{"id":33383,"date":"2023-06-06T20:50:29","date_gmt":"2023-06-06T12:50:29","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=33383"},"modified":"2023-07-31T02:05:06","modified_gmt":"2023-07-30T18:05:06","slug":"oracle%e6%80%8e%e4%b9%88%e4%bf%ae%e6%94%b9%e6%9f%90%e4%b8%aa%e5%ad%97%e6%ae%b5%e7%89%b9%e5%ae%9a%e4%bd%8d%e7%bd%ae%e7%9a%84%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/33383.html","title":{"rendered":"Oracle\u600e\u4e48\u4fee\u6539\u67d0\u4e2a\u5b57\u6bb5\u7279\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26"},"content":{"rendered":"
\n

Oracle\u4fee\u6539\u67d0\u4e2a\u5b57\u6bb5\u7279\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26\u7684\u65b9\u6cd5\uff1a1\u3001\u67e5\u627e\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55\uff1b2\u3001\u4f7f\u7528 SUBSTR \u51fd\u6570\u622a\u53d6\u9700\u8981\u4fee\u6539\u7684\u5b57\u7b26\uff1b3\u3001\u5c06\u65b0\u7684\u5b57\u7b26\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002\u67e5\u627e\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55\u662f\u6307\u5728\u6570\u636e\u5e93\u4e2d\u5b9a\u4f4d\u9700\u8981\u8fdb\u884c\u4fee\u6539\u7684\u6570\u636e\u884c\u3002<\/p>\n<\/blockquote>\n

\n
\"\"<\/figure>\n<\/div>\n

\u4e00\u3001Oracle\u4fee\u6539\u67d0\u4e2a\u5b57\u6bb5\u7279\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26\u7684\u65b9\u6cd5<\/h2>\n

1\u3001\u67e5\u627e\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55<\/h3>\n

\u201c\u67e5\u627e\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55\u662f\u6307\u5728\u6570\u636e\u5e93\u4e2d\u5b9a\u4f4d\u9700\u8981\u8fdb\u884c\u4fee\u6539\u7684\u6570\u636e\u884c\u3002\u5728\u8fdb\u884c\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u524d\uff0c\u9700\u8981\u5148\u67e5\u8be2\u5230\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55\uff0c\u7136\u540e\u624d\u80fd\u5bf9\u8fd9\u4e9b\u8bb0\u5f55\u8fdb\u884c\u4fee\u6539\u64cd\u4f5c\u3002<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

SELECT column_nameFROM table_nameWHERE condition;<\/code><\/pre>\n
2\u3001\u4f7f\u7528 SUBSTR \u51fd\u6570\u622a\u53d6\u9700\u8981\u4fee\u6539\u7684\u5b57\u7b26<\/h3>\n
SUBSTR \u51fd\u6570\u7684\u8bed\u6cd5\u4e3a\uff1a<\/p>\n
SUBSTR(string, start_position, [ length ])<\/code><\/pre>\n
\u5176\u4e2d\uff0c\u53c2\u6570\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n
    \n
  • string\uff1a<\/strong>\u8981\u622a\u53d6\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n
  • start_position\uff1a<\/strong>\u8d77\u59cb\u4f4d\u7f6e\uff0c\u5373\u9700\u8981\u4fee\u6539\u7684\u5b57\u7b26\u7684\u4f4d\u7f6e\u3002<\/li>\n
  • length\uff1a<\/strong>\u622a\u53d6\u5b57\u7b26\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n
    3\u3001\u5c06\u65b0\u7684\u5b57\u7b26\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d<\/h3>\n
    \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
    UPDATE table_name SET column_name = REPLACE(SUBSTR(column_name, start_position, length), old_char, new_char)WHERE condition;<\/code><\/pre>\n
    \u5176\u4e2d\uff0cREPLACE \u51fd\u6570\u7528\u4e8e\u66ff\u6362\u65b0\u65e7\u5b57\u7b26\uff0cstart_position \u4e3a\u9700\u8981\u4fee\u6539\u7684\u5b57\u7b26\u7684\u4f4d\u7f6e\uff0clength \u4e3a\u9700\u8981\u4fee\u6539\u7684\u5b57\u7b26\u7684\u957f\u5ea6\u3002\u5c06\u4e0a\u8ff0\u4ee3\u7801\u4e2d\u7684 table_name\u3001column_name\u3001start_position\u3001length\u3001old_char\u3001new_char \u548c condition \u66ff\u6362\u6210\u5b9e\u9645\u7684\u8868\u540d\u3001\u5b57\u6bb5\u540d\u3001\u4f4d\u7f6e\u3001\u957f\u5ea6\u3001\u65e7\u5b57\u7b26\u3001\u65b0\u5b57\u7b26\u548c\u6761\u4ef6\u5373\u53ef\u3002<\/p>\n
    \u4e8c\u3001Oracle\u6570\u636e\u5e93\u7b80\u4ecb<\/h2>\n
    1\u3001\u4ecb\u7ecd<\/h3>\n
    Oracle\u6570\u636e\u5e93\u7cfb\u7edf\u662f\u7f8e\u56fdOracle\uff08\u7532\u9aa8\u6587\uff09\u516c\u53f8\u63d0\u4f9b\u7684\u4ee5\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u4e3a\u6838\u5fc3\u7684\u4e00\u7ec4\u8f6f\u4ef6\u4ea7\u54c1\uff0c\u662f\u76ee\u524d\u6700\u6d41\u884c\u7684\u5ba2\u6237\/\u670d\u52a1\u5668\uff08Client\/Server\uff0cC\/S\uff09\u6216\u6d4f\u89c8\u5668\/\u670d\u52a1\u5668\uff08Browser\/Server\uff0cB\/S\uff09\u4f53\u7cfb\u7ed3\u6784\u7684\u6570\u636e\u5e93\u4e4b\u4e00\u3002<\/p>\n
    Oracle\u6570\u636e\u5e93\u662f\u76ee\u524d\u4e16\u754c\u4e0a\u4f7f\u7528\u8f83\u4e3a\u5e7f\u6cdb\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u901a\u7528\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5b83\u5177\u6709\u5b8c\u6574\u7684\u6570\u636e\u7ba1\u7406\u529f\u80fd\uff1b\u4f5c\u4e3a\u4e00\u4e2a\u5173\u7cfb\u6570\u636e\u5e93\uff0c\u5b83\u662f\u4e00\u4e2a\u5b8c\u5907\u5173\u7cfb\u7684\u4ea7\u54c1\uff1b\u4f5c\u4e3a\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u5b83\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u5904\u7406\u529f\u80fd\u3002<\/p>\n
    \u622a\u6b62\u81f32015\u5e7406\u6708\uff0cOracle\u6570\u636e\u5e93\u6700\u65b0\u7248\u672c\u4e3aOracle Database 12c\u3002<\/p>\n
    2\u3001\u7279\u70b9<\/h3>\n
    \u5b8c\u6574\u7684\u6570\u636e\u7ba1\u7406\u529f\u80fd\uff1a<\/strong><\/p>\n
      \n
    • \u6570\u636e\u7684\u5927\u91cf\u6027<\/li>\n
    • \u6570\u636e\u7684\u4fdd\u5b58\u7684\u6301\u4e45\u6027<\/li>\n
    • \u6570\u636e\u7684\u5171\u4eab\u6027<\/li>\n
    • \u6570\u636e\u7684\u53ef\u9760\u6027<\/li>\n<\/ul>\n
      \u5b8c\u5907\u5173\u7cfb\u7684\u4ea7\u54c1\uff1a<\/strong><\/p>\n
        \n
      • \u4fe1\u606f\u51c6\u5219\u2014\u5173\u7cfb\u578bDBMS\u7684\u6240\u6709\u4fe1\u606f\u90fd\u5e94\u5728\u903b\u8f91\u4e0a\u7528\u4e00\u79cd\u65b9\u6cd5\uff0c\u5373\u8868\u4e2d\u7684\u503c\u663e\u5f0f\u5730\u8868\u793a<\/li>\n
      • \u4fdd\u8bc1\u8bbf\u95ee\u7684\u51c6\u5219<\/li>\n
      • \u89c6\u56fe\u66f4\u65b0\u51c6\u5219\u2014\u53ea\u8981\u5f62\u6210\u89c6\u56fe\u7684\u8868\u4e2d\u7684\u6570\u636e\u53d8\u5316\u4e86\uff0c\u76f8\u5e94\u7684\u89c6\u56fe\u4e2d\u7684\u6570\u636e\u540c\u65f6\u53d8\u5316<\/li>\n
      • \u6570\u636e\u7269\u7406\u6027\u548c\u903b\u8f91\u6027\u72ec\u7acb\u51c6\u5219<\/li>\n<\/ul>\n
        \u5206\u5e03\u5f0f\u5904\u7406\u529f\u80fd\uff1a<\/strong>Oracle\u6570\u636e\u5e93\u81ea\u7b2c5\u7248\u8d77\u5c31\u63d0\u4f9b\u4e86\u5206\u5e03\u5f0f\u5904\u7406\u80fd\u529b\uff0c\u5230\u7b2c7\u7248\u5c31\u6709\u6bd4\u8f83\u5b8c\u5584\u7684\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u529f\u80fd\u4e86\uff0c\u4e00\u4e2aOracle\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u7531Oracler DBMS\u3001sqlNet\u3001SQL<\/em>CONNECT\u548c\u5176\u4ed6\u975eOracle\u7684\u5173\u7cfb\u578b\u4ea7\u54c1\u6784\u6210\u3002<\/p>\n
        3\u3001\u4f53\u7cfb\u67b6\u6784<\/h3>\n
        Oracle\u4f53\u7cfb\u7ed3\u6784\u5305\u62ec\u5f88\u591a\u57fa\u672c\u7ec4\u4ef6\uff0c\u4e0b\u9762\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e0b\u51e0\u4e2a\u5e38\u89c1\u7ec4\u4ef6\u3002<\/p>\n
          \n
        • Oracle Server\uff08\u670d\u52a1\u5668\uff09\uff1a<\/strong>Oracle\u670d\u52a1\u5668\u662f\u6700\u5927\u7684\u6982\u5ff5\uff0c\u5305\u542b\u591a\u79cd\u6587\u4ef6\u7ed3\u6784\u3001\u8fdb\u7a0b\u7ed3\u6784\u548c\u5185\u5b58\u7ed3\u6784\uff1b\u4f46\u662f\uff0c\u5904\u7406SQL\u8bed\u53e5\u65f6\uff0c\u5e76\u975e\u6240\u6709\u8fd9\u4e9b\u7ed3\u6784\u90fd\u4f1a\u7528\u5230\u3002\u67d0\u4e9b\u7ed3\u6784\u7528\u4e8e\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u6027\u80fd\uff0c\u786e\u4fdd\u8be5\u6570\u636e\u5e93\u5728\u9047\u5230\u8f6f\u4ef6\u6216\u786c\u4ef6\u9519\u8bef\u65f6\u53ef\u4ee5\u6062\u590d\uff0c\u6216\u8005\u6267\u884c\u7ef4\u62a4\u8be5\u6570\u636e\u5e93\u6240\u9700\u7684\u5176\u5b83\u4efb\u52a1\u3002Oracle\u670d\u52a1\u5668\u5305\u542b\u4e24\u90e8\u5206\uff1aOracle Instance\uff08\u5b9e\u4f8b\uff09\u548cOracle Database\uff08\u6570\u636e\u5e93\uff09\u3002<\/li>\n
        • Oracle Instance\uff08\u5b9e\u4f8b\uff09\uff1a<\/strong>Oracle Instance\uff08\u5b9e\u4f8b\uff09\u7684\u5b9a\u4e49\uff1a\u8bbf\u95eeOracle Database\u7684\u4e00\u4e2a\u624b\u6bb5\uff1b\u4e00\u4e2ainstance\u5bf9\u5e94\u4e00\u4e2a\u4e14\u4e5f\u53ea\u80fd\u5bf9\u5e94\u4e00\u4e2adatabase\uff0c\u800c\u4e00\u4e2adatabase\u53ef\u4ee5\u6709\u591a\u4e2ainstance\u6765\u8bbf\u95ee\u5b83\uff0c\u4e5f\u5c31\u662f\u8bf4instance\u548cdatabase\u7684\u591a\u5bf9\u4e00\u7684\u5173\u7cfb\uff0c\u5728\u5178\u578b\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u53f0\u673a\u5668\u4e0a\u88c5\u7684oracle\uff0c\u4ed6\u4eec\u4fe9\u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\uff0c\u5bf9\u5e94\u96c6\u7fa4\u65b9\u5f0f\uff08\u7b80\u79f0RAK\uff09\u662f\u591a\u5bf9\u4e00\uff1binstance\u4e5f\u662f\u7531\u4e24\u4e2a\u90e8\u5206\u7ec4\u6210\uff1a\u5185\u5b58\uff08memory\uff09\u548c\u540e\u53f0\u8fdb\u7a0b\uff08background process\uff09\u3002<\/li>\n
        • Oracle Database\uff08\u6570\u636e\u5e93\uff09\uff1a<\/strong>\u4ece\u7269\u7406\u7ed3\u6784\u5206\u6790\uff0cOracle Database\u4e3b\u8981\u5305\u62ec\u4e09\u79cd\u6587\u4ef6\u7c7b\u578b\uff1aData files\uff08\u6570\u636e\u6587\u4ef6\uff09\u3001Control files\uff08\u63a7\u5236\u6587\u4ef6\uff09\u548cRedo Log files\uff08\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\uff09\uff0c\u5b83\u4eec\u662foracle\u7684\u6838\u5fc3\u6587\u4ef6\uff0c\u9664\u6b64\u4e4b\u5916\u8fd8\u6709Parameter file\uff08\u53c2\u6570\u6587\u4ef6\uff09\u3001Archived Log files\uff08\u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\uff09\u4ee5\u53caPassword file\uff08\u53e3\u4ee4\u6587\u4ef6\uff09\u7b49\u3002<\/li>\n<\/ul>\n
          4\u3001\u903b\u8f91\u7ed3\u6784<\/h3>\n
          Oracle\u6570\u636e\u5e93\u5728\u903b\u8f91\u4e0a\u662f\u7531\u8bb8\u591a\u8868\u7a7a\u95f4\u6784\u6210\uff0c\u4e3b\u8981\u5206\u4e3a\u7cfb\u7edf\u8868\u7a7a\u95f4\u548c\u975e\u7cfb\u7edf\u8868\u7a7a\u95f4\u3002\u975e\u7cfb\u7edf\u8868\u7a7a\u95f4\u5185\u5b58\u50a8\u7740\u5404\u9879\u5e94\u7528\u7684\u6570\u636e\u3001\u7d22\u5f15\u3001\u7a0b\u5e8f\u7b49\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n
          \u903b\u8f91\u5b58\u50a8\u7ed3\u6784\u4e3b\u8981\u5305\u62ec\u6570\u636e\u5757\uff08datablocks\uff09\uff0c\u6570\u636e\u533a\uff08extents\uff09\uff0c\u6570\u636e\u6bb5\uff08segments\uff09\uff0c\u8868\u7a7a\u95f4\uff08tablespace\uff09\uff0c\u8fd9\u4e9b\u903b\u8f91\u7ed3\u6784\u4f7fOracle\u53ef\u4ee5\u7cbe\u7ec6\u5730\u63a7\u5236\u78c1\u76d8\u7a7a\u95f4\u7684\u4f7f\u7528\u3002<\/p>\n
          \n
          \"\"<\/figure>\n<\/div>\n
          \u5ef6\u4f38\u9605\u8bfb1\uff1aOracle\u6570\u636e\u5e93\u7b80\u5355\u64cd\u4f5c<\/em><\/strong><\/p>\n
          \u67e5\u770b\u5f53\u524d\u767b\u5f55\u7528\u6237\uff1a<\/p>\n
          show user\uff1b<\/code><\/pre>\n
          \u67e5\u770b\u8868\u7ed3\u6784\uff1a<\/p>\n
          desc dba_users;<\/code><\/pre>\n
          \u542f\u7528\u9501\u5b9a\u7684\u7528\u6237\uff1a<\/p>\n
          alter user username(\u7528\u6237\u540d) account unlock;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Oracle\u4fee\u6539\u67d0\u4e2a\u5b57\u6bb5\u7279\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26\u7684\u65b9\u6cd5\uff1a1\u3001\u67e5\u627e\u9700\u8981\u4fee\u6539\u7684\u8bb0\u5f55\uff1b2\u3001\u4f7f\u7528 SUBSTR \u51fd\u6570\u622a\u53d6\u9700\u8981\u4fee\u6539 […]","protected":false},"author":1,"featured_media":33384,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[119],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/33383"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=33383"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/33383\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/33384"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=33383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=33383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=33383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}