{"id":53,"date":"2008-03-06T00:04:25","date_gmt":"2008-03-06T04:04:25","guid":{"rendered":"http:\/\/www.prglab.com\/blog\/p\/53"},"modified":"2020-11-03T12:10:12","modified_gmt":"2020-11-03T16:10:12","slug":"sap-abap-%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/www.prglab.com\/blog\/p\/53","title":{"rendered":"SAP ABAP \u6027\u80fd\u4f18\u5316\u6280\u5de7"},"content":{"rendered":"<p>\u672c\u6587\u8bd1\u81ea theSpot4SAP.com\u7684<a href=\"http:\/\/www.thespot4sap.com\/Articles\/SAPABAPPerformanceTuning_Introduction.asp\" target=\"_blank\" rel=\"noopener noreferrer\">SAP ABAP Performance Tuning Tips &amp; Tricks Introduction<\/a><\/p>\n<h1><span style=\"font-family: Arial;\"><span lang=\"EN-US\"><span style=\"font-size: medium;\">\u6027\u80fd\u4f18\u5316\u7684\u5fc5\u8981\u6027<\/span><\/span><\/span><\/h1>\n<p class=\"MsoNormal\">ABAP\u662fSAP\u7f16\u7a0b\u4e2d\u7684\u901a\u7528\u8bed\u8a00\u3002\u5728\u5f88\u591a\u5de5\u7a0b\u9879\u76ee\u4e2d\uff0c\u4e00\u4e2a\u91cd\u8981\u7684\u4efb\u52a1\u90fd\u662f\u5c3d\u5feb\u7ec4\u5efa\u4e00\u652fABAP\u7a0b\u5e8f\u5458\u961f\u4f0d\uff0c\u5c06\u8bbe\u8ba1\u6587\u6863\u4ea4\u7ed9\u4ed6\u4eec\uff0c\u7136\u540e\u5728\u8ba1\u5212\u5de5\u671f\u4e4b\u5185\u5b8c\u6210ABAP\u7a0b\u5e8f\u7684\u7f16\u5199\u3002<\/p>\n<p class=\"MsoNormal\">\u5728\u8fd9\u79cd\u671f\u9650\u7684\u538b\u529b\u4e4b\u4e0b\uff0c\u5f80\u5f80\u7a0b\u5e8f\u7684\u6548\u7387\u5c31\u88ab\u5ffd\u7565\u4e86\u3002\u4e00\u4e2a\u6709\u6548\u7684\u7a0b\u5e8f\u5e94\u8be5\u80fd\u591f\u5728\u6709\u9650\u7684\u65f6\u95f4\u5185\u4ea7\u751f\u8981\u6c42\u7684\u8f93\u51fa\uff0c\u65f6\u95f4\u7684\u957f\u77ed\u53d6\u51b3\u4e8e\u7a0b\u5e8f\u7684\u590d\u6742\u5ea6\uff0c\u800c\u4e0d\u662f\u50cf\u6211\u4eec\u5e38\u5e38\u542c\u5230\u7684\u90a3\u6837\uff0c\u5f00\u59cb\u8fd0\u884c\u4e00\u4e2a\u7a0b\u5e8f\u7136\u540e\u5348\u996d\u56de\u6765\u540e\u518d\u770b\u7ed3\u679c\u3002<\/p>\n<p class=\"MsoNormal\">\u4e5f\u8bb8\u4ee5\u4e0a\u8bf4\u6cd5\u6709\u4e9b\u5938\u5f20\uff0c\u4f46\u4e00\u4e2a\u6027\u80fd\u4f18\u5316\u7684ABAP\u7a0b\u5e8f\u7684\u786e\u53ef\u4ee5\u4e3a\u7ec8\u7aef\u7528\u6237\u8282\u7701\u65f6\u95f4\uff0c\u4ece\u800c\u589e\u52a0\u7528\u6237\u7684\u4ea7\u91cf\uff0c\u53cd\u8fc7\u6765\u4e5f\u53d6\u60a6\u4e86\u7528\u6237\u548c\u7ba1\u7406\u8005\u3002<\/p>\n<p class=\"MsoNormal\">\u8fd9\u4e2a\u6559\u7a0b\u7740\u91cd\u4ecb\u7ecd\u5404\u79cd\u6027\u80fd\u4f18\u5316\u7684\u6280\u5de7\u4f7f\u5f97ABAP\u7684\u7a0b\u5e8f\u53ef\u4ee5\u66f4\u52a0\u6709\u6548\u7684\u5b8c\u6210\u5b83\u4eec\u7684\u5de5\u4f5c\u3002\u6559\u7a0b\u9762\u5411\u5df2\u719f\u7ec3\u638c\u63e1ABAP\u5404\u79cd\u6982\u5ff5\u548c\u8bed\u6cd5\u7684\u7f16\u7a0b\u4eba\u5458\u3002<\/p>\n<p class=\"MsoNormal\">\u8bf4\u660e\uff1a\u7a0b\u5e8f\u7684\u6027\u80fd\u5f88\u591a\u65f6\u5019\u4e5f\u662f\u53d7\u5230\u786c\u4ef6\u7684\u9650\u5236\uff0c\u8fd9\u4e9b\u4e0d\u5728\u672c\u6587\u7684\u8ba8\u8bba\u8303\u56f4\u4e4b\u5185\u3002<\/p>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-family: Arial;\"><span style=\"font-size: small;\"> =======================================================================<\/span><\/span><\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"font-family: Arial;\"><strong><span lang=\"en-us\"><span style=\"font-size: small;\">\u672c\u6559\u7a0b\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7ae0\uff0c\u6bcf\u4e00\u7ae0\u4ecb\u7ecd\u4e00\u79cd\u6280\u5de7\uff1a<\/span><\/span><\/strong><\/span><\/p>\n<ul>\n<li>\n<p class=\"MsoNormal\"><a href=\"http:\/\/www.prglab.com\/blog\/p\/53\"><span lang=\"en-us\"><span style=\"font-size: small;\"> \u6559\u7a0b\u7b80\u4ecb\u3000(\u672c\u9875)<\/span><\/span><\/a><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/54\"> \u9009\u62e9\u6761\u4ef6\u3000\uff08Selection criteria\uff09<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/55\"> \u96c6\u5408\u51fd\u6570\u3000\uff08Aggregate functions\uff09<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/56\">\u89c6\u56fe\u53d6\u4ee3\u57fa\u672c\u8868 \uff08Views instead of base tables\uff09<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><a href=\"http:\/\/www.prglab.com\/blog\/p\/57\"><span lang=\"en-us\"><span style=\"font-size: small;\">&#8220;into table&#8221; \u8bed\u53e5 \uff08<\/span><\/span><span style=\"font-family: Arial;\"><span style=\"font-size: small;\">The &#8220;into table&#8221; clause<\/span><\/span><span lang=\"en-us\"><span style=\"font-size: small;\">\uff09<\/span><\/span><\/a><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><a href=\"http:\/\/www.prglab.com\/blog\/p\/58\"><span lang=\"en-us\"><span style=\"font-size: small;\"> \u4fee\u6539\u4e00\u7ec4\u7eaa\u5f55 \uff08Modifying a group of lines\uff09<\/span><\/span><\/a><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/59\">\u4f7f\u7528\u4e8c\u5206\u67e5\u627e\u9009\u9879 (Use of binary search option)<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/60\"> \u5411\u5185\u8868\u6dfb\u52a0\u7eaa\u5f55 \uff08Appending two internal tables\uff09<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/61\">\u7f13\u5b58\u8868 \uff08Table buffering\uff09<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/62\">\u4f7f\u7528 &#8220;for all entries&#8221;<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/63\">&#8220;where&#8221; \u8bed\u53e5\u7684\u6b63\u786e\u7ed3\u6784<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/64\">\u6b63\u786e\u4f7f\u7528&#8221;move&#8221; \u8bed\u53e5<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/65\">\u6b63\u786e\u4f7f\u7528&#8221;inner join&#8221;<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/66\">\u4f7f\u7528 &#8220;ABAP Sort&#8221; \u53d6\u4ee3 &#8220;Order By&#8221;<\/a><\/span><\/span><\/p>\n<\/li>\n<li>\n<p class=\"MsoNormal\"><span lang=\"en-us\"><span style=\"font-size: small;\"> <a href=\"http:\/\/www.prglab.com\/blog\/p\/67\"> \u6027\u80fd\u5206\u6790\u7684\u5de5\u5177<\/a><\/span><\/span><\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u8bd1\u81ea theSpot4SAP.com\u7684SAP ABAP Performance Tuning Tips &amp; Tricks Introduction \u6027\u80fd\u4f18\u5316\u7684\u5fc5\u8981\u6027 ABAP\u662fSAP\u7f16\u7a0b\u4e2d\u7684\u901a\u7528\u8bed\u8a00\u3002\u5728\u5f88\u591a\u5de5\u7a0b\u9879\u76ee\u4e2d\uff0c\u4e00\u4e2a\u91cd\u8981\u7684\u4efb\u52a1\u90fd\u662f\u5c3d\u5feb\u7ec4\u5efa\u4e00\u652fABAP\u7a0b\u5e8f\u5458\u961f\u4f0d\uff0c\u5c06\u8bbe\u8ba1\u6587\u6863\u4ea4\u7ed9\u4ed6\u4eec\uff0c\u7136\u540e\u5728\u8ba1\u5212\u5de5\u671f\u4e4b\u5185\u5b8c\u6210ABAP\u7a0b\u5e8f\u7684\u7f16\u5199\u3002 \u5728\u8fd9\u79cd\u671f\u9650\u7684\u538b\u529b\u4e4b\u4e0b\uff0c\u5f80\u5f80\u7a0b\u5e8f\u7684\u6548\u7387\u5c31\u88ab\u5ffd\u7565\u4e86\u3002\u4e00\u4e2a\u6709\u6548\u7684\u7a0b\u5e8f\u5e94\u8be5\u80fd\u591f\u5728\u6709\u9650\u7684\u65f6\u95f4\u5185\u4ea7\u751f\u8981\u6c42\u7684\u8f93\u51fa\uff0c\u65f6\u95f4\u7684\u957f\u77ed\u53d6\u51b3\u4e8e\u7a0b\u5e8f\u7684\u590d\u6742\u5ea6\uff0c\u800c\u4e0d\u662f\u50cf\u6211\u4eec\u5e38\u5e38\u542c\u5230\u7684\u90a3\u6837\uff0c\u5f00\u59cb\u8fd0\u884c\u4e00\u4e2a\u7a0b\u5e8f\u7136\u540e\u5348\u996d\u56de\u6765\u540e\u518d\u770b\u7ed3\u679c\u3002 \u4e5f\u8bb8\u4ee5\u4e0a\u8bf4\u6cd5\u6709\u4e9b\u5938\u5f20\uff0c\u4f46\u4e00\u4e2a\u6027\u80fd\u4f18\u5316\u7684ABAP\u7a0b\u5e8f\u7684\u786e\u53ef\u4ee5\u4e3a\u7ec8\u7aef\u7528\u6237\u8282\u7701\u65f6\u95f4\uff0c\u4ece\u800c\u589e\u52a0\u7528\u6237\u7684\u4ea7\u91cf\uff0c\u53cd\u8fc7\u6765\u4e5f\u53d6\u60a6\u4e86\u7528\u6237\u548c\u7ba1\u7406\u8005\u3002 \u8fd9\u4e2a\u6559\u7a0b\u7740\u91cd\u4ecb\u7ecd\u5404\u79cd\u6027\u80fd\u4f18\u5316\u7684\u6280\u5de7\u4f7f\u5f97ABAP\u7684\u7a0b\u5e8f\u53ef\u4ee5\u66f4\u52a0\u6709\u6548\u7684\u5b8c\u6210\u5b83\u4eec\u7684\u5de5\u4f5c\u3002\u6559\u7a0b\u9762\u5411\u5df2\u719f\u7ec3\u638c\u63e1ABAP\u5404\u79cd\u6982\u5ff5\u548c\u8bed\u6cd5\u7684\u7f16\u7a0b\u4eba\u5458\u3002 \u8bf4\u660e\uff1a\u7a0b\u5e8f\u7684\u6027\u80fd\u5f88\u591a\u65f6\u5019\u4e5f\u662f\u53d7\u5230\u786c\u4ef6\u7684\u9650\u5236\uff0c\u8fd9\u4e9b\u4e0d\u5728\u672c\u6587\u7684\u8ba8\u8bba\u8303\u56f4\u4e4b\u5185\u3002 ======================================================================= \u672c\u6559\u7a0b\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7ae0\uff0c\u6bcf\u4e00\u7ae0\u4ecb\u7ecd\u4e00\u79cd\u6280\u5de7\uff1a \u6559\u7a0b\u7b80\u4ecb\u3000(\u672c\u9875) \u9009\u62e9\u6761\u4ef6\u3000\uff08Selection criteria\uff09 \u96c6\u5408\u51fd\u6570\u3000\uff08Aggregate functions\uff09 \u89c6\u56fe\u53d6\u4ee3\u57fa\u672c\u8868 \uff08Views instead of base tables\uff09 &#8220;into table&#8221; \u8bed\u53e5 \uff08The &#8220;into table&#8221; clause\uff09 \u4fee\u6539\u4e00\u7ec4\u7eaa\u5f55 \uff08Modifying a group of lines\uff09 \u4f7f\u7528\u4e8c\u5206\u67e5\u627e\u9009\u9879 (Use of binary search option) \u5411\u5185\u8868\u6dfb\u52a0\u7eaa\u5f55 \uff08Appending two internal tables\uff09 \u7f13\u5b58\u8868 \uff08Table buffering\uff09 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/posts\/53"}],"collection":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/comments?post=53"}],"version-history":[{"count":2,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/posts\/53\/revisions"}],"predecessor-version":[{"id":364,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/posts\/53\/revisions\/364"}],"wp:attachment":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/media?parent=53"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/categories?post=53"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/tags?post=53"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}