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Exp General mode, exp direct path mode and EXPDP three-way export performance comparison

Exp General mode, exp direct path mode and EXPDP three-way export performance comparison1. First is the general path export of Exp:Exp Zhejiang/zhejiang file=/data1/zj_regular.dmp buffer=20480000The general Exp Export method was performed for 1 hours and 24 minutes.2. Direct path Export method:Exp Zhejiang/zhejiang file=/data1/zj_direct.dmp buffer=20480000recordlength=65535

Oracle9i statspack Report Analysis Direct path read wait event

%)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Buffer Nowait%: 99.54 Redo Nowait%: 100.00Buffer hit%: 97.66 in-memory Sort%: 93.03Library hit%: 98.20 Soft Parse%: 87.35Execute to Parse%: 92.04 Latch hit%: 98.16Parse CPU to parse elapsd%: 19.16% non-parse cpu:95.76 Shared Pool Statistics Begin End------ ------Memory Usage%: 86.21 86.82% SQL with executions>1:52.42 54.94% Memory for SQL w/exec>1:49.55 51.72 Top 5 Timed Events~~~~~~~~~~~~~~~~~~% TotalEvent Waits Time (s) Ela time-----------------

Configuration of direct connection to Oracle database through SDE

In useSDE ServiceConnectionOracle DatabaseTo avoid faults when there are many SDE users connected, SDE provides a direct connection to Oracle, that is, the connection through Oracle. This article mainly introduces some settings for SDE to directly connect to the Oracle database. Next we will introduce it. Advantages of direct connection: 1) do not manage the ArcSDE service. Directly connect to the data ware

Full-link ing between cache and memory, difference between direct ing and group-connected ing

example, the master storage capacity of a machine is 1 MB, the cache capacity is 32 KB, and the size of each block is 16 characters (or bytes ). Specify the address format, directory table format, and capacity of the master and cache.Capacity: same as the number of buffer blocks, that is, 211 = 2048 (or 32 K/16 = 2048 ). Advantage: high hit rate and high cache storage space utilization.Disadvantage: when accessing the relevant memory, each time it is compared with all the content, the speed is

Oracle bug: Warning: cocould not lower the asynch I/O limit to 224 for SQL direct I/O. It is set to-1

If the Alert Log contains the following information: * ** Session ID: (538.48) 08:41:30. 649 Warning: cocould not lower the asynch I/O limit to 224 for SQL direct I/O. It is set to-1 Warning: cocould not lower the asynch I/O limit to 192 for SQL direct I/O. It is set to-1 Warning: cocould not lower the asynch I/O limit to 224 for SQL direct I/O. It is set to-1

Implementation of image cutting using direct technology

Xuyan: This is a superficial article. Strictly speaking, it is not a technical article. It can only be said that it is a bit of your own experience in learning direct programming, however, it still contains a lot of basic knowledge about Win32 programming and direct programming. Here, we are looking to make a little effort for our friends who are engaged in direct

Javascript references in asp.net (direct and indirect introduction)

There are many methods to introduce Javascript in Asp.net. I mainly talked about the following two types during my career as a cow. In my opinion, it can be divided into direct or indirect introduction. 1. Direct Introduction. Call custom javascript Functions on the front-end page:1. Open the front-end page and add the script element between the head element and set the type element to "text/javascript ".

Java String and String direct volume and String resident pool...

String is one of the core classes in java programming language. It is widely used and widely used.But do you know what is the direct string volume? Do you know there is a string resident pool? The string resident pool can be used to cache the direct string volume. What is a direct volume?Direct Volume refers to the val

Talking about the direct output of react homogeneous style and the react homogeneous Style

Talking about the direct output of react homogeneous style and the react homogeneous Style Preface As mentioned above, through Homogeneous server rendering, you can directly export the html structure. Although we have explained the solutions for introducing problems to static resources such as styles and images on the server, we have not actually performed any relevant operations, this article explains how to make the style output as html. PS:

Samsung SL-C480FW how to achieve mobile phone WLAN direct connection printing?

SL-C480FW supports WLAN direct connection printing function, in the mobile phone to enable WLAN direct connection and printer connection, the machine can receive the phone print signal, to achieve wireless printing, the specific operation method is as follows:1. Connect the mobile phone to the printer directly through WLAN1. Here we use Samsung Galaxy Note4 as an example. Click the Settings icon on your pho

Direct selection of the correct implementation of two data for sorting and exchanging

Article Reference address: http://blog.csdn.net/morewindows/article/details/6671824 The direct selection sort and the direct insert sort, all divide the data into the ordered and unordered areas, the difference is that the direct insertion sort is to insert the first element of the unordered area directly into the ordered area to form a larger ordered area, and t

10. Direct select sort and reverse sort

Packagecom.xxx.xxx;/*** 1. Direct Select Sort * 2. Reverse sort *@authorAdministrator **/ Public classdemo11 {//Direct Select Sort /*** Direct selection sort is faster than bubble sort * Basic idea: Compare the specified sort position with other array elements to meet on the exchange * (Note: Here the bubble sort is not exchanged, instead of exchanging adjacen

Data structure-Direct insertion Sort method

data Structure-Direct insertion sort method. The previous blog has introduced the bubble sort methodand simple choice sorting method. In fact, the above two basic ideas are the same, that is, through the two-tier cycle, in every 1 internal loops to find 1 unordered extremum elements, and then move this element to the forefront of the array. But the basic idea of the direct insertion sort method introduced

Oracle Direct IO+ASM causes CSS initialization

A database upgrade to 12c (the application code has also been upgraded), there are a lot of CSS initialization waiting: Sql> Select Event,sql_id,count (*) from v$sessionWhere event= ' CSS initialization ' GROUP by event,sql_id; EVENT sql_id COUNT (*)---------------------- ------------- ----------CSS Initialization 1QKDW0DTYJYDF 5CSS Initialization 2g9g4as2nasad 1CSS Initialization 5r5mwas0m4mxq 1CSS Initialization 712df0y5u236f 529CSS Initialization Aasd9k80jrvax 342CSS Initialization A4uvs112

tutorial on how to use selection tools and direct selection tools in AI

In the AI software, there are two arrows, black arrows and white arrows, respectively, "selection tool" and "Direct selection Tool", they have how the difference, how to use the method? Here is a detailed introduction for everyone, to see it! Steps 1. In order to facilitate the explanation, we first use the Pen tool, any drawing of a half heart-shaped graphics 2, when we use the Black arrow "select Tool", and then click the graphic with the mouse

Sorting algorithm four direct selection sort __ data structure and algorithm

1, directly select the concept of sorting: Select the smallest element from the disordered area and put it directly into the end of the ordered area. The direct selection sort and the direct insertion sort, all divide the data into ordered and unordered areas, the difference is that the direct insertion sort is to insert the first element of the unordered area

Data structure and algorithm--Direct Insert Sort

Haven't written a blog for a long time, today simple summary under the direct insertion sort.What is a direct insert sort?inserting a sort directly is to compare an element to an element in the order table and then insert it in the appropriate position so that the entire order table is in an orderly state. the book on the structure of statistics will be used to illustrate the analogy of poker, just like pla

The direct insertion sort of Java implementation of common algorithm

Direct insertion sorting is the insertion of unsorted data into an appropriate position in the ordered sequence.  The process is as follows: 1, first compare the array of the first two data, and sort, 2, compare the third element with the first two rows of data, and put the third element in the appropriate position, 3, compare the fourth element with the first three ordered data, and put the fourth element into the appropriate position;  4, until the

C + + Direct and Copy Forms of initialization

Extraction from C + + Primer 5th. Editioin 3.2.1C + + has several different forms of initialization, we should understand how these forms differ from one aother.When we initialize a variable using =, we is asking the compiler to copy initialize the object by copying the Itializer on the right-hand side into the object being created.Ohterwise when we omit the =, we use direct intialization. When we had a single intializer, we use either the

Insert class sort (direct insert sort)

1. Direct Insert Sort1) Time complexity:T (n) =o (n^2);2) Spatial complexity:S (n) =o (1); 3) Introduction: Direct insertion Sorting is one of the most basic methods of inserting sorting, the basic idea of inserting a sort directly (straight insertion sorting) is to look at the elements of N to be sorted into an ordered table and an unordered table, starting with The ordered table contains only one element,

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