{"id":60803,"date":"2024-10-13T05:56:13","date_gmt":"2024-10-12T21:56:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60803\/"},"modified":"2024-10-13T05:56:13","modified_gmt":"2024-10-12T21:56:13","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%89%80%e6%94%af%e6%8c%81%e7%9a%84%e5%a4%96%e9%83%a8%e6%96%87%e4%bb%b6%e6%a0%bc%e5%bc%8f%e5%88%97%e8%88%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60803\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u6240\u652f\u6301\u7684\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\u5217\u8209"},"content":{"rendered":"

DB2\u6578\u64da\u5eab\u6240\u652f\u6301\u7684\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\u5217\u8209<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u9078\u64c7\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002IBM\u7684DB2\u6578\u64da\u5eab\u4ee5\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u800c\u805e\u540d\u3002DB2\u4e0d\u50c5\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u9084\u80fd\u5920\u8655\u7406\u591a\u7a2e\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u6578\u64da\u96c6\u6210\u548c\u6578\u64da\u9077\u79fb\u65b9\u9762\u5177\u6709\u5f88\u5927\u7684\u512a\u52e2\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u6240\u652f\u6301\u7684\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u3002<\/p>\n

1. CSV\uff08\u9017\u865f\u5206\u9694\u503c\uff09<\/h2>\n

CSV\u683c\u5f0f\u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u6578\u64da\u4ea4\u63db\u683c\u5f0f\uff0c\u56e0\u5176\u7c21\u55ae\u6613\u7528\u800c\u53d7\u5230\u9752\u775e\u3002DB2\u652f\u6301\u5f9eCSV\u6587\u4ef6\u4e2d\u5c0e\u5165\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u8f15\u9b06\u5730\u5c07\u6578\u64da\u5f9e\u5176\u4ed6\u7cfb\u7d71\u8f49\u79fb\u5230DB2\u4e2d\u3002<\/p>\n

IMPORT FROM 'data.csv' OF DEL MODIFIED BY COLDEL, INSERT INTO my_table;<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6578\u64da\u5c07\u5f9e\u540d\u70ba\u201cdata.csv\u201d\u7684\u6587\u4ef6\u4e2d\u5c0e\u5165\u5230\u201cmy_table\u201d\u8868\u4e2d\u3002<\/p>\n
2. XML\uff08\u53ef\u64f4\u5c55\u6a19\u8a18\u8a9e\u8a00\uff09<\/h2>\n
XML\u662f\u4e00\u7a2e\u6a19\u8a18\u8a9e\u8a00\uff0c\u5e38\u7528\u65bc\u6578\u64da\u5b58\u5132\u548c\u50b3\u8f38\u3002DB2\u63d0\u4f9b\u4e86\u5c0dXML\u6578\u64da\u7684\u539f\u751f\u652f\u6301\uff0c\u5141\u8a31\u7528\u6236\u76f4\u63a5\u5f9eXML\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\u3002<\/p>\n
SELECT * FROM XMLTABLE('$doc\/root\/item' PASSING XMLPARSE(DOCUMENT xml_data) COLUMNS id INT PATH 'id', name VARCHAR(100) PATH 'name') AS x;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5f9eXML\u6578\u64da\u4e2d\u63d0\u53d6\u7279\u5b9a\u7684\u5b57\u6bb5\u3002<\/p>\n
3. JSON\uff08JavaScript\u5c0d\u8c61\u8868\u793a\u6cd5\uff09<\/h2>\n
\u96a8\u8457Web\u6280\u8853\u7684\u767c\u5c55\uff0cJSON\u683c\u5f0f\u9010\u6f38\u6210\u70ba\u6578\u64da\u4ea4\u63db\u7684\u6a19\u6e96\u683c\u5f0f\u4e4b\u4e00\u3002DB2\u652f\u6301JSON\u6578\u64da\u7684\u5b58\u5132\u548c\u67e5\u8a62\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u9748\u6d3b\u5730\u8655\u7406\u6578\u64da\u3002<\/p>\n
SELECT JSON_VALUE(json_column, '$.name') AS name FROM my_table;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5f9e\u201cmy_table\u201d\u8868\u4e2d\u7684JSON\u5217\u4e2d\u63d0\u53d6\u201cname\u201d\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n
4. Parquet<\/h2>\n
Parquet\u662f\u4e00\u7a2e\u5217\u5f0f\u5b58\u5132\u683c\u5f0f\uff0c\u7279\u5225\u9069\u5408\u65bc\u5927\u6578\u64da\u8655\u7406\u3002DB2\u652f\u6301\u5f9eParquet\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u67e5\u8a62\u7684\u61c9\u7528\u5834\u666f\u975e\u5e38\u6709\u7528\u3002<\/p>\n
SELECT * FROM EXTERNAL TABLE my_parquet_table USING (DATAFORMAT PARQUET) AS t;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5f9eParquet\u683c\u5f0f\u7684\u5916\u90e8\u8868\u4e2d\u67e5\u8a62\u6578\u64da\u3002<\/p>\n
5. Avro<\/h2>\n
Avro\u662f\u4e00\u7a2e\u6578\u64da\u5e8f\u5217\u5316\u683c\u5f0f\uff0c\u901a\u5e38\u7528\u65bc\u5927\u6578\u64da\u74b0\u5883\u4e2d\u3002DB2\u4e5f\u652f\u6301Avro\u683c\u5f0f\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5728\u4e0d\u540c\u7684\u6578\u64da\u8655\u7406\u7cfb\u7d71\u4e4b\u9593\u9032\u884c\u6578\u64da\u4ea4\u63db\u3002<\/p>\n
SELECT * FROM EXTERNAL TABLE my_avro_table USING (DATAFORMAT AVRO) AS t;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5f9eAvro\u683c\u5f0f\u7684\u5916\u90e8\u8868\u4e2d\u67e5\u8a62\u6578\u64da\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
DB2\u6578\u64da\u5eab\u652f\u6301\u591a\u7a2e\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\uff0c\u5305\u62ecCSV\u3001XML\u3001JSON\u3001Parquet\u548cAvro\u7b49\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u7684\u5c0e\u5165\u3001\u5c0e\u51fa\u548c\u8655\u7406\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u548c\u9ad8\u6548\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u96c6\u6210\u9084\u662f\u6578\u64da\u9077\u79fb\uff0cDB2\u90fd\u80fd\u5920\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 \u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u904b\u884c\u60a8\u7684DB2\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
DB2\u6578\u64da\u5eab\u652f\u6301\u591a\u7a2e\u5916\u90e8\u6587\u4ef6\u683c\u5f0f\uff0c\u5305\u62ecCSV\u3001XML\u3001JSON\u7b49\uff0c\u65b9\u4fbf\u6578\u64da\u5c0e\u5165\u548c\u5c0e\u51fa\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60803","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60803"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60803\/revisions"}],"predecessor-version":[{"id":60804,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60803\/revisions\/60804"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}