tag:blogger.com,1999:blog-3698286671164950680.post6947186135167830801..comments2024-01-01T08:57:50.590+08:00Comments on CaryHsu - 學無止盡: 如何解讀 SQL Server 的圖型式執行計畫caryhsuhttp://www.blogger.com/profile/07173096355002736623noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-3698286671164950680.post-64711120847334841072022-03-13T12:48:16.176+08:002022-03-13T12:48:16.176+08:00Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>&...Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?42" rel="nofollow">Download Now</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?90" rel="nofollow">Download Full</a></b><br><br>Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?77" rel="nofollow">Download LINK</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?53" rel="nofollow">Download Now</a></b><br><br>Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?23" rel="nofollow">Download Full</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?89" rel="nofollow">Download LINK</a></b> 2m Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-38370559122394284722022-03-13T12:47:36.904+08:002022-03-13T12:47:36.904+08:00Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>&...Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?42" rel="nofollow">Download Now</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?90" rel="nofollow">Download Full</a></b><br><br>Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?77" rel="nofollow">Download LINK</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?53" rel="nofollow">Download Now</a></b><br><br>Caryhsu - 學無止盡: 如何解讀 Sql Server 的圖型式執行計畫 >>>>> <b><a href="http://7url.top/glGuB?23" rel="nofollow">Download Full</a></b><br><br>>>>>> <b><a href="http://7url.top/glGuB?89" rel="nofollow">Download LINK</a></b> Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-17513086632945909942013-07-04T18:34:05.240+08:002013-07-04T18:34:05.240+08:00關於兩者的差異說明如下,關於兩者之間我也是有遇過實際與評估的不同的情況,但其實不會相差太多的。
E...關於兩者的差異說明如下,關於兩者之間我也是有遇過實際與評估的不同的情況,但其實不會相差太多的。<br /><br />Estimated and Actual Execution Plans<br /><br />As discussed previously, there are two distinct types of execution plan. First, there is the plan that represents the output from the optimizer. This is known as an Estimated execution plan. The operators, or steps, within the plan will be labeled as logical, because they're representative of the optimizer's view of the plan.<br /><br />Next is the plan that represents the output from the actual query execution. This type of plan is known, funnily enough, as the Actual execution plan. It shows what actually happened when the query executed.caryhsuhttps://www.blogger.com/profile/07173096355002736623noreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-69660127282959597212013-07-01T16:02:46.133+08:002013-07-01T16:02:46.133+08:00讀了你的文章,受益良多。
想請教一個問題,Execution plan上面所顯示的很多項目都是Es...讀了你的文章,受益良多。<br /><br />想請教一個問題,Execution plan上面所顯示的很多項目都是Estimated Cost, 例如CPU, IO, Subtree<br /><br />他顯示的是Estimated,那會不會實際執行的時候,會有所差異?<br /><br />(即使我選擇Actual Execution plan,很多項目仍是顯示Estimated Cost)<br /><br />謝謝Martynoreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-82670173632178615332013-01-25T13:21:52.497+08:002013-01-25T13:21:52.497+08:00Hi 你好:
你從子樹上應該也可以看到這個子樹的執行成本,所以還是可以看到,而且透過執行計畫應該你...Hi 你好:<br /><br />你從子樹上應該也可以看到這個子樹的執行成本,所以還是可以看到,而且透過執行計畫應該你也可以點開這個子樹的部份,藉以參考,如果仍有不清楚的部份,歡迎再討論,謝謝。caryhsuhttps://www.blogger.com/profile/07173096355002736623noreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-45701827842095245382013-01-18T07:43:04.375+08:002013-01-18T07:43:04.375+08:00hi~您好
最近在學SQL, 偶然發現了您的文章,
想請教一下,
假設我有兩個SQL, 是要做...hi~您好<br /><br />最近在學SQL, 偶然發現了您的文章, <br />想請教一下, <br />假設我有兩個SQL, 是要做相同的事情,<br />實際執行起來, 感覺不到差異,<br />那是否可以執行計畫最左邊的節點之子樹成本判別其優劣呢?<br /><br />thanksAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-64941279581851853122011-12-07T09:44:59.559+08:002011-12-07T09:44:59.559+08:00Hi Maxisam:謝謝你了。Hi Maxisam:謝謝你了。caryhsuhttps://www.blogger.com/profile/07173096355002736623noreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-52879958973383139352011-12-04T05:17:36.330+08:002011-12-04T05:17:36.330+08:00Very informative !Very informative !Maxisamhttps://www.blogger.com/profile/08237979733822583410noreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-922407007833641562011-10-01T13:57:31.655+08:002011-10-01T13:57:31.655+08:00to Vasili: 謝謝你了。to Vasili: 謝謝你了。caryhsuhttps://www.blogger.com/profile/07173096355002736623noreply@blogger.comtag:blogger.com,1999:blog-3698286671164950680.post-6322907401706882592011-09-29T11:04:22.438+08:002011-09-29T11:04:22.438+08:00好文章,對 Programmer 很有幫助!好文章,對 Programmer 很有幫助!Vasilihttps://www.blogger.com/profile/15141604682547523662noreply@blogger.com