{"id":60717,"date":"2026-01-16T08:57:19","date_gmt":"2026-01-16T00:57:19","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/60717.html"},"modified":"2026-01-16T08:57:19","modified_gmt":"2026-01-16T00:57:19","slug":"%e8%be%be%e6%a2%a6%e6%95%b0%e6%8d%ae%e5%ba%93-%e5%ad%a6%e4%b9%a0-41-%e8%a1%a8%e5%a4%a7%e5%b0%8f%e5%bf%ab%e9%80%9f%e4%bc%b0%e7%ae%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/60717.html","title":{"rendered":"\u8fbe\u68a6\u6570\u636e\u5e93-\u5b66\u4e60-41-\u8868\u5927\u5c0f\u5feb\u901f\u4f30\u7b97"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"-toc\" style=\"margin-left:0px\">\n<p id=\"%E4%B8%80%E3%80%81%E7%8E%AF%E5%A2%83%E4%BF%A1%E6%81%AF-toc\" style=\"margin-left:0px\">\u4e00\u3001\u73af\u5883\u4fe1\u606f<\/p>\n<p id=\"%E4%BA%8C%E3%80%81%E4%BB%8B%E7%BB%8D-toc\" style=\"margin-left:0px\">\u4e8c\u3001\u4ecb\u7ecd<\/p>\n<p id=\"%E4%B8%89%E3%80%81%E5%8A%9F%E8%83%BD%E4%BB%8B%E7%BB%8D-toc\" style=\"margin-left:0px\">\u4e09\u3001\u529f\u80fd\u4ecb\u7ecd<\/p>\n<p id=\"1%E3%80%81%E5%AE%9A%E4%B9%89-toc\" style=\"margin-left:40px\">1\u3001\u5b9a\u4e49<\/p>\n<p id=\"2%E3%80%81%E8%87%AA%E8%B0%83%E6%95%B4-toc\" style=\"margin-left:40px\">2\u3001\u81ea\u8c03\u6574<\/p>\n<p id=\"3%E3%80%81%E6%8F%90%E7%A4%BA-toc\" style=\"margin-left:40px\">3\u3001\u63d0\u793a<\/p>\n<p id=\"%E5%9B%9B%E3%80%81%E5%AE%9E%E9%AA%8C-toc\" style=\"margin-left:0px\">\u56db\u3001\u5b9e\u9a8c<\/p>\n<p id=\"1%E3%80%81%E6%B5%8B%E8%AF%95%E6%95%B0%E6%8D%AE-toc\" style=\"margin-left:40px\">1\u3001\u6d4b\u8bd5\u6570\u636e<\/p>\n<p id=\"2%E3%80%81%E8%A7%86%E5%9B%BE%E6%9F%A5%E7%9C%8B%E8%A1%A8%E5%A4%A7%E5%B0%8F-toc\" style=\"margin-left:40px\">2\u3001\u89c6\u56fe\u67e5\u770b\u8868\u5927\u5c0f<\/p>\n<p id=\"3%E3%80%81%E5%8C%BF%E5%90%8D%E5%9D%97%E8%AE%A1%E7%AE%97%E8%A1%A8%E5%A4%A7%E5%B0%8F-toc\" style=\"margin-left:40px\">3\u3001\u533f\u540d\u5757\u8ba1\u7b97\u8868\u5927\u5c0f<\/p>\n<hr id=\"hr-toc\" \/>\n<h2 id=\"%E4%B8%80%E3%80%81%E7%8E%AF%E5%A2%83%E4%BF%A1%E6%81%AF\">\u4e00\u3001\u73af\u5883\u4fe1\u606f<\/h2>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td>\u540d\u79f0<\/td>\n<td>\u503c<\/td>\n<\/tr>\n<tr>\n<td>CPU<\/td>\n<td>12th Gen Intel(R) Core(TM) i7-12700H<\/td>\n<\/tr>\n<tr>\n<td>\u64cd\u4f5c\u7cfb\u7edf<\/td>\n<td>CentOS Linux release 7.9.2009 (Core)<\/td>\n<\/tr>\n<tr>\n<td>\u5185\u5b58<\/td>\n<td>4G<\/td>\n<\/tr>\n<tr>\n<td>\u903b\u8f91\u6838\u6570<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>DM\u7248\u672c<\/td>\n<td>1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0DM Database Server 64 V8 2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0DB Version: 0x7000d 3 \u00a0 \u00a0 \u00a0 \u00a0 \u00a003134284336-20250218-260144-20132 4 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Msg Version: 32 5 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Gsu level(5) cnt: 0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"%E4%BA%8C%E3%80%81%E4%BB%8B%E7%BB%8D\">\u4e8c\u3001\u4ecb\u7ecd<\/h2>\n<p>\u6700\u8fd1\u5728\u4f7f\u7528\u8fbe\u68a6\u6570\u636e\u5e93\u7684\u65f6\u5019&#xff0c;\u53d1\u73b0\u5220\u9664\u6570\u636e\u540e&#xff0c;\u8fc7\u4e00\u6bb5\u65f6\u95f4&#xff0c;\u8868\u5927\u5c0f\u4e0d\u56de\u7f29&#xff0c;\u5224\u65ad\u8fbe\u68a6\u5728\u5220\u9664\u6570\u636e\u65f6&#xff0c;\u548cPG\u6570\u636e\u5e93\u7c7b\u4f3c&#xff0c;\u4e0d\u4f1a\u7acb\u9a6c\u5220\u9664\u6570\u636e&#xff0c;\u53ea\u662f\u6253\u4e86\u6807\u8bb0&#xff0c;\u9700\u8981\u8fdb\u884c\u7a7a\u6d1e\u7387\u6e05\u7406\u624d\u53ef\u4ee5\u91ca\u653e\u7a7a\u95f4&#xff0c;\u6e05\u7406\u524d\u5360\u75281.4T&#xff0c;\u91cd\u5efa\u8868\u540e\u4e3a140G&#xff0c;\u6240\u4ee5\u5199\u4e86\u4e00\u4e2a\u533f\u540d\u5757\u5b9e\u73b0\u8868\u5927\u5c0f\u5feb\u901f\u4f30\u7b97&#xff0c;\u56e0\u4e3a\u5f88\u591a\u751f\u4ea7\u73af\u5883\u662f\u4e0d\u5141\u8bb8\u521b\u5efa\u5b58\u8fc7\u7684\u3002<\/p>\n<h2 id=\"%E4%B8%89%E3%80%81%E5%8A%9F%E8%83%BD%E4%BB%8B%E7%BB%8D\">\u4e09\u3001\u529f\u80fd\u4ecb\u7ecd<\/h2>\n<h3 id=\"1%E3%80%81%E5%AE%9A%E4%B9%89\">1\u3001\u5b9a\u4e49<\/h3>\n<p>&#8211;SET SERVEROUTPUT ON<\/p>\n<p>\/*\u6b64\u533f\u540d\u5757\u4e0d\u8ba1\u7b97\u5b57\u6bb5\u548c\u5b57\u6bb5\u7684\u5b57\u8282\u586b\u5145&#xff08;\u5b57\u8282\u5bf9\u9f50&#xff09;\u3002*\/<br \/>\nDECLARE<br \/>\n    UserName         VARCHAR(50)  :&#061; &#039;SYSDBA&#039;;<br \/>\n    TabName          VARCHAR(50)  :&#061; &#039;SUN&#039;;<\/p>\n<p>    TYPE HashTabT  IS TABLE OF INT INDEX BY VARCHAR2(50);<br \/>\n    TYPE StrArrayT IS TABLE OF VARCHAR2(50) INDEX BY PLS_INTEGER;<\/p>\n<p>    TypeMap          HashTabT;           \/*\u7c7b\u578b\u6620\u5c04\u8868\u3002*\/<br \/>\n    ColSets          StrArrayT;          \/*\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u8868\u3002*\/<br \/>\n    ColSetsIdx       INT          :&#061; 0;  \/*\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u8868\u7684\u7d22\u5f15\u3002*\/<br \/>\n    ComputeFlag      INT          :&#061; -1; \/*\u6253\u4e86\u6b64\u6807\u8bb0\u7684\u5217&#xff0c;\u5b9e\u9645\u8ba1\u7b97\u5927\u5c0f\u3002*\/<br \/>\n    PartComputeFlag  INT          :&#061; -2; \/*\u6253\u4e86\u6b64\u6807\u8bb0\u7684\u5217&#xff0c;\u90e8\u5206\u8ba1\u7b97\u5927\u5c0f&#xff0c;\u6839\u636e\u5217\u957f\u5ea6\u3002*\/<br \/>\n    OneRowSize       INT          :&#061; 0;  \/*\u4e00\u884c\u7684\u5b57\u8282\u6570\u603b\u548c&#xff0c;\u4e0d\u5305\u542b ComputeFlag\u3002*\/<br \/>\n    ColSize          PLS_INTEGER  :&#061; 0;  \/*\u4e00\u5217\u7684\u5b57\u8282\u6570\u3002*\/<br \/>\n    TotalSize        BIGINT       :&#061; 0;  \/*\u8868\u6574\u4f53\u5b57\u8282\u6570\u3002*\/<br \/>\n    CntSql           VARCHAR(200) :&#061; &#039;SELECT COUNT(*) FROM &#039;||UserName||&#039;.&#039;||TabName;<br \/>\n    Cnt              BIGINT       :&#061; 0;  \/*\u8868\u884c\u6570\u3002*\/<br \/>\n    ComputeSql       TEXT         :&#061; &#039;SELECT SUM(&#039;;<br \/>\n    ComputeSize      BIGINT       :&#061; 0;  \/*\u8868\u9700\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u603b\u548c\u5b57\u8282\u6570\u3002*\/<br \/>\nBEGIN<br \/>\n    DBMS_OUTPUT.ENABLE;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;UserName            : &#039;||UserName);<br \/>\n    DBMS_OUTPUT.PUT_LINE(&#039;TabName             : &#039;||TabName);<\/p>\n<p>\/*\u521d\u59cb\u5316HASH\u6876\u3002*\/<br \/>\n    TypeMap(&#039;CHAR&#039;)                                  :&#061; PartComputeFlag;<br \/>\n    TypeMap(&#039;VARCHAR&#039;)                               :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;VARCHAR2&#039;)                              :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;TINYINT&#039;)                               :&#061; 1;<br \/>\n    TypeMap(&#039;BIT&#039;)                                   :&#061; 1;<br \/>\n    TypeMap(&#039;BYTE&#039;)                                  :&#061; 1;<br \/>\n    TypeMap(&#039;SMALLINT&#039;)                              :&#061; 2;<br \/>\n    TypeMap(&#039;INT&#039;)                                   :&#061; 4;<br \/>\n    TypeMap(&#039;BIGINT&#039;)                                :&#061; 8;<br \/>\n    TypeMap(&#039;REAL&#039;)                                  :&#061; 4;<br \/>\n    TypeMap(&#039;FLOAT&#039;)                                 :&#061; 8;<br \/>\n    TypeMap(&#039;DOUBLE&#039;)                                :&#061; 8;<br \/>\n    TypeMap(&#039;DOUBLE PRECISION&#039;)                      :&#061; 8;<br \/>\n    TypeMap(&#039;DEC&#039;)                                   :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;DECIMAL&#039;)                               :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;NUMERIC&#039;)                               :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;NUMBER&#039;)                                :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;BINARY&#039;)                                :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;VARBINARY&#039;)                             :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;DATE&#039;)                                  :&#061; 3;<br \/>\n    TypeMap(&#039;TIME&#039;)                                  :&#061; 5;<br \/>\n    TypeMap(&#039;TIMESTAMP&#039;)                             :&#061; 8;<br \/>\n    TypeMap(&#039;DATETIME&#039;)                              :&#061; 8;<br \/>\n    TypeMap(&#039;TIME WITH TIME ZONE&#039;)                   :&#061; 7;<br \/>\n    TypeMap(&#039;TIMESTAMP WITH TIME ZONE&#039;)              :&#061; 10;<br \/>\n    TypeMap(&#039;DATETIME WITH TIME ZONE&#039;)               :&#061; 10;   \/*\u53c2\u8003\u7c7b\u578b TIMESTAMP WITH TIME ZONE*\/<br \/>\n    TypeMap(&#039;INTERVAL YEAR&#039;)                         :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL MONTH&#039;)                        :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL YEAR TO MONTH&#039;)                :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL DAY&#039;)                          :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR&#039;)                         :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL MINUTE&#039;)                       :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL SECOND&#039;)                       :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO HOUR&#039;)                  :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO MINUTE&#039;)                :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO SECOND&#039;)                :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR TO MINUTE&#039;)               :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR TO SECOND&#039;)               :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL MINUTE TO SECOND&#039;)             :&#061; 24;<br \/>\n    TypeMap(&#039;BLOB&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;IMAGE&#039;)                                 :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;LONGVARBINARY&#039;)                         :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;CLOB&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;TEXT&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;LONGVARCHAR&#039;)                           :&#061; ComputeFlag;<\/p>\n<p>    \/*\u83b7\u53d6\u4e00\u5217\u7684\u5b57\u8282\u6570&#xff0c;\u4e0d\u5305\u542b\u9700\u8ba1\u7b97\u5217\u3002*\/<br \/>\n    FOR I IN (SELECT COLUMN_ID,COLUMN_NAME,DATA_TYPE,DATA_LENGTH FROM DBA_TAB_COLUMNS WHERE OWNER &#061; UserName AND TABLE_NAME &#061; TabName ORDER BY COLUMN_ID) LOOP<\/p>\n<p>        \/*\u5224\u65ad\u5217\u7c7b\u578b\u662f\u5426\u5b58\u5728\u3002*\/<br \/>\n        IF !(TypeMap.EXISTS(I.DATA_TYPE)) THEN<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;ColId               : &#039;||I.COLUMN_ID);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Col                 : &#039;||I.COLUMN_NAME);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Unknown Type        : &#039;||I.DATA_TYPE);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Len                 : &#039;||I.DATA_LENGTH);<br \/>\n            RETURN;<br \/>\n        END IF;<\/p>\n<p>        ColSize &#061; TypeMap(I.DATA_TYPE);<\/p>\n<p>        \/*\u6839\u636e\u4e0d\u540c\u7c7b\u578b\u8fdb\u884c\u4e0d\u540c\u7684\u5904\u7406\u3002*\/<br \/>\n        IF ColSize &#061; PartComputeFlag THEN<br \/>\n        ColSize :&#061; I.DATA_LENGTH;<br \/>\n        ELSIF ColSize &#061; ComputeFlag THEN<br \/>\n        ColSize :&#061; 0;<br \/>\n            ColSets(ColSetsIdx) :&#061; I.COLUMN_NAME;<br \/>\n            ColSetsIdx :&#061; ColSetsIdx &#043; 1;<br \/>\n        ELSE<br \/>\n            ColSize :&#061; TypeMap(I.DATA_TYPE);<br \/>\n        END IF;<\/p>\n<p>        OneRowSize :&#061; OneRowSize &#043; ColSize;<\/p>\n<p>        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColId               : &#039;||I.COLUMN_ID);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Col                 : &#039;||I.COLUMN_NAME);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Type                : &#039;||I.DATA_TYPE);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Len                 : &#039;||I.DATA_LENGTH);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColSize             : &#039;||ColSize);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#039;);<br \/>\n    END LOOP;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;OneRowSize(Bytes)   : &#039;||OneRowSize);<\/p>\n<p>    \/*OneRowSize \u4e0d\u53ef\u80fd\u4e3a0&#xff0c;\u8bf4\u660e\u6a21\u5f0f\u6216\u8868\u4e0d\u5b58\u5728\u3002*\/<br \/>\n    IF OneRowSize &#061; 0 THEN<br \/>\n    DBMS_OUTPUT.PUT_LINE(&#039;The user or table does not exist.&#039;);<br \/>\n        RETURN;<br \/>\n    END IF;<\/p>\n<p>    \/*\u8ba1\u7b97\u8868\u7684\u603b\u6761\u6570\u3002*\/<br \/>\n    EXECUTE IMMEDIATE CntSql INTO Cnt;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;Cnt                 : &#039;||Cnt);<br \/>\n    &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColSetsIdx          : &#039;||ColSetsIdx);<\/p>\n<p>    \/*\u5224\u65ad\u662f\u5426\u9700\u8981\u8fdb\u884c\u5b9e\u9645\u8ba1\u7b97\u3002*\/<br \/>\n    IF (ColSetsIdx &gt; 0) AND (Cnt &gt; 0) THEN<\/p>\n<p>        ColSetsIdx :&#061; ColSetsIdx &#8211; 1;<\/p>\n<p>    FOR Y IN 0..ColSetsIdx LOOP<br \/>\n    ComputeSql :&#061; ComputeSql||&#039;NVL(LENGTHB(&#039;||ColSets(Y)||&#039;),0)&#039;;<br \/>\n            IF Y !&#061; ColSetsIdx THEN<br \/>\n            ComputeSql :&#061; ComputeSql||&#039; &#043; &#039;;<br \/>\n            END IF;<br \/>\n        END LOOP;<\/p>\n<p>        ComputeSql :&#061; ComputeSql||&#039; ) AS TOTAL_SIZE FROM &#039;||UserName||&#039;.&#039;||TabName;<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ComputeSql          : &#039;||ComputeSql);<\/p>\n<p>        EXECUTE IMMEDIATE ComputeSql INTO ComputeSize;<br \/>\n    END IF;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;ComputeSize(Bytes)  : &#039;||ComputeSize);<\/p>\n<p>    \/*\u6240\u6709\u7ed3\u679c\u6c47\u603b\u3002*\/<br \/>\n    TotalSize :&#061; OneRowSize * Cnt &#043; ComputeSize;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;TotalSize(G)        : &#039;|| trunc(TotalSize \/ 1024.0 \/ 1024 \/ 1024 , 3));<br \/>\nEND; <\/p>\n<h3 id=\"2%E3%80%81%E8%87%AA%E8%B0%83%E6%95%B4\">2\u3001\u81ea\u8c03\u6574<\/h3>\n<p>\u67d0\u4e9b\u53d8\u957f\u7c7b\u578b\u6211\u4eec\u662f\u5b9e\u9645\u8ba1\u7b97\u7684&#xff0c;\u5927\u5bb6\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7ed9\u4e00\u4e2a\u4f30\u7b97\u503c&#xff0c;\u65b9\u4fbf\u5feb\u901f\u8ba1\u7b97\u51fa\u7ed3\u679c\u3002<\/p>\n<p>\u5f00\u5934\u7684\u7528\u6237\u540d\u548c\u8868\u540d\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u3002<\/p>\n<h3 id=\"3%E3%80%81%E6%8F%90%E7%A4%BA\">3\u3001\u63d0\u793a<\/h3>\n<p>\u53ea\u505a\u4e86\u63d2\u5165\u7684\u8868&#xff0c;\u548c\u89c6\u56fe\u67e5\u8be2\u51fa\u7684\u5b9e\u9645\u5927\u5c0f\u5199\u4f1a\u6709\u5dee\u5f02&#xff0c;\u56e0\u4e3a\u5e95\u5c42\u8ba1\u7b97\u65b9\u5f0f\u53ef\u80fd\u4e0d\u540c&#xff0c;\u4f8b\u5982\u53ef\u80fd\u4f1a\u8ba1\u7b97&#xff1a;<\/p>\n<p>&#xff08;1&#xff09;\u5b57\u6bb5\u548c\u5b57\u6bb5\u7684\u5b57\u8282\u586b\u5145&#xff0c;\u4e3a\u4e86\u5b57\u8282\u5bf9\u9f50&#xff0c;\u63d0\u5347\u6548\u7387\u3002<\/p>\n<p>&#xff08;2&#xff09;\u5757\u5934\u3002<\/p>\n<p>&#xff08;3&#xff09;\u884c\u5934\u3002<\/p>\n<h2 id=\"%E5%9B%9B%E3%80%81%E5%AE%9E%E9%AA%8C\">\u56db\u3001\u5b9e\u9a8c<\/h2>\n<h3 id=\"1%E3%80%81%E6%B5%8B%E8%AF%95%E6%95%B0%E6%8D%AE\">1\u3001\u6d4b\u8bd5\u6570\u636e<\/h3>\n<p>DROP TABLE IF EXISTS SUN;<br \/>\nCREATE TABLE SUN (T0  SMALLINT,<br \/>\n                  T1  INT,<br \/>\n                  T2  BIGINT,<br \/>\n                  T3  NUMERIC(20,6),<br \/>\n                  T4  DECIMAL(30,8),<br \/>\n                  T5  REAL,<br \/>\n                  T6  DOUBLE PRECISION,<br \/>\n                  T7  SMALLINT,<br \/>\n                  T8  INT,<br \/>\n                  T9  BIGINT,<br \/>\n                  T10 CHAR(10),<br \/>\n                  T11 VARCHAR(4000),<br \/>\n                  T12 TEXT,<br \/>\n                  T13 BLOB,<br \/>\n                  T14 FLOAT,<br \/>\n                  T15 TIMESTAMP,<br \/>\n                  T16 TIMESTAMP WITH TIME ZONE,<br \/>\n                  T17 DATE,<br \/>\n                  T18 TIME,<br \/>\n                  T19 TIME WITH TIME ZONE,<br \/>\n                  T20 INTERVAL YEAR,<br \/>\n                  T21 CHAR(1),<br \/>\n                  T22 VARCHAR(100),<br \/>\n                  T23 CHAR(20),<br \/>\n                  T24 BIGINT);<br \/>\nINSERT INTO SUN  (T0,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24) VALUES<br \/>\n(1,2,918118131,1.1,                   NULL,                      0            ,0.123456789123456789     ,&#039;1&#039;,&#039;SUN&#039;,&#039;BJ&#039;,&#039;18&#039;,1.1,&#039;2025-09-26 09:16:25.674136&#039;,&#039;2025-09-26 09:16:25.674136&#043;08&#039;,&#039;1995-09-18&#039;,&#039;13:36:00.036269&#039;,&#039;15:09:34.266988&#043;08&#039;,&#039;1 YEAR 1 MONTH 1 DAY 01:01:01.1&#039;,&#039;T&#039;,&#039;LXG&#039;,&#039;A&#039;,1);<br \/>\nINSERT INTO SUN  (T0,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24) VALUES<br \/>\n(1,2,918118131,0,                     12345678910111213.12345678,0.12345678910,0                        ,&#039;2&#039;,&#039;LZL&#039;,&#039;WZ&#039;,&#039;19&#039;,0,&#039;2025-09-25 09:16:25.674136&#039;,&#039;2025-09-26 09:16:25.674136&#043;09&#039;,&#039;1995-05-17&#039;,&#039;13:36:00.000009&#039;,&#039;15:09:34.000008&#043;08&#039;,&#039;2 YEAR 1 MONTH 1 DAY 01:01:01.01&#039;,&#039;F&#039;,&#039;LLX&#039;,&#039;B&#039;,2);<br \/>\nINSERT INTO SUN  (T0,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24) VALUES<br \/>\n(1,2,918118131,0.12345,               10000000000000003.12345678,0.123456789  ,1234567893.12456789      ,&#039;3&#039;,&#039;CLX&#039;,&#039;BJWZQZ&#039;,&#039;20&#039;,22,&#039;2025-09-26 09:16:25.123456&#039;,&#039;2025-09-26 10:16:25.674136&#043;08&#039;,&#039;1995-01-18&#039;,&#039;01:30:00.036269&#039;,&#039;12:09:34.266988&#043;08&#039;,&#039;1 YEAR 2 MONTH 1 DAY 01:01:01.001&#039;,&#039;T&#039;,&#039;ZXJ&#039;,&#039;C&#039;,3);<br \/>\nINSERT INTO SUN  (T0,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24) VALUES<br \/>\n(1,2,918118131,1234.1234,             10000000005000000.00050000,123.4567     ,1234567894.123456789     ,&#039;4&#039;,&#039;LDQ&#039;,&#039;WZ&#039;,NULL,1.66,&#039;2025-09-26 09:06:25.674136&#039;,&#039;2025-09-26 09:16:25.674136&#043;08&#039;,&#039;2024-01-31&#039;,&#039;05:30:00.036269&#039;,&#039;01:09:34.266988&#043;08&#039;,&#039;1 YEAR 1 MONTH 2 DAY 01:01:01.0001&#039;,&#039;T&#039;,&#039;LDQ&#039;,&#039;D&#039;,11);<br \/>\nINSERT INTO SUN  (T0,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22,T23,T24) VALUES<br \/>\n(1,2,918118131,12345.123,             12345678910111213.12345678,1234.5678910 ,1234567895.123456789     ,&#039;5&#039;,NULL,NULL,&#039;30&#039;,0.55555,&#039;2025-11-26 09:06:25.674136&#039;,&#039;2025-09-26 09:16:25.674136&#043;08&#039;,&#039;1995-09-18&#039;,&#039;13:36:00.036269&#039;,&#039;00:09:34.266988&#043;08&#039;,&#039;1 YEAR 1 MONTH 1 DAY 02:01:01&#039;,&#039;T&#039;,&#039;CZG&#039;,&#039;E&#039;,22);<\/p>\n<p>INSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nINSERT INTO SUN SELECT * FROM SUN;<br \/>\nCOMMIT; <\/p>\n<h3 id=\"2%E3%80%81%E8%A7%86%E5%9B%BE%E6%9F%A5%E7%9C%8B%E8%A1%A8%E5%A4%A7%E5%B0%8F\">2\u3001\u89c6\u56fe\u67e5\u770b\u8868\u5927\u5c0f<\/h3>\n<p>SELECT<br \/>\n    OWNER,<br \/>\n    SEGMENT_NAME,<br \/>\n    SEGMENT_TYPE,<br \/>\n    ROUND(SUM(BYTES) \/ 1024.0 \/ 1024 \/ 1024, 3) AS TOTAL_SIZE<br \/>\nFROM DBA_SEGMENTS<br \/>\nWHERE<br \/>\nOWNER &#061; &#039;SYSDBA&#039; AND SEGMENT_NAME &#061; &#039;SUN&#039;<br \/>\nGROUP BY OWNER, SEGMENT_NAME, SEGMENT_TYPE;<\/p>\n<p>\u884c\u53f7     OWNER  SEGMENT_NAME SEGMENT_TYPE TOTAL_SIZE<br \/>\n&#8212;&#8212;&#8212;- &#8212;&#8212; &#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;-<br \/>\n1          SYSDBA SUN          TABLE        0.059<\/p>\n<p>\u5df2\u7528\u65f6\u95f4: 771.536(\u6beb\u79d2). \u6267\u884c\u53f7:10112. <\/p>\n<h3 id=\"3%E3%80%81%E5%8C%BF%E5%90%8D%E5%9D%97%E8%AE%A1%E7%AE%97%E8%A1%A8%E5%A4%A7%E5%B0%8F\">3\u3001\u533f\u540d\u5757\u8ba1\u7b97\u8868\u5927\u5c0f<\/h3>\n<p>SET SERVEROUTPUT ON<\/p>\n<p>\/*\u6b64\u533f\u540d\u5757\u4e0d\u8ba1\u7b97\u5b57\u6bb5\u548c\u5b57\u6bb5\u7684\u5b57\u8282\u586b\u5145&#xff08;\u5b57\u8282\u5bf9\u9f50&#xff09;\u3002*\/<br \/>\nDECLARE<br \/>\n    UserName         VARCHAR(50)  :&#061; &#039;SYSDBA&#039;;<br \/>\n    TabName          VARCHAR(50)  :&#061; &#039;SUN&#039;;<\/p>\n<p>    TYPE HashTabT  IS TABLE OF INT INDEX BY VARCHAR2(50);<br \/>\n    TYPE StrArrayT IS TABLE OF VARCHAR2(50) INDEX BY PLS_INTEGER;<\/p>\n<p>    TypeMap          HashTabT;           \/*\u7c7b\u578b\u6620\u5c04\u8868\u3002*\/<br \/>\n    ColSets          StrArrayT;          \/*\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u8868\u3002*\/<br \/>\n    ColSetsIdx       INT          :&#061; 0;  \/*\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u8868\u7684\u7d22\u5f15\u3002*\/<br \/>\n    ComputeFlag      INT          :&#061; -1; \/*\u6253\u4e86\u6b64\u6807\u8bb0\u7684\u5217&#xff0c;\u5b9e\u9645\u8ba1\u7b97\u5927\u5c0f\u3002*\/<br \/>\n    PartComputeFlag  INT          :&#061; -2; \/*\u6253\u4e86\u6b64\u6807\u8bb0\u7684\u5217&#xff0c;\u90e8\u5206\u8ba1\u7b97\u5927\u5c0f&#xff0c;\u6839\u636e\u5217\u957f\u5ea6\u3002*\/<br \/>\n    OneRowSize       INT          :&#061; 0;  \/*\u4e00\u884c\u7684\u5b57\u8282\u6570\u603b\u548c&#xff0c;\u4e0d\u5305\u542b ComputeFlag\u3002*\/<br \/>\n    ColSize          PLS_INTEGER  :&#061; 0;  \/*\u4e00\u5217\u7684\u5b57\u8282\u6570\u3002*\/<br \/>\n    TotalSize        BIGINT       :&#061; 0;  \/*\u8868\u6574\u4f53\u5b57\u8282\u6570\u3002*\/<br \/>\n    CntSql           VARCHAR(200) :&#061; &#039;SELECT COUNT(*) FROM &#039;||UserName||&#039;.&#039;||TabName;<br \/>\n    Cnt              BIGINT       :&#061; 0;  \/*\u8868\u884c\u6570\u3002*\/<br \/>\n    ComputeSql       TEXT         :&#061; &#039;SELECT SUM(&#039;;<br \/>\n    ComputeSize      BIGINT       :&#061; 0;  \/*\u8868\u9700\u5b9e\u65f6\u8ba1\u7b97\u5b57\u6bb5\u603b\u548c\u5b57\u8282\u6570\u3002*\/<br \/>\nBEGIN<br \/>\n    DBMS_OUTPUT.ENABLE;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;UserName            : &#039;||UserName);<br \/>\n    DBMS_OUTPUT.PUT_LINE(&#039;TabName             : &#039;||TabName);<\/p>\n<p>\/*\u521d\u59cb\u5316HASH\u6876\u3002*\/<br \/>\n    TypeMap(&#039;CHAR&#039;)                                  :&#061; PartComputeFlag;<br \/>\n    TypeMap(&#039;VARCHAR&#039;)                               :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;VARCHAR2&#039;)                              :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;TINYINT&#039;)                               :&#061; 1;<br \/>\n    TypeMap(&#039;BIT&#039;)                                   :&#061; 1;<br \/>\n    TypeMap(&#039;BYTE&#039;)                                  :&#061; 1;<br \/>\n    TypeMap(&#039;SMALLINT&#039;)                              :&#061; 2;<br \/>\n    TypeMap(&#039;INT&#039;)                                   :&#061; 4;<br \/>\n    TypeMap(&#039;BIGINT&#039;)                                :&#061; 8;<br \/>\n    TypeMap(&#039;REAL&#039;)                                  :&#061; 4;<br \/>\n    TypeMap(&#039;FLOAT&#039;)                                 :&#061; 8;<br \/>\n    TypeMap(&#039;DOUBLE&#039;)                                :&#061; 8;<br \/>\n    TypeMap(&#039;DOUBLE PRECISION&#039;)                      :&#061; 8;<br \/>\n    TypeMap(&#039;DEC&#039;)                                   :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;DECIMAL&#039;)                               :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;NUMERIC&#039;)                               :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;NUMBER&#039;)                                :&#061; ComputeFlag;   \/*1~22 \u4e2a\u5b57\u8282 &#xff0c;\u53d6\u4e2a\u4e2d\u95f4\u503c*\/<br \/>\n    TypeMap(&#039;BINARY&#039;)                                :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;VARBINARY&#039;)                             :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;DATE&#039;)                                  :&#061; 3;<br \/>\n    TypeMap(&#039;TIME&#039;)                                  :&#061; 5;<br \/>\n    TypeMap(&#039;TIMESTAMP&#039;)                             :&#061; 8;<br \/>\n    TypeMap(&#039;DATETIME&#039;)                              :&#061; 8;<br \/>\n    TypeMap(&#039;TIME WITH TIME ZONE&#039;)                   :&#061; 7;<br \/>\n    TypeMap(&#039;TIMESTAMP WITH TIME ZONE&#039;)              :&#061; 10;<br \/>\n    TypeMap(&#039;DATETIME WITH TIME ZONE&#039;)               :&#061; 10;   \/*\u53c2\u8003\u7c7b\u578b TIMESTAMP WITH TIME ZONE*\/<br \/>\n    TypeMap(&#039;INTERVAL YEAR&#039;)                         :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL MONTH&#039;)                        :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL YEAR TO MONTH&#039;)                :&#061; 12;<br \/>\n    TypeMap(&#039;INTERVAL DAY&#039;)                          :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR&#039;)                         :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL MINUTE&#039;)                       :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL SECOND&#039;)                       :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO HOUR&#039;)                  :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO MINUTE&#039;)                :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL DAY TO SECOND&#039;)                :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR TO MINUTE&#039;)               :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL HOUR TO SECOND&#039;)               :&#061; 24;<br \/>\n    TypeMap(&#039;INTERVAL MINUTE TO SECOND&#039;)             :&#061; 24;<br \/>\n    TypeMap(&#039;BLOB&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;IMAGE&#039;)                                 :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;LONGVARBINARY&#039;)                         :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;CLOB&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;TEXT&#039;)                                  :&#061; ComputeFlag;<br \/>\n    TypeMap(&#039;LONGVARCHAR&#039;)                           :&#061; ComputeFlag;<\/p>\n<p>    \/*\u83b7\u53d6\u4e00\u5217\u7684\u5b57\u8282\u6570&#xff0c;\u4e0d\u5305\u542b\u9700\u8ba1\u7b97\u5217\u3002*\/<br \/>\n    FOR I IN (SELECT COLUMN_ID,COLUMN_NAME,DATA_TYPE,DATA_LENGTH FROM DBA_TAB_COLUMNS WHERE OWNER &#061; UserName AND TABLE_NAME &#061; TabName ORDER BY COLUMN_ID) LOOP<\/p>\n<p>        \/*\u5224\u65ad\u5217\u7c7b\u578b\u662f\u5426\u5b58\u5728\u3002*\/<br \/>\n        IF !(TypeMap.EXISTS(I.DATA_TYPE)) THEN<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;ColId               : &#039;||I.COLUMN_ID);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Col                 : &#039;||I.COLUMN_NAME);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Unknown Type        : &#039;||I.DATA_TYPE);<br \/>\n            DBMS_OUTPUT.PUT_LINE(&#039;Len                 : &#039;||I.DATA_LENGTH);<br \/>\n            RETURN;<br \/>\n        END IF;<\/p>\n<p>        ColSize &#061; TypeMap(I.DATA_TYPE);<\/p>\n<p>        \/*\u6839\u636e\u4e0d\u540c\u7c7b\u578b\u8fdb\u884c\u4e0d\u540c\u7684\u5904\u7406\u3002*\/<br \/>\n        IF ColSize &#061; PartComputeFlag THEN<br \/>\n        ColSize :&#061; I.DATA_LENGTH;<br \/>\n        ELSIF ColSize &#061; ComputeFlag THEN<br \/>\n        ColSize :&#061; 0;<br \/>\n            ColSets(ColSetsIdx) :&#061; I.COLUMN_NAME;<br \/>\n            ColSetsIdx :&#061; ColSetsIdx &#043; 1;<br \/>\n        ELSE<br \/>\n            ColSize :&#061; TypeMap(I.DATA_TYPE);<br \/>\n        END IF;<\/p>\n<p>        OneRowSize :&#061; OneRowSize &#043; ColSize;<\/p>\n<p>        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColId               : &#039;||I.COLUMN_ID);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Col                 : &#039;||I.COLUMN_NAME);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Type                : &#039;||I.DATA_TYPE);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;Len                 : &#039;||I.DATA_LENGTH);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColSize             : &#039;||ColSize);<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#039;);<br \/>\n    END LOOP;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;OneRowSize(Bytes)   : &#039;||OneRowSize);<\/p>\n<p>    \/*OneRowSize \u4e0d\u53ef\u80fd\u4e3a0&#xff0c;\u8bf4\u660e\u6a21\u5f0f\u6216\u8868\u4e0d\u5b58\u5728\u3002*\/<br \/>\n    IF OneRowSize &#061; 0 THEN<br \/>\n    DBMS_OUTPUT.PUT_LINE(&#039;The user or table does not exist.&#039;);<br \/>\n        RETURN;<br \/>\n    END IF;<\/p>\n<p>    \/*\u8ba1\u7b97\u8868\u7684\u603b\u6761\u6570\u3002*\/<br \/>\n    EXECUTE IMMEDIATE CntSql INTO Cnt;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;Cnt                 : &#039;||Cnt);<br \/>\n    &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ColSetsIdx          : &#039;||ColSetsIdx);<\/p>\n<p>    \/*\u5224\u65ad\u662f\u5426\u9700\u8981\u8fdb\u884c\u5b9e\u9645\u8ba1\u7b97\u3002*\/<br \/>\n    IF (ColSetsIdx &gt; 0) AND (Cnt &gt; 0) THEN<\/p>\n<p>        ColSetsIdx :&#061; ColSetsIdx &#8211; 1;<\/p>\n<p>    FOR Y IN 0..ColSetsIdx LOOP<br \/>\n    ComputeSql :&#061; ComputeSql||&#039;NVL(LENGTHB(&#039;||ColSets(Y)||&#039;),0)&#039;;<br \/>\n            IF Y !&#061; ColSetsIdx THEN<br \/>\n            ComputeSql :&#061; ComputeSql||&#039; &#043; &#039;;<br \/>\n            END IF;<br \/>\n        END LOOP;<\/p>\n<p>        ComputeSql :&#061; ComputeSql||&#039; ) AS TOTAL_SIZE FROM &#039;||UserName||&#039;.&#039;||TabName;<br \/>\n        &#8212; DBMS_OUTPUT.PUT_LINE(&#039;ComputeSql          : &#039;||ComputeSql);<\/p>\n<p>        EXECUTE IMMEDIATE ComputeSql INTO ComputeSize;<br \/>\n    END IF;<\/p>\n<p>    DBMS_OUTPUT.PUT_LINE(&#039;ComputeSize(Bytes)  : &#039;||ComputeSize);<\/p>\n<p>    \/*\u6240\u6709\u7ed3\u679c\u6c47\u603b\u3002*\/<br \/>\n    TotalSize :&#061; OneRowSize * 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