how object statistics can make your execution plan wrong

... Environment��������������������������������������������������������17 ■■ Chapter 3: How Object Statistics Can Make Your Execution Plan Wrong ������������������������39 ■■ Chapter 4: How Skewness Can Make Your Execution Times Variable�����������������������������53 ... statistics from a convenient time Figure 3-7.  If your table statistics are very volatile, you may be better off locking them 46 Chapter ■ How Object Statistics Can Make Your Execution Plan Wrong ... which was 100 percent analyzed 40 Chapter ■ How Object Statistics Can Make Your Execution Plan Wrong Figure 3-1.  In the “Table Statistics section you can see the number of rows in a table, the...

Ngày tải lên: 17/03/2014, 19:20

... with Edit menu commands Draw Frame Objects Make sure that the X-Y Plane @ Z=0 view (plan at lowest elevation) is active (see Step1-D for directions on how to make a view active and page 2-14 for ... sure that the plan view is active and click the XZ View button Your model now appears as shown in Figure 15 Figure 15 Model after frame objects have been added in plan Step Add Frame Objects - 15 ... as shown in Figure 21 Step Add Area Objects - 21 Introductory Tutorial for SAP2000 Version Figure 21 Model after the area objects have been drawn Mesh the Area Object Make sure that the X-Y Plane...

Ngày tải lên: 06/09/2012, 15:56

... then cooled down to approximately 45 °C, re-scanned to approximately 225 °C, cooled down again, and subsequently scanned to 240 °C The results are shown in Figure The solid–solid phase transition ... second scan may have contributed to the small shift in the onset temperature The endotherm was not observed during the third scan, because the sample melted at 210 °C during the second scan In ... In fact, Form I can be 852 • Vol 11, No 5, 2007 / Organic Process Research & Development converted to Form III by refluxing a slurry in 95/5 acetone/ water Form III, however, cannot be converted...

Ngày tải lên: 14/02/2014, 03:20

... on the canvas will change its state, and make the canvas provide the artist with new input that then will provoke another action in the artist, who will again change the state of the canvas, ... can have repercussions on contemporary technology Penny (1999) penetrates the differences between artist and scientists with respect to how they employ the technology of their times, showing how ... how deeply embodied the object is into the agent or the agent is into the object In the first case, the agent feels the object is an extension of him; in the second, the object controls the agent...

Ngày tải lên: 19/02/2014, 17:20

... “densest” areas We show that this principle is also beneficial for the text-database world We also show how we can The query interface is available at http://www.cancer.gov/search/cancer_literature/ ... CompletePlanet7 These databases have http://www.invisibleweb.com/ http://www.completeplanet.com/ 16 Web Database U of Michican Cancer Center Java @ Sun.com John Hopkins AIDS Service URL http://www.cancer.med.umich.edu/search.htm ... summary for CancerBACUP, which is in the same category as CANCERLIT, to allow CANCERLIT to be selected when the “Cancer” category is selected (the ActualDFest (metastasis) frequency from CancerBACUP...

Ngày tải lên: 23/03/2014, 16:21

... factors like objectives, method of sampling and resources available If the objective is to study health hazards and material damages, then locations should be kept close to the objects where ... concentration values The specific time-averaged concentration data can then be obtained from continuous records Time-averaged data can also be obtained by sampling for a short time – i.e by sampling ... be away from the sources of pollution It can also be done by gridding the entire area to get statistically recommended values The number of locations however depends upon the variability of concentration...

Ngày tải lên: 29/03/2014, 14:20

... frame/cable/tendon objects, connecting link objects can have zero length Area objects: Are used to model walls, floors, and other thinwalled members, as well as two-dimensional solids (plane stress, plane ... Options The types of objects present in a Display Window can be controlled Also various options can be set to affect how the objects appear and what features are displayed, such as object labels, property ... deselect objects by their various features, such as: All objects on a particular plane All objects that have a given section or property type All line objects parallel to a particular line All line objects...

Ngày tải lên: 01/04/2014, 03:20

... integrated with the plant’s Distributed Control Systems (DCS) can be used to capture, maintain and develop existing operating skills Among others, a fully deployed operator training system can be used ... between the process subunits can become obvious Further, the process reaction to disturbances (such as feed variation, instruments failure or change of operation strategy) can be fully investigated ... known that big and fast changes in the plant operating conditions should be avoided, since the effects of moving from one operational region to another can be unanticipated and possibly dangerous...

Ngày tải lên: 01/04/2014, 10:51

Ngày tải lên: 03/05/2014, 16:07

... operation.1,2 However, radiation from the exit-plane of near-field optical elements is only collimated within tens of nanometers, beyond which it diverges and its intensity decreases significantly.2–4 ... (six shown) of ISPI patterns and a number of islands (four shown) The bowtie apertures were milled on top of the island using focused ion beam milling [Fig 2(d)] The use of the islands can reduce ... piezoelectric stage moves, Fig 5(c) shows variation of the gap distance is about 40 nm over a scanning distance of 100 lm without the feedback control, which can be caused by a small tip–tilt angle...

Ngày tải lên: 06/05/2014, 08:53

... (word) yifu clothes ∗ wo zuo ta I make him (‘I make things for him.’) wo gen ta zuo I with him make ‘I make clothes with him.’ yifu clothes ∗ wo zuo ta I make him (‘I make things with him.’) wo xiang ... pillow’ / ‘They tabled the matter.’ Example shows a ditransitive, in which the direct object, but not the indirect object, can undergo NI Example shows NI of a path, an instrument and an unaccusative ... aforementioned elements can appear in preverbal PPs (the canonical position for adjunct PPs), while paths, locations and instruments can optionally appear in the canonical object position in Mandarin...

Ngày tải lên: 30/05/2014, 22:57

... understand how the technique works and under what conditions it can be used most effectively Guidance is provided on how to use the Environmental Protection Agency (EPA) Data Quality Objectives ... Appendix A Data Quality Objectives Summary Report Template A-1 Appendix B Sampling and Analysis Plan Template B-1 (Accompanying CD-ROM Electronic Templates for Data Quality Objectives Summary ... .66 4.1.1.6 Preparing a DQO Summary Report 121 4.1.1.7 Sampling and Analysis Plan .121 4.2 Scanning and Direct Measurement Methods 127 4.2.1 Typical Radiation Instrumentation...

Ngày tải lên: 18/06/2014, 19:20

... data quality objectives (DQO) process is used to support the development of a Sampling and Analysis Plan, which is composed of a Quality Assurance Project Plan and a Field Sampling Plan Site characterization ... of the federal government The objective of the EIS is to provide a full and fair discussion of significant environmental impacts, and is used to inform decision makers and the public of the reasonable ... significant impacts on the environment, a FONSI is published An EA can facilitate preparation of an EIS when one is needed, but is not necessary if it is already known that there will be significant...

Ngày tải lên: 18/06/2014, 19:20

... (carbon-14) will emit a beta particle leaving a stable nitrogen atom There are, however, three decay series found in nature that make up the radionuclides at most radioactively contaminated sites: the ... energetic electron, but unlike electrons, beta particles can have a +1 or a –1 charge Beta particles are emitted from the nucleus of an atom and can have energies in the million-electronvolt range ... energy dependent and it may travel several feet in air Beta particles can penetrate the dead layer of cells on skin, but cannot penetrate through thin layers of paper, aluminum, wood, etc To...

Ngày tải lên: 18/06/2014, 19:20

... distribution is known, a parametric test can make use of that additional information However, if the sampling distribution is different from that assumed, the results can be unpredictable A primary advantage ... in Figure 4.18, VSP can simultaneously show the following views: • Map View: Shows the site map, selected sampling areas, and defined sampling locations • Cost View: Presents statistics related ... environmental site, the objective is almost always to show that a site is clean after remediation is complete, the null hypothesis should assume the site is contaminated until shown to be clean 4.1.1.5.6.3.4...

Ngày tải lên: 18/06/2014, 19:20

... when and how it occurred, and how it is being addressed; • Detailed description of any accidents that occurred, noting who received the injury, how it occurred, how serious the injury was, how the ... when, how, and where equipment was decontaminated, and what was done with the wastewater; Description of any mechanical problems that occurred at the site, noting when and how it occurred, and how ... description of any accidents that occur, noting who received the injury, how it occurred, how serious the injury was, how the person was treated, and who was notified It is essential that field...

Ngày tải lên: 18/06/2014, 19:20

... applicability to objectives such as risk assessment would be questionable However, for site characterization studies and definition of contamination nature and extent for engineering planning purposes ... methods specified in the Sampling and Analysis Plan; • Samples did not exceed the maximum analytical holding times specified in the Sampling and Analysis Plan; • Sample chain-of-custody was not broken ... and Sampling and Analysis Plan • Sample matrix spike duplicate or duplicate comparisons meet minimum precision requirements specified in the DQOs and Sampling and Analysis Plan • Sample dilution...

Ngày tải lên: 18/06/2014, 19:20

... decision-making purposes Consequently, the data management plan should describe how data will be made accessible to decision makers Decision makers tend to have very individualistic software demands ... and analysis plans simply referencing the master data management plan, calling out project-specific requirements where necessary For smaller sites, a project-specific data management plan may be ... result can be lost records The data management plan should clearly specify for each data source which data fields require a standardized entry, and should specify where those standardized entries can...

Ngày tải lên: 18/06/2014, 19:20

... analysis plan, data verification/validation packages, maps showing final sampling locations, and any design change notices • Review the project DQO summary report and sampling and analysis plan to ... Reviewed the sampling design rationale Sampling and Analysis Plan Reviewed the project-specific sampling and analysis plan 2a Reviewed maps showing proposed sampling locations 2b Reviewed analytical ... Showing Actual Sampling Locations Reviewed project-specific maps showing actual sampling locations, and compare against the requirements specified in the DQA report and sampling and analysis plan...

Ngày tải lên: 18/06/2014, 19:20

... covered Scan the surfaces of the equipment for gross alpha and gross beta/gamma activity to determine if equipment meets radiological release limits Collect swipe samples from the areas showing ... air dry Scan the surfaces of the equipment for gross alpha and gross beta/gamma activity to determine if equipment meets radiological release limits Collect swipe samples from the areas showing ... air dry Scan the surfaces of the equipment for gross alpha and gross beta/gamma activity to determine if equipment meets radiological release limits Collect swipe samples from the areas showing...

Ngày tải lên: 18/06/2014, 19:20