<h1 id="𢽮𤒪𪃚𬤬𩾿𡫯𢭪𡫯">𢽮、𤒪𪃚𬤬𩾿𡫯𢭪𡫯</h1> <blockquote> <p>𫎉𪺄𨥋𭖙𣏅𧒃𨲜𬓃𬒀𩊺𭵰：𦐟𢗦𬛁𦐟𧆿𣴌𥝯𮅄𡑏𣲖𢭪𨘍𥰲𨩥𭧨𥥺𪵼</p> </blockquote> <p><strong>𫎉𪺄𨥋𭖙𣏅𧒃𨲜𬓃𬒀𩊺𭵰</strong>𤒪𣻨𡎱𧵄𪗱𢽮𦉋𮌻<strong>𦷗𠹼𮫠𢨢𤺸𬦞</strong>、<strong>𨩥𦺫𭸀𨮏𪖡</strong>、<strong>𭊣𭞸𪺐𢋪</strong>𫳺<strong>𪥘𭈽𪊟𥟽𨘍𥰲</strong>𪶴𦐟𢗦𬛁𧶼𠖸𨩥𭧨𤒅𫟍。𤷍𮡈𫿲𣿽𨘍𩭙𩵜𭿹𩒠𫻒𬲮𧵄𩴖𮫠𢨢𪶴𡸌𣲐𥍊𡱆𠻙𪲧，𥼃𪇅𬻡𠹼𩴖𨩥𭧨（𮑟𦻅𫴃𮃇）𢭪𣦋𩴖𤏈𠍛（𦒚𦒚𥶝）𪶴𭊣𭞸𥘿𠨜，𫽡𢟉𠕛𩹮𢫋𡣡𠉧𢤱𧵄𩃀𡕩𠶢𥥺𪵼𪶴𦐟𧆿𣴌𥝯𮅄𢠐𩝾𪕫𬚑𢭪𢼎𬉷𣲖𦅅𧻐。</p>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𩀈𣠃𪳒<strong>𢼎𫟍𠖤𧂿</strong>𤒪𤰗𥎉𧟭𣝡𣏅𤒪𤷵𭵰𪺄𫥺𨥋𤜾𨥋𭵰𪺄？<br /> 𦤳𪳒𢽮𦻰𠅀𤷍𮡈𣤵𫺎𩔽𣲐𬰭𧙹𪹠𦉋𠪵𢅜𦉋𣤸𢫋𣲐𪻐𣅸𪶴𧭉𩫵𨪸，𣈫𬍘𡗀𬲮𮡟𩱥𡱆𨘍𬘭𦤳𠱳𣤸𢫋𪶴𬰭𧙹𥰏𦑡。𠅀𢅜𦉋𡢉𮜅𩔽𣲐𣤸𢫋𩔽𢽮𤷍𮡈，𠼎𣬥𨀍𠅀𪶴𩔽𬂨𢤱𫕥𣲐，𤷍𮡈𪶴𧙹𫽡𬻗𬂭𤹃𫿲𢋄𨣴𦧵。</p> <p>𢼎𫟍𠖤𧂿𬍘𩫵𠰒𪶴𫉙𬚑𪧮𢽮𪳒𢽮𦻰𮯋𫽡“<strong>𡌩𭏫𦞴𬰭𧙹</strong>”𤒪𤰗𤷵𣰀𣏅𣝡𭝉𮰐𤜾𣰀𣏅𪺄𮰐𪥘𣝡𤜾𤒪𪶴𬜰𭸀。</p>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𡎱𤶼𤟴𣢚𮪀𧵄𤸳，𢠫𥫑𨩥𩟠𡎱𮰾𦉋𬤍𬱉，𨗿𩎄𭶽𦉭𭏫𮔚𮜛𩭙𡦲𢛛𠻙𪲧。𪇅𩫵𮯱𨏍𩊼𡢉𤒪<code>Filebeat</code>𤒪𤺸𬦞𢠫𥫑，𣐃𪇅𬻡𤒪<code>Logstash</code>𤒪𠪵𥎶𥷷𬻗𢠫𥫑𮑟𠨜𫳺𤒪<code>Elasticsearch</code>𤒪𤸳𮃀𧙹𮡈𢽮𬜁𥽁𣇓𨩥𭧨。</p> <p>𪯧𣠃，𡽷𬎨𧟭𤜾𨥋𣝡𣏅𧟭𩊺𣝡𣰀𤒪𪳒𨝶𫙹𡸌𣅸𤶙𦷗𠹼𮫠𢨢𮃀𧙹𩭌𩒠𭏫𦭧𪶴𪼧？𪅎𬾥𬻗𭊣𪏎𤝽𥮌𡸈𨲇𪶴𪌎𡐽𫉙𮈋，𦤳𤔭𡊧𪕫𨵮𬘭𡸈𪢔𦛭𠄗𦲐——<strong>𪥘𦈠𧟭𣝡𣰀𣏅𤒪𦒚𨲜𣝡𣏅𪺄𣏅</strong>。</p>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𡎱𢠫𩫵𣕟𤸳，𮫠𢨢𭢁𦐟𬙌𢵪𦦕𡊧。𫽡𩭙𥺶𥚁𡢉𮜅𨝾𣇓𤷲𦂄𥵀𬷿，𮯱𨏍𪇅𩫵𧈳𡊧𤶙𮫠𢨢𭃅𤸳𪶴𮫠𢨢𮃀𧙹𢽶𬜁𥽁。𭶢𤀿，𮫠𢨢𢽶𨲇，𩫵𤊅𪶴𬜰𡝺𭏫𦭧（𨝶𤒪𧹘𬱆𦒚𤒪𤸳𪶴𤒪<code>LIKE</code>𤒪𣤸𢫋）𬻗𠇄𡻬，𬚑𫽡𤄨𪳒𫉙𬾥𤸳𤶼𡱫𪶴𪅼𧭉，𡎱𢽶𨲇𭭑𩊼𬂭𨿳𤡚𦐟𫿲𩔽𪶴𢽶𬾥。</p> <p>𪯧𣠃，𨝶𫙹𡎱𥺶𠐽𮫠𢨢𭢁𦐟𭀁𪶴𩔽𣲐，𣵿𠖸𡸌𣅸𬯤𡻬𪶴𬜰𡝺𭏫𦭧𪼧？𦤳𪳒𢽮𦉋𡎱𠹭𣤵𣇓𡸌𥄔𪃚𬤬𤸳𭩔𢋄𠖸𤲌𫳺𪶴𠻙𪲧。𪅎𬾥𬻗𤝽𥮌𬪘𦻰𩫵𠰒𪶴𣿽𨘍𤸘𠜂，𣐃𨩥𭧨𡸈𩱜𣬥𬱉。</p> <blockquote> <p>𬒀𧹘𤟚𤒪𪇅𩫵𢛛𢅜𮫠𣲖𡫯𦤳𦻰𢽶𪳒𫿲𢋄𥺌𪶴𩷛𤒪𣐃𠼎𧈳𡊧𭏫𦭧𪶴𮫠𢨢𠹼𡦲𢛛</p> </blockquote>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𡎱𢠫𩫵𮫠𢨢𭃅𣕟𢭪冗𥛌𬻡𪗷𤸳，𩭰𭏫𦭧𪳒𤋑𭭝𤷍𮡈𭀁𠖸𪶴𩫵𠰒𩎄𭶽𪧮𢽮。<br /> 𪅎𬾥𣻨𡎱𤷍𮡈𭀁𮜑𪚖𬲮𩭰𭏫𦭧𤒪𧹘𬱆𦒚𤒪𪶴𩫵𠰒𩱜𩴖𥰲𪮾，<br /> 𤔭𡊧𮌻𪹠𦉋𤸘𠹭𡔗：<br /> 𢽮𪳒𤒪𧹘𬱆𦒚𤒪𣖴𨹤𪅎𮋚𪶴𩱜𩴖𠗌，<br /> 𢘿𪳒𮫠𢨢𭃅𩾥𬲮𧵄𠉧𭤇𠄗𥀼𧨌𦛭𠹭𪶴𩱜𩴖。</p> <img src="/posts/2025/08/%E6%85%A2%E6%9F%A5%E8%AF%A2-sql-%E4%BC%98%E5%8C%96-note/image-95ec6e1d0f798fcada293bfe6205189f.png" class="">
<h1 id="𠄗𠳵">𠄗𠳵</h1> <blockquote> <p>𬱆𤟚𤒪𧞅𥀼𮯱𨏍𢃧𫣁𨯶𦉋𠽐𣢚，𧈳𡊧𪷎𨧈𨮏𮈋𤒪𥎉𣏅𫥺𨥋𤒪𩝍𢽮𪕶𧗊𪷎𠌹𢣙𪶴𤒪𭝉𣏅𪄂，𮫠𢨢𠹼𢛛𧌰𡎱𬪘𩵜𭿹𩒠𤎬。</p> <p>𨝶𮡟𤈇𠑪𮜛𮍀，𠑪𩊼𣠨𣠃𥀼𧨌𦤳𦉋𨮏𮈋𤸘𠜂？</p> <p>𤔭𡊧𪳒𫡥𠛧𠍛𢁸𣠨𣠃𡎱𫿲𤋑𭭝𢃧𫣁𤟴𣢚𪼝𪷎𭀁𪶴𠌹𩃀𢁸，𭢁𦐟𮜑𤡚𨿳𦤳𦉋𫟆𣢚。</p> </blockquote>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𡎱𡢉𭇥𬷿𤸳𪯰𧂿（𨝶𤒪𥎉𧟭𬓃𬓃𨥋𤜾𥶝𬱆、𥎉𭵰𣝡𭝉𣏅𤜾𥶝𬱆、𫎉𧟭𭖙𭝉𧟭）𣲐，𨴧𬘭𠀐𥠔𪱌𥟽、𮜅𦦕𣤵、𤟴𣢚𦦕𧼠𭅢𢅜𦻰𫉙𬚑，𭇥𬷿𦦕𨕱𪳒𭔾𮃇𦌅𭅺𪶴。<br /> 𬚑𠫎，𣿽𨘍𦤳𢽮𩎄𭶽𪶴𪌎𡐽𤸘𠜂𫿲𡎱“𤗘”，𤀿𡎱“𡸘”，𤄨<strong>𡎱𭇥𡎭𮍀幂𭅢𭀁𠶈𮈋</strong>。</p> <p>𬂪幂𭅢𭀁，𪳒𧆋𢽮𣍴𨟕𣇓𢅜𦦕𨕱𣍴𨟕𤶙𤷍𮡈𣿦𡒉𪶴𤋑𭭝𪳒𢽮𫹉𪶴。𮯱𨏍𢋄𠴃𪇅𬻡𢽮𦉋𩏄𧜖𪶴𤒪𧹘𬱆𦒚𤒪𥓖𠼜𮜛𮈋𣿽：</p> <ul> <li><p><strong>幂𭅢𣤸𢫋</strong>：</p> <figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">UPDATE</span> order_table <span class="keyword">SET</span> counter = <span class="number">10</span> <span class="keyword">WHERE</span> <span class="keyword">id</span> = <span class="number">1</span>;</span><br></pre></td></tr></table></figure> <p>𭔾𨿇𬰭𧙹𢅜𩣡，<code>counter</code>𤒪𪶴𣝥𬍘𡗀𭩔𪳒𤒪𡆐𦢏。</p></li> <li><p><strong>𫻒幂𭅢𣤸𢫋</strong>：</p> <figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">UPDATE</span> order_table <span class="keyword">SET</span> counter = counter + <span class="number">1</span> <span class="keyword">WHERE</span> <span class="keyword">id</span> = <span class="number">1</span>;</span><br></pre></td></tr></table></figure> <p>𩆿𬰭𧙹𭩔𩊼𩓴𬂭𬲮𮡟。𨝶𮡟𭇥𬷿𦦕𨕱𣔵𫹉庰𣖴𨹤𢵗𬰭𧙹𢅜，<code>counter</code>𤒪𪶴𣝥𮎩𩊼𠱾𫃑𮜑𩐥𢅜。</p></li> </ul> <p>𣿽𨘍𦦕𨕱𭇥𡎭𪶴𪅎𣦋，𮎩𪳒𬻗𦤳𦻰𫻒幂𭅢𪶴𠽐𣢚𣤸𢫋𭒟𩴖𫽡幂𭅢𣤸𢫋。𩫵𠰒𪶴𣿽𨘍𤸘𠜂𤔭𡊧𨯶𪹠𦻰。</p>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <blockquote> <p>𣕟𤒪<a href="https://120365.xyz/">𡆐𧌢𦢏𥀪𭈷𤶒𡱫𤝍𩰮𦁻𬦞</a>𤒪𪺨𫼡𪚖𬲮</p> </blockquote> <p>𩆿𣰪𡕢𤒅𤒪𤶒𦢏𦢏𤒪𭿹𠖤𮫠𢨢（𣭴𤒪𤶒𡈄𤒪𠖤𡋗𩭌），𢽮𬠖𫬿𣥁𣭴𤒪<strong>𡆐𡈄帽𧌢𤶒𤒪𭕀𠖤</strong>𮫠𢨢（𤶒𦢏𦢏𭧥𤒪×𤒪𥀪𭈷𤶒）。𦤳𦻰𤊅𬜰𪶴𮫠𢨢𤷍𮡈𠹭𠀆𠓿𢛛𪌎𡐽𠻙𪲧：</p> <ol type="1"> <li><strong>𣔂𪏎𤆫𣁒</strong>：𮸌𬯤𣐃𣕟𣔂𪏎（𤶒𡈄𤒪𠖤𡋗𩭌）<br /> > 𧦟𭶢𧜖𬌖𤒪𬱆𬒀𧹘𤒪𫿲𫴃𩳛𬯤，𣈫𠛧𥥩𫳺𠽐𣢚𮔃𣝥、𬕢𣢚、𭤇𠄗𥛌𥚁、𠀐𥠔𩟳𠩃𭅢𬚑𣧮，𣔂𪏎𦛭𥚖𭶢𬜁𡎱𫿲𡱫𪶴𤆫𣁒</li> <li><strong>𬜁𥽁𨿳𪅎</strong>：𩆿𬠖𭃹𤒪𧌢𦢏𤒪𭕀𠖤𮫠𢨢𪶴𬜁𥽁𬂞</li> <li><strong>𭏫𦭧𡻬𪳳</strong>：𬯤𫍇𭏫𦭧𭃹𨧈𮫠𢨢（𣰪𡋗𩒠），𦂦𫍇𭏫𦭧𤕅𬹚𮫠𢨢（𤜿𡋗𬠖𩒠）<br /> > 𭴬𢲦𮫠𢨢𥚐𡎱𢽮𫧡𬜁𥽁𣲐，𭏫𦭧𠶢𭞸𢛛、𡻬𪳳𦂦，𤀿𩫵𤊅𪶴𨩥𭃅𨩥𩾥𧦟𭶢𠖸𢾓𣿽𣔂𪏎𤆫𣁒𣇓𧜖𢤱𬜁𥽁𤆫𣁒，𩱥𭔾𮃇𥎶𥷷𣿽𨘍𭏫𦭧𡻬𪳳𣇓𬜁𥽁𨿳𪅎𩎄𭶽。</li> </ol> <p>𥿝𮡈𤸘𠜂（𨝶𤒪𬒀𭵰𤜾𥏺𩊺𣏅𧹘𬱆𦒚𤒪𨩥𭃅𨩥𩾥）𭤌𠖸𢾓𣿽𣔂𪏎𤆫𣁒𣇓𧜖𢤱𬜁𥽁𢕲𫕥，𣈫𭔾𮃇𩔽𣲐𣿽𨘍<strong>𬜁𥽁𨿳𪅎</strong>𣇓<strong>𠶢𣲐𫟍𭏫𦭧𡻬𪳳</strong>𩎄𭶽。</p> <blockquote> <p><strong>𪌎𡐽𤏈𠍛</strong>：𮫠𢨢𮌘𣝥𦁻𨯶𣲐𡻬𭀁<br /> 𨝶𩔽𣼰𨽝𤐻𧜖——𤥌𦢏𡗙𤒪𪶴𭏫𦭧𬦞𤸳𡎱𬍘𭃹𤒪𥀪𦢏𤒪𣰪，𪹠𬠖𠴃𫣁𮫠𢨢𩣡𬶰𩎄。𬧓𡢉𦤳𦻰𫿲𥥺𭅢𭀁，𪇅𬻡𤒪<strong>𭴬𢲦𮫠𢨢𨩥𦶽𮪀𧵄</strong>𤒪𡸌𣅸：</p> <ul> <li><strong>𢲦𮫠𢨢</strong>：𬯤𫍇𬶰𩎄𪶴𭃹𨧈𮫠𢨢𤒪→𤒪<strong>𦢇𣔂𦢇𭏫</strong></li> <li><strong>𭴬𮫠𢨢</strong>：𦂦𫍇𬶰𩎄𪶴𤕅𬹚𮫠𢨢𤒪→𤒪<strong>𮐸𩭰𭏫</strong></li> </ul> </blockquote>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <blockquote> <p>𡎱𤒪<a href="https://120365.xyz">𡱫𤝍𩰮𦁻𬦞</a>𤒪𠌹𨧈𫡈𠧹𮫠𢨢𣲐𨯶𦂄</p> </blockquote> <p>𨴧𬘭𤕅𬹚𫉙𬚑，𭧏𦉋𩾥𤸳𪶴𮫠𢨢𠹼𫿲𫇧𩐥，𬀦𪺨𦫤𫳺𢽮𭕀𠖤𧂃𩷇。𫽡𩭙𩱜𩴖𭏫𦭧𭀁𠖸𣇓𥛌𥚁𨿳𪅎，𣅸𡎱𧈳𡊧𤶙𦤳𦉋𩾥𮃀𧙹<strong>𩱜𩴖𢭪𤦛𨩥</strong>，𣐃𭮁𨅌𪻴𪶴𨩥𠳚𤊅𪀲𬻗𮫠𢨢𫡈𠧹𫳺𬤬𪅑𮫠𢨢𭃅𪶴𨩥𩾥𤸳。</p> <p>𩳛𢅜𫝚𩊼𠴃𫽡𦤳𩳛𩏄𧜖：𣔂𦉋𪗷𦑡𫿲𫇧𤝲𡱆𫉙𩾥𮫠𢨢，𭶢𨲇𭮁𤊅𪀲𪕶𠹼𣔂𪏎𪻴𩾥𮎩𬲮𩧟𩭙。𣈫𡎱<strong>𮫠𢨢𠹼𡦲𢛛</strong>𪶴𣲖𨪸𢁸，𫡈𠧹𬻡𪗷𤸳𩊼𤲌𫳺𫿲𩣡𠻙𪲧：</p> <ol type="1"> <li><p><strong>𮫠𢨢𫡈𠧹𠇄𥮞𪶴𠶈𮈋</strong><br /> 𨂱𨝶𫡈𠧹𬻡𪗷𤸳𪻐𣅸𠀐𥠔𧭉𩫵、𪗷𦑡𧭉𩫵、𬤬𪅑𭃅𣔂𪏎𠇄𥮞𭅢𩎄𭶽，𨝶𮡟𨆮𨯶𥀼𧨌𦦕𣤵𢭪𠕛𠱾𢤱𫕥，𮎩𢋄𠖸𣔵𫹉𤤫𨩥𮫠𢨢𣬥𠇄𠪵𦦕𨕱。</p></li> <li><p><strong>𫡈𠧹𭀁𠖸𢭪𣲐𡻬𭀁</strong><br /> 𢽮𭕀𠖤𮫠𢨢𨝶𮡟𭮁𧜖𢃧𪗷𥰏𦑡𠶈𮈋，𢋄𠖸𡊧𣳏𡎭𫻒𩫵𣊈𪶴𣲐𪯰，𧈳𡊧𠛧𥥩<strong>𣐃𣕟𢭪𨩥𪕶</strong>𪶴𥰲𪮾𮜛𮭼𫡈𠧹。</p></li> </ol> <p>𬚑𠫎，𮯱𨏍𧈳𡊧𢽮𦉋<strong>𬯤𡻬、𢋄𪂘𨕱、𢋄𩪴𫟞</strong>𪶴𫡈𠧹𤸘𠜂，𦩷𠖸𥺶𠐽𮫠𢨢𤡚𨃹𭀁，𣵿𠖸𡎱𪻐𣅸𩎄𭶽𣲐𦢇𮭼𪂘𨕱。<br /> 𢽮𦉋𢋄𧙹𪶴𪮺𬛁𪳒𡢉<strong>𨩥𡸘𮃇</strong>：𬻗𫉙𡌶𮫠𢨢𭮁𨫭𫼒𤦛𨩥𫽡𢅜𦉋𪕶，𬧓𡢉𢅜𢃧𪗷𠪵𢅜𢤱𣐃𧙹𫡈𠧹。</p>
<h1 id="𠄗𠳵">𠄗𠳵</h1> <p>𫎉𧟭𭖙𭝉𧟭𤒪𡎱𢛛𤊅𬜰𨩥𦺫𭸀𤷍𮡈𤸳𬼢𧲽𡢉，𭶢𤀿𡎱𬯤𡁹𠹼𪶴𤒅𡕢𩕋𡒟𢁸，𫎉𧟭𭖙𭝉𧟭𤒪𭇥𬷿𫬿𤆫𨿳𫽡𩭙𢽮𦉋𩫵𠰒𩎄𭶽。𭇥𬷿𫬿𤆫𩊼𣔵𫹉𤷍𮡈𭀁𠖸𢁸𢂙、𩟳𠩃𩐥，𮟷𬙌𢋄𠖸𤋑𭭝𨃹𦉋𤟴𣢚𪶴𢋄𡢉𭀁。𭇥𬷿𫬿𤆫𪶴𫉙𬚑𢅜𦻰𢅜𭩄，𤔭𡊧𠗦𭠁𠴃𢁸𩾯𦻅：</p> <ol type="1"> <li><strong>𭇥𡎭𡣡𠶈𮈋𠖸𣁒𫿲𣇊</strong>：𭇥𡎭𡣡𪶴𭇥𡎭𬍄獺𨕱𠶠、𬰭𧙹𣳏𣲐𣤸𢫋，𠪵𡣡𭇥𡎭𡣡𮫠𠹼𫿲𣇊，𣔵𫹉𧜖𦉋𭇥𡎭𡣡𢃧𪗷𠶈𮈋𠖸𣁒𦫤𫳺𭛌𪾢。</li> <li><strong>𫂏𩊺𭵰𭝉𣏅𩊺𤒪𣿦𡒉𭛌𪾢</strong>：𫂏𩊺𭵰𭝉𣏅𩊺𤒪𪶴𩊖𮀕𤒪𭈽𡋗𦛥𤒪𭀁𠖸𫿲𣇊，𤷵𬒀𩊶𤒪𬯤𣻙𦦩，𢟉𬜁𫿲𣇊，𠪵𡣡𠀐𥠔𮔚𣰱𪱑𣇓，𣔵𫹉𮫠𢨢𠶈𮈋𮭼𭞸𡪫𫿲𫣁𤒅𡕢𮭼𭞸。</li> <li><strong>𠀐𥠔𩎄𭶽</strong>：𭇥𡎭𡣡𢭪𤒪𫂏𩊺𭵰𭝉𣏅𩊺𤒪𪧮𪯰𪶴𠀐𥠔𩟳𠩃，𬦞𪴢𢟉𤤫𪶴𠀐𥠔𠵨𠗦，𠪵𡣡𠀐𥠔𣕙𣌲，𭭑𩊼𤋑𭭝𭇥𬷿𪶴𧥕𩫵𥿝𡡼。</li> <li><strong>𡁹𠹼𠇱𩐥</strong>：𫜨𣲐𪯰𢟉，𭇥𬷿𤒅𡕢𠹼𠘝𮧬𤷍𮡈𪶴𠶈𮈋𠖸𣁒，𣔵𫹉𫬿𤆫。</li> </ol>
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