{"id":3493,"date":"2022-04-25T07:19:32","date_gmt":"2022-04-25T15:19:32","guid":{"rendered":"https:\/\/www.gudusoft.com\/?p=3493"},"modified":"2022-05-19T01:40:00","modified_gmt":"2022-05-19T09:40:00","slug":"data-lineage-create-external-table","status":"publish","type":"post","link":"https:\/\/www.gudusoft.com\/jp\/%e3%83%87%e3%83%bc%e3%82%bf%e7%b3%bb%e5%88%97%e4%bd%9c%e6%88%90%e5%a4%96%e9%83%a8%e3%83%86%e3%83%bc%e3%83%96%e3%83%ab\/","title":{"rendered":"\u30c7\u30fc\u30bf \u30ea\u30cd\u30fc\u30b8 \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210 | Gudu SQLFlow"},"content":{"rendered":"

\u30c7\u30fc\u30bf \u30ea\u30cd\u30fc\u30b8 \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210 | Gudu SQLFlow<\/strong><\/h2>\n

\u30c7\u30fc\u30bf \u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3067\u306f\u3001\u5143\u306e\u30c7\u30fc\u30bf\u306f\u5e38\u306b Amazon S3\u3001Google Cloud Storage\u3001Microsoft Azure \u306a\u3069\u306e\u5927\u5bb9\u91cf\u30b9\u30c8\u30ec\u30fc\u30b8\u304b\u3089\u53d6\u5f97\u3055\u308c\u3001\u305d\u308c\u3089\u306e\u30c7\u30fc\u30bf\u306f BigQuery\u3001Snowflake\u3001Redshift\u3001Microsoft Azure \u306a\u3069\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u8aad\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30c9\u307e\u305f\u306f\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u65b9\u6cd5\u306e 1 \u3064\u306f\u3001create external table SQL \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u5916\u90e8\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u30c7\u30fc\u30bf\u7cfb\u7d71\u306f\u3001 Gudu SQLFlow<\/strong> create external table SQL \u30af\u30a8\u30ea\u3092\u89e3\u6790\u3057\u307e\u3059\u3002\u3053\u306e\u30c7\u30fc\u30bf\u3092\u624b\u5143\u306b\u7f6e\u3044\u3066\u3001 Gudu SQLFlow<\/strong> \u30c7\u30fc\u30bf\u5206\u6790\u30d7\u30ed\u30bb\u30b9\u3067\u30a8\u30e9\u30fc\u3092\u6839\u672c\u539f\u56e0\u307e\u3067\u8ffd\u8de1\u3059\u308b\u6a5f\u80fd\u304c\u5927\u5e45\u306b\u7c21\u7d20\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n

\"\u30c7\u30fc\u30bf

\u30c7\u30fc\u30bf \u30ea\u30cd\u30fc\u30b8\u30e5 \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/p><\/div>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001BigQuery\u3001Snowflake\u3001Redshift\u3001Microsoft Azure \u3067\u4f7f\u7528\u3055\u308c\u308b create external table SQL \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u7d39\u4ecb\u3057\u3001 Gudu SQLFlow<\/strong> SQL\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5206\u6790\u3057\u305f\u5f8c\u3002<\/p>\n

BigQuery \u304c\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210<\/h3>\n

\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001BigQuery \u306f BigQuery \u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5916\u90e8\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3092\u30af\u30a8\u30ea\u3067\u304d\u307e\u3059\u3002\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u5916\u90e8\u30c7\u30fc\u30bf \u30bd\u30fc\u30b9\u306e\u7d39\u4ecb<\/a><\/strong>.<\/p>\n

Gudu SQLFlow<\/strong> BigQuery create external table \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5206\u6790\u3057\u3001 \u30c7\u30fc\u30bf\u7cfb\u7d71<\/a><\/strong> \u3053\u306eSQL\u6587\u3092\u5206\u6790\u3057\u305f\u5f8c\u3002<\/p>\n

BigQuery create external table SQL \u30af\u30a8\u30ea\u3092\u6b21\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n

CREATE OR REPLACE EXTERNAL TABLE dataset.CsvTable ( x INT64, y STRING ) OPTIONS ( format = 'CSV', uris = ['gs:\/\/bucket\/path1.csv'], field_delimiter = '|', max_bad_records = 5 );<\/code><\/pre>\n
\u3053\u3053\u3067\u4e0a\u8a18\u306e SQL \u306b\u5bfe\u3057\u3066\u751f\u6210\u3055\u308c\u305f\u30c7\u30fc\u30bf\u7cfb\u7d71\u306f\u3001Google \u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b gs:\/\/bucket\/path1.csv \u30d5\u30a1\u30a4\u30eb\u304c dataset.CsvTable \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u30bd\u30fc\u30b9\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
<\/figure>\n
\n
\"\u30c7\u30fc\u30bf<\/a>
\u30c7\u30fc\u30bf \u30ea\u30cd\u30fc\u30b8\u30e5 \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/figcaption><\/figure>\n<\/div>\n
Snowflake\u306f\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059<\/h3>\n
Snowflake \u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u5916\u90e8\u30b9\u30c6\u30fc\u30b8\u306e 1 \u3064\u4ee5\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u30bb\u30c3\u30c8\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u3001\u5358\u4e00\u306e VARIANT \u5217\u306b\u30c7\u30fc\u30bf\u3092\u51fa\u529b\u3059\u308b\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 \u5916\u90e8\u8868\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306e\u4f5c\u6210<\/strong><\/a> \u73fe\u5728\u306e\/\u6307\u5b9a\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u306b\u65b0\u3057\u3044\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u304b\u3001\u65e2\u5b58\u306e\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n
\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u524d\u306b\u3001\u6b21\u306e\u3053\u3068\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059 \u5916\u90e8\u30b9\u30c6\u30fc\u30b8\u3092\u4f5c\u6210\u3059\u308b<\/strong><\/a> \u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5834\u6240\u3002<\/p>\n
\u30b9\u30c6\u30fc\u30b8 s1 \u306e\u4f5c\u6210 url='s3:\/\/mybucket\/files\/logs\/' ... ;<\/code><\/pre>\n
\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5316\u3055\u308c\u305f\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
create external table et1( date_part date as to_date(split_part(metadata$filename, '\/', 3) || '\/' || split_part(metadata$filename, '\/', 4) || '\/' || split_part(metadata$filename, '\/) ', 5), 'YYYY\/MM\/DD'), \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7 bigint as (value:timestamp::bigint), col2 varchar as (value:col2::varchar)) partition by (date_part) location=@s1\/logs\/ auto_refresh = true file_format = (type = parquet) aws_sns_topic = 'arn:aws:sns:us-west-2:001234567890:s3_mybucket';<\/code><\/pre>\n
Gudu SQLFlow \u306f Snowflake \u306e create external table \u30af\u30a8\u30ea \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u51e6\u7406\u3057\u3001\u6b21\u306e\u3088\u3046\u306b\u5916\u90e8\u30b9\u30c6\u30fc\u30b8\u306e\u30d5\u30a1\u30a4\u30eb\u3068\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u9593\u306b\u30c7\u30fc\u30bf\u7cfb\u7d71\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n
<\/figure>\n
\n
\"\u30c7\u30fc\u30bf<\/a>
\u30c7\u30fc\u30bf \u30ea\u30cd\u30fc\u30b8\u30e5 \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/figcaption><\/figure>\n<\/div>\n
Snowflake\u3067\u306f\u3001\u5916\u90e8\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3082\u3001\u6b21\u3092\u4f7f\u7528\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u306b\u79fb\u52d5\u3067\u304d\u307e\u3059\u3002 \u306b\u30b3\u30d4\u30fc<\/a><\/strong> SQL \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3068 Gudu SQLFlow \u306f\u3001SQL \u30af\u30a8\u30ea \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3078\u306e\u30b3\u30d4\u30fc\u3067\u30c7\u30fc\u30bf\u7cfb\u7d71\u3092\u691c\u51fa\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
SQL Server \u3068 Azure Synapse Analytics<\/h2>\n
Create external table \u30b3\u30de\u30f3\u30c9\u306f\u3001PolyBase \u304c Hadoop \u30af\u30e9\u30b9\u30bf\u30fc\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306e\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3001\u307e\u305f\u306f Hadoop \u30af\u30e9\u30b9\u30bf\u30fc\u307e\u305f\u306f Azure Blob Storage \u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3092\u53c2\u7167\u3059\u308b Azure Blob Storage PolyBase \u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
Azure Synapse Analytics \u3067\u306f\u3001\u4f5c\u6210\u3055\u308c\u305f\u5916\u90e8\u30c6\u30fc\u30d6\u30eb:<\/p>\n