oracle learning library

reads. The method of design and optimization is to reduce the logical reading of individual statements, or to reduce their execution times. In addition, some computational functions, such as custom functions, decode, etc. frequently used, will also consume a lot of CPU time, causing the system load, the correct design method or optimization method, need to avoid the calculation process, such as saving the results to statistics is a good way. (2) disk subsystem in an OLTP environment, its load c

are slightly different, and many very small elements are left in the matrix, which results from the computer processing error. Enter the following command to get the error value:>>> MyEye = Randmat*invrandmat>>> Myeye-eye (4)Matrix ([[ 0.00000000e+00, -4.44089210e-16, -4.44089210e-16, -3.33066907E-16], [ -8.88178420e-16, 2.22044605e-16, 0.00000000e+00, 5.55111512E-17], [ 4.44089210e-16, 0.00000000e+00, 0.00000000e+00, -5.55111512E-17],

Alert warning error found in the test database today Memory Notification: Library Cache Object loaded into SGAHeap size 2919 K exceeds notification threshold (2048 K)KGL object name: selectService_name, uio_waits, uio_time, con_waits, con_time,Adm_waits, adm_time, net_waits, net_timeFrom(SelectStat1.service _ name service_name, db_time, uio_waits, uio_time,Con_waits, con_time, adm_waits, adm_time, net_waits, net_timeFrom(Select s1.service _ name,Sum (

1. Hardware environmentIBM X3850 X5 Server 4 CPU 10 cores2 Software EnvironmentWindows R2 Enterprise Edition, Oracle 11.2.0.1Today in the customer site to install the Oracle process is smooth, software, monitoring are installed, and finally in the DBCA to create a library when the card has been stuck in 2% for half an hour or still not continue, and then check th

This example describes the use of Oracle Cross Library query Dblink. Share to everyone for your reference, specific as follows: 1. Before you create a job Before you create a dblink, first check to see if the user has appropriate permissions. For a specific user, after logging in using Sqlplus user/pwd, execute the following statement: Copy Code code as follows: SELECT * from User_sys_privs

Oracle 11g RAC DBCA to create a listener when building a libraryWhen you install an Oracle 11g RAC, you are prompted to create a listener when you use DBCA to build the library:The Default Listener "Listener" is not a configured in Grid Infrantructure home. Use NETCA to configure Default Listener and return DBCA650) this.width=650; "title=" 4.png "alt=" wkiom1keisrsvl5aaadjwco-yae862.png-wh_50 "src=" https:

The Enterprise Library of Enterprise Library does not provide an SQL script to record logs to the Oracle database. To enable logging to the Oracle database, write the following script: spool DDD.logpromptprompt Creating table ORACLE_ENTLOGprompt ============================promptcreate table ORACLE_ENTLOG( ID

OTL use method 1 source http://otl.sourceforge.net/http://otl.sourceforge.net/otlv4_h.zip () 2 install 2.1 Windows XP, vc6.0, oracle8.1.61) unzip the downloaded installation package to C: /program files/Microsoft Visual Studio/vc98/otlv4_h/otlv4.h. 2) Add C:/program files/Microsoft Visual Studio/vc98/otlv4_h in tools> Options> directories> include files under VC. If the OCI path is not set, 3) add C:/Oracle/ora81/OCI/include to tools> Options> directo

Tags: back ade name int import data style import build table onsExcel Import Oracle Library? Build table ? /*==============================================================*/ / * DBMS name:oracle Version 10gr2 * / / * Created on:2017/9/18/Monday 14:19:00 * / /*==============================================================*/ ? ? DROP TABLE DWSB_GRMX1 cascade constraints; ? /*

Linux C Programming learning-static Link Library and linux programming static Link At the C language level, code reuse is usually implemented through libraries. In the traditional sense, a library refers to a file ending with the suffix.. Strictly speaking, the function library should be divided into two types: static

Oracle Kernel: Function kglic Library Cache Latch if you have encountered such problems, you can refer to this article. The following is a brief description of the functions of the KGLIC function: The Code is as follows: Copy code 1. kglic means Kernel Generic Library cache Iterate Chain (AFAIK), it's the function which is executed when y

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!Python's standard library is a powerful force for Python, as we've already described in the previous article. Because the standard library involves a wide range of applications, it is necessary to learn some background knowledge.Hardware principlesThis part needs to understand the functions and performance

Oracle learning notes series ------ special tables for oracle operation examples and oracle Stored Procedure examples CREATE TABLE dept( deptno NUMBER(2), dname VARCHAR2(14) , loc VARCHAR2(13) ) ; CREATE TABLE emp( empno NUMBER(4), ename VARCHAR2(10), job VARCHAR2(9), mgr NUMBER(4), hiredate D

Catalogue Tweenmax Animation Library Learning (i.) Tweenmax Animation Library Learning (ii) Tweenmax Animation Library Learning (iii) Tweenmax Animation Library

Tags: style io strong data for AR problem CTIAs you can see from the following example, the recompilation of objects in the production database causes the library cache lock, so you should try to avoid compiling objects during peak business hours. If there is a complex dependency in the package or process, it is very easy to cause the library cache lock to appear, so in the process of application developmen

Author: vamei Source: http://www.cnblogs.com/vamei welcome reprint, please also keep this statement. Thank you! The Python standard library is powerful for python and we have already introduced it in the previous article. The standard library involves a wide range of applications, so you need to learn background knowledge. 1. Computer Hardware principles This part needs to be understoodMemory, C

Tags: des style http io ar os using SP strongThis article describes the Oracle database method for cross-Library queries using Dblink, the Oracle Dblink cross-Library query tutorial, which is required by a friend reference. Oracle Dblink cross-

Release date: 2011-10-25Updated on: 2011-10-25 Affected Systems:Oracle Sun Solaris 9_x86Oracle Sun Solaris 9_iscsiOracle Sun Solaris 9 ExpressOracle Sun Solaris 8_x86Oracle Sun Solaris 8_iscsiOracle Sun Solaris 8 ExpressOracle Sun Solaris 10_x86Oracle Sun Solaris 10_iscsiOracle Sun Solaris 10 ExpressDescription:--------------------------------------------------------------------------------Cve id: CVE-2011-3508 Oracle Sun Solaris is a commercial ope