{"id":1874,"date":"2016-03-18T16:23:55","date_gmt":"2016-03-18T08:23:55","guid":{"rendered":"http:\/\/www.821121.com\/?p=1874"},"modified":"2023-04-13T16:30:49","modified_gmt":"2023-04-13T08:30:49","slug":"%e6%88%91%e5%af%b9oracle%e7%9a%84%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=1874","title":{"rendered":"\u6211\u5bf9Oracle\u7684\u5b66\u4e60"},"content":{"rendered":"

Oracle\u7b80\u4ecb\uff1a<\/h2>\n

Oracle\u662f\u7531\u7532\u9aa8\u6587\u516c\u53f8\u5f00\u53d1\u51fa\u6765\u7684\uff0c\u5e76\u4e8e1989\u5e74\u6b63\u5f0f\u8fdb\u5165\u4e2d\u56fd\u5e02\u573a\uff0c\u6210\u4e3a\u7b2c\u4e00\u5bb6\u8fdb\u5165\u4e2d\u56fd\u7684\u4e16\u754c\u8f6f\u4ef6\u5de8\u5934\u3002\u5f53\u7136\uff0c\u5f53\u65f6\u7684Oracle\u5c1a\u540d\u4e0d\u89c1\u7ecf\u4f20\uff0c\u7531Oracle\u5f00\u53d1\u7684\u5546\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6280\u672f\u5373\u5e74\u5f00\u59cb\u670d\u52a1\u4e8e\u4e2d\u56fd\u7528\u6237\u30021991\u5e747\u6708\uff0cOracle\u5728\u5317\u4eac\u5efa\u7acb\u72ec\u8d44\u516c\u53f8\u3002Oracle\u6570\u636e\u5e93\uff0c\u662f\u79ef\u805a\u4e86\u4f17\u591a\u9886\u5148\u6027\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5728\u96c6\u7fa4\u6280\u672f\u3001\u9ad8\u53ef\u7528\u6027\u3001\u5546\u4e1a\u667a\u80fd\u3001\u5b89\u5168\u6027\u3001\u7cfb\u7edf\u7ba1\u7406\u7b49\u65b9\u9762\u90fd\u9886\u8dd1\u4e1a\u754c\u3002
\n\u4e0eOracle\u6570\u636e\u5e93\u57fa\u672c\u540c\u65f6\u671f\u7684\u8fd8\u6709informix\u6570\u636e\u5e93\u7cfb\u7edf\u3002\u4e24\u8005\u4f7f\u7528\u7684\u7528\u6237\u6709\u6240\u4fa7\u91cd\u3002Oracle\u6570\u636e\u5e93\u7cfb\u7edf\u94f6\u884c\u4e1a\u4f7f\u7528\u8f83\u591a\uff0cinformix\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u901a\u8baf\u4e1a\u4f7f\u7528\u8f83\u591a\u3002
\n\u7531\u4e8eORACLE\u6570\u636e\u5e93\u4ea7\u54c1\u662f\u5f53\u524d\u6570\u636e\u5e93\u6280\u672f\u7684\u5178\u578b\u4ee3\u8868\uff0c\u4ed6\u7684\u4ea7\u54c1\u9664\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u5916\uff0c\u8fd8\u6709\u5e94\u7528\u7cfb\u7edf\u3001\u5f00\u53d1\u5de5\u5177\u7b49\u3002\u521a\u63a5\u89e6Oracle\u7684\u4eba\u5458\u90fd\u6709\u8fd9\u6837\u7684\u611f\u89c9\uff1aOracle\u7684\u4ea7\u54c1\u592a\u591a\uff0c\u6bcf\u4e2a\u4ea7\u54c1\u5185\u5bb9\u7cbe\u6df1\uff0c\u4e0d\u77e5\u9053\u4ece\u54ea\u513f\u5f00\u59cb\u5b66\u624d\u597d\u3002
\n\u4e3a\u4e86\u7528\u5c11\u91cf\u65f6\u95f4\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528Oracle\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u6709\u5fc5\u8981\u5bf9Oracle\u7684\u4e00\u4e9b\u57fa\u672c\u672f\u8bed\u53ca\u6982\u5ff5\u8fdb\u884c\u4e86\u89e3,\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e9b\u7ecf\u5e38\u7528\u5230\u7684\u6982\u5ff5\uff0c\u5e2e\u52a9\u5feb\u901f\u4e86\u89e3Oracle\u6570\u636e\u5e93\u7cfb\u7edf\u63d0\u4f9b\u65b9\u4fbf\u3002<\/p>\n

Oracle \u670d\u52a1\u5668\u7ed3\u6784<\/h2>\n

Oracle \u670d\u52a1\u5668\u662f\u4e00\u4e2a\u5177\u6709\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u9760\u6027\u9762\u5411\u5bf9\u8c61\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4e5f\u662f\u4e00\u4e2a\u9ad8\u6548\u7684 SQL \u8bed\u53e5\u6267\u884c\u73af\u5883\u3002
\nOracle \u670d\u52a1\u5668\u5177\u5907\u4ee5\u4e0b\u7684\u7279\u70b9\uff1a<\/p>\n

    \n
  1. \u80fd\u591f\u53ef\u9760\u7684\u8fdb\u884c\u591a\u7528\u6237\u73af\u5883\u4e0b\u5927\u91cf\u6570\u636e\u7684\u5904\u7406\uff0c\u5141\u8bb8\u591a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\u76f8\u540c\u7684\u6570\u636e\u3002<\/li>\n
  2. \u4fdd\u8bc1\u6570\u636e\u8bbf\u95ee\u7684\u9ad8\u6027\u80fd<\/li>\n
  3. \u6709\u6548\u9632\u6b62\u5bf9\u6570\u636e\u7684\u975e\u6cd5\u8bbf\u95ee<\/li>\n
  4. \u5bf9\u4e8e\u6545\u969c\u6062\u590d\u63d0\u4f9b\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/li>\n<\/ol>\n

    Oracle \u670d\u52a1\u5668\u7684\u603b\u4f53\u7ed3\u6784<\/h2>\n

    Oracle\u670d\u52a1\u5668\u540c\u8fd0\u884c\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e0b\u7684\u5f88\u591a\u7a0b\u5e8f\u4e00\u6837\uff0c\u901a\u8fc7\u5728\u540e\u53f0\u8fd0\u884c\u4e00\u7ec4\u53ef\u6267\u884c\u7a0b\u5e8f\u3001\u5728\u5185\u5b58\u4e2d\u5f00\u8f9f\u8fd0\u884c\u7684\u5b58\u50a8\u533a\u57df\u5e76\u5728\u78c1\u76d8\u4e0a\u5b58\u50a8\u6570\u636e\u6765\u8fdb\u884c\u8fd0\u4f5c\u3002
    \n\u5728\u7ed3\u6784\u4e0a\uff0cOracle\u670d\u52a1\u5668\uff08Oracle Server\uff09\u7531\u5b9e\u4f8b\uff08Instance\uff09\u548c\u6570\u636e\u5e93\uff08Database\uff09\u91cf\u5927\u90e8\u5206\u6784\u6210\u3002\u5b9e\u4f8b\u662f\u4e00\u7ec4\u5185\u5b58\u7ed3\u6784\u548cOracle\u540e\u53f0\u8fdb\u7a0b\u7684\u96c6\u5408\uff1a\u6570\u636e\u5e93\u5728\u7269\u7406\u4e0a\u6709\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u6587\u4ef6\u7ec4\u6210\uff0c\u5176\u4e2d\u4e3b\u8981\u5305\u62ec\u6570\u636e\u6587\u4ef6\u3001\u63a7\u5236\u6587\u4ef6\u3001\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\u3002
    \nOracle\u670d\u52a1\u5668 = \u5b9e\u4f8b + \u6570\u636e\u5e93<\/p>\n

    Oracle\u5b9e\u4f8b<\/h2>\n

    Oracle\u5b9e\u4f8b\u6709\u5185\u5b58\u7ed3\u6784\uff08SGA\uff09\u548cOracle\u540e\u53f0\u8fdb\u7a0b\u7ec4\u6210\u7684\u3002
    \n\u5f53\u7528\u6237\u542f\u52a8\uff08start\uff09\u5b9e\u4f8b\u65f6\uff0cOracle\u5c06\u81ea\u52a8\u4e3aSGA\u5206\u914d\u5185\u5b58\u5e76\u542f\u52a8\u540e\u53f0\u8fdb\u7a0b\uff0c\u5b9e\u4f8b\u8fd0\u884c\u540e\uff0c\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u5b9e\u4f8b\uff0c\u6709\u5b9e\u4f8b\u6765\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u5b9e\u4f8b\u76f8\u5f53\u4e8e\u7528\u6237\u548c\u6570\u636e\u5e93\u7684\u4e2d\u95f4\u5c42\u3002
    \n\u5f53\u7528\u6237\u5173\u95ed\uff08shut down\uff09\u5b9e\u4f8b\u65f6\uff0c\u7531\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\u56de\u6536\u5185\u5b58\u3002\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u6709\u81ea\u5df1\u7684SGA\uff0c\u5e76\u4e14\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u540c\u65f6\u53ea\u80fd\u8bbf\u95ee\u4e00\u4e2a\u6570\u636e\u5e93\u3002
    \nOracle\u6570\u636e\u5e93\u5b9e\u4f8b\uff08Instance\uff09= \u5185\u5b58\u7ed3\u6784\uff08SGA\uff09+ \u540e\u53f0\u8fdb\u7a0b\uff08Background Process\uff09
    \n\u5185\u5b58\u7ed3\u6784\u63cf\u8ff0\u7684\u662fOracle\u6570\u636e\u5e93\u5bf9\u5185\u5b58\u7684\u4f7f\u7528\u6784\u6210\u3002Oracle\u5185\u5b58\u7ed3\u6784\u88ab\u603b\u79f0\u4e3aSGA\uff08System Global Area\uff09\uff0c\u4e3b\u8981\u5305\u62ec\u6570\u636e\u9ad8\u901f\u7f13\u51b2\u533a\uff08Database Buffer Cache\uff09\u3001\u91cd\u505a\u65e5\u671f\u7f13\u51b2\u533a\uff08Redo Log Buffer\uff09\u548c\u5171\u4eab\u6c60\uff08Shared Pool\uff09\u4e09\u90e8\u5206\u3002
    \nOracle\u540e\u53f0\u8fdb\u7a0b\u4e3b\u8981\u6709 DBWn\u3001CKPT\u3001LGWR\u3001SMON\u3001PMON\u3001ARCn\u548cRECO<\/p>\n

    Oracle\u6570\u636e\u5e93<\/h2>\n

    Oracle\u6570\u636e\u5e93\u5305\u542b\u4e86\u7528\u4e8e\u5b58\u653e\u6570\u636e\u7684\u6570\u636e\u5e93\u6587\u4ef6\uff08DataFiles\uff09\uff0c\u7528\u4e8e\u4fdd\u62a4\u6570\u636e\u4e0d\u4e22\u5931\u7684\u8054\u673a\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\uff08Online Redolog Files\uff09\u548c\u7528\u4e8e\u8fde\u63a5Oracle\u5b9e\u4f8b\u548c\u6570\u636e\u5e93\u6240\u9700\u7684\u63a7\u5236\u6587\u4ef6\uff08Control Files\uff09\u3002
    \nOracle\u6570\u636e\u5e93 = \u6570\u636e\u6587\u4ef6 + \u63a7\u5236\u6587\u4ef6 + \u8054\u673a\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6
    \n\u9664\u4e86\u4ee5\u4e0a\u4e09\u79cd\u6587\u4ef6\u4e4b\u5916\uff0cOracle\u8fd8\u5305\u542b\u4e86\u53c2\u6570\u6587\u4ef6\uff08Parameter File\uff09\u3001\u53e3\u4ee4\u6587\u4ef6\uff08Password File\uff09\u3001\u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\uff08Archived Log Files\uff09\u3001\u4ee5\u53ca\u8ddf\u8e2a\u6587\u4ef6\uff08Trace File\uff09\u548c\u8b66\u544a\u6587\u4ef6\uff08Alert Log File\uff09\u7b49\u975e\u6570\u636e\u5e93\u6587\u4ef6\u3002<\/p>\n

      \n
    1. \u63a7\u5236\u6587\u4ef6\uff1a\u8bb0\u5f55\u4e86\u6570\u636e\u5e93\u7684\u5404\u9879\u4fe1\u606f\uff0c\u662f\u8fde\u63a5Oracle\u5b9e\u4f8b\u548cOracle\u6570\u636e\u5e93\u7684\u6865\u6881\u3002\u6bcf\u4e2aOracle\u6570\u636e\u5e93\u5305\u542b\u4e861-8\u4e2a\u63a7\u5236\u6587\u4ef6\u3002<\/li>\n
    2. \u8054\u673a\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\uff1a\u8bb0\u5f55\u4e86\u7528\u6237\u5bf9\u6570\u636e\u7684\u5404\u9879\u64cd\u4f5c\uff0c\u7528\u4e8e\u4fdd\u62a4\u6570\u636e\u4e0d\u4e22\u5931\u3002\u4ee5\u65e5\u5fd7\u7ec4\u7684\u5f62\u5f0f\u5b58\u5728\u3002\u6bcf\u4e2aOracle\u6570\u636e\u5e93\u81f3\u5c11\u5305\u542b\u4e24\u4e2a\u65e5\u5fd7\u7ec4\u3002<\/li>\n
    3. \u6570\u636e\u6587\u4ef6\uff1a\u7528\u4e8e\u5b58\u653e\u6570\u636e\u3002<\/li>\n
    4. \u53c2\u6570\u6587\u4ef6\uff1a\u8bb0\u5f55\u4e86Oracle\u5b9e\u4f8b\u7684\u5404\u9879\u4fe1\u606f\uff0c\u5206\u4e3a\u52a8\u6001\u3001\u9759\u6001\u521d\u59cb\u5316\u53c2\u6570\u6587\u4ef6\u3002<\/li>\n
    5. \u53e3\u4ee4\u6587\u4ef6\uff1a\u5b58\u653e\u7279\u5b9a\u7528\u6237\u7684\u53e3\u4ee4\u3002<\/li>\n
    6. \u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\uff1a\u76f8\u5f53\u4e8e\u8054\u673a\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\u7684\u5907\u4efd\uff0c\u7528\u4e8e\u4fdd\u62a4\u6570\u636e\u4e0d\u4e22\u5931\u3002<\/li>\n
    7. \u8ffd\u8e2a\u6587\u4ef6\uff1a\u5b58\u653e\u540e\u53f0\u8fdb\u7a0b\u548c\u670d\u52a1\u5668\u8fdb\u7a0b\u7684\u8ddf\u8e2a\u4fe1\u606f\u3002<\/li>\n
    8. \u8b66\u544a\u6587\u4ef6\uff1a\u8b66\u544a\u6587\u4ef6\u6709\u8fde\u7eed\u7684\u6d88\u606f\u548c\u9519\u8bef\u7ec4\u6210\u3002\u53ef\u4ee5\u67e5\u770b\u5230Oracle\u5185\u90e8\u9519\u8bef\u3001\u5757\u635f\u574f\u9519\u8bef\u3001\u53ca\u975e\u9ed8\u8ba4\u7684\u521d\u59cb\u5316\u53c2\u6570\u503c\u7b49\u3002<\/li>\n<\/ol>\n

      Oracle\u5185\u5b58\u7ed3\u6784<\/h2>\n

      oracle\u6570\u636e\u5e93\u542f\u52a8\u8d77\u6765\u4ee5\u540eoracle\u4f1a\u5728\u5185\u5b58\u91cc\u9762\u5212\u51fa\u4e00\u90e8\u5206\u7a7a\u95f4\uff0c\u8fd9\u5757\u7a7a\u95f4\u88aboracle\u6240\u72ec\u4eab\u6240\u4f7f\u7528\u3002\u8fd9\u5757\u5185\u5b58oracle\u7ed9\u5b83\u8d77\u540d\u53ebSGA\u3002\u4e00\u822c\u8bd1\u4e3a\uff1asystem global area \u6216shared global area\u3002
      \n\u5f53\u542f\u52a8Oracle\u6570\u636e\u5e93\u65f6\uff0c\u7cfb\u7edf\u4f1a\u5148\u5728\u5185\u5b58\u5185\u89c4\u5212\u4e00\u4e2a\u56fa\u5b9a\u533a\u57df\uff0c\u7528\u6765\u50a8\u5b58\u7528\u6237\u9700\u8981\u7684\u6570\u636e\uff0c\u4ee5\u53caOracle\u8fd0\u884c\u65f6\u5fc5\u5907\u7684\u7cfb\u7edf\u4fe1\u606f\u3002\u662fOracle Instance\u7684\u57fa\u672c\u7ec4\u6210\u90e8\u5206\uff0c\u5728\u5b9e\u4f8b\u542f\u52a8\u65f6\u5206\u914d\u3002
      \nSGA\u6211\u4eec\u901a\u5e38\u53eb\u7cfb\u7edf\u5168\u5c40\u533a\uff0c\u6216\u5171\u4eab\u5168\u5c40\u533a\u3002\u8fd9\u5757\u5185\u5b58\u6709\u516d\u5927\u5757\u3002\u5bf9\u6211\u4eec\u6765\u8bb2\u6700\u91cd\u8981\u7684\u662f\u4e09\u5757\uff1a\u5171\u4eab\u6c60\u3001\u6570\u636e\u5e93\u7f13\u51b2\u533a\u9ad8\u901f\u7f13\u5b58\u3001\u91cd\u505a\u65e5\u5fd7\u7f13\u51b2\u533a\u3002\u5bf9\u5e94\u7684\u82f1\u6587\u540d\uff1ashared pool\uff0cdatabase buffer cache\uff0credo log buffer\uff0c\u8fd9\u4e09\u5757\u7a7a\u95f4\u662f\u6211\u4eec\u7740\u91cd\u8981\u8ba8\u8bba\u548c\u5173\u5fc3\u7684\uff0c\u800c\u8fd9\u4e09\u5757\u6700\u5bb9\u6613\u51fa\u95ee\u9898\u7684\u662f shared pool\u548cbuffer cache\uff0c\u6240\u4ee5\u6211\u4eec\u66f4\u52a0\u5173\u6ce8\u5171\u4eab\u6c60\u548c\u6570\u636e\u5e93\u7f13\u51b2\u533a\u9ad8\u901f\u7f13\u5b58\u3002
      \noracle\u542f\u52a8\u8d77\u6765\u4ee5\u540e\u6709\u4e24\u5927\u5185\u5b58\u7ed3\u6784\uff0c\u4e00\u5927\u5757\u53ebSGA\uff0c\u4e00\u5927\u5757\u53ebPGA\u3002SGA\u662f\u5171\u4eab\u7684\uff0cPGA\u662f\u7ed9\u8fdb\u7a0b\u4f7f\u7528\u7684\u3002PGA\uff08Program Global Area\u7a0b\u5e8f\u5168\u5c40\u533a\uff09\u662f\u4e00\u5757\u5305\u542b\u4e00\u4e2a\u670d\u52a1\u8fdb\u7a0b\u7684\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u7684\u5185\u5b58\u533a\u57df\u3002sga\u6709\u516d\u5927\u5757\u7ec4\u6210\uff1ashared pool\uff0cjava pool\uff0clarge pool\uff0cbuffer cache\uff0credo log\uff0cstream pool\u3002
      \noracle\u6570\u636e\u5e93\u542f\u52a8\u8d77\u6765\u4ee5\u540e\u8fd8\u4f1a\u542f\u52a8\u4e00\u5806\u8fdb\u7a0b\u3002\u8fd9\u4e9b\u8fdb\u7a0b\u5206\u4e24\u5927\u7c7b\uff0c\u524d\u53f0\u8fdb\u7a0b\u548c\u540e\u53f0\u8fdb\u7a0b\u3002
      \n\u5728\u5b9e\u9645\u751f\u4ea7\u4e2d\uff0c\u524d\u53f0\u8fdb\u7a0b\u7684\u6570\u91cf\u8981\u8fdc\u8fdc\u5927\u4e8e\u540e\u53f0\u8fdb\u7a0b\u7684\u6570\u91cf\u3002\u56e0\u4e3a\u5bf9oracle\u6570\u636e\u5e93\u7684\u6bcf\u4e00\u4e2a\u8fde\u63a5\u90fd\u4f1a\u4ea7\u751f\u4e00\u4e2a\u524d\u53f0\u8fdb\u7a0b\uff0c\u4e00\u822c\u7684\u5bf9\u6570\u636e\u5e93\u6765\u8bb2\u90fd\u6709\u4e0a\u767e\u4e2a\u8fde\u63a5\uff0c\u81f3\u5c11\u524d\u53f0\u8fdb\u7a0b\u4e0a\u767e\u4e2a\uff0c\u540e\u53f0\u8fdb\u7a0b\u5c31\u5341\u51e0\u4e2a\uff0c\u6240\u4ee5\u5c31oracle\u6570\u636e\u5e93\u6765\u8bb2\u524d\u53f0\u8fdb\u7a0b\u7684\u6570\u91cf\u8981\u8fdc\u8fdc\u5927\u4e8e\u540e\u53f0\u8fdb\u7a0b\u7684\u6570\u91cf\u3002
      \n\u5bf9\u4e8eSGA\u6765\u8bb2\uff0c\u6240\u6709\u7684\u5185\u5b58\u7a7a\u95f4\u5bf9\u6240\u6709\u7684\u8fdb\u7a0b\u6765\u8bb2\u662f\u5171\u4eab\u7684\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u8bbf\u95eeSGA\u6240\u6709\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u6240\u4ee5\u8bf4SGA\u662f\u6240\u6709\u8fdb\u7a0b\u5171\u4eab\u7684\u4e00\u4e2a\u5185\u5b58\u7a7a\u95f4\u3002
      \n\u5b9e\u9645\u7684\u5de5\u4f5c\u4e2d\uff0c\u53ef\u80fd\u6709\u4e9b\u8fdb\u7a0b\u4e3b\u8981\u4f7f\u7528buffer cache\uff0c\u6709\u4e9b\u8fdb\u7a0b\u4e3b\u8981\u4f7f\u7528redo log\uff0c\u6709\u4e00\u4e9b\u5355\u4e2a\u5185\u5b58\u6c60\u7684\u5355\u72ec\u5206\u914d\u3002\u4f46\u6211\u4eec\u8ba4\u4e3a\uff0coracle\u6570\u636e\u5e93\u7684\u6240\u6709\u8fdb\u7a0b\u5171\u4eab\u5185\u5b58SGA\u4e2d\u7684\u516d\u5927\u7a7a\u95f4\u3002
      \n\u5bf9\u5355\u4e2a\u8fdb\u7a0b\u6765\u8bb2\uff0c\u5b83\u9664\u4e86\u80fd\u591f\u8bbf\u95ee\u8fd9\u4e00\u5927\u5757SGA\u4ee5\u5916\uff0c\u5355\u4e2a\u8fdb\u7a0b\u5b83\u6709\u81ea\u5df1\u7684\u8fdb\u7a0b\u7a7a\u95f4\uff0c\u4e5f\u662f\u4e00\u5757\u5185\u5b58\u7a7a\u95f4\uff0c\u8fd9\u5757\u7a7a\u95f4\u4ecePGA\u6765\u3002
      \noracle\u65b0\u7684\u7248\u672c\u91cc\u9762\uff0coracle\u6709\u4e00\u4e2a\u5927\u7684PGA\u7a7a\u95f4\uff0coracle\u6bcf\u542f\u4e00\u4e2a\u8fdb\u7a0b\u5c31\u4ece\u8fd9\u4e2a\u5927\u7684PGA\u7a7a\u95f4\u62ff\u51fa\u4e00\u5757\u6765\u7ed9\u8fd9\u4e2a\u8fdb\u7a0b\u3002\u5bf9\u8fd9\u4e2a\u8fdb\u7a0b\u6765\u8bb2\uff0c\u5b83\u4f1a\u628a\u4e00\u4e9b\u516c\u5171\u7684\u4fe1\u606f\u5199\u5230SGA\u91cc\u9762\u53bb\uff0c \u8fd9\u4e2a\u8fdb\u7a0b\u6240\u72ec\u6709\u7684\u79c1\u6709\u7684\u4fe1\u606f\u5199\u5230\u81ea\u5df1\u7684PGA\u91cc\u9762\u53bb\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u8fd9\u6837\u4ecePGA\u5206\u4e00\u5757\u3002<\/p>\n

      Oracle\u6574\u4f53\u7684\u4f53\u7cfb\u7ed3\u6784<\/h2>\n

      oracle\u5b9e\u4f8b\u6709SGA\uff0cSGA\u4e2d\u6709\u516d\u4e2a\u6c60\u5b50\uff0c\u8fd8\u6709\u4e94\u4e2a\u540e\u53f0\u8fdb\u7a0b\u3002
      \noracle\u6709\u4e09\u5927\u6587\u4ef6\uff0c\u63a7\u5236\u6587\u4ef6\u3001\u6570\u636e\u6587\u4ef6\u3001\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\u3002\u8fd8\u6709\u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\u3002
      \noracle\u6709\u516d\u5927\u5185\u5b58\u5757\uff0c\u5171\u4eab\u6c60\u3001streams\u6c60\u3001\u5927\u578b\u6c60\u3001java\u6c60\u3001\u6570\u636e\u5e93\u7f13\u51b2\u533a\u9ad8\u901f\u7f13\u5b58\u3001\u91cd\u505a\u65e5\u5fd7\u7f13\u51b2\u533a\u3002
      \n\u6709\u4e94\u5927\u540e\u53f0\u8fdb\u7a0b\uff0c\u68c0\u67e5\u70b9(CKPT)\u3001\u7cfb\u7edf\u76d1\u89c6\u5668(SMON)\u3001\u8fdb\u7a0b\u76d1\u89c6\u5668(PMON)\u3001\u6570\u636e\u5e93\u5199\u8fdb\u7a0b(DBWn)\u3001\u65e5\u5fd7\u5199\u8fdb\u7a0b(LGWR)\u3002
      \n\u63a7\u5236\u6587\u4ef6\u5b58\u653e\u7684\u4e86\u5f88\u591a\u4fe1\u606f\uff0c\u5148\u7b80\u5355\u7684\u8bb2\u4e24\u7c7b\u4fe1\u606f\uff1a<\/p>\n

        \n
      1. \u6574\u4e2a\u6570\u636e\u5e93\u7684\u7269\u7406\u7ed3\u6784\u4fe1\u606f\uff0c\u5728\u63a7\u5236\u6587\u4ef6\u91cc\u9762\u8bb0\u5f55\u7740\u3002
        \n\u6240\u8c13\u7684\u7269\u7406\u7ed3\u6784\uff0c\u4e3b\u8981\u662f\u6570\u636e\u5e93\u6709\u591a\u5c11\u6570\u636e\u6587\u4ef6\uff0c\u6570\u636e\u6587\u4ef6\u5206\u522b\u653e\u5728\u4ec0\u4e48\u4f4d\u7f6e\u3002oracle\u6570\u636e\u5e93\u6709\u591a\u5c11redolog\u6587\u4ef6\uff0c\u8fd9\u4e9b\u6587\u4ef6\u5206\u522b\u653e\u5728\u4ec0\u4e48\u4f4d\u7f6e\u3002<\/li>\n
      2. \u63a7\u5236\u6587\u4ef6\u4e2d\u8fd8\u8bb0\u5f55\u7740\u6570\u636e\u5e93\u5f53\u524d\u8fd0\u884c\u7684\u4e00\u4e9b\u72b6\u6001\u4fe1\u606f\u3002
        \n\u6bd4\u5982\u8bf4\u54ea\u4e2a\u6570\u636e\u6587\u4ef6\u662f\u5728\u7ebf\u6b63\u5e38\u7684\uff0c\u54ea\u4e9b\u6570\u636e\u6587\u4ef6\u662f\u79bb\u7ebf\u4e0d\u6b63\u5e38\u7684\u3002oracle\u6570\u636e\u5e93\u5f53\u524d\u6b63\u5728\u4f7f\u7528\u7740\u4f17\u591a\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\u7684\u54ea\u4e00\u4e2a\uff0c\u54ea\u4e00\u4e9b\u65e5\u5fd7\u6587\u4ef6\u6709\u4e00\u4e9b\u95ee\u9898\u3002\u6570\u636e\u5e93\u5f53\u524d\u8fd0\u884c\u7684\u4e00\u4e9b\u72b6\u6001\u4fe1\u606f\uff0c\u4e5f\u8bb0\u5f55\u5728\u63a7\u5236\u6587\u4ef6\u4e2d\u3002
        \n\u63a7\u5236\u6587\u4ef6\u6211\u4eec\u76ee\u524d\u4e3b\u8981\u8bb2\u4e24\u7c7b\u4fe1\u606f\uff1a<\/li>\n
      3. \u6570\u636e\u5e93\u7684\u7269\u7406\u7ed3\u6784\u4fe1\u606f\u3002<\/li>\n
      4. \u6570\u636e\u5e93\u7684\u5f53\u524d\u8fd0\u884c\u7684\u4e00\u4e9b\u72b6\u6001\u4fe1\u606f\u3002
        \n\u6570\u636e\u6587\u4ef6\uff1a\u91cc\u9762\u653e\u7684\u662foracle\u5b9e\u7684\u6570\u636e\u5e93\u6587\u4ef6\u6570\u636e\u3002oracle\u6570\u636e\u4e3b\u8981\u653e\u7684\u662f\u8868\uff0c\u8868\u4fe1\u606f\u5c31\u653e\u5728\u6570\u636e\u6587\u4ef6\u91cc\u9762\uff0c\u63a7\u5236\u6587\u4ef6\u4f1a\u5f88\u5c0f\uff0c\u4f46\u662f\u6570\u636e\u6587\u4ef6\u4f1a\u5f88\u5927\u3002\u56e0\u4e3aoracle\u6240\u6709\u7684\u6570\u636e\u5168\u90e8\u653e\u5728\u6570\u636e\u6587\u4ef6\u91cc\u9762\u3002
        \n\u91cd\u505a\u65e5\u5fd7\u6587\u4ef6\uff1a\u65e5\u5fd7\u6587\u4ef6\u91cc\u653e\u7684\u662f\u65e5\u5fd7\u3002\u65e5\u5fd7\u8bb0\u5f55\u7684\u662f\uff0coracle\u5bf9\u6570\u636e\u5e93\u3001\u5bf9\u6570\u636e\u6587\u4ef6\u6240\u505a\u7684\u6240\u6709\u7684\u4fee\u6539\uff0c\u5168\u90e8\u4f1a\u4ee5\u65e5\u5fd7\u7684\u65b9\u5f0f\u8bb0\u5f55\u5728\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002\u5b83\u8bb0\u5f55\u7684\u662f\u6570\u636e\u6587\u4ef6\u7684\u53d8\u5316\u8fc7\u7a0b\u3002
        \n\u8fd9\u662f\u4e09\u5927\u7c7b\u6587\u4ef6\u3002<\/li>\n<\/ol>\n

        oracle\u6570\u636e\u5e93\u63a5\u6536\u5230\u7684\u662fSQL\u8bed\u53e5\uff0c\u5bf9SQL\u8bed\u53e5\u8fdb\u884c\u5904\u7406\u3001\u6267\u884c\uff0c\u6267\u884c\u5b8c\u4ee5\u540e\u4f1a\u83b7\u53d6\u5230\u6570\u636e\uff0c\u518d\u8fd4\u7ed9\u7528\u6237\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

        Oracle\u7b80\u4ecb\uff1a Oracle\u662f\u7531\u7532\u9aa8\u6587\u516c\u53f8\u5f00\u53d1<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1874","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1874"}],"version-history":[{"count":2,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1874\/revisions"}],"predecessor-version":[{"id":1876,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1874\/revisions\/1876"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1874"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}