{"id":2013,"date":"2022-12-03T00:00:00","date_gmt":"2022-12-02T15:00:00","guid":{"rendered":"https:\/\/www.ishikawasekkei.com\/?p=2013"},"modified":"2022-12-05T12:07:37","modified_gmt":"2022-12-05T03:07:37","slug":"oracle-plsql-performance-difference-variable-usage","status":"publish","type":"post","link":"https:\/\/www.ishikawasekkei.com\/index.php\/2022\/12\/03\/oracle-plsql-performance-difference-variable-usage\/","title":{"rendered":"ORACLE PL\/SQL \u5909\u6570\u306e\u4f7f\u3044\u65b9\u306e\u9055\u3044\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u78ba\u8a8d"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u3053\u3093\u306b\u3061\u306f\u3001\u77f3\u5ddd\u3055\u3093\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u8fd1ORACLE\u306ePL\/SQL\u3067\u30b9\u30c8\u30a2\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002\u3069\u3063\u3061\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u826f\u3044\u306e\u304b\u3001\u3061\u3087\u3063\u3068\u6c17\u306b\u306a\u3063\u305f\u306e\u3067\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f5c\u3063\u3066\u3044\u305f\u306e\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\uff11\u884c\u305a\u3064\u8aad\u307f\u8fbc\u3093\u3067\u3001\u8af8\u3005\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u554f\u984c\u306a\u3051\u308c\u3070\u30c6\u30fc\u30d6\u30eb\u306bINSERT\u3059\u308b\u3001\u3068\u3044\u3046\u3088\u304f\u3042\u308b\u5358\u7d14\u306a\u51e6\u7406\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u547c\u3073\u51fa\u3057\u5074\u304b\u3089OUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u3066\u3001\u767b\u9332\u4ef6\u6570\u3068\u30c1\u30a7\u30c3\u30af\u3057\u305f\u30a8\u30e9\u30fc\u4ef6\u6570\u3092\u3082\u3069\u3059\u3001\u3068\u3044\u3046\u8981\u4ef6\u304c\u3042\u308b\u3068\u304d\u306e\u5909\u6570\u306e\u4f7f\u3044\u65b9\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u4e8c\u901a\u308a\u3092\u8003\u3048\u307e\u3057\u305f\u3002\u3069\u3063\u3061\u304c\u65e9\u3044\u306e\u3067\u3057\u3087\u3046\u306d\uff1f<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>OUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u76f4\u63a5\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3059\u308b<\/li>\n\n\n\n<li>\u5225\u9014\u5b9a\u7fa9\u3057\u305f\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3057\u3066\u3001\u6700\u5f8c\u306bOUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3078\u7d50\u679c\u3092\u30bb\u30c3\u30c8\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u9a13<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u308f\u304b\u3089\u306a\u3044\u3053\u3068\u306f\u3001\u3059\u3050\u306b\u5b9f\u9a13\u3057\u307e\u3057\u3087\u3046\u3002\u3068\u3001\u3044\u3046\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"oracledb\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">set serveroutput on\n\nDECLARE\n  counter NUMBER := 0;\n  s1 TIMESTAMP;\n  s2 TIMESTAMP;\n  e1 TIMESTAMP;\n  e2 TIMESTAMP;\n  PROCEDURE inner_procedure1(an_counter OUT NUMBER) IS\n  BEGIN\n    an_counter := 0;\n    LOOP\n      an_counter := an_counter + 1;\n      EXIT WHEN an_counter > 10000000;\n    END LOOP;\n  END;\n  PROCEDURE inner_procedure2(an_counter OUT NUMBER) IS\n    counter NUMBER := 0;\n  BEGIN\n    an_counter := 0;\n    LOOP\n      counter := counter + 1;\n      EXIT WHEN counter > 10000000;\n    END LOOP;\n    an_counter := counter;\n  END;\nBEGIN\n  s1 := SYSTIMESTAMP;\n  inner_procedure1(counter);\n  e1 := SYSTIMESTAMP;\n  s2 := SYSTIMESTAMP;\n  inner_procedure2(counter);\n  e2 := SYSTIMESTAMP;\n  DBMS_OUTPUT.PUT_LINE('START:'||TO_CHAR(s1,'YYYY-MM-DD HH24:MI:SS.FF'));\n  DBMS_OUTPUT.PUT_LINE('END  :'||TO_CHAR(e1,'YYYY-MM-DD HH24:MI:SS.FF'));\n  DBMS_OUTPUT.PUT_LINE(e1 - s1);\n  DBMS_OUTPUT.PUT_LINE('START:'||TO_CHAR(s2,'YYYY-MM-DD HH24:MI:SS.FF'));\n  DBMS_OUTPUT.PUT_LINE('END  :'||TO_CHAR(e2,'YYYY-MM-DD HH24:MI:SS.FF'));\n  DBMS_OUTPUT.PUT_LINE(e2 - s2);\nEND;\n\/<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">inner_procedure1\u304c\u3001OUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3059\u308b\u300c\uff11\uff0e\u300d\u306e\u30b1\u30fc\u30b9\u3067\u3001inner_procedure2\u304c\u3001\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3059\u308b\u300c\uff12\uff0e\u300d\u306e\u30b1\u30fc\u30b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u306f\u4f55\u56de\u304b\u5b9f\u884c\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u7d50\u679c\u306f\u3001\u3001\u3001<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"oracledb\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\uff08\u30fb\u30fb\u30fb\u7565\u30fb\u30fb\u30fb\uff09\n12:41:11  39  \/\nSTART:2022-11-30 12:41:11.901000000\nEND  :2022-11-30 12:41:12.665000000\n+000000000 00:00:00.764000000\nSTART:2022-11-30 12:41:12.665000000\nEND  :2022-11-30 12:41:13.149000000\n+000000000 00:00:00.484000000\n\nPL\/SQL\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002\n\n\u7d4c\u904e: 00:00:01.26\n12:41:13 SQL> \/\nSTART:2022-11-30 12:41:18.841000000\nEND  :2022-11-30 12:41:19.492000000\n+000000000 00:00:00.651000000\nSTART:2022-11-30 12:41:19.492000000\nEND  :2022-11-30 12:41:19.872000000\n+000000000 00:00:00.380000000\n\nPL\/SQL\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002\n\n\u7d4c\u904e: 00:00:01.03\n12:41:19 SQL> \/\nSTART:2022-11-30 12:41:23.800000000\nEND  :2022-11-30 12:41:24.439000000\n+000000000 00:00:00.639000000\nSTART:2022-11-30 12:41:24.439000000\nEND  :2022-11-30 12:41:24.818000000\n+000000000 00:00:00.379000000\n\nPL\/SQL\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002\n\n\u7d4c\u904e: 00:00:01.02\n12:41:24 SQL><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\uff12\uff0e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3057\u3066\u3001\u6700\u5f8c\u306bOUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3078\u7d50\u679c\u3092\u30bb\u30c3\u30c8\u3059\u308b\u300d\u65b9\u304c\u304a\u3088\u305d1.5\u500d\u307b\u3069\u3001\u306f\u3084\u3044\uff01\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3001\u3044\u3046\u3053\u3068\u3067\u4eca\u5f8c\u306fOUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u6700\u5f8c\u306e\u4e00\u56de\u306e\u307f\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3057\u3066\u3001\u6700\u5f8c\u306bOUT\u30d1\u30e9\u30e1\u30fc\u30bf\u3078\u7d50\u679c\u3092\u30bb\u30c3\u30c8\u3057\u305f\u65b9\u304c\u306f\u3084\u3044\u3001\u3068\u3044\u3046\u306e\u306f\u7d50\u679c\u304b\u3089\u307f\u308b\u3068\u305d\u306e\u3068\u304a\u308a\u306a\u306e\u3067\u3059\u304c\u3001\u5b9f\u306f\u300110000000\u56de\uff081\u5343\u4e07\u56de\uff09\u30eb\u30fc\u30d7\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3088\u306d\u3002\u305d\u306e\u4e0a\u3067\u3001\u65e9\u304f\u306a\u3063\u305f\u306e\u306f\u30010.3\u79d2\u672a\u6e80\u306a\u306e\u3067\u3001\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u4f55\u5ea6\u3082\u6271\u308f\u306a\u3044\u9650\u308a\u306f\u6c17\u306b\u3057\u306a\u304f\u3066\u3082\u826f\u3055\u305d\u3046\u3067\u3059\u3002\u5104\u8d85\u3048\u306e\u30c7\u30fc\u30bf\u3092\u3057\u3087\u3063\u3061\u3085\u3046\u6271\u3046\u3088\u3046\u306a\u4eba\u306f\u3001\u3061\u3087\u3063\u3068\u305a\u3064\u52b9\u3044\u3066\u304d\u307e\u3059\u306e\u3067\u3001\u6c17\u306b\u3057\u307e\u3057\u3087\u3046\uff01<br>\u307c\u304f\u306f\u3068\u3063\u3066\u3082\u6c17\u306b\u306a\u308a\u307e\u3059\uff01\uff01\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u77f3\u5ddd\u3055\u3093\u3067\u3059\u3002 \u6700\u8fd1ORACLE\u306ePL\/SQL\u3067\u30b9\u30c8\u30a2\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002\u3069\u3063\u3061\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u826f\u3044\u306e\u304b\u3001\u3061\u3087\u3063\u3068\u6c17\u306b\u306a\u3063\u305f\u306e\u3067\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002 \u4f5c\u3063\u3066\u3044\u305f\u306e\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\uff11\u884c\u305a\u3064\u8aad\u307f\u8fbc\u3093\u3067\u3001\u8af8\u3005\u30c1 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.ishikawasekkei.com\/index.php\/2022\/12\/03\/oracle-plsql-performance-difference-variable-usage\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;ORACLE PL\/SQL \u5909\u6570\u306e\u4f7f\u3044\u65b9\u306e\u9055\u3044\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u78ba\u8a8d&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,2],"tags":[],"class_list":["post-2013","post","type-post","status-publish","format-standard","hentry","category-program","category-blog"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"sTone\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.ishikawasekkei.com\/index.php\/2022\/12\/03\/oracle-plsql-performance-difference-variable-usage\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"ja_JP\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u682a\u5f0f\u4f1a\u793e \u77f3\u5ddd\u8a2d\u8a08 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name=\"twitter:title\" content=\"ORACLE PL\/SQL \u5909\u6570\u306e\u4f7f\u3044\u65b9\u306e\u9055\u3044\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u78ba\u8a8d | \u682a\u5f0f\u4f1a\u793e \u77f3\u5ddd\u8a2d\u8a08 \u30b7\u30b9\u30c6\u30e0\u958b\u767a\u3092\u3068\u3053\u3068\u3093\u6975\u3081\u307e\u3059\uff01\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/www.ishikawasekkei.com\/wp-content\/uploads\/2019\/02\/cropped-ishikawasekkei-2.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.ishikawasekkei.com\\\/index.php\\\/2022\\\/12\\\/03\\\/oracle-plsql-performance-difference-variable-usage\\\/#article\",\"name\":\"ORACLE PL\\\/SQL \\u5909\\u6570\\u306e\\u4f7f\\u3044\\u65b9\\u306e\\u9055\\u3044\\u306b\\u3088\\u308b\\u30d1\\u30d5\\u30a9\\u30fc\\u30de\\u30f3\\u30b9\\u78ba\\u8a8d | \\u682a\\u5f0f\\u4f1a\\u793e 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