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Introduction to dynamic SQL in oracle

provides the Execute immediate statement to Execute dynamic SQL statements. The syntax is as follows:Copy codeThe Code is as follows:Excute immediate dynamic SQL statement using binding parameter list returning into output parameter list; this statement is described as follows: 1) dynamic SQL refers to DDL and uncertain DML (that is, DML with parameters)2) The bound parameter list is the input parameter list, that is, the type is in, and the parameters in the runtime and dynamic SQL statements

Hard-coded credential authentication bypass vulnerability in multiple Datum Systems products

Hard-coded credential authentication bypass vulnerability in multiple Datum Systems products Release date:Updated on: Affected Systems:Datum Systems PSM-4500Datum Systems PSM-500Description:--------------------------------------------------------------------------------Bugtraq id: 68514CVE (CAN) ID: CVE-2014-2951Datum Systems PSM-4500 and PSM-500 are satellite modem series devices.The Datum Systems PSM-4500

Focus on the performance competition of several Cisco smart Switches

/100 Ethernet power ports, 252 Ethernet 10/100/1000 ports, or 9 10 Gigabit Ethernet ports. The integrated POE (802.3af) supports 240 port 10/100 or 240 port 10/100/1000. Cisco smart switch: Catalyst 4500 intermediate modular Chassis Catalyst 4500 with Supervisor Engine V. It is suitable for deployment of backbone networks, distribution layers, and service providers of small enterprises. Provides management

Linux source code tree

Linux source code tree-Linux general technology-Linux programming and kernel information. The following is a detailed description. Linux is used to support the source code of various architectures. It contains about 4500 C language programs and is stored in around 270 subdirectories. It contains about 2 million lines of code in total, which occupies about MB of disk space. Source code is in the directory:/usr/src/linux (in most linux releases) Linux

Build an L2L VPN between a vrodvdvti and a vro with the same PAT Device

0.0.0.0 10.1.1.2② R2Ip route 0.0.0.0 0.0.0.0 202.100.1.3Ip route 192.168.1.0 255.255.255.0 10.1.1.1③ R4Ip route 0.0.0.0 0.0.0.0 202.100.2.3Ip route 192.168.2.0 255.255.255.255.0 255.1.1.5 Ip route 192.168.3.0 255.255.255.0 30.1.1.6 ④ R5Ip route 0.0.0.0 0.0.0.0 255.1.1.4 ⑤ R6Ip route 0.0.0.0 0.0.0.0 30.1.1.4 B. Dynamic PAT Configuration:① R2Ip access-list extended 100Permit ip 192.168.1.0 0.0.255 anyPermit ip 10.1.1.0 0.0.255 anyInt e0/0Ip nat insideInt e0/1Ip nat outsideIp nat inside source lis

What is the secret to keep the vswitch system alive?

devices, evidence should be collected as soon as possible. We cannot place network analysis or intrusion detection devices next to each access layer switch, or carry the analyzer to the wiring room when suspicious traffic is detected. With the above analysis, we will see how to use the Catalyst function to meet these needs! Detects suspicious traffic Cat6500 and Catalyst 4500 (Sup IV, Sup V and Sup V-10 GE). It provides a hardware-based Netflow funct

What is the role of the switch system in the network?

should be collected as soon as possible. We cannot place network analysis or intrusion detection devices next to each access layer switch, or carry the analyzer to the wiring room when suspicious traffic is detected. With the above analysis, we will see how to use the Catalyst function to meet these needs! Detects suspicious traffic Cat6500 and Catalyst 4500 (Sup IV, Sup V and Sup V-10 GE). It provides a hardware-based Netflow function to collect tra

Explanation of IOS name meaning (1)

Different IOS versions and platforms have different content in each feature set. The specific feature content is subject to the Release Notes of the corresponding IOS version. IOS name is generally in the following format: PPPPP-FFFFF-MM PPPPP: IOS platform FFFFF: feature set MM: running environment and packaging ModeCiscoIOS Platform As5200 Cisco AS5200 Universal Access Server Ca1003 Cisco Advantage 1003 Ca1005 Cisco Advantage 1005 Cpa1003 Cisc

The iptables firewall only allows an IP address to access a port and a specific website.

received, and iptables-I Filter-m mac -- mac-source 00: 0F: EA: 25: 51 is disabled: 37-j DROPiptables-I Filter-m mac -- mac-source 00: 0F: EA: 25: 51: 37-p udp -- dport 53-j ACCEPTiptables-I Filter-m mac -- mac-source 00: 0F: EA: 25: 51: 37-p tcp -- dport 25-j ACCEPTiptables-I Filter-m mac -- mac-source 00: 0F: EA: 25: 51: 37-p tcp -- dport 110-j accept ipsec nat policy iptables-I PFWanPriv-d 192.168.100.2-j ACCEP Tiptables-t nat-a prerouting-p tcp -- dport 80-d $ INTERNET_ADDR-j DNAT -- to-des

The IPSecVPN traffic of two branches is tested at the headquarters.

interface Outside same-security-traffic permit intra-interface ---- because the next two branches the traffic goes through Outside, the Outside interface is used again, that is, the interface rebounded traffic, so traffic access from the same interface is required.B. Guangzhou headquarters Gateway Router GZWG:Interface Ethernet0/0Ip address 1.1.1.2 255.255.255.252Ip nat insideNo shutinterface Ethernet0/1Ip address 202.100.1.2 255.255.255.252Ip nat outsideNo shutip access-list extended PATPermit

Guard against typical spoofing and layer-2 attacks on CISCO switches

DAI technology, the user end cannot access the network using the specified address. • Because DAI checks the relationship between IP addresses and MAC addresses in the DHCP snooping binding table, man-in-the-middle attacks cannot be implemented and the attack tool becomes invalid. The following table lists the switch warnings for man-in-the-middle attacks: 3w0d: % SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Fa5/16, vlan 1. ([000b. db1d. 6ccd/192.168.1.200/2.16.0000.0000/192.168.1.2 •

IPSec NAT traversal Overview

of the IPsec contact. For UDP-encapsulated ESP transport mode, each dialogs send NAT-OA Ike payload during fast mode negotiation. The receiver stores this address in the parameters used for SA. Back to Top IPSec NAT-T solution for problems using IPsec through NAT The IPSec NAT-T addresses the problem of using IPsec through NAT in the following ways: Problem:Nat cannot update the upper-layer checksum.Solution:By sending the original address in the NAT-OA Ike payload, the receiver has all the

Basic SQL _dml statements (1)

on. Select deptno, AVG (SAL) from EMP Group by deptno; If you want to divide a group into groups, for example, each department group and each position group. Select deptno, job, AVG (SAL) avg_sal, from EMP Group by rollup (deptno, job ); Deptno job agv_sal ------------------------------------------------------------------- 10 clerk 4500 10 manager 8500 10 6500 20 clerk 5000 20 manager 9000 20 7000 6750 Among them, 6500 is the average salary of Depar

Connection and difference between video bit rate, frame rate, and resolution

actual AVI file for analysis: 1. Video avistreamheader: length = 4500, scale = 1, rate = 25. Therefore, the video frame rate of this file is 25/1 = 25. The video duration is 4500/25 = 180 seconds. These numbers are easy to understand. 2. audio avistreamheader: length = 2812, scale = 16000, rate = 2. When you first read the data and carefully analyze it, you can understand that for PCM audio, nblockalign is

Popular Japanese [3]

someone else. A: [zookeeper] [zookeeper/zookeeper.[Hotel] What is the price for a single [second room/Double Room? B) when the (strong) bandwidth exceeds 7000 then there are too many bandwidth exceeds limit.Single [second room/Double Room] 7000 yen per person per night. A.[Hotel] What is the price of a Japanese-style hotel room? B1. Zookeeper) when there are too many other users.The Japanese room is 4500 yen per person. This price includes the co

Mangos script Example 2

pain green 250 points sustained damage. Learn 23187 ice cream burn 1800 ~ 2000 million attacks. Learn 23205 temptation kiss. Learn 23220 + 100% speed. Learn 23224 shadow fog reduction Treatment. Learn 23271 transient strong + 175 spell attack and treatment effect. Learn 23275 585 ~ 610 attack fear. Learn 23278 shadow sickle looks good but not practical. Learn 23308 burning 4000 ~ 4500 attacks. Learn 23315 ignited the body multiple attacks and killed

Basic use of awk

result, the first column is the file name, the second column is the record number, and the third column is the number of fields for each record. #awk-F,‘{printFILENAME,NR,NF}‘employee.txtemployee.txt13employee.txt23employee.txt33employee.txt43employee.txt53 Awk variables and operators: Unary operator: +: Returns the current number. -: Negative number. ++: Auto-Increment --: Auto-Subtraction +: #catemployee-sal.txt101,JohnnyDoe,CEO,10000102,JasonSmith,ITManager,5000103,RajReddy,Sysadmin,4500104

Xuanyuan Jian-data set (5)

games, so do not worry too much about them. Wuyi and fengjue Today, I will refer to some bronzes that appear in the xuanyuan sword through the title, that is, the smog and the wind Jue.China has a long history of using copper. Our ancestors discovered and started using copper about six or seven thousand years ago. Adding tin and lead to copper can reduce its melting point to 800 or 900 degrees. Then it's easy. In this way, you can use it to create more tools and weapons and create some utensils

Enterprise internal network cabling

to the enterprise's network; good compatibility provides convenient conditions for network expansion and can protect the value of buyers. CISCO 4500 series switches are recommended in this location. The CISCO 4500 series switches provide excellent compatibility and provide non-blocking layer-2 switches, in this way, both old network devices and new network devices of the enterprise are compatible with each

ORCL Complex Queries

Test environment:CREATE TABLE Bqh6 (XM varchar2), Bmbh number (2), Bmmc varchar2 (), GZ int);INSERT into Bqh6 values (' Zhang San ', 01, ' Technical Support ', 3500);INSERT into BQH6 values (' John Doe ', 02, ' Research ', 4500);INSERT into Bqh6 values (' Harry ', 03, ' External mapping ', 5000);INSERT into Bqh6 values (' Xiao Cui ', 02, ' research and Development ', 8000);INSERT into BQH6 values (' Money six ', 01, ' Technical Support ', 5500);INSERT

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