{"id":520,"date":"2017-01-23T16:57:34","date_gmt":"2017-01-23T08:57:34","guid":{"rendered":"http:\/\/www.rao-bing.cn\/?p=520"},"modified":"2020-01-06T16:13:32","modified_gmt":"2020-01-06T08:13:32","slug":"oracle-12-2-hybrid-columnar-compression-new-feature","status":"publish","type":"post","link":"http:\/\/www.rao-bing.cn\/index.php\/2017\/01\/23\/520\/","title":{"rendered":"Oracle 12.2 Hybrid Columnar Compression New Feature"},"content":{"rendered":"<p>\n\u00a0<\/p>\n<p>Oracle 12.2 \u5728\u6df7\u5408\u5217\u538b\u7f29\u4e0a\u7684\u65b0\u529f\u80fd\u4e0d\u591a\uff0c\u53ef\u4ee5\u8bf4\u53ea\u662f\u4e00\u4e2a\u5c0f\u7684\u529f\u80fd\u589e\u5f3a\u3002\n<\/p>\n<p>\u6211\u4eec\u77e5\u9053\uff0c\u8981\u60f3\u8ba9\u6df7\u5408\u5217\u538b\u7f29\u751f\u6548\uff0c\u5bf9\u4e8e\u8868\u7684\u66f4\u65b0\u64cd\u4f5c\u5fc5\u987b\u662fdirect path\u65b9\u5f0f\u7684\uff0c\u6bd4\u5982\uff1a\n<\/p>\n<ul>\n<li>CREATE TABLE AS SELECT\n<\/li>\n<li>INSERT \/*+APPEND*\/ \u2026 SELECT \u2026\n<\/li>\n<li>ALTER TABLE MOVE\n<\/li>\n<li>SQL*Loader direct path\n<\/li>\n<\/ul>\n<p>\u7b49\u7b49\n<\/p>\n<p>\u4ee5\u5f80\uff0cinsert\u8bed\u53e5\u662f\u4e00\u5b9a\u8981\u4f7f\u7528APPEND\u8fd9\u4e2ahint\u7684\uff0c\u5426\u5219\u8fd9\u4e2ainsert\u8bed\u53e5\u4f1a\u5bfc\u81f4\u51fa\u5165\u7684\u8bb0\u5f55\u6ca1\u6709\u6309\u7167\u8868\u7684\u5b9a\u4e49\u538b\u7f29\u3002\n<\/p>\n<p>\u572812.2\uff0c\u5bf9\u4e8earray insert\uff0c\u8fd9\u4e2aAPPEND\u53ef\u4ee5\u4e0d\u7528\u5199\u4e86\uff0c\u76f4\u63a5\u5c31\u53ef\u4ee5\u8ba9HCC\u751f\u6548\u3002\u6240\u8c13\u7684array insert\u5c31\u662f\u50cf\n<\/p>\n<p>insert into table_name1 select * from table_name2 \u8fd9\u6837\u7684\u8bed\u53e5\u3002\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u5c0f\u5b9e\u9a8c\u9a8c\u8bc1\u4e00\u4e0b\uff1a\n<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u8981\u4e86\u89e3\u4e00\u4e0b\u5982\u4f55\u5f97\u5230\u8bb0\u5f55\u7684\u538b\u7f29\u65b9\u5f0f\uff0cOracle\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7cfb\u7edf\u5305\uff0cDBMS_COMPRESSION\uff0c\u5176\u4e2d\u7684\u51fd\u6570GET_COMPRESSION_TYPE\u53ef\u4ee5\u5f97\u5230\u8bb0\u5f55\u7684\u538b\u7f29\u65b9\u5f0f\u3002\n<\/p>\n<p>\u8fd9\u4e2a\u51fd\u6570\u7684\u8c03\u7528\u65b9\u5f0f\uff1a\n<\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">DBMS_COMPRESSION.GET_COMPRESSION_TYPE (<br \/>\n<\/span><\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">   ownname      IN    VARCHAR2,<br \/>\n<\/span><\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">   tabname      IN    VARCHAR2,<br \/>\n<\/span><\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">   row_id       IN    ROWID,<br \/>\n<\/span><\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">   subobjname   IN    VARCHAR2 DEFAULT NULL))<br \/>\n<\/span><\/p>\n<p style=\"background: #f9f9fb\"><span style=\"color:black; font-family:Courier New; font-size:10pt\">  RETURN NUMBER;<br \/>\n<\/span><\/p>\n<p>\u8fd4\u56de\u7684\u6570\u5b57\u548c\u538b\u7f29\u65b9\u5f0f\u7684\u5bf9\u5e94\u5173\u7cfb\uff1a\n<\/p>\n<div>\n<table style=\"border-collapse:collapse\" border=\"0\">\n<colgroup>\n<col style=\"width:72px\"\/>\n<col style=\"width:352px\"\/><\/colgroup>\n<tbody valign=\"top\">\n<tr style=\"height: 20px; background: #3f3f3f\">\n<td style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  none; border-right:  none\">\n<p><span style=\"color:white; font-family:Arial; font-size:12pt\"><strong>Value<\/strong><\/span><\/p>\n<\/td>\n<td style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  none; border-right:  none\">\n<p><span style=\"color:white; font-family:Arial; font-size:12pt\"><strong>Description<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: white\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">1<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">No compression<\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: #f9f9f9\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">2<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">Advanced compression level<\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: white\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">4<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">High compression level for query operations<\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: #f9f9f9\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">8<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">Low compression level for query operations<\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: white\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">16<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">High compression level for archive operations<\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 20px; background: #f9f9f9\">\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:black; font-family:Courier New; font-size:12pt\">32<\/span><\/p>\n<\/td>\n<td vAlign=\"middle\" style=\"padding-left: 7px; padding-right: 7px; border-top:  none; border-left:  none; border-bottom:  solid #3f3f3f 1.0pt; border-right:  none\">\n<p><span style=\"color:#222222; font-family:Arial; font-size:12pt\">Low compression level for archive operations<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\n\u00a0<\/p>\n<p>C:\\Users\\raobing&gt;sqlplus raobing@dbaccess\n<\/p>\n<p>\n\u00a0<\/p>\n<p>SQL*Plus: Release 12.1.0.2.0 Production on \u661f\u671f\u4e00 1\u6708 23 16:52:42 2017\n<\/p>\n<p>\n\u00a0<\/p>\n<p>Copyright (c) 1982, 2014, Oracle.  All rights reserved.\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u8f93\u5165\u53e3\u4ee4:\n<\/p>\n<p>\u4e0a\u6b21\u6210\u529f\u767b\u5f55\u65f6\u95f4: \u661f\u671f\u4e00 1\u6708  23 2017 16:51:05 +08:00\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u8fde\u63a5\u5230:\n<\/p>\n<p>Oracle Database 12c Enterprise Edition Release 12.2.0.0.3 &#8211; 64bit Production\n<\/p>\n<p>\n\u00a0<\/p>\n<p>SQL&gt; create table test1 compress for query high as select * from system.help where 1=2;\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u8868\u5df2\u521b\u5efa\u3002\n<\/p>\n<p>\n\u00a0<\/p>\n<p>SQL&gt; insert into test1 select * from system.help;\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u5df2\u521b\u5efa 977 \u884c\u3002\n<\/p>\n<p>\n\u00a0<\/p>\n<p>SQL&gt; commit;\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u63d0\u4ea4\u5b8c\u6210\u3002\n<\/p>\n<p>\n\u00a0<\/p>\n<p>SQL&gt; select DBMS_COMPRESSION.GET_COMPRESSION_TYPE (&#8216;RAOBING&#8217;,&#8217;TEST1&#8242;,rowid) CT,t.* from test1 t;\n<\/p>\n<p>\u3002\u3002\u3002\u3002\u3002\u3002\n<\/p>\n<p>        CT TOPIC                                 SEQ INFO\n<\/p>\n<p>&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;\n<\/p>\n<p>         4 TOPICS                                 47 REMARK\n<\/p>\n<p>         4 TOPICS                                 48 REPFOOTER\n<\/p>\n<p>         4 TOPICS                                 49 REPHEADER\n<\/p>\n<p>         4 TOPICS                                 50 RESERVED WORDS (PL\/SQL)\n<\/p>\n<p>         4 TOPICS                                 51 RESERVED WORDS (SQL)\n<\/p>\n<p>         4 TOPICS                                 52 RUN\n<\/p>\n<p>         4 TOPICS                                 53 SAVE\n<\/p>\n<p>         4 TOPICS                                 54 SET\n<\/p>\n<p>         4 TOPICS                                 55 SHOW\n<\/p>\n<p>         4 TOPICS                                 56 SHUTDOWN\n<\/p>\n<p>         4 TOPICS                                 57 SPOOL\n<\/p>\n<p>\n\u00a0<\/p>\n<p>        CT TOPIC                                 SEQ INFO\n<\/p>\n<p>&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;\n<\/p>\n<p>         4 TOPICS                                 58 SQLPLUS\n<\/p>\n<p>         4 TOPICS                                 59 START\n<\/p>\n<p>         4 TOPICS                                 60 STARTUP\n<\/p>\n<p>         4 TOPICS                                 61 STORE\n<\/p>\n<p>         4 TOPICS                                 62 TIMING\n<\/p>\n<p>         4 TOPICS                                 63 TOPICS\n<\/p>\n<p>         4 TOPICS                                 64 TTITLE\n<\/p>\n<p>         4 TOPICS                                 65 UNDEFINE\n<\/p>\n<p>         4 TOPICS                                 66 VARIABLE\n<\/p>\n<p>         4 TOPICS                                 67 WHENEVER OSERROR\n<\/p>\n<p>         4 TOPICS                                 68 WHENEVER SQLERROR\n<\/p>\n<p>\n\u00a0<\/p>\n<p>        CT TOPIC                                 SEQ INFO\n<\/p>\n<p>&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;\n<\/p>\n<p>         4 TOPICS                                 69 XQUERY\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u5df2\u9009\u62e9 977 \u884c\u3002\n<\/p>\n<p>\n\u00a0<\/p>\n<p>\u6bcf\u4e00\u884c\u7684\u538b\u7f29\u7c7b\u578b\u90fd\u662f4\uff0c\u4ee3\u8868\u662fquery high\u3002\n<\/p>\n<p>\u8fd9\u4e2a\u7279\u6027\u53ea\u662f\u5728insert \u2026 select \u8fd9\u79cd\u60c5\u51b5\u4e0b\u4e0d\u7528\u52a0 APPEND hint\u4e86\uff0c\u6b63\u5e38\u7684insert\u8fd8\u662f\u4e0d\u4f1a\u538b\u7f29\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Oracle 12.2 \u5728\u6df7\u5408\u5217\u538b\u7f29\u4e0a\u7684\u65b0\u529f\u80fd\u4e0d\u591a\uff0c\u53ef\u4ee5\u8bf4\u53ea\u662f\u4e00\u4e2a\u5c0f\u7684\u529f\u80fd\u589e\u5f3a\u3002 \u6211\u4eec\u77e5\u9053\uff0c\u8981\u60f3\u8ba9\u6df7\u5408\u5217\u538b\u7f29\u751f\u6548\uff0c\u5bf9\u4e8e\u8868\u7684\u66f4\u65b0\u64cd\u4f5c\u5fc5\u987b\u662fdirect pat&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"http:\/\/www.rao-bing.cn\/index.php\/2017\/01\/23\/520\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":523,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[6],"tags":[25],"class_list":["post-520","post","type-post","status-publish","format-aside","has-post-thumbnail","hentry","category-oracle","tag-hcc","post_format-post-format-aside"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"http:\/\/www.rao-bing.cn\/wp-content\/uploads\/2017\/01\/hcc.jpg","jetpack_shortlink":"https:\/\/wp.me\/p8gSFq-8o","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":599,"url":"http:\/\/www.rao-bing.cn\/index.php\/2017\/01\/25\/599\/","url_meta":{"origin":520,"position":0},"title":"12c 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2x"},"classes":[]},{"id":470,"url":"http:\/\/www.rao-bing.cn\/index.php\/2017\/01\/22\/470\/","url_meta":{"origin":520,"position":1},"title":"\u6df7\u5408\u5217\u538b\u7f29\u548cOracle ZFS\u5b58\u50a8\u4e00\u4f53\u673a","author":"raobing","date":"2017-01-22","format":"aside","excerpt":"\u00a0 \u6df7\u5408\u5217\u538b\u7f29\uff08HCC\uff09\u7b80\u4ecb \u6df7\u5408\u5217\u538b\u7f29\uff08HCC\uff09\u6700\u65e9\u662fOracle Exadata\u7684\u72ec\u7279\u2026","rel":"","context":"\u5728\u201cOracle\u201d\u4e2d","block_context":{"text":"Oracle","link":"http:\/\/www.rao-bing.cn\/index.php\/category\/oracle\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rao-bing.cn\/wp-content\/uploads\/2017\/01\/clip_image012_thumb-2.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rao-bing.cn\/wp-content\/uploads\/2017\/01\/clip_image012_thumb-2.jpg?resize=350%2C200 1x, 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