQL 陳述式execute-statement，以 CSV 格式傳回結果。資料表testingtable有三個整數資料欄 (col1、col2、col3)，並有三個資料列具有值 (1、2、3)、(4、5、6) 和 (7、8、9)。
aws redshift-data execute-statement --database dev --sql "SELECT col1, col2, col3 FROM testingtable" --cluster-id mycluster-test --result-format CSV
{ "ClusterIdentifier": "mycluster-test", "CreatedAt": "2024-04-02T16:45:25.144000+00:00", "Database": "dev", "DbUser": "IAMR:Administrator", "Id": "d468d942-6df9-4f85-8ae3-bac01a61aec3" }
以下是對 呼叫的回應範例，get-statement-result-v2其中 SQL 結果會以 CSV 格式傳回回應的Records金鑰。資料列會以換行字元和換行符號 (\r\n) 分隔。在 中傳回的第一列Records是資料欄標頭。以 CSV 格式傳回的結果會以 1 MB 傳回，其中每個區塊可以儲存任意數量的資料列，最多 1MB。
aws redshift-data get-statement-result-v2 --id d468d942-6df9-4f85-8ae3-bac01a61aec3
{
"Records": [
{
"CSVRecords": "col1,col2,col3\r\n1,2,3\r\n4,5,6\r\n7,8,9\r\n"
}
],
"ColumnMetadata": [
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col1",
"name": "col1",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col2",
"name": "col2",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": true,
"label": "col3",
"name": "col3",
"nullable": 1,
"precision": 10,
"scale": 0,
"schemaName": "public",
"tableName": "testingtable",
"typeName": "int4",
"length": 0
}
],
"TotalNumRows": 3,
"ResultFormat": "csv"
}