http://pollochang.work/categories/mssql/ Recent content in MSSQL on PolloChang 工作筆記 Hugo -- gohugo.io zh-TW © 2026 PolloChang Wed, 13 Mar 2024 23:41:46 +0800 http://pollochang.work/worknot/worknot-20240313-2/ Wed, 13 Mar 2024 23:41:46 +0800 http://pollochang.work/worknot/worknot-20240313-2/ <h2 class="relative group">查詢執行很久的SQL <div id="查詢執行很久的sql" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e6%9f%a5%e8%a9%a2%e5%9f%b7%e8%a1%8c%e5%be%88%e4%b9%85%e7%9a%84sql" aria-label="定位點">#</a> </span> </h2> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">2 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">3 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">4 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">5 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">6 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">7 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">8 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-sql" data-lang="sql"><span style="display:flex;"><span><span style="color:#66d9ef">SELECT</span> TOP <span style="color:#ae81ff">10</span> </span></span><span style="display:flex;"><span> [<span style="color:#960050;background-color:#1e0010">總執行時間</span>(<span style="color:#960050;background-color:#1e0010">秒</span>)] <span style="color:#f92672">=</span><span style="color:#66d9ef">CAST</span>(a.total_elapsed_time <span style="color:#f92672">/</span> <span style="color:#ae81ff">1000000</span>.<span style="color:#ae81ff">0</span> <span style="color:#66d9ef">AS</span> DECIMAL(<span style="color:#ae81ff">16</span>, <span style="color:#ae81ff">2</span>)) </span></span><span style="display:flex;"><span>, [<span style="color:#960050;background-color:#1e0010">執行次數</span>] <span style="color:#f92672">=</span>a.execution_count </span></span><span style="display:flex;"><span>, [<span style="color:#960050;background-color:#1e0010">平均執行時間</span>(<span style="color:#960050;background-color:#1e0010">秒</span>)] <span style="color:#f92672">=</span><span style="color:#66d9ef">CAST</span>(a.total_elapsed_time <span style="color:#f92672">/</span> <span style="color:#ae81ff">1000000</span>.<span style="color:#ae81ff">0</span> <span style="color:#f92672">/</span> a.execution_count <span style="color:#66d9ef">AS</span> DECIMAL(<span style="color:#ae81ff">16</span>, <span style="color:#ae81ff">2</span>)) </span></span><span style="display:flex;"><span>, [SQL指令] <span style="color:#f92672">=</span><span style="color:#66d9ef">SUBSTRING</span> (b.text,(a.statement_start_offset<span style="color:#f92672">/</span><span style="color:#ae81ff">2</span>) <span style="color:#f92672">+</span> <span style="color:#ae81ff">1</span>,<span style="color:#ae81ff">500</span>) </span></span><span style="display:flex;"><span><span style="color:#66d9ef">FROM</span> sys.dm_exec_query_stats a <span style="color:#66d9ef">CROSS</span> APPLY sys.dm_exec_sql_text(a.sql_handle) <span style="color:#66d9ef">as</span> b </span></span><span style="display:flex;"><span><span style="color:#66d9ef">WHERE</span> a.total_elapsed_time <span style="color:#f92672">&gt;</span> <span style="color:#ae81ff">0</span> <span style="color:#66d9ef">AND</span> B.[text] <span style="color:#66d9ef">NOT</span> <span style="color:#66d9ef">LIKE</span> <span style="color:#e6db74">&#39;%SCHEMA_NAME%&#39;</span><span style="color:#75715e">--去除一些系統的SQL指令 </span></span></span><span style="display:flex;"><span><span style="color:#66d9ef">ORDER</span> <span style="color:#66d9ef">BY</span> [<span style="color:#960050;background-color:#1e0010">平均執行時間</span>(<span style="color:#960050;background-color:#1e0010">秒</span>)] <span style="color:#66d9ef">DESC</span></span></span></code></pre></td></tr></table> </div> </div></div> <h2 class="relative group">查詢資料庫版本 <div id="查詢資料庫版本" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e6%9f%a5%e8%a9%a2%e8%b3%87%e6%96%99%e5%ba%ab%e7%89%88%e6%9c%ac" aria-label="定位點">#</a> </span> </h2> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-sql" data-lang="sql"><span style="display:flex;"><span><span style="color:#66d9ef">SELECT</span> <span style="color:#f92672">@@</span><span style="color:#66d9ef">VERSION</span> <span style="color:#66d9ef">AS</span> <span style="color:#e6db74">&#39;SQL Server Version Details&#39;</span></span></span></code></pre></td></tr></table> </div> </div></div> <ul> <li>查詢結果</li> </ul> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">2 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">3 </span><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">4 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-text" data-lang="text"><span style="display:flex;"><span>Microsoft SQL Server 2014 - 12.0.2000.8 (X64) </span></span><span style="display:flex;"><span> Feb 20 2014 20:04:26 </span></span><span style="display:flex;"><span> Copyright (c) Microsoft Corporation </span></span><span style="display:flex;"><span> Standard Edition (64-bit) on Windows NT 6.2 &lt;X64&gt; (Build 9200: ) (Hypervisor)</span></span></code></pre></td></tr></table> </div> </div></div> <h2 class="relative group">權限認識 <div id="權限認識" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e6%ac%8a%e9%99%90%e8%aa%8d%e8%ad%98" aria-label="定位點">#</a> </span> </h2> <h3 class="relative group">MS SQL 伺服器角色 <div id="ms-sql-伺服器角色" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#ms-sql-%e4%bc%ba%e6%9c%8d%e5%99%a8%e8%a7%92%e8%89%b2" aria-label="定位點">#</a> </span> </h3> <p>Data type mapping for other data types:</p>